W78  -  系列元器件数据手册
W78E54C  -  8-bit microcontroller  -  Nuvoton Technology Corporation  -  8051

Description
The W78E054C is an 8-bit microcontroller which is fully compatible with the standard 8051. The W78E054C contains an 16K bytes Flash EPROM; a 128 bytes RAM; four 8-bit bi-directional and bit-addressable I/O ports; an additional 4-bit I/O port P4; two 16-bit timer/counters; a hardware watchdog timer and a serial port.

Features
Fully static design 8-bit CMOS microcontroller
Wide supply voltage of 4.5V to 5.5V
128 bytes of on-chip scratchpad RAM
16 KB On-chip Flash EPROM
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(available on 44-pin PLCC/QFP package)
Two 16-bit timer/counters
One full duplex serial port(UART)
Watchdog Timer
Seven sources, two-level interrupt capability
EMI reduction mode
Built-in power management
Code protection mechanism