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产品型号HT9320L的Datasheet PDF文件预览

HT9320 Series  
22-Memory Tone/Pulse Dialer  
Patent Number: 64097, 86474, 113235(R.O.C.), 5424740(U.S.A.)  
Features  
·
·
·
·
·
·
·
·
·
·
·
·
Universal specification  
Operating voltag0e: 2.0V~5.5V  
Low standby current  
·
·
·
·
·
·
Hold-line control  
Pause, P®T can be saved for redialing  
On-hook store function  
Keytone function  
Lowmemoryretentioncurrent:0.1mA(typ.)  
Tone/pulse switchable  
Lock function  
Resistor options  
Interface with LCD driver  
32 digits for redialing  
-
M/B ratio  
Flash function and flash time  
-
32 digits for the SA memory dialing  
One-key redialing  
-
Pause and P®T duration  
Pulse number  
-
Pause and P®T key for PBX  
3.58MHz crystal or ceramic resonator  
Hand-free control  
-
Inter-digit pause time for 10pps  
Memory number: 22 memories  
·
General Description  
The HT9320 series tone/pulse dialers are  
CMOS LSI for telecommunication systems.  
They are designed to meet various dialing spec-  
ifications through resistor option matrix.  
LCD interface function and IDD lock function.  
The six versions also supply the hold-line and  
hand-free functions, which are suitable for feature  
phone applications.  
The HT9320 series are offered in six different  
versions. The different functions of the six ver-  
sions are listed in the selection table. The  
HT9320A, HT9320H versions provide the  
on-hook store function; the HT9320B version  
provides the LCD interface function; the  
HT9320K version provides the keytone func-  
tion; the HT9320L version provides both the  
HT9320 series provide SA, Redial and 20  
one-touch/two-touch memory dialing. If the  
keyboard includes M1~M20 keys it can be used  
as one-touch memory dialing. Otherwise, it  
works as two-touch (PAGE®M1~M10) or  
three-touch(A®PAGE®0~9) memory dialing  
for speed dialing in either pulse or tone mode.  
1
July 21, 1999  
HT9320  
Selection Table  
Function  
Tone Inter-  
Pulse Dura- Tone-  
Flash  
Time  
(ms)  
Key-  
On-  
Memory Hold- Hand-  
Dialing Line Free Interface Function  
LCD  
Flash  
M/B  
Pin  
IDD  
Lock  
Tone Hook Package  
Output Store  
No.  
tion  
(ms)  
Pause  
(ms)  
Part No.  
Control  
600  
600/300/98  
600  
N,  
N+1  
10-N  
SA, R  
M1~M20  
HT9320A  
Ö
Ö
Ö
Ö
¾
Ö
82.5  
82.5  
85.5  
85.5  
Ö
¾
¾
¾
¾
Ö
28 DIP  
28 DIP  
Digit  
Control  
Digit  
N,  
N+1  
10-N  
SA, R  
M1~M20  
HT9320B  
¾
¾
600/300/98  
600  
Control  
Digit  
N,  
N+1  
10-N  
SA, R  
M1~M20  
HT9320C  
HT9320H  
HT9320K  
¾
Ö
¾
Ö
¾
¾
¾
82.5  
82.5  
82.5  
85.5  
82.5  
85.5  
¾
Ö
¾
¾
¾
¾
¾
Ö
¾
Ö
22SKDIP  
28 DIP  
600/300/98  
SA, R  
M1~M20  
Digit  
600/100  
N
Control  
Digit  
600  
N,  
N+1  
10-N  
SA, R  
M1~M20  
Ö
Ö
¾
¾
28 DIP  
600/300/98  
600  
Control  
Digit  
N,  
N+1  
10-N  
SA, R  
M1~M20  
HT9320L  
Ö
Ö
Ö
82.5  
85.5  
¾
Ö
¾
¾
28 DIP  
600/300/98  
HT9320L-X  
The same as HT9320L, but the voltage polarity of the row group and the column group are reversed.  
Pin Assignment  
C
K
R
R
R
R
R
8
C
8
C
8
C
C
C
C
C
C
C
P
H
X
D
H
H
V
7
6
5
4
3
2
1
C
C
C
C
C
C
C
P
H
X
D
H
H
V
7
6
5
4
3
2
1
C
C
C
C
C
C
C
P
H
X
D
H
H
V
7
6
5
4
3
2
1
2
2
2
2
2
2
2
2
2
1
1
1
1
1
8
7
6
5
4
3
2
1
0
9
8
7
6
5
2
2
2
2
2
2
2
2
2
1
1
1
1
1
8
7
6
5
4
3
2
1
0
9
8
7
6
5
2
2
2
2
2
2
2
2
2
1
1
1
1
1
8
7
6
5
4
3
2
1
0
9
8
7
6
5
1
2
3
4
5
6
7
8
9
1
1
1
1
1
1
2
3
4
5
6
7
8
9
1
1
1
1
1
1
2
3
4
5
6
7
8
9
1
1
1
1
1
T
D
O
U
T
H
S
T
1
2
3
4
5
R
R
R
R
R
1
2
3
4
5
R
R
R
R
R
1
2
3
4
5
C
C
C
C
C
C
C
P
X
D
V
7
6
5
4
3
2
1
C
R
R
R
R
R
8
1
2
3
4
5
1
2
3
4
5
6
7
8
9
1
1
2
2
2
1
1
1
1
1
1
1
1
2
1
0
9
8
7
6
5
4
3
2
H
K
S
H
K
S
H
K
S
O
M
O
M
O
M
N
C
C
L
O
C
K
M
/
B
F
O
M
F
O
M
F
O
M
H
F
I
H
F
I
H
F
I
U
T
E
U
T
E
U
T
E
H
K
S
0
1
2
3
4
0
1
2
3
4
0
1
2
3
4
M
O
D
E
M
O
D
E
M
O
D
E
T
D
D
F
T
D
D
F
O
M
T
D
D
F
M
O
D
E
X
X
1
2
X
X
1
2
X
X
1
2
I
O
I
O
U
T
E
I
O
X
X
1
2
0
1
T
M
S
F
V
D
D
V
D
D
V
D
D
S
S
S
S
S
S
S
V
D
D
H
T
9
3
2
0
A
/
H
H
T
9
3
2
0
B
/
L
/
L
-
H
X
T
9
3
2
0
C
H
T
9
3
2
0
K
2
8
D
I
P
2
8
D
I
P
2
2
S
K
D
I
P
2
8
D
I
P
2
July 21, 1999  
HT9320  
Block Diagram  
H
S
T
D
C
O
L
U
T
C
o
n
t
r
o
l
C
h
e
c
k
F
S
M
C
C
1
8
O
C
K
K
e
y
W
R
M
T
o
n
e
T
o
n
e
C
o
l
u
m
n
K
e
y
S
R
A
M
D
T
M
F
C
o
u
n
t
e
r
E
n
c
o
d
e
r
O
u
t
F
u
n
c
t
i
o
n
E
n
c
o
d
e
r
P
O
P
u
l
s
e
C
o
n
v
e
r
t
e
r
A
D
D
R
L
O
u
t
X
M
U
T
E
R
1
E
n
c
o
d
e
r
K
e
y
R
o
w
H
K
S
H
F
I
H
D
/
H
F
F
e
l
a
s
h
M
o
d
e
I
n
R
5
K
e
y
t
o
n
D
e
b
o
u
n
c
e
C
i
r
c
u
i
t
H
D
I
H
H
D
F
O
X
X
1
2
O
C
l
o
c
k
D
i
v
i
d
e
r
M
/
B
T
i
m
e
r
G
e
n
e
r
a
t
o
r
M
O
D
E
M
/
B
K
T
3
July 21, 1999  
HT9320  
Keyboard Information  
HT9320A/B/C/K/L  
HT9320H  
·
·
·
O
T
T
n
e
-
t
d
o
u
c
h
m
e
m
o
r
y
k
e
y
b
o
a
r
d
·
·
·
O
T
T
n
e
-
t
o
u
c
h
m
e
m
o
r
y
k
e
y
b
o
a
r
C
1
C
2
C
3
C
4
C
6
C
5
C
7
C
8
C
1
C
2
C
3
C
4
C
6
C
5
C
7
C
8
R
R
R
R
R
1
2
3
4
5
S
A
P
T
M
M
M
M
M
1
2
3
4
5
M
M
M
M
6
7
8
9
M
M
M
M
M
1
1
1
1
1
1
2
3
4
5
M
M
M
M
M
1
1
1
1
2
6
7
8
9
0
®
R
R
R
R
R
1
2
3
4
5
S
A
P
M
M
M
M
M
1
2
3
4
5
M
M
M
M
6
7
8
9
M
M
M
M
M
1
1
1
1
1
1
2
3
4
5
M
M
M
M
M
1
1
1
1
2
6
7
8
9
0
1
4
7
2
5
8
0
3
6
9
#
F
3
6
9
#
F
1
4
7
2
5
8
0
S
T
S
T
*
R
/
P
M
1
0
R
*
/
T
M
1
0
w
o
-
t
d
o
u
c
h
m
e
m
o
r
y
k
e
y
b
o
a
r
d
w
o
-
t
o
u
c
h
m
e
m
o
r
y
k
e
y
b
o
a
r
C
1
C
2
C
3
C
4
C
5
C
6
C
1
C
2
C
3
C
4
C
5
C
6
M
M
M
M
M
1
2
3
4
5
/
/
/
/
/
M
M
M
M
6
7
8
9
/
/
/
/
M
M
M
M
6
7
8
9
/
/
/
/
M
M
M
M
M
1
2
3
4
5
/
/
/
/
/
R
R
R
R
R
1
2
3
4
5
S
A
P
A
®
G P E T  
R
R
R
R
R
1
2
3
4
5
2
5
8
0
S
A
P
P
A
G
E
M
M
M
M
M
1
1
1
1
1
1
2
3
4
5
M
M
M
M
M
1
1
1
1
2
6
7
8
9
0
M
M
M
M
M
1
1
1
1
1
1
2
3
4
5
M
M
M
M
M
1
1
1
1
2
6
7
8
9
0
1
4
7
3
6
9
#
F
1
4
7
2
5
8
0
3
6
9
#
F
A
S
T
S
T
M
1
0
/
M
1
0
/
*
R
/
P
*
/
T
R
h
r
e
e
-
t
d
o
u
c
h
m
e
m
o
r
y
k
e
y
b
o
a
r
d
h
r
e
e
-
t
o
u
c
h
m
e
m
o
r
y
k
e
y
b
o
a
r
C
1
C
2
C
3
C
4
C
1
C
2
C
3
C
4
R
R
R
R
R
1
2
3
4
5
S
A
P
A
G
E
®
T
R
R
R
R
R
1
2
3
4
5
2
5
8
0
P
S
A
P
P
A
G
E
1
4
7
3
6
9
#
F
1
4
7
2
5
8
0
3
6
9
#
F
A
A
S
T
S
T
*
R
/
P
*
/
T
R
Memory dialing vs. keyboard form table  
Dialing  
Output  
One-Touch  
Memory Keyboard  
Two-Touch  
Memory Keyboard  
Three-Touch  
Memory Keyboard  
M1~M10  
M1 ~ M10  
A
a
(a=1~9, 0)  
M11~M20  
M11 ~ M20  
PAGE Ma (Ma=M1~M10)  
A PAGE a (a=1~9, 0)  
4
July 21, 1999  
HT9320  
Pin Description  
Internal  
Connection  
Pin Name I/O  
Description  
These pins form a 5´8 keyboard matrix which can perform  
keyboard input detection and dialing specification setting  
functions. When on-hook (HKS=high) all the pins are set high.  
While off-hook the column group (C1~C8) remains low and the  
row group (R1~R5) is set high for key input detection.  
For the HT9320L-X, the column group remains high and the  
row group is set low for key input detection.  
C1~C8  
I/O  
CMOS  
IN/OUT  
An inexpensive single contact 5´8 keyboard can be used as an  
input device. Pressing a key connects a single column to a sin-  
gle row, and actuates the system oscillator that results in a di-  
aling signal output. If more than two keys are pressed at the  
same time, no response occurs. The key-in debounce time is  
20ms. Refer to the keyboard information for keyboard ar-  
rangement and to the functional description for dialing speci-  
fication selection.  
R1~R5  
The system oscillator consists of an inverter, a bias resistor  
and the necessary load capacitor on chip. Connecting a stan-  
dard 3.579545MHz crystal or ceramic resonator to the X1 and  
X2 terminals can implement the oscillator function. The oscil-  
lator is turned off in the standby mode, and is actuated when-  
ever a keyboard entry is detected.  
X1  
X2  
I
OSCILLATOR  
NMOS OUT  
O
XMUTE is an NMOS open drain structure pulled to VSS dur-  
ing dialing signal transmission. Otherwise, it is an open cir-  
cuit. XMUTE is used to mute the speech circuit when  
transmitting the dial signal.  
XMUTE  
O
This pin is used to monitor the status of the hook-switch and its  
combination with HFI/HDI can control the PO pin output to  
makeorbreaktheline.  
HKS=VDD:On-hookstate(PO=low).ExceptforHFI/HDI  
(hand-free/hold-lineco ntrolinput),other  
functionsarealldisabled.  
HKS  
I
CMOS IN  
HKS=VSS:Off-hookstate(PO=high).The chipisinthestand-  
bymodeandreadytoreceivethekeyinput.  
This pin is a CMOS output structure which by receiving the  
HKS and HFO/HDO signals, control the dialer to connect or  
disconnect the telephone line.  
PO outputs a low to break line when HKS is high (on-hook)  
PO  
O
CMOS OUT and HFO/HDO is low. PO outputs a high to make line when  
HKS is low (off-hook) or HFO is high or HDO is high.  
During the off-hook state, this pin also outputs the dialing  
pulse train in pulse mode dialing. While in the tone mode, this  
pin is always high.  
5
July 21, 1999  
HT9320  
Internal  
Connection  
Pin Name I/O  
Description  
This is a three-state input/output pin, used for dialing mode  
selection, either Tone mode or Pulse mode, 10pps/20pps  
MODE=VDD: Pulse mode, 10pps  
MODE=OPEN: Pulse mode, 20pps  
MODE=VSS: Tone mode  
CMOS  
IN/OUT  
MODE  
I/O  
During the pulse mode dialing, switching this pin to the tone  
mode changes the subsequent digit entry to the tone mode.  
When the chips are in tone mode, switching to the pulse mode  
will also be recognized.  
This pin is active only when the chip transmits tone dialing  
signals. Otherwise, it always outputs a low. The pin outputs  
tone signals to drive the external transmitter amplifier cir-  
cuit. The load resistor should not be less than 5kW.  
DTMF  
HDI  
O
I
CMOS OUT  
This pin is a schmitt trigger input structure. Active low. Ap-  
plying a negative going pulse to this pin can toggle the HDO out-  
put once.  
CMOS IN  
Pull-high  
An external RC network is recommended for input  
debouncing. The pull-high resistance is 200kW typ.  
The HDO is a CMOS output structure. Its output is toggle- con-  
trolled by a negative transition on HDI. When HDO is toggled  
high, PO keeps high to hold the line. The hold function can be re-  
leased by setting HFO high or by an on-off hook operation or by  
another HDI input. The HDO pin can directly drive the HT3810  
series melody generator to produce a hold-line background mel-  
ody. Refer to the functional description for the hold-line func-  
tion.  
HDO  
O
CMOS OUT  
This pin is a schmitt trigger input structure. Active high. Ap-  
plying a positive going pulse to HFI can toggle the HFO once  
and hence control the hand-free function.  
CMOS IN  
Pull-low  
HFI  
I
An external RC network is recommended for input  
debouncing. The pull-low resistance of HFI is 200kW typ.  
The HFO is a CMOS output structure. Its output is toggle-  
controlled by a positive transition on the HFI pin. When HFO  
is high, the hand-free function is enabled and PO outputs a  
high to connect the line.  
HFO  
O
O
CMOS OUT  
NMOS OUT  
The hand-free function can be released by an on-off-hook oper-  
ation or by another HFI input or by setting HDO high. Refer to  
the functional description for the hand-free function opera-  
tion.  
NMOS open drain output pin. It outputs the BCD code of the  
dialing digits to the LCD driver chip (HT16XX series) or mC for  
dialing number display. Refer to the functional description for  
the detailed timing.  
DOUT  
6
July 21, 1999  
HT9320  
Internal  
Connection  
Pin Name I/O  
Description  
NMOS open drain output. When dialing, it outputs a series of  
CLOCK  
O
NMOS OUT pulse trains for DOUT data synchronization. DOUT data is  
valid at the falling edge of clock.  
VDD  
VSS  
I
I
Positive power supply, 2.0V~5.5V for normal operation  
Negative power supply  
¾
¾
CMOS IN  
Pull-low  
(HT9320A)  
On-hook store enable input  
HST=VDD: On-hook store (HT9320A/H)  
HST=Floating: Off-hook store (HT9320A)  
HST=VSS: Off-hook store (HT9320H)  
The Pull-low resistance is 200kW typ.  
HST  
I
CMOS IN  
(HT9320H)  
CMOS IN  
Pull-high  
(HT9320A)  
Make/Break ratio selection  
M/B=VSS: 33.3/66.6 (HT9320A)  
M/B=Floating: 40/60 (HT9320A)  
M/B=VDD: 33.3/66.6 (HT9320H)  
M/B=VSS: 40/60 (HT9320H)  
M/B  
KT  
I
CMOS IN  
(HT9320H)  
The pull-high resistance is 200kW typ.  
Keytone output pin. Outputs a 1.2kHz tone carrier for 34ms  
each time a key is pressed in the pulse mode.  
O
CMOS OUT  
Approximate internal connection circuits  
C
T
M
O
S
I
N
C
M
O
S
I
N
/
O
N
U
M
T
O
S
O
U
T
C
M
O
S
I
N
C
M
O
S
O
U
P
u
l
l
-
h
i
g
h
V
D
D
V
D
D
O
S
C
I
L
L
A
T
O
R
C
M
O
S
I
N
P
u
l
l
-
l
o
w
X
1
X
2
1
0
M
1
0
p
F
2
0
p
F
E
N
7
July 21, 1999  
HT9320  
Absolute Maximum Ratings  
Supply Voltage ................................-0.3V to 6V  
Input Voltage .................. VSS-0.3 to VDD+0.3V  
Storage Temperature ................-50°C to 125°C  
Operating Temperature .............-20°C to 75°C  
Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maxi-  
mum Ratings² may cause substantial damage to the device. Functional operation of this device  
at other conditions beyond those listed in the specification is not implied and prolonged expo-  
sure to extreme conditions may affect device reliability.  
Electrical Characteristics  
fOSC=3.5795MHz, Ta=25°C  
Test Conditions  
Conditions  
¾
Symbol  
Parameter  
Min. Typ. Max. Unit  
VDD  
VDD  
Operating Voltage  
2
5.5  
1
V
¾
¾
Off-hook  
Keypad entry  
No load  
Pulse  
0.2  
mA  
¾
IDD  
Operating Current  
2.5V  
Tone  
0.6  
2
1
mA  
¾
¾
On-hook, no load  
No entry  
ISTB  
Standby Current  
1V  
¾
mA  
VR  
IR  
Memory Retention Voltage  
1
¾
5.5  
0.2  
V
mA  
V
¾
¾
¾
0.1  
¾
Memory Retention Current 1V On-hook  
VIL  
VIH  
VSS  
0.2VDD  
VDD  
Input Low Voltage  
Input High Voltage  
¾
¾
¾
¾
0.8VDD  
V
¾
VXMUTE=12V  
No entry  
IXMO  
XMUTE Leakage Current  
1
¾
¾
¾
mA  
IOLXM  
IHKS  
RHFI  
RHDI  
RM/B  
RHST  
IOH1  
IOL1  
V
V
V
V
V
V
V
V
V
V
V
V
V
V
XMUTE=0.5V  
HKS=2.5V  
HFI=2.5V  
HDI=0V  
XMUTE Sink Current  
HKS Pin Input Current  
HFI Pull-low Resistance  
2.5V  
2.5V  
2.5V  
1
¾
¾
¾
¾
¾
-4  
200  
-1  
1
mA  
mA  
¾
¾
¾
0.1  
¾
¾
¾
¾
-40  
¾
¾
¾
¾
¾
¾
¾
200  
200  
200  
200  
¾
kW  
kW  
kW  
kW  
mA  
HDI Pull-high Resistance 2.5V  
M/B Pull-high Resistance 2.5V  
M/B=0V  
HST=2.5V  
OH=0V  
HST Pull-low Resistance  
2.5V  
Keypad Pin Source Current 2.5V  
Keypad Pin Sink Current 2.5V  
OL=2.5V  
OH=2V  
400  
¾
mA  
IOH2  
IOL2  
IOH3  
IOL3  
IOH4  
IOL4  
mA  
mA  
mA  
mA  
mA  
mA  
HFO Pin Source Current  
HFO Pin Sink Current  
HDO Pin Source Current  
HDO Pin Sink Current  
KT Pin Source Current  
KT Pin Sink Current  
2.5V  
2.5V  
2.5V  
2.5V  
2.5V  
2.5V  
OL=0.5V  
OH=2V  
¾
-1  
1
¾
OL=0.5V  
OH=2V  
¾
-1  
1
¾
OL=0.5V  
¾
8
July 21, 1999  
HT9320  
Test Conditions  
Conditions  
Control key  
Digit key  
Symbol  
TFP  
Parameter  
Min. Typ. Max. Unit  
VDD  
0.2  
1
s
s
¾
¾
¾
¾
Pause Time After Flash  
¾
Pause Time for One-key  
Redialing  
TRP  
One-key redialing  
¾
1
s
ms  
s
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
TDB  
Key-in Debounce Time  
20  
1.2  
Break Time for One-key  
Redialing  
TBRK  
One-key redialing  
fOSC  
System Frequency  
Crystal=3.5795MHz 3.5759 3.5795 3.5831 MHz  
Pulse Mode Electrical Characteristics  
fOSC=3.5795MHz, Ta=25°C  
Test Conditions  
Conditions  
Symbol  
IPOH  
Parameter  
Min.  
Typ.  
Max. Unit  
VDD  
PO Output Source  
Current  
VOH=2V  
2.5V  
mA  
mA  
-0.2  
¾
¾
¾
PO Output Sink  
Current  
IPOL  
VOL=0.5V  
2.5V  
0.2  
0.6  
MODE pin is connected to VDD  
MODE pin is opened  
10  
20  
¾
¾
¾
¾
PR  
Pulse Rate  
pps  
¾
A resistor is linked between  
R2 and C1 (HT9320B/C/K/L)  
33:66  
40:60  
¾
¾
¾
¾
M/B=VSS (HT9320A)  
M/B=VDD (HT9320H)  
M/B  
Make/Break Ratio  
%
¾
¾
No resistor is linked between  
R2 and C1 (HT9320B/C/K/L)  
M/B=Floating (HT9320A)  
M/B=VSS (HT9320H)  
40 (10pps)  
20 (20pps)  
M/B ratio=40:60  
M/B ratio=33:66  
¾
¾
¾
¾
Pre-digit-pause  
Time  
TPDP  
ms  
33 (10pps)  
17 (20pps)  
9
July 21, 1999  
HT9320  
Test Conditions  
Conditions  
Symbol  
Parameter  
Min.  
Typ.  
Max. Unit  
VDD  
Pulse rate=10pps. No resistor  
is linked between R1 and C5  
(HT9320A/B/C/K)  
800  
¾
¾
Pulse rate=10pps (HT9320H/L)  
Inter-digit-pause  
Time  
TIDP  
ms  
¾
Pulse rate=10pps. A resistor  
is linked between R1 and C5  
(HT9320A/B/C/K)  
400  
500  
¾
¾
¾
Pulse rate=20pps  
¾
A resistor is linked between  
R2 and C1 (HT9320B/C/K/L)  
33 (10pps)  
17 (20pps)  
¾
¾
¾
¾
¾
M/B=VSS (HT9320A)  
M/B=VDD (HT9320H)  
Pulse Make  
Duration  
TM  
ms  
¾
No resistor is linked between  
R2 and C1 (HT9320B/C/K/L)  
40 (10pps)  
20 (20pps)  
¾
M/B=Floating (HT9320A)  
M/B=VSS (HT9320H)  
A resistor is linked between  
R2 and C1 (HT9320B/C/K/L)  
66 (10pps)  
33 (20pps)  
¾
M/B=VSS (HT9320A)  
M/B=VDD (HT9320H)  
pulse Break  
Duration  
TB  
ms  
¾
No resistor is linked between  
R2 and C1 (HT9320B/C/K/L)  
60 (10pps)  
30 (20pps)  
¾
M/B=Floating (HT9320A)  
M/B=VSS (HT9320H)  
Pulse mode (HT9320K)  
Pulse mode (HT9320K)  
TKT  
Keytone Duration  
Keytone Carrier  
34  
ms  
¾
¾
¾
¾
¾
¾
FKTC  
1.2  
kHz  
Tone Mode Electrical Characteristics  
fOSC=3.5795MHz, Ta=25°C  
Min. Typ. Max. Unit  
Test Conditions  
Conditions  
¾
Symbol  
Parameter  
VDD  
¾
VTDC  
ITOL  
VTAC  
RL  
0.45VDD  
0.7VDD  
DTMF Output DC Level  
DTMF Sink Current  
DTMF Output AC Level  
DTMF Output Load  
V
¾
¾
V
DTMF=0.5V  
2.5V  
¾
0.1  
0.12  
5
mA  
¾
0.155 0.18 Vrms  
Row group, RL=5kW  
THD£-23dB  
2.5V  
¾
¾
kW  
ACR  
Column Pre-emphasis  
2.5V Row group=0dB  
1
2
3
dB  
10  
July 21, 1999  
HT9320  
Test Conditions  
Conditions  
RL=5kW  
Symbol  
Parameter  
Min.  
Typ. Max. Unit  
VDD  
2.5V  
¾
THD  
Tone Signal Distortion  
Minimum Tone Duration  
Minimum Inter-tone Pause  
dB  
ms  
ms  
¾
¾
¾
-30  
82.5  
85.5  
-23  
¾
TTMIN  
TITPM  
Auto-redial  
Auto-redial  
¾
¾
THD (Distortion) (dB) = 20 log ( V12 + V22 +K Vn2  
/
Vi2 + Vh2  
)
Vi, Vh: Row group and column group signals  
V1, V2, ... Vn: Harmonic signals (BW=300Hz~3500Hz)  
Functional Description  
C
1
C
2
C
3
C
4
C
5
C
6
C
7
Keyboard matrix  
R
1
2
3
4
C1~C8 and R1~R5 form a keyboard matrix. To-  
gether with a standard 5´8 keyboard, the key-  
board matrix is used for dialing entries. In  
R
1
R
R
1 K  
R
R
R
1 K  
K
5
1
K
6
7
1
K
2
1
K
3
4
R
R
R
K
K
1
1
2
4
R
addition, the keyboard matrix also provides resis-  
tor options for different dialing specification se-  
R
K
1
3
R
lections. The keyboard arrangement for the  
HT9320 series are shown in the Keyboard In-  
All the resistors are 330kW. The resistor option  
functions and the default specifications (with-  
outoptionresistors)arelistedbelow(HT9320A/  
B/C/K/L).  
formation.  
Tone frequency  
Tone  
Output  
Frequency (Hz)  
Option  
Resistor  
Option  
Function  
Default  
(No Resistor)  
% Error  
Name  
Specified Actual  
RK12  
(HT9320B/ Ratio Selection  
C/K/L)  
R2  
R3  
R4  
R5  
C1  
C2  
C3  
697  
770  
699  
766  
+0.29%  
-0.52%  
-0.59%  
+0.74%  
+0.50%  
-0.30%  
-0.34%  
40:60  
852  
847  
RK13  
Flash= control  
function  
941  
948  
Flash Function  
1209  
1336  
1477  
1215  
1332  
1472  
/Time Selection Flash time=  
600ms  
RK14  
Pause & P®T  
Duration  
Selection  
TP= 3.6s  
RK21  
T
P®T= 3.6s  
Note: %Errordoesnotcontainthecrystalfrequency  
drift  
RK31  
RK41  
RK51  
Pulse Number  
Selection  
N
Dialing specification selection  
Various dialing specifications can be selected by  
adding resistors across keyboard matrix pins.  
The allowable option resistor connections are  
shown on the table.  
Inter-digit-  
(HT9320A Pause Time for  
/B/C/K) 10pps  
800ms  
11  
July 21, 1999  
HT9320  
Pause and P®T duration selection table  
Option  
Resistor  
Option  
Function  
Default  
(No Resistor)  
·
HT9320A/B/C/K/L  
RK51  
RK61  
RK21  
No  
TP (sec)  
TP®T (sec)  
International  
Direct Dialing  
Lock Selection  
Normal dialing  
(unlock)  
3.6  
2
3.6  
1
RK71  
(HT9320L)  
Yes  
M/B ratio selection table  
·
HT9320H  
TP (sec)  
3.6  
·
·
·
HT9320A  
M/B Pin  
TP®T (sec)  
3.6  
M/B Ratio (%)  
33.3:66.6  
40:60  
VSS  
Pulse number selection table  
Floating  
·
HT9320A/B/C/K/L  
HT9320B/C/K/L  
Pulse  
Number  
RK31  
RK41  
RK12  
No  
M/B Ratio (%)  
40:60  
No  
No  
No  
Yes  
No  
N
Yes  
33.3:66.6  
N+1  
10-N  
¾
Yes  
Yes  
HT9320H  
M/B Pin  
VDD  
Yes  
M/B Ratio (%)  
33.3:66.6  
40:60  
·
HT9320H  
VSS  
Pulse Number  
N
Flash function/time (duration) selection table  
·
HT9320A/B/C/K/L  
Inter-digit-pause time for 10pps  
Flash Flash  
Function Time (TF)  
RK13  
RK14  
·
HT9320A/B/C/K  
RK51  
No  
Inter-digit pause time  
No  
No  
No  
Yes  
No  
Control  
Digit  
600ms  
600ms  
98ms  
800ms  
400ms  
Yes  
Yes  
Digit  
Yes  
Yes  
Digit  
300ms  
·
HT9320H/L  
·
HT9320H  
Inter-digit pause time  
Flash  
Function  
Flash Time  
(TF)  
800ms  
M/B Pin  
VSS  
Digit  
Digit  
600ms  
100ms  
VDD  
12  
July 21, 1999  
HT9320  
Pulse number table  
On/Off hook store selection table  
HST Pin  
Hook Store Mode  
On-hook store  
Off-hook store  
Off-hook store  
Keypad  
Output Pulse Number  
VDD (HT9320A/H)  
Floating (HT9320A)  
VSS (HT9320H)  
Digit Key  
N
10-N  
N+1  
1
2
1
2
9
8
2
3
3
3
7
4
Lock function (HT932L)  
4
4
6
5
This function aims to detect lock dialing num-  
bers to prevent from an unauthorized long dis-  
tance call. The dialing output of this chip is  
disabled if the first input key after on-off hook is  
the lock number when the lock function is en-  
abled.  
5
5
5
6
6
6
4
7
7
7
3
8
9
8
8
2
9
9
1
10  
International direct dialing lock (IDD lock) se-  
lection table  
0
10  
P®T  
10  
P®T  
1
*/T  
#
P®T  
Ignored  
RK51 RK61 RK71  
Lock Function  
Ignored Ignored  
Normal dialing without  
lock function  
No  
No  
No  
No  
DOUT BCD code  
No Yes To lock 0  
When dialing, the corresponding 4-bit BCD  
codes are serially presented on DOUT from  
MSB to LSB. The data of DOUT is valid at the  
falling edge of the CLOCK pin. The following  
table lists the BCD codes corresponding to the  
keyboard input.  
No Yes  
To lock 0, 9  
¾
IDD lock operation by the  
telephone keyboard.  
(See keyboard operation)  
Yes  
¾
¾
Note: ²¾² stands for ²don¢t care²  
Key-In BCD Code Key-In BCD Code  
Hand-free function operation  
1
2
3
4
5
6
7
0001  
0010  
0011  
0100  
0101  
0110  
0111  
8
9
1000  
1001  
1010  
1101  
1100  
1011  
1110  
·
Hand-free function execution  
When HFO is low, a rising edge triggers the  
HFI, enabling the Hand-free function (HFO  
becomes high).  
0
*/T  
#
·
Reset Hand-free function  
F
When HFO is high, the Hand-free function is  
enabled and can be reset by:  
P
¨
¨
¨
Off-hook  
On hook store (HT9320A/H)  
Applying a rising edge to HFI  
Changing the HDO pin from low to high  
When the external power supply (2V~5.5V) is  
used and the HST pin is connected to VDD, the  
user can store dialing numbers to the memories  
(M1~M20) during on-hook state.  
13  
July 21, 1999  
HT9320  
·
·
Hold-line function table  
Hand-free function table  
I
n
p
u
e
t
N
e
x
t
S
t
a
t
e
C
u
r
r
e
e
n
t
S
t
a
t
I
n
p
u
e
t
N
e
x
t
S
t
a
t
C
u
r
r
e
n
t
S
t
a
t
H
K
H
S
D
O
H
F
O
H
F
I
H
D
I
H
K
S
H
D
O
H
F
O
H
K
H
S
F
H
O
D
O
H
D
I
H
F
I
H
K
S
H
F
O
H
D
O
H
H
H
H
L
L
X
X
L
L
L
L
L
L
L
L
H
A
A
A
n
n
n
L
A
A
A
n
n
n
H
H
H
H
L
L
X
X
X
H
H
H
H
H
H
H
H
L
A
A
A
n
n
n
L
A
A
A
n
n
n
H
H
L
L
L
H
L
L
L
H
H
L
L
L
L
H
L
L
L
X
X
X
X
H
H
L
X
L
L
L
L
L
L
L
L
L
L
A
A
A
n
n
n
L
L
L
L
L
L
X
X
A
A
A
n
n
n
H
L
L
L
L
A
A
n
n
H
L
L
L
L
A
A
n
n
X
X
X
H
H
H
A
n
X
X
X
L
L
H
A
n
X
A
n
H
X
A
n
H
H
L
L
:
e
o
o
g
g
i
i
c
c
X
H
D
U
:
I
o
G
n
H
'
t
c
a
:
:
R
F
r
i
e
s
i
n
g
e
d
g
e
H
L
L
:
:
o
o
g
g
i
i
c
c
X
H
D
U
:
I
o
G
n
H
'
t
c
a
:
:
R
F
r
i
e
s
i
n
g
e
d
g
L
:
A
L
n
O
:
W
n
c
h
a
n
g
e
d
a
l
l
i
n
g
e
d
g
e
L
A
L
n
O
:
W
n
c
h
a
n
g
e
d
a
l
l
i
n
g
e
d
g
e
Key definition  
Hold-line function operation  
·
0,1,2,3,4,5,6,7,8,9 keys  
·
Hold-line function execution  
These are dialing number input keys for both  
the pulse mode and the tone mode operations.  
When HDO is low, a falling edge triggers the  
HDI, enabling the Hold-line function (HDO  
becomes high). The XMUTE remains low  
when HDO is high.  
·
*/T  
This key executes the P®T function and wait  
a TP®T duration in the pulse mode. On the  
other hand, the */T key executes the * func-  
tion in the tone mode.  
·
Reset Hold-line function  
When HDO is high, the Hold-line function is  
enabled and can be reset by:  
¨
¨
¨
·
Off-hook  
* (HT9320H)  
Applying a falling edge to HDI  
Changing the HFO pin from low to high  
The * key executes the * tone output function  
in the tone mode. No response in the pulse  
mode.  
·
·
P®T  
The key executes the P®T function in the  
pulse mode. No response in the tone mode.  
#
This is a dialing signal key for the tone mode  
only, no response in the pulse mode.  
14  
July 21, 1999  
HT9320  
·
·
·
·
·
·
SA  
ST  
Pressing this key can save the preceding dial-  
ing telephone numbers. The saved number is  
redialed if it is pressed again. SAwill also redial  
the saved number if it is the first key pressed at  
the off-hook state. During the dialing signal  
transmission, the SA key is inhibited.  
Store key. The execution of this key actuates  
the store memory function with (or without)  
dialing output. During the dialing signal  
transmission, the ST key is inhibited.  
A
Auto key. When this key is pressed before  
pressing any one of the digital keys (0~9) it  
executes the two-touch/ three-touch memory  
dialing function.  
F
The flash key can be selected as a digit or as a  
control key by the option resistors RK13 & RK14.  
Pressing the flash key will force the PO pin to  
be ²low² for the TF duration and is then fol-  
lowed by TFP (sec). TF can also be selected by  
PAGE  
M11~M20 are represented by pressing the  
PAGE key an.d the digital keys (0~9) or  
M1~M10. That is to say, A PAGE digit key  
(0~9) or PAGE®M1~M10 executes M11~M20  
memorydialing.  
RK13, RK14.  
P
Pause key. The execution of this key can  
pause the output for the TP duration. TP can  
·
M1~M20  
be selected by RK21  
.
One-touch memory dialing for speed-dialing  
in either pulse or tone mode.  
·
·
R
Redial key. Executes redialing as well as  
one-key redial function.  
R/P  
Redial and pause function key. If it is pressed  
as the first key after off-hook, this key exe-  
cutes the redial function. Otherwise, it works  
as the pause key.  
15  
July 21, 1999  
HT9320  
Keyboard operation  
The following operations are described under an on-off-hook or on-hook condition with the hand-free active  
condition.  
·
N
o
r
m
a
l
d
i
a
l
i
n
g
-
P
u
l
s
e
m
o
d
e
-
T
o
n
e
m
o
d
e
(
(
a
b
)
w
i
t
h
o
u
t
*
/
T
(
(
a
b
)
w
i
t
h
o
u
t
*
/
T
K
D
R
S
e
y
b
o
:
a
r
d
D
1
i
n
p
u
D
t
2
.
.
.
K
D
D
e
n
y
b
o
:
a
r
d
D
1
i
n
p
u
D
t
2
.
.
.
D
n
i
M
a
l
i
n
g
o
u
t
p
u
t
:
D
1
D
i
M
2
a
l
.
i
.
n
.
g
D
o
n
u
t
p
u
t
:
D
1
D
2
.
.
.
D
n
:
D
1
D
2
.
.
.
D
n
R
:
D
1
D
2
.
.
.
D
n
A
M
:
U
n
c
h
a
n
g
e
d
S
A
M
:
U
n
c
h
a
n
g
e
d
)
w
i
t
h
*
/
T
)
w
i
t
h
*
/
T
K
D
e
y
b
o
a
r
d
i
n
p
u
t
:
D
1
K
e
y
b
D
o
2
a
r
d
.
.
i
.
n
p
D
u
t
n
:
*
D
/
1
T
D
D
2
n
+
1
.
.
.
.
.
.
D
n
D
m
D
m
i
M
a
l
i
n
g
o
u
t
p
P
®
u
T
t
:
D
n
D
+
1
1
.
D
D
R
S
.
2
i
.
a
l
D
i
.
m
n
.
g
D
n
o
u
t
T
p
u
t
:
D
1
D
2
.
.
.
D
n
*
D
n
P
u
l
s
e
T
o
n
e
M
:
D
1
D
2
.
.
.
D
n
*
D
n
+
1
.
.
.
D
m
R
S
:
D
1
D
2
.
.
.
D
n
*
/
T
D
n
+
1
.
.
.
D
m
A
M
:
U
n
c
h
a
n
g
e
d
A
M
:
U
n
c
h
a
n
g
e
d
N
o
t
e
:
T
h
e
m
a
x
i
m
u
m
c
a
p
a
c
i
t
y
o
f
t
h
e
R
M
m
e
m
o
r
y
i
s
3
2
d
i
g
i
t
t
r
a
n
s
m
i
t
t
e
d
b
u
t
t
h
e
r
e
d
i
a
l
f
u
n
c
t
i
o
n
i
s
i
n
h
i
b
i
t
e
d
.
·
R
e
d
i
a
l
-
P
u
l
s
e
m
o
d
e
-
T
o
n
e
m
o
d
e
(
a
)
w
i
t
®
h
T
o
u
t
*
/
T
,
P
(
(
a
)
w
i
t
®
h
T
o
u
t
*
/
T
,
P
R
K
D
R
S
M
c
o
n
t
e
n
t
:
D
1
D
2
.
.
R
.
M
D
c
n
o
n
t
e
n
t
:
D
1
D
2
.
.
.
D
n
e
y
b
o
a
r
d
i
n
p
u
t
:
R
K
e
y
b
o
a
r
d
i
n
p
u
t
:
R
i
M
a
l
i
n
g
o
u
t
p
u
t
:
D
1
D
R
S
D
i
M
2
a
l
.
i
.
n
.
g
D
o
n
u
t
p
u
t
:
D
1
D
2
.
.
.
D
n
:
U
n
c
h
a
n
g
e
d
:
U
n
c
h
a
n
g
e
d
A
M
:
U
n
c
h
a
n
g
e
d
A
A
M
M
:
:
U
n
n
c
h
h
a
a
n
n
g
g
e
e
d
d
(
b
)
w
i
t
h
*
/
T
b
)
w
i
t
h
*
/
T
R
M
i
c
o
o
n
a
t
r
e
n
t
:
D
1
D
2
.
.
.
D
n
*
/
T
D
n
+
1
.
.
.
D
m
.
R
K
D
R
S
M
i
c
o
o
n
a
t
r
e
n
t
:
D
1
D
2
.
.
D
n
*
/
T
D
n
+
1
K
D
e
y
b
d
i
n
p
u
t
:
[
R
e
y
o
b
r
R
/
d
P
i
]
n
p
u
t
:
[
R
o
r
R
/
P
]
a
l
i
n
g
o
u
t
p
P
®
u
T
t
:
D
n
+
D
1
1
.
.
D
.
2
a
D
l
.
m
i
.
n
.
g
D
o
n
u
t
T
p
u
t
:
D
1
D
2
.
.
.
D
n
*
D
n
P
u
l
s
e
T
o
n
e
M
:
U
n
c
h
a
n
g
e
d
R
S
M
:
U
n
c
h
a
n
g
e
d
U
c
A
M
:
U
n
c
h
a
n
g
e
d
N
o
t
e
:
I
f
t
h
e
e
e
d
d
i
s
a
l
3
i
n
2
g
d
n
i
g
u
i
m
t
b
s
e
,
r
r
e
e
d
x
i
c
a
l
i
n
g
i
s
i
n
h
i
b
i
t
e
d
a
n
d
P
O
=
V
D
16  
July 21, 1999  
HT9320  
·
O
n
e
-
k
e
y
r
e
d
i
a
l
-
P
u
l
s
e
m
o
d
e
-
T
o
n
e
m
o
d
e
(
a
)
w
i
t
h
o
u
t
*
/
T
(
a
)
w
i
t
h
o
u
t
*
/
T
K
D
e
y
b
o
a
r
d
i
n
.
p
.
.
u
t
:
D
n
D
1
K
D
R
e
D
y
2
b
o
a
r
d
i
n
.
p
.
.
u
t
:
D
n
D
1
R
D
2
i
a
l
i
n
g
o
u
t
p
B
u
R
K
t
R
:
T
P
D
1
D
i
2
a
l
.
i
.
n
.
g
D
o
n
u
t
T
p
B
u
R
K
t
R
:
T
P
D
D
1
1
D
D
2
2
.
.
.
D
n
T
.
.
.
D
n
P
u
l
s
e
D
1
D
2
.
.
.
D
n
R
S
M
:
D
1
D
2
.
.
.
D
n
P
u
l
s
e
A
M
:
U
n
c
h
a
n
g
e
d
R
S
M
:
D
1
D
2
.
.
.
D
n
A
M
:
U
n
c
h
a
n
g
e
d
(
b
)
w
i
t
h
*
/
T
(
b
)
w
i
t
h
*
/
T
K
D
e
y
b
o
a
r
d
i
n
p
u
t
:
D
1
K
D
e
y
D
b
2
o
a
r
.
d
.
.
i
n
p
D
u
n
t
:
*
/
T
D
1
D
D
n
2
+
1
.
.
.
.
.
.
D
n
D
m
R
D
m
R
i
a
l
i
n
g
o
u
t
p
T
u
t
:
D
1
D
2
.
.
.
D
n
*
D
n
+
®
P
T
i
a
l
i
n
g
o
u
t
p
u
t
:
D
n
D
+
1
1
.
.
D
.
2
D
.
m
.
.
D
n
P
u
l
s
e
T
o
n
e
T
B
R
K
R
T
P
D
1
D
2
.
.
.
D
n
*
D
n
+
1
T
D
B
R
K
R
T
P
D
1
D
P
T
2
.
.
.
D
n
T
.
.
.
D
D
m
P
u
l
s
e
R
S
M
:
D
1
2
.
.
.
D
n
*
D
n
+
1
.
.
.
D
m
n
+
1
.
.
.
D
m
A
M
:
U
n
c
h
a
n
g
e
d
T
o
n
e
R
S
M
:
D
1
D
2
.
.
.
D
n
*
/
T
D
n
+
1
.
.
.
D
m
A
M
:
U
n
c
h
a
n
g
e
d
N
o
t
e
:
I
f
t
h
e
e
e
d
d
i
s
a
l
3
i
n
2
g
d
n
i
g
u
i
m
t
b
s
e
,
r
r
e
e
d
x
i
c
a
l
i
n
g
i
s
i
n
h
i
b
i
t
e
d
a
n
d
P
O
=
V
D
·
P
a
u
s
e
K
e
y
b
o
:
a
r
d
D
i
1
n
p
u
D
t
2
.
.
.
D
n
[
P
o
r
R
/
P
]
D
n
+
1
.
.
.
D
m
D
R
S
i
M
a
l
i
n
g
o
u
t
p
P
u
t
:
D
n
+
D
1
1
.
.
D
.
2
D
.
m
.
.
D
n
T
:
D
1
D
2
.
.
.
D
n
P
D
n
+
1
.
.
.
D
m
A
M
:
U
n
c
h
a
n
g
e
d
·
S
A
c
o
p
y
-
P
u
l
s
e
m
o
d
e
-
T
o
n
e
m
o
d
e
(
(
a
b
)
w
i
t
h
o
u
t
*
/
T
(
(
a
b
)
w
i
t
h
o
u
t
*
/
T
K
e
y
b
o
a
r
d
.
i
.
n
.
p
u
t
D
:
n
D
1
S
A
K
D
R
S
e
D
y
2
b
o
a
r
d
.
i
.
n
.
p
u
t
D
:
n
D
1
S
A
D
2
D
R
S
i
M
a
l
i
n
g
o
u
t
p
u
t
:
D
1
D
i
2
a
l
.
i
.
n
.
g
D
o
n
u
t
p
u
t
:
D
1
D
2
.
.
.
D
n
:
D
1
D
2
.
.
.
D
n
M
:
D
1
D
2
.
.
.
D
n
A
M
:
D
1
D
2
.
.
.
D
n
A
M
:
D
1
D
2
.
.
.
D
n
)
w
i
t
h
*
/
T
)
w
i
t
h
*
/
T
K
e
y
b
o
a
r
d
i
n
p
u
t
:
D
1
K
e
y
D
b
2
o
a
r
.
d
.
.
i
n
p
D
u
n
t
:
*
/
D
T
1
D
D
n
2
+
1
.
.
.
.
.
.
D
n
D
m
S
A
D
m
S
A
D
R
S
i
a
l
i
n
g
o
u
t p  
T
u
t
:
D
1
D
2
.
.
.
D
n
*
D
D
i
M
a
l
i
n
g
o
u
t
p
P
®
u
T
t
:
D
n
D
+
1
1
.
D
.
2
.
.
D
.
m
.
D
n
P
u
l
s
e
T
o
n
e
M
:
D
1
D
2
.
.
.
D
n
*
D
n
+
1
.
.
.
D
m
R
S
:
D
1
D
2
.
.
.
D
n
*
/
T
D
n
+
1
.
.
.
D
m
A
M
:
D
1
D
2
.
.
.
D
n
*
D
n
+
1
.
.
.
D
m
A
M
:
D
1
D
2
.
.
.
D
n
*
/
T
D
n
+
1
.
.
.
D
m
N
o
t
e
:
T
h
e
m
a
x
i
m
u
m
c
a
p
a
c
i
t
y
o
f
t
h
e
R
M
m
e
m
o
r
y
i
s
3
2
d
i
g
i
t
s
.
a
w
r
e
e
n
t
e
r
e
d
,
t
h
e
S
A
d
V
E
f
u
n
c
t
i
o
n
w
i
l
l
n
o
t
b
e
e
x
e
c
u
t
e
d
,
a
n
d
i
l
l
n
o
t
b
e
c
h
a
n
g
e
.
17  
July 21, 1999  
HT9320  
·
S
A
d
i
a
l
i
n
g
-
P
u
l
s
e
m
o
u
d
e
-
T
o
n
e
m
o
d
e
(
a
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18  
July 21, 1999  
HT9320  
·
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