AT89S52-24PU 8KB 4V~5.5V 256Byte 24MHz FLASH 32 DIP-40 Microcontroller IC

AT89S52-24PU 8KB 4V~5.5V 256Byte 24MHz FLASH 32 DIP-40 Microcontroller IC

The AT89S52-24PU is a high-performance, low-power CMOS 8-bit microcontroller from Atmel, built around an 80C51 core. It is fully compatible with the industry-standard MCS-51 instruction set and pinout, making it a versatile and easy-to-upgrade solution for existing designs. This microcontroller is manufactured using Atmel’s high-density nonvolatile memory technology, integrating a powerful 8-bit CPU with programmable Flash memory on a single monolithic chip. This integration provides a highly-flexible and cost-effective foundation for a wide range of embedded control applications.

At the heart of the device is 8KB of In-System Programmable (ISP) Flash memory, which allows the program memory to be reprogrammed in-circuit or by a conventional programmer, offering immense flexibility during development and production. The chip also contains 256 bytes of internal RAM for data storage and operation. It supports a fully static operation mode from 0 Hz up to 24 MHz, enabling designs to optimize for power consumption by scaling the clock speed down to a complete halt without losing data.

The microcontroller is equipped with a rich set of integrated peripherals, including 32 programmable I/O lines, three 16-bit timer/counters, a full-duplex UART serial channel, and a watchdog timer. It also supports advanced power management through two software-selectable power-saving modes: Idle Mode, where the CPU is halted while peripherals remain active, and Power-down Mode, which freezes the oscillator to minimize energy consumption until the next interrupt or reset, making it suitable for battery-powered applications.

Features:

• Compatible with MCS-51 Products.
• 8K Bytes of In-System Programmable (ISP) Flash Memory.
• Endurance: 10,000 Write/Erase Cycles.
• 4.0V to 5.5V Operating Range.
• Fully Static Operation: 0 Hz to 24 MHz.
• 256 x 8-bit Internal RAM.
• 32 Programmable I/O Lines.
• Three 16-bit Timer/Counters.
• Eight Interrupt Sources.
• Full Duplex UART Serial Channel.
• Low-power Idle and Power-down Modes.
• Watchdog Timer.
• Dual Data Pointer.
• Power-off Flag.

Specifications:

Pinout Diagram:

Footprint Diagram:

Applications:

• Embedded Control Systems.
• Automotive Control.
• Industrial Automation.
• Power Tools.
• Consumer Electronics.

Package Contents:

• 1x AT89S52-24PU 8KB 4V~5.5V 256Byte 24MHz FLASH 32 DIP-40 Microcontroller IC

Datasheet