AT89S8253 8-Bit Microcontroller, SMD, 12KB Flash, 24MHz

The AT89S8253-24AU is a high-performance 8-bit CMOS microcontroller that combines a versatile CPU with In-System Programmable (ISP) flash memory on a single chip. Manufactured using Atmel's high-density non-volatile memory technology, this device offers a cost-effective and flexible solution for a wide range of embedded control applications.

With 12kB of ISP flash program memory and 2kB of EEPROM data memory, this microcontroller provides ample storage for complex programs and data. It is fully compatible with the industry-standard MCS-51 instruction set and pinout, ensuring seamless integration into existing designs. The on-chip downloadable flash can be reprogrammed in-system via an SPI serial interface or through a conventional non-volatile memory programmer, offering great development flexibility.

Key Features and Benefits

• Versatile I/O and Peripherals: Includes 32 programmable I/O lines, three 16-bit timers/counters, and nine interrupt sources, providing robust control and timing capabilities.
• Enhanced Communication Interfaces: Features an enhanced UART serial port with framing error detection and automatic address recognition, plus an enhanced SPI (double write/read buffered) interface for efficient data transfer.
• Advanced Power Management: Supports low-power idle and power-down modes, with interrupt recovery from power-down mode, helping to reduce energy consumption in battery-powered applications.
• High Reliability and Security: Three-level program memory lock and a programmable watchdog timer enhance system security and reliability.
• Flexible Programming Options: Includes dual data pointer, power-off flag, and flexible ISP programming in byte or page mode, simplifying firmware updates and debugging.

Specifications Summary

• MCU Family: 8051
• MCU Series: AT89S8253
• Operating Frequency Max: 24MHz
• **Programme