UPD17P236 datasheet(11/32 Pages) NEC

Part #	UPD17P236

Description	4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROLLER

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Manufacturer	NEC [NEC]

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µPD17P236

11

Data Sheet U14776EJ1V0DS00

2.3 Input/Output Circuits

The equivalent input/output circuit for each

µPD17P236 pin is shown below.

(4) P1A

• Input mode (

µPD17P236M2, 17P236M4)

Input buffer

• Output mode (

µPD17P236M1, 17P236M3)

data

N-ch

Output

latch

(5) RESET

VDD

P-ch

Reset input

N-ch

Input buffer

Schmitt trigger input with

hysteresis characteristics

(6) INT

Input buffer

Schmitt trigger input with hysteresis

characteristics

(7) REM

Data

P-ch

N-ch

VDD

Output

disable

(1) P0A

VDD

Input buffer

(2) P0B, P0C, P0D

VDD

P-ch

N-ch

Output

latch

Selector

Data

Output

disable

Input buffer

(3) P0E

VDD

Data

P-ch

N-ch

VDD

Input buffer

Output

disable

Pull-up

register

Output

latch

Selector

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UPD17P236 Datasheet(PDF) 11 Page - NEC

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