The AT89S8252-24PU is a high-performance 8-bit microcontroller based on the enhanced 8051 architecture. Manufactured by Atmel, it features 8KB of Flash memory, 2KB of EEPROM, and 256 bytes of RAM. This microcontroller is designed for applications requiring non-volatile memory, in-system programmability, and versatile I/O capabilities. The 24PU indicates the speed grade (24MHz) and package type (Plastic Dual In-line Package).

Applications

• Embedded Control Systems
• Industrial Automation
• Motor Control
• Security Systems
• Smart Card Readers
• Consumer Electronics

Features

• 8KB of In-System Programmable Flash Memory
• 2KB of EEPROM
• 256 Bytes of RAM
• 32 Programmable I/O Lines
• Three 16-bit Timer/Counters
• Full Duplex UART Serial Channel
• Programmable Watchdog Timer
• SPI Serial Interface
• Low-Power Idle and Power-Down Modes

Benefits

• Flexible Memory Configuration: The combination of Flash and EEPROM allows for both program storage and data logging capabilities.
• In-System Programmability: Flash memory can be programmed and erased in-system, allowing for easy firmware updates.
• Versatile I/O: 32 programmable I/O lines provide flexibility for interfacing with various peripherals and sensors.
• Reliable Operation: The watchdog timer ensures reliable operation in harsh environments.
• Low Power Consumption: Idle and power-down modes minimize power consumption, extending battery life.

Additional Details

The AT89S8252-24PU operates at a maximum clock frequency of 24 MHz. It includes a SPI serial interface, allowing communication with other SPI-compatible devices. The microcontroller also features a programmable watchdog timer to ensure reliable system operation. The EEPROM can be used to store configuration parameters, calibration data, or other non-volatile data that needs to be retained even when power is removed. While a robust part, be mindful that this component is listed as End of Life. Consider upgrading to similar, but more current, microcontrollers for new product designs.