UPD64A 데이터 시트보기 (PDF) - NEC => Renesas Technology

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UPD64A

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

NEC => Renesas Technology 

µPD64A, 65

1.2 Pin I/O Circuits

The I/O circuits of the µPD64A and 65 pins are shown in partially simplified forms below.

(1) KI/O0 to 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 to 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) S2

Standby

release

STOP release

ON/OFF

Input buffer

N-ch

Data Sheet U14380EJ3V0DS00

7

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