87C552 80C51 8-bit microcontroller

87C552 80C51 8-bit microcontroller

The 87C552 Single-Chip 8-Bit Microcontroller is manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family. The 87C552 has the same instruction set as the 80C51. Three versions of the derivative exist: • 83C552—8k bytes mask programmable ROM • 80C552—ROMless ve.

Features

• 80C51 central processing unit
• 8k × 8 EPROM expandable externally to 64k bytes
• An additional 16-bit timer/counter coupled to four capture registers and three compare registers
• Two standard 16-bit timer/counters
• 256 × 8 RAM, expandable externally to 64k bytes
• Capable of producing eight synchronized, timed outputs
• A 10-bit ADC with eight multiplexed analog inputs
• Two 8-bit resolution, pulse width modulation outputs
• Five 8-bit I/O ports plus one 8-bit input port shared with analog inputs
• I2C-bus serial I/O port with byte oriented master and slave functions
• Full-duplex UAR.