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UPD78P014GC-AB8 Datasheet

  • UPD78P014GC-AB8

  • 8-BIT SINGLE-CHIP MICROCOMPUTER

  • 62頁(yè)

  • NEC   NEC

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DATA SHEET
MOS INTEGRATED CIRCUIT
碌
PD78P014
8-BIT SINGLE-CHIP MICROCOMPUTER
DESCRIPTION
The
碌
PD78P014 is a member of the
碌
PD78014 subseries of 78K/0 series products. It uses a one-time-programmable
(OTP) ROM or EPROM instead of the mask ROM of the
碌
PD78014.
Because the
碌
PD78P014 can be programmed by users, it is ideally suited for applications involving the evaluation
of systems in development stages, small-scale production of many different products, and rapid development and time-
to-market of a new product.
Detailed information about product features and specifications can be found in the following document. Please
make sure to read this document before starting design.
碌
PD78014, 78014Y Series User鈥檚 Manual : IEU-1343
FEATURES
鈥?/div>
Pin compatible with mask ROM versions (except V
PP
pin)
鈥?/div>
Internal PROM: 32K bytes
Note
鈥?/div>
碌
PD78P014DW
: Reprogrammable (ideal for system evaluation)
鈥?/div>
碌
PD78P014CW, 78P014GC-AB8 : Programmable once only (ideal for small-scale production)
鈥?/div>
Internal high-speed RAM: 1024 bytes
Note
鈥?/div>
Buffer RAM: 32 bytes
鈥?/div>
Operable over same supply voltage range as mask ROM version (2.7 to 6.0 V)
鈥?/div>
Available for the QTOP
TM
microcomputer
Note
The internal PROM and internal high-speed RAM size can be set by means of the memory size switching
register.
Remark
The QTOP microcomputer is the general term for a single-chip microcomputer with on-chip one-time
PROM. NEC supports its program writing, marking, screening, and verification.
Differences from mask ROM versions are as follows:
鈥?/div>
The same memory mapping as on a mask ROM version is possible by setting the memory size
switching register.
鈥?/div>
There is no function for incorporating pull-up resistors by means of a mask option in P60 to P63
pins.
ORDERING INFORMATION
Part No.
Package
64-pin plastic shrink DIP (750 mil)
64-pin ceramic shrink DIP (with window) (750 mil)
64-pin plastic QFP (14
脳
14 mm)
Internal ROM
One-time PROM
EPROM
One-time PROM
碌
PD78P014CW
碌
PD78P014DW
碌
PD78P014GC-AB8
In this document, the common parts of the one-time PROM version and EPROM version are represented by PROM.
The information in this document is subject to change without notice.
Document No. IC-3098C
(O. D. No. IC-8111C)
Date Published January 1995 P
Printed in Japan
The mark
5
shows revised points.
漏
1992

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