RPM841-H16E4A2 Rohm Semiconductor, RPM841-H16E4A2 Datasheet - Page 5
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RPM841-H16E4A2
Manufacturer Part Number
RPM841-H16E4A2
Description
MODULE IRDA 115.2KBPS 7-SMD
Manufacturer
Rohm Semiconductor
Datasheet
1.RPM841-H16E4A.pdf
(10 pages)
Specifications of RPM841-H16E4A2
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Photo Link Module
(Emitting side)
Notes) Please be sure to set up the TX-RC (2pin) and the TXD (3pin) input to be ''L'' (under 0.3V)
LED Operation Mode Table
Interface operating timing
PWDOWN
(1) When TXD output for IrDA and TXD output for controller are different lines.
(5pin)
L
L
L
H
H
H
except transmitting data (for < 90µs. ON Duty
When either TX-RC (2pin) input TXD (3pin) input keeps the state of ''H'' (more than appproximately 48µs),
LED will be turned off due to LED pulse width limiting circuit if the pulse is input from the other terminal.
Therefore, don't use as the normal transmitting is impossible.
Please input the pulse when both TX-RC (2pin) and TXD (3pin) are ''L''.
Even if RPM841-H16 input H pulse into TXD in the state of a power down, LED does not emanate.
of TX-RC (2pin) and TXD (3pin) in the table above is supposed to be the pulse input.
TX-RC
(4pin)
L
L
L
L
(7pin)
TXD
1
7
L
L
L
L
50%).
TXD
RXD
GND
LEDA
TX-RC
PWDOWN
V
CC
Emitting Mode
OFF
IrDA
OFF
OFF
LED
RC
RC
Operation Condition
LEDV
V
IrDA Receiver
CC
OFF
OFF
OFF
CC
ON
ON
ON
IrDA
Controller
RC Transmitting
Controller
(BU787X etc)
RPM841-H16
Rev.B
5/9