HD404339 Datasheet, PDF(1/78 Page) Hitachi Semiconductor – 4-bit HMCS400-Series microcomputer with large-capacity memory

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HD404339 Datasheet, PDF (1/78 Pages) Hitachi Semiconductor – 4-bit HMCS400-Series microcomputer with large-capacity memory

HD404339 Series

Rev. 7.0

Sept. 1999

Description

The HD404339 Series is 4-bit HMCS400-Series microcomputer with large-capacity memory designed to

increase program productivity. Each microcomputer has an A/D converter, input capture timer, and a 32-

kHz oscillator circuit for clock use all built in. They also come with high-voltage I/O pins that can directly

drive a fluorescent display.

The HD404339 Series includes six chips: the HD404339 with 16-kword ROM; the HD4043312 with 12-

kword ROM; the HD404338 with 8-kword ROM; the HD404336 with 6-kword ROM; the HD404334 with

4-kword ROM; the HD4074339 with 16-kword PROM.

The HD4074339 is a PROM version ZTATâ¢ microcomputer. Programs can be written to the PROM by a

PROM writer, which can dramatically shorten system development periods and smooth the process from

debugging to mass production. (The PROM program specifications are the same as for the 27256.)

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

Features

â¢ 54 I/O pins

ï£§ One input-only pin

ï£§ 53 input/output pins: 30 pins are high-voltage pins (40 V, max.)

â¢ On-chip A/D converter (8-bit Ã 12-channel)

â¢ Three timers

ï£§ One event counter input

ï£§ One timer output

ï£§ One input capture timer

â¢ 8-bit clock-synchronous serial interface (1 channel)

â¢ Alarm output

â¢ Built-in oscillators

ï£§ Ceramic or crystal oscillator

ï£§ External clock drive is also possible

ï£§ Subclock: 32.768-kHz crystal oscillator

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