HD4043312 datasheet(3/80 Pages) RENESAS

Part #	HD4043312

Description	microcomputer with large-capacity memory designed to

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Manufacturer	RENESAS [Renesas Technology Corp]

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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 ZTAT

™ 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.)

ZTAT

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

Features

• 54 I/O pins

 One input-only pin

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

• On-chip A/D converter (8-bit × 12-channel)

• Three timers

 One event counter input

 One timer output

 One input capture timer

• 8-bit clock-synchronous serial interface (1 channel)

• Alarm output

• Built-in oscillators

 Ceramic or crystal oscillator

 External clock drive is also possible

 Subclock: 32.768-kHz crystal oscillator

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