IC AT89S52 8-bit MCU CISC 40-pin DIP

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$4.95 ea

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  • Jameco Part no.: 662637
  • Manufacturer: Atmel (Microchip)
  • Manufacturer no.: AT89S52-24PU
  • HTS code: 8542310000
  • Web Exclusive
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8-bit Microcontroller with 8kB In-System Programmable Flash

The AT89S52 is a low-power, high-performance CMOS 8-bit microcontroller with 8K bytes of in-system programmable Flash memory. The device is manufactured using Atmel's high-density nonvolatile memory technology and is compatible with the industry- standard 80C51 instruction set and pinout. The on-chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with in-system programmable Flash on a monolithic chip, the Atmel AT89S52 is a powerful microcontroller which provides a highly-flexible and cost-effective solution to many embedded control applications.


  • Compatible with MCS-51® Products
  • 8K Bytes of In-System Programmable (ISP) Flash Memory
    • Endurance: 1000 Write/Erase Cycles
  • 4.0V to 5.5V Operating Range
  • Fully Static Operation: 0 Hz to 24 MHz
  • Three-level Program Memory Lock
  • 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
  • Interrupt Recovery from Power-down Mode
  • Watchdog Timer
  • Dual Data Pointer
  • Power-off Flag
  • 40-pin PDIP package

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Specification Value
Maximum Speed24 MHz
Device Core8051
Instruction Set ArchitectureCISC
Maximum Clock Frequency24MHz
Data Bus Width8Bit
Number of Programmable I/Os32
Number of Timers3
Program Memory Size8KB
Program Memory TypeFlash
RAM Size256Byte
Interface TypeUART
Minimum Input Voltage4V
Input Voltage5V
Maximum Input Voltage5.5V
Minimum Operating Temperature-40°C
Maximum Operating Temperature85°C
Screening LevelIndustrial
MountingThrough Hole
Width13.97 mm
Height4.83 mm - 0.38 mm (Min)
Length52.58 mm
Product TypeMicrocontroller

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