What is the Additional Feature ?

Name: ATMEGA644PA-AU
Brand: Microchip Technology
SKU: ATMEGA644PA-AU
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

Cart ( )

lmages are for reference only See Product Specifications

Microchip Technology ATMEGA644PA-AU

Part No.:: ATMEGA644PA-AU

Manufacturer:: Microchip Technology

Package:: 44-TQFP

Datasheet:: ATMEGA644PA-AU.pdf

Description:: IC MCU 8BIT 64KB FLASH 44TQFP

In Stock:: 3699

Quantity:: Add To Cart

For more detailed including pricing and shipping

: Quick response, quick quotation

: Flash shipment, no worries after sales

: Original channel, guarantee of the authentic products

Please send RFQ , we will respond immediately.

Purchase and inquiry

ATMEGA644PA-AU Specifications

Package/Case:
44-TQFP
Packaging:
Tray
Series:
AVR® ATmega
RoHS:
RoHS
Speed:
20MHz
RAM Size:
4K x 8
Core Size:
8-Bit
EEPROM Size:
2K x 8
Part Status:
Active
Peripherals:
Brown-out Detect/Reset, POR, PWM, WDT
Connectivity:
I²C, SPI, UART/USART
Mounting Type:
Surface Mount
Number of I/O:
32
Core Processor:
AVR
Data Converters:
A/D 8x10b
Oscillator Type:
Internal
Program Memory Size:
64KB (32K x 16)
Program Memory Type:
FLASH
Operating Temperature:
-40°C ~ 85°C (TA)

ATMEGA644PA-AU this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including ATMEGA644PA-AU price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for ATMEGA644PA-AU to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

Purchase in icwhale.com

There is no doubt that you may place an order without registering to icwhale.com.

We strongly suggest you sign in our shop before purchasing as you can track your order real-time tracking.

Means of Payment in icwhale.com

For your convenience, we support multiple payment methods in USD, including PayPal, Credit Card, wire transfer. and Alipay.

RFQ (Request for Quotations) in icwhale.com

It is recommended to acquire for quotations to get the latest prices and inventories about the parts.

Our sales will reply to your request by email within 24 hours.

Warm reminder

1. You'll receive an order information email in your email inbox. (Please remember to check the spam folder if you didn't hear from us).

2. Since inventories and prices may fluctuate to some extent, the sales manager is going to reconfirm the order and let you know if there are any updates.

Shipping & Handling

Shipping fee starts at $35, but some countries will exceed $35. For example (South Africa, Brazil, India, Pakistan, Israel, etc.)

The basic freight (for package ≤0.5kg or corresponding volume) depends on the time zone and countries.

Shipping Method

Currently, our products are shipped through DHL, FedEx, SF, UPS and China Post.

Order Tracking for International Orders

Once your order has been shipped, the tracking number will be sent to the email address registered to your account. This information can also be viewed when logged into your account in the "my account" page.

ATMEGA644PA-AU information

Views：

ATMEGA644PA-AU Typical application Circuitry

ATMEGA644PA-AU

The ATMEGA644PA-AU is a powerful microcontroller unit (MCU) produced by Microchip. This guide focuses on detailed circuit connection specifics for the ATMEGA644PA-AU, connecting you to a comprehensive pin-by-pin setup.

1. Power Supply: VCC (pins 10 and 30) is the power supply pin and should be connected to a 5V source. Meanwhile, GND (pins 11 and 31) must be wired to the ground of your circuit. Adding a 100nF decoupling capacitor between VCC and GND near these pins is a recommended best practice.

2. Reset: The RESET pin (pin 29) is an active-low input. To ensure the MCU operates normally, wire a 10k ohm resistor from the RESET pin to VCC, creating a pull-up. You can enable a manual reset by connecting a normally open push button from the RESET pin to ground.

3. Crystal Oscillator: Connect a crystal oscillator across XTAL1 (pin 12) and XTAL2 (pin 13) for external clocking. To halt the oscillation, connect a capacitor from each of these pins to ground. Capacitance value varies based on the crystal's specifications, typically in the 12-22pF range.

4. I/O Pins: The ATMEGA644PA-AU offers numerous GPO pins that can be leveraged for different peripheral interfaces. Specific pin use is dependent on the task at hand.

5. SPI Programming Interface: SPI interface can be used for programming the ATMEGA644PA-AU. Connect the SPI interface to the SPI pins: SS (pin 4), MOST (pin 5), MISS (pin 6), and SCK (pin 7).

Be sure to handle all unused pins correctly to avert unwanted power consumption or unpredictable behavior of the ATMEGA644PA-AU MCU. You could, for example, set them up as input and turn on the inbuilt pull-up resistors.

This guide provides a foundation for integrating the ATMEGA644PA-AU into your circuit design, outlining the basics of power supply, reset, clocking, I/O, and programming. Yet, the ATMEGA644PA-AU incorporates various other features like ADC's, Parts, and timers, among others. You'll need to configure these based on your application's specifics.

ATMEGA644PA-AU FAQ

1. How to order ATMEGA644PA-AU on icwhale.com?

Currently, icwhale.com only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.

2. How does icwhale.com guarantee that ATMEGA644PA-AU is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the ATMEGA644PA-AU. All suppliers must pass our qualification reviews before they can publish their products including ATMEGA644PA-AU on icwhale.com; we pay more attention to the channels and quality of ATMEGA644PA-AU products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

3. Are the ATMEGA644PA-AU price and inventory displayed accurate?

The price and inventory of ATMEGA644PA-AU fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

4. What forms of payment are accepted?

Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

Warm Tips: Some orders in certain payment forms may require handling fee.

5. How is the shipping arranged?

Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

6. What is the process for return or replacement of ATMEGA644PA-AU?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the ATMEGA644PA-AU we delivered, we will accept the replacement or return of the ATMEGA644PA-AU only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of ATMEGA644PA-AU.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations