W78E51B
Description
The W78E51B is an 8-bit microcontroller which can acmodate a wider frequency range with low power consumption.
Key Features
- Fully static design 8-bit CMOS microcontroller
- Wide supply voltage of 4.5V to 5.5V
- 128 bytes of on-chip scratchpad RAM
- 4 KB electrically erasable/programmable MTP-ROM
- 64 KB program memory address space
- 64 KB data memory address space
- Four 8-bit bi-directional ports
- One extra 4-bit bit-addressable I/O port, additional INT2 / INT3 (available on 44-pin PLCC/QFP package)
- Two 16-bit timer/counters
- One full duplex serial port(UART)
