W78C51D Description
The W78C51D microcontroller supplies a wider frequency and supply voltage range than most 8-bit microcontrollers on the market. It is patible with the industry standard 80C51 microcontroller series. The W78C51D contains four 8-bit bidirectional parallel ports, one extra 4-bit bit-addressable I/O port (Port 4) and two additional external interrupts ( INT2 , INT3 ), two 16-bit timer/counters, one watchdog timer and a...
W78C51D Key Features
- Fully static design
- Supply voltage of 4.5V to 5.5V
- DC-40 MHz operation
- 128 bytes of on-chip scratchpad RAM
- 4K bytes of on-chip mask ROM
- 64K bytes program memory address space
- 64K bytes data memory address space
- Four 8-bit bidirectional ports
- Two 16-bit timer/counters
- One full duplex serial port