UPD62A NEC, UPD62A Datasheet - Page 7

• Manufacturer Part Number: UPD62A
• Description: 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION
• Manufacturer: NEC

1.2 Pin Input/Output Circuits
disable
Data
Pull-down flag
Output
Standby
release
Data
The input/output circuits of the PD62A pins are shown in partially simplified forms below.
(1) K
Note The drive capability is held low.
(2) K
(3) REM
I/O0
I0
Carrier
generator
Output
latch
to K
Output
latch
to K
I3
I/O7
Input buffer
Input buffer
N-ch
V
DD
P-ch
N-ch
V
DD
N-ch
P-ch
Data Sheet U14474EJ1V0DS00
Note
N-ch
Internal reset signal
REM
output latch
Standby
release
(4) S
(5) S
(6) RESET
other than POC
Standby
release
disable
Output
POC circuit
1
0
/LED
Pull-down flag
Pull-down flag
OFF mode
Input buffer
Input buffer
Mask option
Input buffer
V
V
DD
DD
PD62A
P-ch
N-ch
P-ch
N-ch
N-ch
N-ch
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