SC2268 데이터 시트보기 (PDF) - Silan Microelectronics
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SC2268 Datasheet PDF : 6 Pages
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Silan
Semiconductors
SC2268
ABSOLUTE MAXIMUM RATINGS
Characteristic
Symbol
Supply Voltage
VCC
Input/Output Voltage
VIN/VOUT
Power Dissipation
PD
Operating Temperature
Topr
Storage Temperature
Tstg
Value
0 ~ 6.0
Vss-0.2V ~ VCC+0.3V
500
-20 ~ +70
-55 ~ +125
Unit
V
V
mW
°C
°C
ELECTRICAL CHARACTERISTICS(Tamb=0 ~ 70°C,VCC-VSS =3 ± 10%V,Unless otherwise specified)
Parameter
Symbol
Test conditions
Min Typ Max Unit
Operating Voltage
VCC
--
2.2
3
5
V
Operating Current(note)
IOP OSC On, TxOUT is floating.
--
0.5
1
mA
Standy-by Current
I1 ~ I8 = “L” OSC Stops.
ISB
TxOUT is floating.
0.5
1
3
µA
Sinking Current of TxOUT
ISINK
VOL=2.2V, VDD=3V
VOL=1.5V, VDD=3V
8
15
--
mA
4
6
--
Input Voltage of High Level
VIH
I1 ~I8
Low level
VIL
--
0.7VCC --
VCC
V
--
0
-- 0.3VCC
Input Pull-Low Resistor
RL
--
30
50
80
kΩ
Input Pull-High Resistor
RH
--
40
90 150 kΩ
Oscillation frequency
fOSC
--
--
455
--
kHz
Note: For pins I1 ~ I8 : Any one of the said pins is set to HIGH while the others are set to LOW.
PIN DESCRIPTION
Pin No.
Symbol
1~8
I1 ~ I8
9
11~12
Vss
C4~C5
10
C6
13
TxOUT
15
OSCI
14
OSCO
16
Vcc
I/O
Function
Key input pins.
I
These pins are used to connect a maximum of 8 keys.
(each pin has a built-in pull-low resistor).
--
Negative power supply.
Select input pin for start word.
I
These pins have internal pull-low resistor.
Select input pin for start word.
I
This pins have internal pull-high resistor.
Transmission output pin.
O
This pin is an open drain (NMOS) output and is used to transmit
signals. The carrier frequency is 38kHz.
I
Oscillator Input Pin
These pins are used to externally
O
Oscillator Outpu Pin
connect a 455kHz ceramic resonator.
--
Positive power supply.
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0 2000.12.31
2
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