RPM971-H14
Photo Link Module
2/8
Terminal description
Terminal
Circuit
Function
Pin No
1
LEDA
Connect to Ground.
2
NC
RXD
VCC
VIO
Shield Case
3
4
5
6
7
TXD
VIO
VIO
8
GND
GROUND
LED Anode Terminal
NC
This terminal must be left open.
Transmitting Data Input Terminal
H:LED radiant (PWDOWN='L')
CMOS Logic Level Input.
VIO
VIO
PWDOWN
300k
600k
When PWDOWN(5pin)='H', the RXD output will be pulled
up to VIO at approximately 300 k&.
PWDOWN
/Mode
Power-down Control and Mode SettingTerminal
H: POWERDOWN
L : OPERATION
CMOS Logic Level Input.
When input is "H", it will stop the receiving circuit, PinPD
current and transmitting LED operation.
VCC
Supply voltage for Transceiver circuits.
For preventing from infection, connect a capacitor between
GND(8pin).
VIO
Supply voltage for I / O pins
(PWDOWN,RXD,TXD).
Other power source can be used difference between
LEDVCC and VCC.
LED current depends on LED load resistance value.
Include internal current limiter (max.400mA).
Holding TXD="H"status, LED will be turn off
approximately 48 祍.
Receiving Data Output Terminal
LED
发布紧急采购，3分钟左右您将得到回复。
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