UPD78P324LPA datasheet, PDF - EEWORLD Datasheet

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UPD78P324LPA: Description16-/8-Bit Single-Chip Microcomputers; File Size445KB，80 Pages; ManufacturerNEC ( Renesas ); Websitehttps://www2.renesas.cn/zh-cn/

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UPD78P324LPA Overview

16-/8-Bit Single-Chip Microcomputers

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DATA SHEET

PD78P324, 78P324(A)

16-/8-Bit Single-Chip Microcomputers

MOS INTEGRATED CIRCUIT

The

PD78P324 is a product in which the

PD78324’s internal mask ROM is replaced by a one-time PROM

or EPROM. The one-time PROM product, which enables writing only once, is effective for multiple-device

small production of sets or early start of mass-production. The EPROM product, which enables program

writing, deletion, and rewriting, is the most suitable for system evaluation.

The

PD78P324(A) is more reliable than the

PD78P324. The

PD78P324(A) is a product resulting from

the

PD78324(A) whose internal mask ROM is replaced by a one-time PROM.

For details of functions, please refer to the following User’s Manual. Reading this manual is indispensable

especially for designing work.

PD78322 User’s Manual: IEU-1248

FEATURES

PD78324 compatible

• For mass-production, this can be replaced by the

PD78324 incorporated in the mask ROM.

Minimum instruction run time: 250 ns (with the external clock operating at 16 MHz):

PD78P324 & 78P324(A)

320 ns (with the external clock operating at 12.5 MHz):

PD78P324(A1) &

78P324(A2)

Internal PROM: 32768 x 8 bits

• Writing enabled only once (windowless one-time PROM product)

• Elimination by ultraviolet light and electrical rewriting enabled (EPROM product with window):

PD78P324

only

ECC circuit incorporated

• High internal PROM content reliablility possible

PROM programming characteristic:

PD27C1001A compatible

QTOP

microcomputer compatible

Remark

A QTOP microcomputer is a single-chip microcomputer with one-time PROM for which program

writing, marking, screening, and verifying is completely supported by NEC.

APPLICATION FIELDS

PD78P324: Fields dealing with motor control equipment.

PD78P324(A), 78P324(A1), and 78P324(A2): Automotive and transportation equipments, etc.

This document describes the

PD78P324, 78P324(A),

PD78P324(A1), and

PD78P324(A2) as well. However,

unless there are particular differences, the

PD78P324 is described as a representative product. PROM is

the representative term used for the part common to both the one-time PROM product and the EPROM

product.

The information in this document is subject to change without notice.

Document No. IC-2857

(O. D. No. IC-8315)

Date Published January 1995 P

Printed in Japan

1991, 1995

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