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D78CP18 Schematic ( PDF Datasheet ) - NEC

Teilenummer D78CP18
Beschreibung UPD78CP18
Hersteller NEC
Logo NEC Logo 




Gesamt 30 Seiten
D78CP18 Datasheet, Funktion
DATA SHEET
MOS INTEGRATED CIRCUIT
µPD78CP18(A)
8-BIT SINGLE-CHIP MICROCOMPUTER
DESCRIPTION
The µPD78CP18(A) is a version of the µPD78C18(A) in which the internal mask ROM is replaced by one-time PROM.
The one-time PROM version can be programmed once only by users, and is ideally suited for small-scall of many
differnt products, and rapid development and time-to-market of a new product.
The detailed functions are descrived in the following user's manual. Read this manual before starting design
work.
87AD series µPD78C18 user's manual: IEU-1314
FEATURES
High reliability compared to the µPD78CP18
Compatible with the µPD78C11A(A), 78C12A(A), 78C14(A), 78C18(A)
Internal PROM: 32768 W × 8
• Internal PROM capacity can be changed by software to conform to the µPD78C11A(A), 78C12A(A), 78C14(A),
78C18(A).
PROM programming characteristics: µPD27C256A compatiblewww.DataSheet.net/
Power supply voltage range: 5 V ± 10 %
Supports QTOPmicrocomputer
5
Remark QTOP microcomputer is the generic name of NEC's single-chip microcomputers for which NEC
provides total service including writing, marking, screening, and inspection.
ORDERING INFORMATION
Part Number
µPD78CP18GF(A)-3BE
µPD78CP18GQ(A)-36
Package
64-pin plastic QFP (14 × 20 mm)
64-pin plastic QUIP
Internal ROM
One-time PROM
One-time PROM
QUALITY GRADE
Part Number
µPD78CP18GF(A)-3BE
µPD78CP18GQ(A)-36
Quality Grade
Special
Special
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.
Document No. IC-3233A
(O. D. No. IC-8702A)
Date Published March 1995 P
Printed in Japan
The information in this document is subject to change without notice.
The mark 5 shows major revised points.
©
11999943
Datasheet pdf - http://www.DataSheet4U.co.kr/






D78CP18 Datasheet, Funktion
µPD78CP18(A)
CONTENTS
1. LIST OF PORT FUNCTIONS .......................................................................................................................7
1.1 PORT FUNCTIONS ...............................................................................................................................................7
1.2 NON-PORT FUNCTIONS (IN NORMAL OPERATION) ..................................................................................... 8
1.3 NON-PORT FUNCTIONS (DURING PROM WRITE/VERIFY AND READ) .....................................................10
1.4 HANDLING OF UNUSED PINS .........................................................................................................................10
2. MEMORY CONFIGURATION ....................................................................................................................11
3. MEMORY EXTENSION .............................................................................................................................16
3.1 MODE PINS ........................................................................................................................................................16
3.2 MEMORY MAPPING REGISTER (MM) ............................................................................................................17
4. PROM PROGRAMMING ...........................................................................................................................20
4.1 PROM PROGRAMMING OPERATING MODES ...............................................................................................21
4.2 PROM WRITING PROCEDURE .........................................................................................................................22
4.3 PROM READING PROCEDURE .........................................................................................................................23
5. SCREENING OF ONE-TIME PROM VERSIONS ......................................................................................24
6. ELECTRICAL SPECIFICATIONS ................................................................................................................25
7. CHARACTERISTIC CURVES (REFERENCE VALUE) ..............................................................................39
8. PACKAGE DRAWINGS .............................................................................................................................42
www.DataSheet.net/
9. RECOMMENDED SOLDERING CONDITIONS ........................................................................................44
10. DIFFERENCES BETWEEN THE µPD78CP18(A) AND µPD78C18(A) .....................................................45
APPENDIX. DEVELOPMENT TOOLS ..........................................................................................................46
6
Datasheet pdf - http://www.DataSheet4U.co.kr/

6 Page









D78CP18 pdf, datenblatt
Figure 2-1. Memory Map (µPD78C11A Mode)
0000H
Internal PROM
4096W × 8
0FFFH
1000H
0000H RESET
0004H NMI
0008H INTT0/INTT1
0010H INT1/INT2
µPD78CP18(A)
External Memory
61184W × 8
FEFFH
FF00H
FFFFH
Internal RAM
256W × 8
12
Vector
Area
0018H INTE0/INTE1
0020H INTEIN/INTAD
www.DataSheet.net/
0028H INTSR/INTST
0060H SOFTI
Call
Table
Area
0080H
0081H
0082H
0083H
00BEH
00BFH
00C0H
LOW ADRS
HIGH ADRS
LOW ADRS
HIGH ADRS
LOW ADRS
HIGH ADRS
USER'S AREA
t=0
t=1
t = 31
0FFFH
Datasheet pdf - http://www.DataSheet4U.co.kr/

12 Page





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