myMectronic
myMectronic

A Premier B2B Part Search

Microchip Technology AT89LP644020AU High-Performance Microcontroller

The AT89LP6440 is a high-performance, low-power 8-bit microcontroller based on an enhanced 8051 architecture. Equipped with 64KB Flash memory, 8KB RAM, multiple 16-bit timers, advanced serial interfaces including UART, SPI, and TWI, as well as dual analog comparators and a 10-bit ADC/DAC, it supports sophisticated control and signal processing applications. Features include in-system programming, comprehensive power management modes, extensive I/O options, and robust system security with lock bits and fuse settings. Ideal for industrial automation, embedded control, and digital signal processing, the device ensures reliable operation with extensive configuration options and high-speed performance.

Authorized Distributors
Source:Newark
Part No:AT89LP6440-20AU
Stock:123
Inv Date:06-03-2026
Price: Unit price: $8.29
Buy/RFQ:
Source:DigiKey
Part No:AT89LP6440-20AU
Stock:505
Inv Date:06-03-2026
Price: Unit price: $11.7
Buy/RFQ:
Part No:AT89LP6440-20AU
Stock:437
Inv Date:06-04-2026
Price: Unit price: $11.7
Buy/RFQ:
Part No:AT89LP6440-20AU
Stock:37
Inv Date:06-03-2026
Price: Unit price: $8.93
Buy/RFQ:
Part No:AT89LP6440-20AU
Stock:37
Inv Date:06-03-2026
Price: Unit price: $8.93
Buy/RFQ:
Part No:AT89LP6440-20AU
Stock:0
Inv Date:06-03-2026
Price: Unit price: $9.83
Buy/RFQ:

Microchip Technology AT89LP644020AU High-Performance Microcontroller Specifications:

  • Core: 8051 compatible with enhanced architecture
  • Memory: 64KB Flash program memory, 8KB RAM
  • I/O Pins: Up to 38 configurable ports
  • Timers: Three 16-bit Timer/Counters with PWM and capture modes
  • Serial Interfaces: UART, SPI, Two-Wire Serial (I2C)
  • ADC/DAC: 10-bit ADC with 8 input channels, 10-bit DAC
  • Analog Comparators: Two, with selectable inputs and interrupt capabilities
  • Power Modes: Idle, Power-down, adjustable wake-up sources
  • Clock: Internal RC oscillator, external crystal or clock input, system clock divider
  • Security: Lock bits, fuse programming for security options
  • In-System Programming: Supports serial SPI and parallel interfaces
  • Package: 44-lead TQFP, PDIP, PLCC, VQFN
  • Operating Voltage: 2.4V to 3.6V
  • Temperature Range: -40°C to +85°C
  • Endurance: 100,000+ write/erase cycles for Flash
  • Certification: UL, CSA listed for industrial safety

Buy the Atmel AT89LP6440 Reliable Microcontroller for Industrial Applications

Purchase the Atmel AT89LP6440 microcontroller online today for your embedded control projects. Featuring 64KB Flash, 8KB RAM, multiple serial interfaces, and flexible power modes, it is ideal for industrial automation, signal processing, and control systems. With robust security options, extensive I/O configurations, and in-system programming support, this device offers reliable, high-speed operation and easy integration. Take advantage of fast delivery and expert support—order now to enhance your embedded applications with the AT89LP6440, the trusted choice for demanding industrial environments.

Get Atmel AT89LP6440 today—built for high-speed and energy-efficient embedded control in industrial automation.

Frequently Asked Questions

Where can I buy Microchip Technology AT89LP644020AU?

You can click on the BUY or RFQ button to purchase AT89LP644020AU from an authorized Microchip Technology distributor.

How do I troubleshoot issues or seek technical support for part AT89LP644020AU?

You can download the AT89LP644020AU datasheet or visit the Microchip Technology website for support.

Who is the manufacturer of AT89LP644020AU?

Microchip Technology

Microchip Technology Part List

Browse and search other Microchip Technology parts, locate datasheets and stock

Sponsored by