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 function 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