HD404459H Datasheet

IC型號(hào)：
HD404459H
PDF描述：
4-Bit Microcontroller
文件大?。?/label>
739.23KB
PDF頁數(shù)：
120頁
芯片廠家：
ETC

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HD404459 Series

Rev. 6.0

Sept. 1998

Description

The HD404459 Series is a member of the 4-bit HMCS400-series microcomputers with large-capacity

memory and architecture providing high program productivity. Each microcomputer has a 32-kHz

oscillator for clock, low-voltage (1.8 V) operating mode, and four low-power dissipation modes.

The HD404459 Series includes three chips: the HD404458 with an 8-kword ROM; the HD404459 with a

16-kword ROM; and the HD4074459 with a 16-kword PROM (ZTAT

version).

The HD4074459 is a PROM version (ZTAT

microcomputer). A program can be written to the PROM by

a PROM writer, thus dramatically shortening system development periods and turnaround time (ZTAT

versions are 27256-compatible).

ZTAT

: Zero Turn Around Time ZTAT is a trademark of Hitachi, Ltd.

Features

鈥?/div>

8,192-word

脳

10-bit ROM (HD404458)

16,384-word

脳

10-bit ROM (HD404459 and HD4074459)

鈥?/div>

512-digit

脳

4-bit RAM (HD404458)

768-digit

脳

4-bit RAM (HD404459 and HD4074459)

鈥?/div>

56 I/O pins, including seven input pins

鈥?/div>

Four timer/counters

鈥?/div>

1-channel

脳

8-bit input capture circuit

鈥?/div>

Three timer outputs (including two PWM outputs)

鈥?/div>

Two event counter inputs (including one double-edge function)

鈥?/div>

8-bit clock-synchronous serial interface

鈥?/div>

Eight wakeup inputs

鈥?/div>

Four-channel voltage comparator (external or internal reference power supply can be selected)

鈥?/div>

Built-in oscillators

錚?/div>

Main clock: 4-MHz ceramic or crystal oscillator (an external clock is also possible)

錚?/div>

Subclock: 32.768-kHz crystal

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HD404459H Datasheet

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