80C554
DESCRIPTION
This data sheet describes the 6 clock version of the 8x C554. This device is only available in 64L LQFP. The 8x C554 Single-Chip 8-Bit Microcontroller is manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family. The 87C554 has the same instruction set as the 80C51. Three versions of the derivative exist:
- 80C51 central processing unit
- 16k × 8 EPROM expandable externally to 64k bytes
- An additional 16-bit timer/counter coupled to four capture registers and three pare registers
FEATURES
- 83C554- 16k bytes ROM
- 80C554- ROMless version
- 87C554- 16k bytes EPROM
The 87C554 contains a 16k × 8 non-volatile EPROM, a 512 × 8 read/write data memory, five 8-bit I/O ports, one 8-bit input port, two 16-bit timer/event counters (identical to the timers of the 80C51), an additional 16-bit timer coupled to capture and pare latches, a 15-source, four-priority-level, nested interrupt structure, an 7-input ADC, a dual DAC pulse width modulated...
