UPD63A View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD63A

4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION

NEC => Renesas Technology 

µPD63, 63A, 64

1.2 INPUT/OUTPUT Circuits of Pins

The input/output circuits of the µPD63 pins are shown in partially simplified forms below.

(1) KI/O0-KI/O7

data

Output

latch

output

disable

VDD

P-ch

N-chNote

Input buffer

(4) S0

Input buffer

standby

release

OFF mode

pull-down flag

N-ch

Note The drive capability is held low.

(2) KI0-KI3

standby

release

Input buffer

N-ch

(5) S1/LED

REM

output latch

output

disable

standby

release

pull-down flag

N-ch

pull-down flag

VDD

P-ch

N-ch

Input buffer

N-ch

(3) REM

data

Output

latch

Carrier

generator

VDD

P-ch

N-ch

(6) RESET

Internal reset signal

other than POC

Input buffer

POC circuit

Mask option

VDD

P-ch

N-ch

7

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