HT9320
Symbol
T
FP
T
RP
T
DB
T
BRK
f
OSC
Parameter
Pause Time After Flash
Pause Time for One-key
Redialing
Key-in Debounce Time
Break Time for One-key
Redialing
System Frequency
Test Conditions
V
DD
¾
¾
¾
¾
¾
Conditions
Control key
Digit key
One-key redialing
¾
One-key redialing
Crystal=3.5795MHz
Min.
¾
¾
¾
¾
¾
Typ.
0.2
1
1
20
1.2
Max. Unit
¾
¾
¾
¾
¾
s
s
s
ms
s
3.5759 3.5795 3.5831 MHz
f
OSC
=3.5795MHz, Ta=25°C
Min.
-0.2
0.2
¾
¾
Typ.
¾
0.6
10
20
Max. Unit
¾
¾
¾
¾
mA
mA
pps
Pulse Mode Electrical Characteristics
Symbol
I
POH
I
POL
PR
Parameter
Test Conditions
V
DD
Conditions
PO Output Source
2.5V V
OH
=2V
Current
PO Output Sink
Current
Pulse Rate
2.5V V
OL
=0.5V
¾
MODE pin is connected to V
DD
MODE pin is opened
A resistor is linked between
R2 and C1 (HT9320B/C/K/L)
M/B=VSS (HT9320A)
M/B=VDD (HT9320H)
No resistor is linked between
R2 and C1 (HT9320B/C/K/L)
M/B=Floating (HT9320A)
M/B=VSS (HT9320H)
M/B ratio=40:60
¾
M/B ratio=33:66
¾
33:66
¾
%
M/B
Make/Break Ratio
¾
¾
40:60
40 (10pps)
20 (20pps)
33 (10pps)
17 (20pps)
¾
T
PDP
Pre-digit-pause
Time
¾
¾
¾
ms
¾
9
July 21, 1999
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
