UPD75238 Datasheet, PDF (1/190 Pages) NEC – 4 BIT SINGLE-CHIP MICROCOMPUTER

ELECTRON DEVICE
DATA SHEET
MOS INTEGRATED CIRCUIT
µPD75238
4 BIT SINGLE-CHIP MICROCOMPUTER
The µPD75238 is a single-chip microcomputer which contains a CPU capable of 1-, 4-, and 8-bit data
processing, ROM, RAM, and I/O ports. In addition, it contains a fluorescent display tube (FIP^;) controller/driver,
A/D converter, clock timer, timer/pulse generator capable of 14-bit PWM output, serial interface, and vectored
interrupt function.
In comparison with the µPD75217, the µPD75238 has larger ROM and RAM capacity and has been enhanced
in such peripheral facilities as the display function of the FIP controller/driver, I/O ports, A/D converter, serial
interface.
The µPD75238 finds best use in such applications as timer/tuner of VCRs from advanced type to common
type, configuration of one-chip system control microcomputer, advanced CD player, advanced microwave
ovens, etc.
With the µPD75238, the µPD75P238, which is a PROM product, and various development tools including
IE-75001-R and assemblers are available. They can be used for evaluation during system development and
small-volume production.
FEATURES
• Mass-storage built-in ROM and RAM
• Program memory (ROM) : 32K × 8
• Data memory (RAM) : 1K × 4
• I/O port: 64 lines (excluding pins dedicated
to FIP)
• Minimum instruction execution time:
0.67 µs (at 6.0 MHz)
• Instruction execution time specification func-
tion to allow a wide range of operating
voltages
• Programmable FIP controller/driver contained
• Number of segments: 9 to 24 segments
• Number of digits : 9 to 16 digits
• 8-bit A/D converter: 8 channels
• Enhanced timer/counter function: 5 channels
• 8-bit serial interface: 2 channels
• Application-oriented interrupt functions
• PROM version device: µPD75P238
ORDERING INFORMATION
Part number
µPD75238GJ-×××-5BG
Package
94-pin plastic QFP (20 × 20 mm)
Quality grade
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.
Document No.
(O.D. No.
Date Published
Printed in Japan
IC-2777A
IC-8177A)
February 1993 P
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 Corporation 1992