UPD75P068 Datasheet, PDF (1/40 Pages) NEC – 4 BIT SINGLE-CHIP MICROCOMPUTER

DATA SHEET
MOS INTEGRATED CIRCUIT
µPD75P068
4 BIT SINGLE-CHIP MICROCOMPUTER
The µPD75P068 is produced by replacing the internal mask ROM of the µPD75068 with a one-time PROM
in which data can be written once.
The following user's manual describes the details of the functions of the µPD75P068. Be sure to read it
before designing an application system.
µPD75068 User's Manual: IEU-1366
FEATURES
• Compatible with the µPD75068
• Can be replaced with the µPD75068 containing mask ROM on a full-production basis.
• Internal one-time PROM: 8064 words × 8 bits
• Internal RAM: 512 words × 4 bits
• Internal pull-up resistors can be specified with software: Ports 0 to 3 and 6
• N-ch open-drain input-output: Ports 4 and 5
• Can operate at low voltage: VDD = 2.7 to 6.0 V
ORDERING INFORMATION
Part number
µPD75P068CU
µPD75P068GB-3B4
Package
42-pin plastic shrink DIP (600 mil)
44-pin plastic QFP (Square 10 mm)
Quality grade
Standard
Standard
Caution The µPD75P068 is not provided with mask-selected pull-up resistors.
Please refer to "Quality Grades 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-3290A
(O.D. No. IC-8623A
Date Published April 1994 P
Printed in Japan
The information in this document is subject to change without notice.
Major changes in this revision are indicated by stars (5) in the margins.
© NEC CORPORATIO1N9910993