EM91203 SERIES
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
ABSOLUTE MAXIMUM RATINGS(Ambient temperature is 25 °C, all voltages referenced to VSS)
Items
Sym.
Rating
Unit
Power supply voltage
Input voltage range
Operating temperature
Storage temperature
Power consumption
VDD
VIN
6.0 Vdc
VSS-0.3V ~ VDD+0.3V
0 ~ +50
V
V
TOPR
TSTO
PD
°C
°C
mW
-55 ~ 125
500
ELECTRICAL CHARACTERISTICS
(Ambient temperature is 25 °C, VDD=2.5V unless otherwise noted, all voltages referenced to VSS, Fosc=3.579545 MHz)
Parameter
Sym. Min. Typ.
Max. Unit
Condition
unload
Operating voltage
Pulse
Tone
Pulse
Tone
Pulse
Tone
2.0
2.0
-
-
5.5
5.5
0.3
0.5
0.3
0.5
0.1
V
Operating current(HKS=0)
Idd
-
-
-
-
-
0.15
0.3
0.15
0.3
unload
mA
with pull up/down
resistor * 8
Memory retention current
Standby current
Imrt
0.001
uA HKS=1,Vdd=1V
HKS=1 Istby
HKS=0
-
-
0.001
0.1
10
unload
1
-0.001
10
uA
HKS=1
HKS=0
0.1
30
Vdd
with pull up/down
-
resistor * 8
V
HKS, HFI
ViH
0.8Vdd
-
pins: input voltage
HFO & PM pins source current
PO, HFO, XMUTE,
ViL
IoH
IoL
Vss
0.2
-0.2
-
-
-
0.2Vdd
-
-
mA Vo = 2.0 V
mA Vo = 0.5 V
& PM, SDO pins: sink current
PO, XMUTE and SDO
pins: leakage current
HFI pin input resistance
Keyboard scanning pins
output current (except COL4/KT)
COL4/KT source current
sink current
IoH
-
-
±0.001 uA Vo = Vdd
Rhfi
IoH
IoL
IoH
IoL
-
200
10
400
-
-
50
800
-
KΩ Vhfi = Vss
uA Vksn=Vss
Vksn=Vdd
2
200
0.2
0.2
mA Vo=2.0V
Vo=0.5V
-
-
* This specification are subject to be changed without notice.
10.1.1997
8
ELAN [ ELAN MICROELECTRONICS CORP ]
