參數(shù)資料
型號: RPM872-H12E4
廠商: Rohm Semiconductor
文件頁數(shù): 3/7頁
文件大?。?/td> 73K
描述: MODULE IRDA 115.2KBPS 8SMD
標準包裝: 1,000
系列: *
RPM872-H12 
 
Photo Link Module
 
 
Rev.A
3/6 
 
Terminal description
Terminal
Circuit
Function
Pin No
1, 4
GND
GND
Pin1 and Pin4 must be connected
to the ground.
VIO
Supply voltage for I/O pins.
(PWDOWN, RXD, TXD)
Power-down Control Terminal
CMOS Logic Level Input
When input is H, it will stop the receiving
circuit, Pin-PD current and transmitting
LED operation.
H : POWERDOWN
L : OPERATION
Receiving Data Output Terminal
CMOS Logic Level Input
When PWDOWN (5pin)=H, the RXD
output will be pulled up to VIO at
approximately 300k&.
Transmitting Data Input Terminal
H : LED (PWDOWN=L)
CMOS Logic Level Output
Holding TXD="H" status, LED will be
turn off approximately 48祍.
LED ANODE Terminal
Other power source can be used
difference between LEDVCC and VCC.
This can be connected to battery kinds
of unegulated constant source by internal
constant current driver.
2
VIO
PWDOWN
RXD
TXD
LEDA
3
5
6
7
8
Shield Case
Connect to Ground.

VCC
VCC
Supply voltage for Transceiver circuits.
For preventing from infection, connect
a capacitor between VCC (3pin) and
GND (4pin).
VIO
VIO
600k
LED
VIO
VIO
300k
PWDOWN
 
 
 
 
 
 
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