UPD75237 Datasheet (NEC) - 4-BIT MICROCOMPUTER

UPD75237, 4-BIT MICROCOMPUTER

The µPD75237 is a microcomputer with a CPU capable of 1-, 4-, and 8-bit-wise data processing, a ROM, a RAM, I/O ports, a fluorescent display tube (FIP ®) controller/driver, A/D converters, a watch timer, a timer/pulse generator capable of outputting 14-bit PWM, a serial interface and a vectored inte

UPD75237 Features

* q Built-in, large-capacity ROM and RAM

* Program memory (ROM): 24K × 8

* Data memory (RAM): 1K × 4 I/O port: 64 ports (except FIP dedicated pins) Minimum instruction execution time: 0.67 µs (when operated at 6.0 MHz) Instruction execution time varying function to achieve a wide rang