NXP Semiconductors 83C554
This data sheet describes the 6 clock version of the 8xC554. This device is only available in 64L LQFP.DESCRIPTION
This device is only available in 64L LQFP. The 8xC554 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 compare 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 compare latches, a 15-source, four-priority-level, nested interrupt structure, an 7-input ADC, a dual DAC pulse width modulated interface, two serial interfaces (UART and I2C-bus), a “watchdog” timer and on-chip oscillator and timing circuits.