80C528 - NXP

80C528 CMOS single-chip 8-bit microcontroller

The 8XC528 single-chip 8-bit microcontroller is manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family. The 8XC528 has the same instruction set as the 80C51. Three versions of the derivative exist: ROM multi-source, two-priority-level, nested interrupt structure, two serial interfaces (UART and I2C-bus), and on-chip.

Features

• 80C51 instruction set
  – 32k × 8 ROM (83C528)
  – ROMless (80C528)
  – 512 × 8 RAM
  – Memory addressing capability 64k ROM and 64k RAM
  – Three 16-bit counter/timers
  – On-chip watchdog timer with oscillator
  – Full duplex UART
  – I2C serial interface
  – Four 8-bit I/O ports
• 83C528 — 32k bytes mask programmable
• 80C528 — ROMless version of the 83C528
• 87C528 — 32k bytes EPROM (described in a separate data sheet) This device provides architectural enhancements that make it applicable in a variety of applications in consumer, telecom and general control systems, especially in those systems which n.