AT89C2051-24PI reference image
Reference image 20

AT89C2051-24PI

8051-compatible 8-bit microcontroller with 2 KB Flash

Series
AT89C2051
Package
20-lead PDIP
Temperature
-40°C to +85°C
Specifications

Key details

Part NumberAT89C2051-24PI
ManufacturerMicrochip Technology
Category8-bit Microcontroller
Lifecycle StatusObsolete
SeriesAT89C2051
Package / Case20-lead PDIP
Pin Count20
Operating Temperature-40°C to +85°C
Last Verified2026-07-18
Overview

Part information

AT89C2051-24PI Overview

AT89C2051-24PI is a Microchip Technology 8051-compatible 8-bit microcontroller with 2 KB Flash supplied in 20-lead PDIP. This page uses the exact orderable code because package, grade, temperature and option suffixes can change compatibility.

Key Technical Specifications

Core 8051-compatible 8 bit
Program Memory 2 KB Flash
Maximum Clock 24 MHz
I/O Lines 15
Supply Voltage 2.7 V to 6 V family range

Package and Ordering Notes

The listed package is 20-lead PDIP with 20 pins, leads, lands or contacts. The featured image is a generic package illustration for form-factor identification and is not an actual date-code or lot photograph. Lifecycle is recorded as Obsolete; confirm current factory support and last-time-buy constraints before design-in.

Sourcing Guidance

AT89C2051-24PI is a legacy or obsolete orderable code. Source only with date-code, label, package and traceability checks appropriate to the application.

For an accurate quotation, include the full MPN, target quantity, acceptable date-code range, packaging format and destination. Icearth can help review traceability documents, label photos and electrical/package alignment before order placement.

Manufacturer Documentation

Technical values were checked against Microchip Technology documentation. Use the linked datasheet as the controlling source and re-check revisions before PCB release or firmware qualification.

Related part numbers

These published records are the closest catalog references to AT89C2051-24PI by manufacturer, product category, series or package. Confirm electrical ratings, pinout and ordering suffixes before substitution.

  • AT89C51CC01UA-RLTUM — 8051-compatible 8-bit microcontroller with integrated CAN controller and UART bootloader Related by the same manufacturer and the same component category.
  • AT89C51RC2-RLTUM — high-performance 8051-compatible 8-bit microcontroller with 32 KB Flash Related by the same manufacturer and the same component category.
  • BHI260AP — programmable smart sensor hub with 32-bit MCU, 6-axis IMU and self-learning AI software Related by the same microcontroller product group.
  • CY7C68013A-100AXC — high-speed USB 2.0 peripheral controller with enhanced 8051 core and 16 KB internal RAM Related by the same microcontroller product group.

Sourcing notes

Lifecycle and sourcing review

Obsolete

This part has a legacy lifecycle status. Submit the exact MPN, quantity, delivery destination and date-code requirements for a sourcing review.

AT89C2051-24PI is a legacy or obsolete orderable code. Source only with date-code, label, package and traceability checks appropriate to the application.