UPD75208

DATA SHEET MOS INTEGRATED CIRCUIT µPD75208 4-BIT SINGLE-CHIP MICROCOMPUTER DESCRIPTION The µPD75208 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 controller/driver, 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. It uses the VCR, ECR and CD fluorescent display tubes as display devices and is most suitable for applications requiring the timer/watch function and high-speed interrupt servicing. It can help to provide the unit with many functions and to decrease performance costs. With the µPD75208, the µPD75P216A, 75P218 one-time PROM products are available for system development evaluation or small production. The following manual provides detailed description of the functions of the µPD75208. Be sure to read this manual when you design an application system. µPD75216A User’s Manual: IEM-988 5 FEATURES Architecture equal to that of an 8-bit microcomputer High-speed operation : Minimum instruction execution time : 0.95 µs (when operated at 4.19 MHz) Instruction execution time variable function realizing a wide range of operating voltages On-chip large-capacity program memory : 8K bytes Watch operation with an ultra low current consumption : 5µA TYP. (at the 3 V operation) On-chip programmable fluorescent display tube controller/driver Timer function : 4 ch 14-bit PWM...