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AT89C4051-24PU - 

8 Bit MCU, 8051 Family AT89C4051 Series Microcontrollers, 24 MHz, 4 KB, 128 Byte, 20 Pins, DIP

AT89C4051-24PU - 8 Bit MCU, 8051 Family AT89C4051 Series Microcontrollers, 24 MHz, 4 KB, 128 Byte, 20 Pins, DIP

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Manufacturer Part No:
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Product Range
8051 Family AT89C4051 Series Microcontrollers
Technical Datasheet:
AT89C4051-24PU   Datasheet
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Product Overview

The AT89C4051-24PU is a 8-bit low-voltage high-performance CMOS Microcontroller with 4kB of flash programmable and erasable read-only memory. The device is manufactured using Atmel's high-density non-volatile memory technology and is compatible with the industry-standard MCS-51 instruction set. By combining a versatile 8-bit CPU with flash on a monolithic chip, the Atmel AT89C4051 is a powerful microcontroller which provides a highly-flexible and cost-effective solution to many embedded control applications. The AT89C4051 provides the following standard features, 4kB of flash, 128 bytes of RAM, 15 I/O lines, two 16-bit timer/counters, a five-vector, two-level interrupt architecture, a full duplex serial port, a precision analogue comparator, on-chip oscillator and clock circuitry. In addition, the AT89C4051 is designed with static logic for operation down to zero frequency and supports two software-selectable power saving modes.
  • Compatible with MCS®-51 products
  • 2kB Reprogrammable flash memory
  • 10,000 Write/erase cycles endurance
  • Two-level program memory lock
  • 128 x 8-bit internal RAM
  • 15 Programmable I/O lines
  • Two 16-bit timer/counters
  • Six interrupt sources
  • Programmable serial UART channel
  • Direct LED drive outputs
  • On-chip analogue comparator
  • Low-power idle and power-down modes
  • Brown-out detection
  • Power-on reset (POR)



Product Information

8051 Family AT89C4051 Series Microcontrollers
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