RPM872-H12E4 Rohm Semiconductor, RPM872-H12E4 Datasheet - Page 3

• Manufacturer Part Number: RPM872-H12E4
• Description: MODULE IRDA 115.2KBPS 8SMD
• Manufacturer: Rohm Semiconductor

Specifications of RPM872-H12E4

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Photo Link Module
Pin No
Terminal description
1, 4
2
3
5
6
7
8
−
PWDOWN
Shield Case
Terminal
LEDA
GND
RXD
TXD
V
V
CC
IO
PWDOWN
Circuit
V
V
IO
IO
LED
600k
300k
V
IO
V
IO
GND
Pin1 and Pin4 must be connected
to the ground.
V
Supply voltage for I/O pins.
(PWDOWN, RXD, TXD)
V
Supply voltage for Transceiver circuits.
For preventing from infection, connect
a capacitor between V
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.
Receiving Data Output Terminal
CMOS Logic Level Input
When PWDOWN (5pin)=H, the RXD
output will be pulled up to V
approximately 300kΩ.
Transmitting Data Input Terminal
H : LED (PWDOWN=L)
CMOS Logic Level Output
Holding TXD="H" status, LED will be
turn off approximately 48µs.
LED ANODE Terminal
Other power source can be used
difference between LEDV
This can be connected to battery kinds
of unegulated constant source by internal
constant current driver.
Connect to Ground.
IO
CC
Function
CC
(3pin) and
CC
IO
RPM872-H12
and V
at
Rev.A
CC
.
3/6