UPD75P238

更新时间： 2024-09-14 22:59:35

品牌	Logo	应用领域
日电电子 - NEC		计算机
页数	文件大小	规格书
50页	425K
描述
4-BIT SINGLE CHIP MICROCOMPUTER

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中文翻译

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数据手册

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UPD75P238 数据手册

DATA SHEET

MOS INTEGRATED CIRCUIT

µPD75P238

4-BIT SINGLE CHIP MICROCOMPUTER

DESCRIPTION

The µPD75P238 is a version of the µPD75238 in which the on-chip mask ROM is replaced by one-time PROM or

EPROM.

The one-time PROM version can be written to once only, and is useful for short-run and multiple device-

production of sets and early start-up. Also, the EPROM version allows programs to be written and rewritten, and

is thus ideal for system evaluation.

Functions are described in detail in the following User's Manual, which should be read when carrying out design

work.

µPD75238 User's Manual : IEU-731

The µPD75P238 EPROM product does not provide a level of reliability suitable for use as a volume

production product for users' devices. The EPROM product should be used solely for function evaluation

in experiments of preproduction.

FEATURES

o µPD75238 pin compatible

o On-chip PROM: 32640 × 8

o On-chip RAM: 1024 × 4

o High-voltage display outputs

. S0 to S8 & T0 to T9

: Internal pull-down resistors

. S9, S16 to S23 & T10 to T15: Open-drain

o Drive capability in same supply voltage range as mask version µPD75238 (2.7 to 6.0 V)

o Ports 4 & 5: No pull-up resistor

o Port 7: No pull-down resistor

Note No internal pull-up and pull-down resistor function by mask option.

USE

VCR, Audio-visual, ECR, Microwave oven

ORDERING INFORMATION

Ordering Code

µPD75P238GJ-5BG

µPD75P238KF

Package

On-Chip ROM

One-time PROM

EPROM

Quality Grade

Standard

94-pin plastic QFP(■20 mm)

94-pin ceramic WQFN

Standard

Please refer to “Quality grade on NEC Semiconductor Devices” (Document number IEI-1209) published by

NEC Corporation to know the specification of quality grade on the devices and its recommended applications.

This manual describes common parts of One-time PROM and EPROM products as PROM.

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

The mark ★ shows major revised points.

Document No. IC-2596A

(O.D. No. IC-8014A)

Date Published February 1994 P

Printed in Japan

12 3 4 5 6 7...50

中文翻译

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