AT89C52-24AI

Microcontrollers Overview

The AT89C52-24AI is a low-power, high-performance CMOS 8-bit microcomputer manufactured by Microchip Technology. It features an 8K-byte In-System Reprogrammable Flash memory array with 1,000 write/erase cycle endurance and 256 bytes of internal RAM. The device operates at frequencies up to 24 MHz in fully static mode and supports a supply voltage range of 4.0V to 5.5V. It includes 32 programmable I/O lines, three 16-bit timer/counters, eight interrupt sources, and a programmable serial channel. Designed for industrial applications, it functions within a temperature range of -40°C to +85°C and utilizes a 44-pin TQFP package.

Microcontrollers Feature Summary

• Compatible with industry-standard MCS-51 instruction set and pinout
• Supports in-system reprogrammable Flash memory for flexible code updates
• Enables low-power operation through software-selectable Idle and Power-down modes
• Provides versatile peripheral integration including multiple timers and serial communication channels

Microcontrollers Applications

• Embedded control systems requiring reliable data processing
• Industrial automation and monitoring equipment
• Consumer electronics utilizing standard 8051 architecture
• Smart metering and instrumentation devices

Microcontrollers Procurement Notes

Verify the specific ordering suffix 'AI' against official Microchip documentation to confirm the exact package type and temperature grade. Ensure compatibility with existing PCB footprints for the 44-pin configuration. Confirm that the component meets all required environmental standards for the intended deployment location before finalizing procurement orders.

Microcontrollers Selection Notes

Select this component when a robust 8-bit solution with substantial onboard Flash storage is required. It is suitable for designs needing extensive I/O capabilities and precise timing control via multiple 16-bit counters. Consider its static operation capability for applications demanding zero-frequency stability during specific operational states.

Microcontrollers Part Context

This microcontroller belongs to the AT89 series, representing Atmel's high-density nonvolatile memory technology integrated with a standard 8051 core. It serves as a cost-effective alternative to traditional EPROM-based solutions, allowing for easier field updates and reduced development cycles compared to older fixed-program memory architectures.

Microcontrollers Replacement Considerations

Microchip recommends using the AT89S52 as a direct replacement for new designs. Verify pin compatibility and ensure that any differences in programming voltage requirements or lock bit configurations are addressed during the transition process.

Microcontrollers FAQ

How does the AT89C52 handle power consumption during inactivity?

The device supports two software-selectable power-saving modes: Idle Mode, which stops the CPU but keeps peripherals active, and Power-down Mode, which freezes the oscillator and saves RAM contents until a hardware reset occurs.

What is the maximum operating frequency for this component?

The AT89C52 supports fully static operation with a maximum clock frequency of 24 MHz, allowing for efficient processing speeds while maintaining low power consumption.