UPD75237

DATA SHEET MOS INTEGRATED CIRCUIT µPD75237 4-BIT SINGLE-CHIP MICROCOMPUTER DESCRIPTION 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 interrupt function integrated on a single-chip. The µPD75237 has the more improved peripheral functions including the RAM capacity, FIP controller/driver display capabilities, I/O ports, A/D converter and serial interface than those of the µ PD75217. The µPD75237 is most suited for advanced and popular VCR timer and tuner applications, single-chip configurations of system computers, advanced CD players and advanced microwave ovens. The µPD75P238 PROM product and various types of development tools (IE-75001-R, assemblers and others) are available for evaluation in system development or small-volume production. 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 range of power supply voltages Built-in programmable FIP controller/driver Number of segments: 9 to 24 Number of digits: 9 to 16 q q q q 8-bit A/D converter: 8 channels Powerful timer/counter function:...