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R5F64189HDFD The Microchip Technology ATMEGA644P-20AQR is an 8-bit AVR microcontroller with 64KB of FLASH program memory and 4KB of RAM. It operates at speeds up to 20MHz.
Mfr Part #:

R5F64189HDFD

Available from 1 distributors
Mfr Name: Renesas
Renesas
The Microchip Technology ATMEGA644P-20AQR is an 8-bit AVR microcontroller with 64KB of FLASH program memory and 4KB of RAM. It operates at speeds up to 20MHz.
✓ Total Stock: 1,096 pcs
$ Price Range: $5.52

R5F64189HDFD Available from 1 distributor

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✓ Non-Authorised
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Romaks Technologies ✓
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1,096 pcs
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R5F64189HDFD Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Connectivity
Core Processor
Core Size
Data Converters
EEPROM Size
Failure Rate
Mounting Type
Number of I/O
Operating Temperature
Oscillator Type
Peripherals
Program Memory Size
Program Memory Type
RAM Size
SVHC Present
Speed
Voltage Supply
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R5F64189HDFD Description

Short technical summary and product information.

The ATMEGA644P-20AQR is an 8-bit microcontroller from Microchip Technology, based on the AVR architecture. It features 64KB of FLASH program memory and 2KB of EEPROM, along with 4KB of RAM.

 

This device operates within a supply voltage range of 2.7V to 5.5V and can achieve speeds of up to 20MHz. It offers 32 general-purpose I/O pins and includes peripherals such as Brown-out Detect/Reset, POR, PWM, and WDT. The internal oscillator type simplifies design.

 

Packaged in a 44-TQFP (10x10 mm) format, the ATMEGA644P-20AQR is designed for surface mounting. Its connectivity options include I2C, SPI, and UART/USART, making it suitable for a variety of embedded applications. The integrated A/D converter has 8 channels with 10-bit resolution.

R5F64189HDFD Quick Information

Product Type: Microcontroller
Series: AVR® ATmega
Canonical Name: ATMEGA644P-20AQR Microcontroller
Subcategory: Embedded Microcontroller

R5F64189HDFD Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 3 (168 Hours)
REACH Status: REACH Unaffected

R5F64189HDFD Estimated Pricing

Qty Low High
1+ $5.52 $5.52

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

R5F64189HDFD Features

  • 8-bit AVR microcontroller with 64KB FLASH memory.
  • Operates at speeds up to 20MHz.
  • Wide supply voltage range of 2.7V to 5.5V.
  • Features 32 I/O pins and multiple peripherals.
  • Surface mountable in a 44-TQFP package.

R5F64189HDFD Applications

  • Suitable for general-purpose embedded control.
  • Ideal for applications requiring I2C, SPI, or UART.
  • Used in systems needing 32 I/O lines.
  • Designed for devices with 2.7V to 5.5V power.
  • Applicable in moderate to high-speed processing tasks.

R5F64189HDFD FAQs

7 frequently asked questions generated from this part’s specifications.
What is the program memory type and size for the ATMEGA644P-20AQR?

The ATMEGA644P-20AQR has 64KB of FLASH program memory.

What is the operating voltage range for the ATMEGA644P-20AQR?

The ATMEGA644P-20AQR operates with a supply voltage between 2.7V and 5.5V.

What is the maximum operating speed of the ATMEGA644P-20AQR?

The ATMEGA644P-20AQR can operate at speeds up to 20MHz.

What is the operating temperature range for this microcontroller?

The operating temperature range is -40°C to 105°C.

How many I/O pins does the ATMEGA644P-20AQR have?

The ATMEGA644P-20AQR has 32 I/O pins.

What package type is the ATMEGA644P-20AQR supplied in?

The ATMEGA644P-20AQR is supplied in a 44-TQFP package.

What are the connectivity options for the ATMEGA644P-20AQR?

Connectivity options include I2C, SPI, and UART/USART.

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