UPD75238 Datasheet - NEC

UPD75238 4-BIT MICROCOMPUTER

DATA SHEET MOS INTEGRATED CIRCUIT ELECTRON DEVICE 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 µ PD75217, the µPD75238 has larger ROM.

UPD75238 Features

* Mass-storage built-in ROM and RAM

* Program memory (ROM) : 32K × 8

* Data memory (RAM) to FIP) : 1K × 4

* I/O port: 64 lines (excluding pins dedicated

* Minimum instruction execution time: 0.67 µs (at 6.0 MHz)

UPD75238 Datasheet (1.66 MB)