Integrated Circuit

Compatible with MCS-51 Products.

The AT89C4051 is a low-voltage, high-performance CMOS 8-bit microcontroller with4K bytes of Flash programmable and erasable read-only memory. The device is manufacturedusing Atmel's high-density nonvolatile memory technology and iscompatible with the industry-standard MCS-51 instruction set. By combining a versatile8-bit CPU with Flash on a monolithic chip, the Atmel AT89C4051 is a powerfulmicrocontroller which provides a highly-flexible and cost-effective solution to manyembedded control applications.

Ref. Doc. : doc1001.pdf
Sales Price : RM5.10


  • 4K Bytes of Reprogrammable Flash Memory
  • 128 x 8-bit Internal RAM
  • Two 16-bit Timer/Counters
  • Six Interrupt Sources
  • Programmable Serial UART Channel
  • Direct LED Drive Outputs
  • On-chip Analog Comparator
  • Low-power Idle and Power-down Modes
  • Brown-out Detection
  • Power-On Reset (POR)
  • 15 Programmable I/O Lines
  • 20-lead PDIP
  • Operating Voltage : 2.7 - 6V
  • 0Hz - 24MHz