LC662104A 데이터 시트보기 (PDF) - SANYO -> Panasonic

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LC662104A

Four-Bit Single-Chip Microcontrollers with 4, 6, and 8 KB of On-Chip ROM

SANYO -> Panasonic 

LC662104A, 662106A, 662108A

Continued from preceding page.

Pin

P50

P51/DP

P52/DT

P53/INT2

I/O

Overview

Output driver type

Options

• Pull-up MOS or Nch

I/O

I/O ports P50 to P53

• Input or output in 4-bit or 1-bit units

• P51 is also used for dial pulse output

• P52 is also used for DTMF output

• P53 is also used as the INT2 interrupt

request.

• Pch: Pull-up MOS type

• Nch: Intermediate sink current

type

• Nch: +15-V handling when

OD option selected (P51 and

P53 only)

OD output

• Output level on reset

• Output level after a

reset

(An external pull-up

resistor must be

supplied when used

for DT output.)

State after a

reset

High or low (option)

OSC1

OSC2

I System clock oscillator connections

When an external clock is used, leave

O OSC2 open and connect the clock signal

to OSC1.

RES

System reset input

I

When the P33/HOLD pin is at the high

level, a low level input to the RES pin will

initialize the CPU.

TEST

CPU test pin

I This pin must be connected to VSS

during normal operation.

VDD

VSS

Power supply pins

Note: Pull-up MOS type: The output circuit includes a MOS transistor that pulls the pin up to VDD.

CMOS output: Complementary output.

OD output: Open-drain output.

Ceramic oscillator or

external clock selection

Option selection

No. 5996-6/13

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