UPD17233MC Ver la hoja de datos (PDF) - NEC => Renesas Technology

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componentes Descripción

Fabricante

UPD17233MC

4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER

NEC => Renesas Technology 

µPD17230, 17231, 17232, 17233, 17234, 17235, 17236

1.1 Pin Function List (2/2)

Pin No.

23 (24)

24 (25)

25 (26)

26 (27)

Symbol

P0C0

P0C1

P0C2

P0C3

(15)

IC1

(30)

IC2

Function

Output Form

These pins constitute a 4-bit I/O port that can be set in the input or

output mode in 4-bit units (group I/O).

In the input mode, these pins are CMOS input pins with a pull-up

resistor, and can be used as the key return input lines of a key

matrix. The standby status is released when at least one of these

pins goes low.

In the output mode, they serve as N-ch open-drain output pins and

can be used as the output lines of a key matrix.

N-ch

open-drain

These pins cannot be used.

–

Leave open.

On Reset

Low-level

output

–

Remark The number in parenthesis in the Pin No. column indicates the pin numbers of the 30-pin plastic SSOP.

Data Sheet U14360EJ1V0DS00

9

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