80C51 Microcontroller - 12T

Part No.	W78C054A
Datasheet	W78C54.pdf
Description	W78C054A provides an enhanced architecture that makes it more powerful and suitable for a variety of applications for general control systems. It provides on-chip 16KB mask ROM to accommodate large program codes, 256-bytes of non-volatile on-chip RAM, four 8-bit I/O ports, one 4-bit I/O port, three 16-bit timer/counters, eight sources with two-level interrupt structures, and on-chip oscillator clock circuits.
Features	Fully static design Supply voltage of 4.5V to 5.5V DC-40 MHz operation 256 bytes of on-chip scratchpad RAM 16K 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 Seven-source, two-level interrupt capability One extra 4-bit bit-addressable I/O port Two additional external interrupts INT2 / INT3 Watchdog timer EMI reduction mode Built-in power management Code protection
Diagram	N/A
Package	DIP40, PLCC44, PQFP44 (Lead-Free RoHS)
Other Files	N/A
Development Tools	N/A
Others	N/A