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AT89LP51ID2-20JU

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AT89LP51ID2-20JU

IC MCU 8BIT 64KB FLASH 44PLCC

Manufacturer: Microchip Technology

Categories: Microcontrollers

Quality Control: Learn More

The Microchip Technology AT89LP51ID2-20JU is an 8-bit 8051 core microcontroller featuring 64KB of FLASH program memory and 2.25KB of RAM. This device operates at a maximum frequency of 20MHz and includes 40 general-purpose I/O pins. Connectivity options are extensive, supporting EBI/EMI, I2C, SPI, and UART/USART interfaces. On-chip peripherals include Brown-out Detect/Reset, POR, PWM, and WDT. The AT89LP51ID2-20JU also incorporates a 7-channel 10-bit Analog-to-Digital converter and 4KB of EEPROM. It is supplied in a 44-PLCC package suitable for surface mounting and operates within an industrial temperature range of -40°C to 85°C. This component is widely utilized in automotive, industrial automation, and consumer electronics applications.

Additional Information

Series: 89LPRoHS Status: ROHS3 CompliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDatasheet:
Technical Details:
PackagingTube
Package / Case44-LCC (J-Lead)
Mounting TypeSurface Mount
Speed20MHz
Program Memory Size64KB (64K x 8)
RAM Size2.25K x 8
Operating Temperature-40°C ~ 85°C (TA)
Oscillator TypeInternal
Program Memory TypeFLASH
EEPROM Size4K x 8
Core Processor8051
Data ConvertersA/D 7x10b
Core Size8-Bit
Voltage - Supply (Vcc/Vdd)2.4V ~ 5.5V
ConnectivityEBI/EMI, I2C, SPI, UART/USART
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
Supplier Device Package44-PLCC (16.6x16.6)
Number of I/O40
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

As a full line supplier, we specialize in sourcing obsolete and hard to find electronic components for your projects.

After we receive your request submission, one of our account executives will reach out to your team to gather more information about your project requirements and ensure we tailor the order to your needs.

Once requirements such as date codes, quantities, target prices, testing requirements, and more are discussed, our purchasing team will secure stock through Microchip USA’s direct access to manufacturing partners’ excess inventory lists.

Our operations teams will handle logistics and fulfillment to ensure supply chain continuity, and our support team will provide clear communication throughout the process.

Our net terms for electronic component sourcing are flexible and vary by order. Our account executives will work with you to ensure our terms meet your company’s needs. We also offer scheduled shipments and inventory management solutions to ensure a steady supply of electronic components, maintain cash flow, and maximize warranty periods. We always offer a warranty on all tested parts. See our sales terms and conditions for more information.

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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