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SC9148S bảng dữ liệu(PDF) 2 Page - List of Unclassifed Manufacturers

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SC9148S bảng dữ liệu(HTML) 2 Page - List of Unclassifed Manufacturers

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Silan
Semiconductors
SC9148B
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Rev: 2.1
2002.09.10.
2
ABSOLUTE MAXIMUM RATINGS
Characteristic
Symbol
Value
Unit
Supply Voltage(Pin 16)
VDD
6.0
V
Input/Output Voltage
VIN,VOUT
Vss-0.3V ~ VDD+0.3V
V
Power Dissipation
PD
200
mW
Operating Temperature
Tamb
-20 ~ +75
°C
Storage Temperature
Tstg
-55~+125
°C
ELECTRICAL CHARACTERISTICS(Tamb=25°C VDD=3.0V,Unless otherwise specified)
Parameter
Symbol
Test conditions
Min
Typ
Max
Unit
Operating Supply Voltage
VDD
All function operation
2.2
5.0
V
Operating supply current
IDD
Key ON, without load
1.0
mA
Quiescent Current comsuption
IDS
All key OFF stop of OSC
1.0
µA
“H” Level
VIH
2.0
3.0
V
K1~K6
CODE
Input
Voltage “L” Level
VIL
00.5
V
“H” Level
IIH
VIH=3.0V
203060
µA
K1~K6 Input
Current
“L” Level
IIL
VIL=0V
-1.0
1.0
µA
“H” Level
IIH
VIH=3.0V
-1.0
1.0
µA
CODE
TEST
Input
Current
“L” Level
IIL
VIL=0V
203060
µA
“H” Level
IOH
VOH=2.0V
-500
µA
T1~T3 Output
Current
“L” Level
IOL
VOL=3.0V
50
µA
“H” Level
IOH
VOH=2.0V
-0.1
mA
Tx
Output
Current
“L” Level
IOL
VOL=3.0V
1.0
mA
OSC Feedback resistor
Rf
500
k
Ω
Oscillation frequency
fOSC
400
455
600
kHz
PIN DESCRIPTION
Pin No.
Symbol
Terminal
Function/operation
1,16
GND,VDD
Supply Voltage Terminal
2,3
XT, non-XT
Termial for OSC
Terminal for OSC, and used for connecting a
455kHz ceramic resonater etc. (with a built-in
feedback resistor)
4~9
K1~K6
Key Input terminal
Key input Terminal for key matrix. 18 keys can
be connected at T1~T3 x K1~K6 (with a built-in
pull-down resistor)
10~12
T1~T3
Timing Signal Output
Terminal
Digit timing output terminal for key matrix.
13
CODE
Code bit input Terminal
Terminal for matching code between transmitting
and receiving
14
Non-TEST
Test terminal
Keep this terminal open
15
Tx Out
Transmitting output terminal
Transmitting signal output. Modulation is made
by 12 bits 1 cycle and 38kHz carrier wave.



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