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HD4074849FS

更新时间： 2024-11-04 22:25:59

品牌	Logo	应用领域
日立 - HITACHI		外围集成电路微控制器可编程只读存储器时钟
页数	文件大小	规格书
125页	473K
描述
4-Bit Single-Chip Microcomputer

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HD4074849FS 数据手册

HD404849 Series

4-Bit Single-Chip Microcomputer

Rev. 6.0

Sept. 1998

Description

The HD404849 series of HMCS400-series microcomputers is designed to increase program productivity

and also incorporate large-capacity memory. Each microcomputer has an LCD controller/driver, A/D

converter, input capture circuit, 32-kHz oscillator for clock use, and four low-power dissipation modes.

The HD404849 series includes the HD404848 with an 8-kword on-chip ROM, the HD4048412 with a 12-

kword on-chip ROM, the HD404849 with a 16-kword on-chip ROM, and the HD4074849 with a 16-kword

on-chip PROM.

On-chip ROM is available in a PROM (ZTAT microcomputer) version and a mask ROM version. A

program 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. PROM programming

specifications are the same as for the 27256.

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

Features

•

35 I/O pins, including nine high-current pins (15 mA, max.), eight pins multiplexed with LCD segment

pins, and four pins multiplexed with analog input pins

•

Four timer/counters

Eight-bit input capture circuit

Three timer outputs (including two PWM outputs)

Two event counter inputs (including one in which the detection edge is programmable)

Clock-synchronous 8-bit serial interface

A/D converter (8 channels × 8 bits)

Operation voltage 2.7 V to 6.0 V

•

LCD driver (32 segments × 4 commons)

Built-in oscillators

Main clock: Can be driven by ceramic oscillator, crystal oscillator, or external clock.

Subclock: 32.768-kHz crystal

•

Ten interrupt sources

Four by external sources, including two in which the detection edge is programmable

12 3 4 5 6 7...125

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