SC9148B(2002) Ver la hoja de datos (PDF) - Silan Microelectronics
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SC9148B Datasheet PDF : 9 Pages
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Silan
Semiconductors
SC9148B
ABSOLUTE MAXIMUM RATINGS
Characteristic
Symbol
Supply Voltage(Pin 16)
VDD
Input/Output Voltage
VIN,VOUT
Power Dissipation
PD
Operating Temperature
Tamb
Storage Temperature
Tstg
Value
6.0
Vss-0.3V ~ VDD+0.3V
200
-20 ~ +75
-55~+125
Unit
V
V
mW
°C
°C
ELECTRICAL CHARACTERISTICS(Tamb=25°C VDD=3.0V,Unless otherwise specified)
Parameter
Symbol
Test conditions
Min Typ Max
Operating Supply Voltage
VDD All function operation
2.2
5.0
Operating supply current
IDD Key ON, without load
1.0
Quiescent Current comsuption
IDS All key OFF stop of OSC
1.0
K1~K6 Input “H” Level
VIH
2.0
3.0
CODE Voltage “L” Level
VIL
0
0.5
K1~K6 Input “H” Level
IIH
VIH=3.0V
20
30
60
Current “L” Level
IIL
VIL=0V
-1.0
1.0
CODE Input “H” Level
IIH
VIH=3.0V
-1.0
1.0
TEST Current “L” Level
IIL
VIL=0V
20
30
60
T1~T3 Output “H” Level
IOH VOH=2.0V
-500
Current
“L” Level
IOL VOL=3.0V
50
Unit
V
mA
µA
V
V
µA
µA
µA
µA
µA
µA
Tx
Output “H” Level
IOH VOH=2.0V
Current
“L” Level
IOL VOL=3.0V
-0.1
mA
1.0
mA
OSC Feedback resistor
Oscillation frequency
Rf
fOSC
500
kΩ
400 455 600 kHz
PIN DESCRIPTION
Pin No. Symbol
1,16
GND,VDD
2,3
XT, non-XT
4~9
K1~K6
10~12
13
14
15
T1~T3
CODE
Non-TEST
Tx Out
Terminal
Termial for OSC
Key Input terminal
Timing Signal Output
Terminal
Code bit input Terminal
Test terminal
Transmitting output terminal
Function/operation
Supply Voltage Terminal
Terminal for OSC, and used for connecting a
455kHz ceramic resonater etc. (with a built-in
feedback resistor)
Key input Terminal for key matrix. 18 keys can
be connected at T1~T3 x K1~K6 (with a built-in
pull-down resistor)
Digit timing output terminal for key matrix.
Terminal for matching code between transmitting
and receiving
Keep this terminal open
Transmitting signal output. Modulation is made
by 12 bits 1 cycle and 38kHz carrier wave.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Rev: 2.1 2002.09.10.
2
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