ATMEGA644P-20AU The Atmel ATMEGA644P-20AU is an 8-bit AVR microcontroller offering high performance and low power consumption. It features 64KB of Flash memory and operates at speeds up to 20MHz.
Mfr Part #:

ATMEGA644P-20AU

Available from 1 distributors
Mfr Name: Atmel
Atmel
The Atmel ATMEGA644P-20AU is an 8-bit AVR microcontroller offering high performance and low power consumption. It features 64KB of Flash memory and operates at speeds up to 20MHz.
✓ Total Stock: 13 pcs
$ Price Range: $2.50

ATMEGA644P-20AU Available from 1 distributor

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✓ Non-Authorised
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ATMEGA644P-20AU Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Manufacturer Name
Architecture
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Operating Voltage

ATMEGA644P-20AU Description

Short technical summary and product information.

The Atmel ATmega644P/V is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. It achieves high throughput with single clock cycle execution, allowing designers to optimize for power consumption versus processing speed. This device features 64KB of in-system self-programmable Flash program memory, 2KB of EEPROM, and 4KB of internal SRAM.

 

Key peripherals include two 8-bit timer/counters, one 16-bit timer/counter, six PWM channels, and an 8-channel 10-bit ADC. Communication interfaces include a 2-wire serial interface (I2C compatible), two programmable serial USARTs, and one Master/Slave SPI serial interface. The microcontroller operates from 2.7V to 5.5V and supports speed grades up to 20MHz.

 

Available in a 44-lead TQFP package, the ATMEGA644P-20AU is suitable for various embedded applications requiring efficient processing and a range of I/O capabilities. Its advanced RISC architecture and picoPower technology enable optimized power consumption for battery-operated devices.

ATMEGA644P-20AU Quick Information

Product Type: Microcontroller
Series: ATmega644P/V
Canonical Name: ATmega644P 8-bit AVR Microcontroller
Subcategory: 8-bit AVR

ATMEGA644P-20AU Compliance

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

ATMEGA644P-20AU Estimated Pricing

Qty Low High
1+ $2.50 $2.50

Estimated market price range - modelled values for guidance only, not live distributor offers.

ATMEGA644P-20AU Features

  • High performance 8-bit AVR RISC architecture.
  • 64KB in-system self-programmable Flash memory.
  • Up to 20 MIPS throughput at 20MHz.
  • 8-channel 10-bit Analog-to-Digital Converter.
  • Multiple serial interfaces including I2C, USART, and SPI.

ATMEGA644P-20AU Applications

  • Embedded control systems.
  • Industrial automation.
  • Consumer electronics.
  • IoT devices.
  • Data acquisition systems.

ATMEGA644P-20AU FAQs

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

The operating voltage for the ATmega644P is 2.7V to 5.5V.

What is the maximum speed grade of the ATMEGA644P-20AU?

The ATMEGA644P-20AU has a speed grade of 20MHz.

How much Flash memory does the ATMEGA644P-20AU have?

The ATMEGA644P-20AU has 64KB of in-system self-programmable Flash program memory.

What are the available serial interfaces on the ATMEGA644P-20AU?

The ATMEGA644P-20AU features a 2-wire serial interface (I2C compatible), two programmable serial USARTs, and one Master/Slave SPI serial interface.

How many I/O lines are available on the ATMEGA644P-20AU?

There are 32 programmable I/O lines available on the ATMEGA644P-20AU.

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