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W78C31B 8-BIT MICROCONTROLLER
GENERAL DESCRIPTION
The W78C31B microcontroller supplies a wider frequency range than most 8-bit microcontrollers on the market. It is compatible with the industry standard 80C31 microcontroller series. The W78C31B contains four 8-bit bidirectional parallel ports, two 16-bit timer/counters, and a serial port. These peripherals are supported by a five-source, two-level interrupt capability. There are 128 bytes of RAM, and the device supports ROMless operation for application programs. The W78C31B microcontroller has two power reduction modes, idle mode and power-down mode, both of which are software selectable. The idle mode turns off the processor clock but allows for continued peripheral operation.
W78C31B Datasheet
