EM91710A/B
TONE/PULSE SWITCHABLE DIALER
ABSOLUTE MAXIMUM RATINGS
(Ambient Temperature is 25°C, All voltage referenced to V
SS
. )
Parameter
Power Supply Voltage
Input Voltage Range
Operating Temperature
Storage Temperate
Power Dissipation
Sym.
V
DD
V
IN
T
OPR
T
STO
P
D
Ratings
6.0
-0.3 ~ V
DD
+ 0.3
0 ~ 50
-55 ~125
500
Unit
V
V
˚C
˚C
mw
ELECTRICAL CHARACTERISTICS
(I) (Ambient Temperature is 25°C, All voltage referenced to V
SS
, V
DD
= 2.5V,
unless otherwise noted
.
)
(General purpose specification, fosc. = 3.579545 MHz)
Parameter
Operating Voltage
Sym.
V
DD
Conditions
Tone
Pulse
Memory retension
Tone
OFF-HOOK, Keypad entry
Pulse
ON-HOOK, No Keypad entry
ON-HOOK, V
DD
= 1.0V
Min.
2.5
2.0
1.0
-
-
-
-
V
SS
0.7V
DD
Typ.
-
-
-
0.6
0.2
0.1
0.1
-
-
-
0.5
-
10
400
20
200
-
-
Max.
5.5
5.5
5.5
2
0.5
1
0.2
0.3V
DD
V
DD
1
-
0.1
30
800
-
-
-
-
Unit
V
mA
mA
µA
µA
V
V
µA
mA
µA
µA
µA
ms
KΩ
mA
mA
Operating Current
Standby Current
Memory retention current
Control pin input voltage
XMUTE pin
leakage current
sink current
HKS pin input current
Keyboard scanning pin
drive current
sink current
Key-in debounce time
HFI pin input resistor
HFO pin
drive current
sink current
Iop
Is
Imr
Vil
Vih
Imth
Imtl
Ihks
Ikbd
Ikbs
t
DB
Rhfi
Vxmute = 6.0V
Vxmute = 0.5V
Vhks = 2.5V
*Vn = 0V,
*Vn = 2.5V,
Vhfi=0
-
0.2
-
4
200
-
-
0.5
0.5
Ihdoh Vhfo = 2.0V
Ihdol Vhfo = 0.5V
* Vn : Input voltage of any keyboard scanning pin (Row group, Column group).
* This specification are subject to be changed without notice.
9.30.1997
8
EMC [ ELAN MICROELECTRONICS CORP ]
