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AT89C2051-24SJ

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AT89C2051-24SJ

IC MCU 8BIT 2KB FLASH 20SOIC

Manufacturer: Microchip Technology

Categories: Microcontrollers

Quality Control: Learn More

The Microchip Technology AT89C2051-24SJ is an 8-bit microcontroller from the 89C series. This device features a 24MHz 8051 core, offering 2KB of FLASH program memory and 128 bytes of RAM. It is housed in a 20-SOIC package with a surface mount type and a width of 7.50mm. Connectivity includes a UART/USART, and the component provides 15 I/O pins. Peripherals include LED capabilities. Operating across a temperature range of -40°C to 85°C (TA), this microcontroller is suitable for applications requiring a compact and efficient 8051 architecture. The AT89C2051-24SJ operates on a supply voltage of 4V to 6V.

Additional Information

Series: 89CRoHS Status: RoHS non-compliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDatasheet:
Technical Details:
PackagingTube
Package / Case20-SOIC (0.295"", 7.50mm Width)
Mounting TypeSurface Mount
Speed24MHz
Program Memory Size2KB (2K x 8)
RAM Size128 x 8
Operating Temperature-40°C ~ 85°C (TA)
Oscillator TypeInternal
Program Memory TypeFLASH
EEPROM Size-
Core Processor8051
Data Converters-
Core Size8-Bit
Voltage - Supply (Vcc/Vdd)4V ~ 6V
ConnectivityUART/USART
PeripheralsLED
Supplier Device Package20-SOIC
Number of I/O15
ProgrammableNot Verified

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Microcontroller FAQs

A microcontroller is a compact integrated circuit that combines a processor, memory, and input/output peripherals for embedded control applications.

Microcontrollers execute programmed instructions to process sensor inputs and control outputs such as motors, displays, and communication interfaces.

Microcontrollers are commonly used in:

  • Automotive systems
  • Robotics
  • IoT devices
  • Industrial automation
  • Household appliances
  • Smart electronics

Microcontrollers integrate memory and peripherals on-chip for dedicated tasks, while microprocessors are designed for higher-performance computing systems requiring external components.

Frequently Asked Questions

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We partner with industry-leading AS6171 & AS6081-certified third party testing labs to mitigate risk and support a wide array of end uses for your company’s requirements. Testing includes but isn’t limited to: Decapsulation & Internal Dye Verification. X-Ray Inspection & Analysis, External Visual Inspection, Surface Texture Analysis (SEM), and Electrical Pin Correlation.

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