UPD61P34BGS NEC, UPD61P34BGS Datasheet - Page 8

• Manufacturer Part Number: UPD61P34BGS
• Description: 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION
• Manufacturer: NEC

disable
1.3 INPUT/OUTPUT Circuits of Pins
8
output
data
data
The input/output circuits of the PD61P34B pins are shown in partially simplified forms below.
(1) K
Note The drive capability is held low.
(2) K
(3) REM
standby
release
I/O0
I0
pull-down flag
-K
Output
latch
Carrier
generator
Output
latch
-K
I3
I/O7
Input buffer
Input buffer
V
V
DD
N-ch
P-ch
DD
P-ch
N-ch
N-ch
Data Sheet U13595EJ2V0DS00
Note
N-ch
standby
release
Internal reset signal
REM
output latch
other than POC
(4) S
(5) S
standby
(6) RESET
release
disable
output
POC circuit
1
0
pull-down flag
pull-down flag
/LED
OFF mode
Input buffer
Input buffer
Input buffer
V
DD
V
DD
P-ch
N-ch
P-ch
N-ch
PD61P34B
N-ch
N-ch