ATMEGA644P-20PU The Microchip Technology ATMEGA644P-20PU is an 8-bit AVR microcontroller featuring 64KB of Flash memory and operating at up to 20MHz. It offers 32 programmable I/O lines and a wide operating voltage range.
Mfr Part #:

ATMEGA644P-20PU

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology ATMEGA644P-20PU is an 8-bit AVR microcontroller featuring 64KB of Flash memory and operating at up to 20MHz. It offers 32 programmable I/O lines and a wide operating voltage range.
✓ Total Stock: 21,517 pcs

ATMEGA644P-20PU Available from 1 distributor

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21,517 pcs
21517 pcs On Request 1 On Request On Request 2020+ On Request On Request

ATMEGA644P-20PU Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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ATMEGA644P-20PU Description

Short technical summary and product information.

The ATMEGA644P-20PU is an 8-bit AVR microcontroller from Microchip Technology, built on an advanced RISC architecture. It provides 64KB of in-system self-programmable Flash memory and 4KB of internal SRAM, enabling efficient code execution with up to 20 MIPS throughput at 20MHz.

 

This microcontroller includes essential peripherals such as an 8-channel 10-bit ADC, six PWM channels, and multiple timer/counter modules. It supports various communication interfaces including I2C, SPI, and UART/USART, making it versatile for embedded system designs. The device operates within a voltage range of 2.7V to 5.5V and has an operating temperature range of -40°C to 85°C.

 

Packaged in a 40-pin DIP for through-hole mounting, the ATMEGA644P-20PU is suitable for applications requiring robust performance and a compact footprint. Its features include power-on reset, programmable brown-out detection, and multiple sleep modes for power optimization.

ATMEGA644P-20PU Quick Information

Product Type: Microcontroller
Series: ATmega
Canonical Name: ATMEGA644P-20PU 8-Bit AVR Microcontroller
Subcategory: 8-Bit AVR Microcontroller

ATMEGA644P-20PU Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected
Lead Free: Lead Free

ATMEGA644P-20PU Features

  • 8-bit AVR microcontroller architecture.
  • 64KB Flash program memory.
  • 4KB internal SRAM.
  • Operates at up to 20MHz.
  • Supports I2C, SPI, and UART/USART interfaces.

ATMEGA644P-20PU Applications

  • Embedded control systems
  • Motor control applications
  • Sensor data acquisition
  • Industrial automation
  • Consumer electronics

ATMEGA644P-20PU FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the ATMEGA644P-20PU?

The ATMEGA644P-20PU operates from 2.7V to 5.5V.

What package type is the ATMEGA644P-20PU available in?

The ATMEGA644P-20PU is available in a 40-PDIP package for through-hole mounting.

What is the operating temperature range for this microcontroller?

The operating temperature range is -40°C to 85°C.

What is the Flash memory size of the ATMEGA644P-20PU?

The ATMEGA644P-20PU has 64KB of Flash program memory.

What is the maximum operating frequency?

The maximum operating frequency is 20MHz.

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