Microcontroller Mcu, 8 Bit, 8051, 24Mhz, Dip-20; Product Range:8051 Family At89C2051 Series Microcontrollers; Device Core:8051; Operating Frequency Max:24Mhz; Program Memory Size:2Kb; No. Of Pins:20Pins; Ic Case/Package:Dip; Msl:- Rohs Compliant: Yes |Microchip AT89C2051-24PU

AT89C2051-24PU – 8-bit Microcontroller, 24MHz, 2KB Flash, 128B RAM – Microchip Technology

This AT89C2051-24PU microcontroller from Microchip Technology delivers robust performance for embedded control applications. Ideal for cost-sensitive designs requiring reliable 8051 architecture, it features integrated Flash memory and versatile I/O capabilities. PCX ensures genuine Microchip components with same-day shipping and dedicated technical support.

Key Features

• Core: 8051 8-bit processor @ 24MHz
• Memory: 2KB Flash program memory + 128B RAM
• Voltage Range: 4V to 6V operation
• I/O Capabilities: 15 programmable I/O pins
• Communication: UART/USART connectivity
• Temperature Range: Industrial-grade -40°C to +85°C
• Package: 20-pin PDIP (through-hole mounting)

Technical Details

The AT89C2051-24PU employs a modified Harvard architecture with internal program execution. Its 128-byte RAM supports data variables, while the 2KB Flash memory enables 1,000 write/erase cycles. The device includes an internal oscillator, reducing external component requirements. With 15 multi-functional I/O lines and UART serial interface, it supports LED control and basic communication protocols. The industrial temperature tolerance ensures reliability in harsh environments.

Typical Applications

• Industrial control systems
• Consumer electronics interfaces
• Sensor data acquisition modules
• Automotive accessory controllers
• Power management circuits

About Microchip Technology

Microchip Technology is a global leader in microcontroller and analog semiconductor solutions, renowned for consistent innovation in embedded control systems. With over three decades of industry leadership, their products set standards for low-power operation and design flexibility across industrial, automotive, and consumer markets.

The company maintains rigorous quality certifications, ensuring components meet stringent reliability requirements. Microchip’s comprehensive development tools and long-term product lifecycle support make their ICs preferred solutions for mission-critical applications worldwide.

About Microcontrollers

Microcontrollers (MCUs) serve as compact computing engines in embedded systems, integrating processors, memory, and peripherals on a single chip. These devices execute programmed instructions to control electronic functions, replacing complex discrete circuitry with intelligent, cost-effective solutions. Modern MCUs enable precise management of sensors, actuators, and communication interfaces across countless applications.

8-bit MCUs like the 8051 family balance processing capability with power efficiency, making them ideal for real-time control tasks. Their simplicity accelerates development cycles while maintaining robustness in demanding environments—from factory automation to IoT edge devices.

Packaging Options

Available in protective Tube packaging for secure handling during prototyping and production. Contact PCX for volume-specific packaging solutions.

FAQs

Q: Is this MCU suitable for battery-powered devices?
A: Yes, its 4-6V operating range and low-power modes support battery applications.

Q: What development tools support this microcontroller?
A: Microchip provides the MPLAB® IDE and compatible programmers for the AT89C2051 family.

Q: Does it require external crystal components?
A: The internal oscillator eliminates need for external crystals at 24MHz operation.

Q: Can I reprogram this microcontroller after deployment?
A: Yes, the Flash memory supports in-circuit reprogramming via UART.

Q: What distinguishes 8051 architecture in modern designs?
A: Its simplicity enables rapid development and excellent code density for cost-driven applications.

Q: Are RoHS compliance documents available?
A: Yes, PCX provides full compliance certification with every order.

Disclaimer: Product images are representational. Refer to datasheet for exact dimensions.

Datasheet: Download Full Specifications

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