Silan
Semiconductorsꢀ
SC9302 Series
ꢀ
ELECTRICAL CHARACTERISTICS
(Tamb=25°C, fosc=3.5795MHz,unless otherwise specified)
Test Conditions
Parameter
Operating Voltage
Symbol
Min
Typ
Max
Unit
V
Condition
--
DD
VDD
--
2
--
5.5
1
V
Off-hook
Pulse
--
0.2
mA
Operating Current
IDD
2.5V
Keypad entry
No load
Tone
--
--
0.6
--
2
1
mA
On-hook, no load,
Stand-by Current
ISTB
1V
µA
No entry
Memory Retention Voltage
Memory Retention Current
Input Low Voltage
VR
IR
--
1V
--
--
On-hook
--
1
--
--
0.1
--
5.5
0.2
V
µA
V
VIL
VIH
Vss
0.2 VDD
VDD
Input High Voltage
--
--
0.8 VDD
--
V
V XMUTE =12V,
Leakage current
Sink Current
XMUTE
IXMO
--
--
--
1
µA
No entry
V XMUTE =0.5V
XMUTE
IOLXM
I HKS
2.5V
2.5V
1
--
--
--
--
0.1
--
mA
µA
V HKS =2.5V
HKS
Pin Input Current
HFI Pull-Low Resistance
RHFI
2.5V VHFI =2.5V
--
200
200
--
kΩ
kΩ
µA
Pull-High Resistance
R HDI
VHDI =0V
2.5V
HDI
--
--
Keypad Pin Source Current
Keypad Pin Sink Current
HFO Pin Source Current
HFO Pin Sink Current
IOH1
IOL1
IOH2
IOL2
IOH3
IOL3
2.5V VOH =0V
2.5V VOL =2.5V
2.5V VOH =2V
2.5V VOL =0.5V
2.5V VOH =2V
2.5V VOL =0.5V
-4
200
-1
1
-40
--
400
--
µA
--
mA
mA
mA
mA
--
--
HDO Pin Source Current
HDO Pin Sink Current
-1
1
--
--
--
--
Control key
--
0.2
1
--
Pause Time After Flash
TFP
--
s
Digit key
--
--
One-key Redialing Pause Time
Key-in Debounce Time
Break Time for One-key Redialing
Key-tone Duration
TRP
TDB
--
--
--
--
--
--
One-key redialing
--
1
--
s
ms
s
--
--
20
1.2
--
--
TBRK
TKT
One-key redialing
--
--
--
34
1.2
--
ms
KHz
Key-tone Frequency
FKTC
Fosc
--
--
--
System Frequency
Crystal =3.5795MHz
3.5759 3.5795 3.5831 MHz
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 2.0
ꢀ
2001-11-01ꢀ
6
SILAN [ SILAN MICROELECTRONICS JOINT-STOCK ]
