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Microcontrollers and Processors, FPGA
  • AT89C51-24PI DIP-40 8-bit Microcontroller MCU 8-bit 8051 CISC 4KB Flash 5V 40-Pin PDIP 8-bit Microcontroller AT89C51-24PI
  • AT89C51-24PI DIP-40 8-bit Microcontroller MCU 8-bit 8051 CISC 4KB Flash 5V 40-Pin PDIP 8-bit Microcontroller AT89C51-24PI
  • AT89C51-24PI DIP-40 8-bit Microcontroller MCU 8-bit 8051 CISC 4KB Flash 5V 40-Pin PDIP 8-bit Microcontroller AT89C51-24PI
  • AT89C51-24PI DIP-40 8-bit Microcontroller MCU 8-bit 8051 CISC 4KB Flash 5V 40-Pin PDIP 8-bit Microcontroller AT89C51-24PI
  • AT89C51-24PI DIP-40 8-bit Microcontroller MCU 8-bit 8051 CISC 4KB Flash 5V 40-Pin PDIP 8-bit Microcontroller AT89C51-24PI
  • AT89C51-24PI DIP-40 8-bit Microcontroller MCU 8-bit 8051 CISC 4KB Flash 5V 40-Pin PDIP 8-bit Microcontroller AT89C51-24PI
AT89C51-24PI DIP-40 8-bit Microcontroller MCU 8-bit 8051 CISC 4KB Flash 5V 40-Pin PDIP 8-bit Microcontroller AT89C51-24PI
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AT89C51-24PI DIP-40 8-bit Microcontroller MCU 8-bit 8051 CISC 4KB Flash 5V 40-Pin PDIP 8-bit Microcontroller AT89C51-24PI

  • 100 - 999 Pieces
    $0.90
  • 1000 - 9999 Pieces
    $0.60
  • >= 10000 Pieces
    $0.45
View product details

AT89C51-24PI DIP-40 8-bit Microcontroller MCU 8-bit 8051 CISC 4KB Flash 5V 40-Pin PDIP 8-bit Microcontroller AT89C51-24PI

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Embedded Control & Processing: An 8-bit 8051 CISC microcontroller with 4KB Flash memory, designed for executing complex instructions and managing real-time operations in embedded systems.
  • Multi-Scenario Adaptation: Supports a wide range of applications, including motor control, data processing, and peripheral communication via its 40-pin PDIP package.

Key features

  • 1. Material Technology

    • With corrosion-resistant metal pins and durable plastic encapsulation, ensure reliable electrical connections and protection against environmental damage.

  • 2. Interactive Design

    • With a dual-row 40-pin DIP package, easily integrate into PCBs using standard headers or sockets for seamless prototyping and manufacturing.

  • 3. Performance Parameters

    • With 4KB Flash memory and an 8-bit CISC architecture, execute complex embedded tasks at up to 12MHz, supporting applications like motor control and data logging.

  • 4. Scenario Solutions

    • With a versatile 8051 core and low-power modes, deploy in home appliances, industrial control systems, or IoT devices for reliable operation in both prototyping and mass production environments.

  • 5. Certification Standards

    • With RoHS compliance and EPR certifications for France and Germany, meet stringent environmental and packaging regulations in European markets.

Product details

AT89C51-24PI DIP-40 8-bit Microcontroller MCU 8-bit 8051 CISC 4KB Flash 5V 40-Pin PDIP 8-bit Microcontroller AT89C51-24PI

The AT89C51-24PI is an 8-bit microcontroller with a 40-pin PDIP package, designed for embedded systems requiring robust performance and flexibility. Built on the 8051 CISC architecture with 4KB of Flash memory, it operates at 5V and complies with RoHS and EPR certifications, ensuring environmental compliance for global markets. Its dual-row pin configuration and plastic encapsulation enable reliable integration into industrial, consumer, and automation applications.

Technical specifications

FeatureSpecificationApplication Scenario
Architecture8-bit 8051 CISCLegacy systems, basic control tasks
Flash Memory4KBSimple firmware storage for IoT sensors
Operating Voltage5VCompatibility with legacy power supplies
Package Type40-pin PDIP (Dual Inline Package)Prototyping, through-hole PCB assembly
CertificationsRoHS, EPR France/Germany PackingCompliance for EU electronics manufacturing

Customization guide

Adjust firmware programming to tailor functionality for specific tasks (e.g., motor control or data logging). Modify pin configurations for I/O expansion or power management to meet project requirements.

Get inspired

With its compact DIP-40 design and 8051 core, the AT89C51-24PI is ideal for building cost-effective solutions like home appliances, industrial sensors, or educational robotics kits.

Choose your model

ParameterBase Model (AT89C51-24PI)Advanced ModelPro Model
Flash Memory4KB8KB (+100%)16KB (+300%)*
Operating Voltage5V3.3VDual (3.3V/5V)
CertificationsRoHS, EPRRoHS, REACHRoHS, AEC-Q100

Supplier's note

  1. Technical Breakthroughs:

    • 4KB Flash Memory: Enables compact firmware storage for IoT sensors.
    • 5V Operation: Ensures backward compatibility with legacy systems.
    • EPR Compliance: Simplifies EU market entry for eco-conscious designs.

  2. Optimal Version Selection:

    • Base Model: Ideal for simple control tasks (e.g., LED drivers) where cost and legacy compatibility are priorities.
    • Advanced Model: Suitable for projects needing higher memory (e.g., data-logging devices) and broader regulatory compliance.
    • Pro Model: Best for automotive or industrial applications requiring dual voltage support and AEC-Q100 automotive-grade reliability.

With its 4KB Flash, you can store essential code for basic automation. The Pro’s 16KB memory (4x the base) supports complex algorithms, while its dual voltage capability ensures compatibility with modern 3.3V systems.

Frequently asked questions

  • Which 8-bit microcontroller is best for basic embedded systems like IoT devices?

  • How to store AT89C51-24PI DIP-40 to prevent pin oxidation?

  • PDIP vs QFN packaging: Which is better for prototyping with AT89C51-24PI?

  • Can AT89C51-24PI be programmed for custom firmware in industrial control systems?

  • Is AT89C51-24PI RoHS and EPR-compliant for EU projects?

  • How to expand AT89C51-24PI with external sensors for data logging?

  • Does AT89C51-24PI support low-power modes for battery-operated devices?

  • Which microcontroller suits educational projects needing 4KB Flash like AT89C51-24PI?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Package TypeEmbedded systems requiring through-hole mountingIndustry Standard: DIP-40 (IEC 60607 compliant)
Our Base: PDIP-40 (ISO 9001 certified)
Our Advanced: QFN-48 (RoHS & AEC-Q100)		▲ Advanced: Smaller footprint, better thermal performance
Base: Easy prototyping and soldering		▲ Standard/Advanced: Higher cost for QFN reflow soldering
Base: Bulky for compact designs
Operating VoltageBattery-operated devicesIndustry Standard: 5V (IEC 60068-2-37)
Our Base: 5V (IEC 60068-2-37)
Our Advanced: 3.3V (IEC 60068-2-37 + low-power mode)		▲ Advanced: 30% lower power consumption for IoT devices
Base: Backward compatibility with legacy systems		▲ Advanced: Requires voltage regulators for 5V systems
Base: Higher power draw
Flash MemoryIndustrial control systemsIndustry Standard: 2KB–8KB (ISO/IEC 17025)
Our Base: 4KB (ISO/IEC 17025)
Our Advanced: 16KB (ISO/IEC 17025 + wear leveling)		▲ Advanced: Supports complex firmware (e.g., PID algorithms)
Base: Sufficient for basic PLC tasks		▲ Advanced: 4x cost increase vs. Base
Base: Limited for multi-tasking
CPU ArchitectureReal-time embedded applicationsIndustry Standard: 8-bit (MIPS: 12 MIPS)
Our Base: 8-bit 8051 (12 MIPS)
Our Advanced: 16-bit (32 MIPS, IEEE 1671)		▲ Advanced: 2.7x faster execution for signal processing
Base: Legacy compatibility with 8051 ecosystem		▲ Advanced: Steeper learning curve for developers
Base: Slower for high-frequency tasks
CertificationsEU-compliant manufacturingIndustry Standard: RoHS (EU Directive 2011/65/EU)
Our Base: RoHS + EPR France/Germany (EN 50574)
Our Advanced: RoHS + REACH + ISO 14001		▲ Advanced: Full compliance for automotive/aerospace (e.g., ISO 14001)
Base: Meets basic EU packing regulations		▲ Advanced: Requires third-party audits
Base: Limited to consumer-grade applications
Clock SpeedHigh-speed data acquisitionIndustry Standard: 12MHz (IEC 60747-5)
Our Base: 12MHz (IEC 60747-5)
Our Advanced: 24MHz (IEC 60747-5 + jitter <1ns)		▲ Advanced: 2x faster sampling for sensor arrays
Base: Adequate for 10-bit ADCs		▲ Advanced: Needs heat sinks for sustained use
Base: Risk of timing errors in high-speed loops

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