RPM871-H12 데이터 시트보기 (PDF) - ROHM Semiconductor
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RPM871-H12 Datasheet PDF : 8 Pages
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Photo Link Module
zTerminal description
Pin No Terminal
1, 4
GND
2
NC
3
VCC
5 PWDOWN
Circuit
VCC
RPM871-H12
Function
GND
Pin1 and Pin4 must be connected
to the ground.
This Terminal must be left open.
VCC
For preventing from infection, connect
a capacitor between VCC (3pin) and
GND (4pin).
Power-down Control Terminal
H : POWERDOWN
L : OPERATION
CMOS Logic Level Input
When input is H, it will stop the receiving
circuit, Pin-PD current and transmitting
LED operation.
6
RXD
PWDOWN
VCC
VCC
300k
Receiving Data Output Terminal
CMOS Logic Level Output
When PWDOWN (5pin)=H, the RXD
output will be pulled up to VCC at
approximately 300kΩ.
7
TXD
VCC
200K
Transmitting Data Input Terminal
H : LED (PWDOWN=L)
CMOS Logic Level Input
Holding TXD="H" status, LED will be
turn off approximately 45µs.
8
LEDA
− Shield Case
LED ANODE Terminal
LED
Other power source can be used
difference between LEDVCC and VCC.
LED current depends on LED load
resistance value.
Connect to Ground.
3/7
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