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:
| Product Attribute | Attribute Value |
| Manufacturer: | Microchip |
| Product Category: | 8-bit Microcontrollers – MCU |
| Core: | 8051 |
| Program Memory Size: | 8 kB |
| Data RAM Size: | 256 B |
| Package/Case: | PDIP-40 |
| Maximum Clock Frequency: | 24 MHz |
| ADC Resolution: | No ADC |
| Number of I/Os: | 32 I/O |
| Supply Voltage – Min: | 4 V |
| Supply Voltage – Max: | 5.5 V |
| Mounting Style: | Through Hole |
| Data Bus Width: | 8 bit |
| Minimum Operating Temperature: | – 40 C |
| Maximum Operating Temperature: | + 85 C |
| Series: | 89S |
| Interface Type: | UART |
| Number of Timers/Counters: | 3 Timer |
| Processor Series: | AT89x |
| Product: | MCUs |
| Product Type: | 8-bit Microcontrollers – MCU |
| Program Memory Type: | Flash |
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
