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Name: ATMEGA328-AUR
Brand: Microchip Technology
SKU: ATMEGA328-AUR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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

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Microchip Technology ATMEGA328-AUR

Part No.:: ATMEGA328-AUR

Manufacturer:: Microchip Technology

Package:: 32-TQFP

Datasheet:: ATMEGA328-AUR.pdf

Description:: IC MCU 8BIT 32KB FLASH 32TQFP

In Stock:: 3753

Quantity:: Add To Cart

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ATMEGA328-AUR Specifications

Package/Case:
32-TQFP
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
AVR® ATmega
RoHS:
RoHS
Speed:
20MHz
RAM Size:
2K x 8
Core Size:
8-Bit
EEPROM Size:
1K 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:
23
Core Processor:
AVR
Data Converters:
A/D 8x10b
Oscillator Type:
Internal
Program Memory Size:
32KB (16K x 16)
Program Memory Type:
FLASH
Operating Temperature:
-40°C ~ 85°C (TA)

ATMEGA328-AUR this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including ATMEGA328-AUR 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 ATMEGA328-AUR to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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ATMEGA328-AUR information

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ATMEGA328-AUR Typical application Circuitry

The ATMEGA328-AUR is an 8-bit AVR RISC-based microcontroller that is highly popular in the electronics hobbyist community, notably as the heart of Arduino boards. With its 32 KB Flash memory, 2 KB SRAM, and a suite of versatile peripherals, it's a goto choice for a wide variety of applications.

Typical Applications

- Hobbyist Projects

- Home Automation

- Industrial Controls

- Sensor Data Collection

- Robotics

Key Specifications

- Architecture: 8-bit AVR

- Clock Speed: Up to 20 MHz

- Flash Memory: 32 KB

- SRAM: 2 KB

- GPIO Pins: 23

- ADC: 6 channels, 10-bit

- Power Supply Range: 1.8V - 5.5V

Application Scenario: Basic Home Automation System

Required Components:

- ATMEGA328-AUR Microcontroller

- Relays (for controlling devices)

- PIR Sensor (for motion detection)

- Push-buttons (for manual override)

- LEDs (for status indication)

Detailed Circuit Arrangement

1. Power Connections

- VCC (Pin 7) and AVCC (Pin 20): Both pins should be connected to a regulated 5V power supply.

- GND (Pins 8 and 22): Both pins need to be tied to the ground of the circuit.

2. Clock Source

- XTAL1 (Pin 9) and XTAL2 (Pin 10): Attach a 16MHz crystal between these pins. Add 22pF capacitors from each of these pins to ground.

3. Relay Control

- PD0 (Pin 14) and PD1 (Pin 15): Use these pins to control two relays, which in turn control two different appliances. Include a flyback diode and a transistor for each relay control.

4. PIR Sensor Input

- PC0 (Pin 23): Connect this pin to the output of a PIR motion sensor. Add a pull-down resistor to ensure a known logic level when the sensor is inactive.

5. Button Inputs

- PB0 (Pin 12) and PB1 (Pin 13): Connect push-buttons to these pins for manual control of appliances. Include pull-up resistors to ensure that the microcontroller reads a stable signal.

6. Status LEDs

- PD6 (Pin 20) and PD7 (Pin 21): Connect LEDs through 330-ohm resistors to these pins for indicating the state of the appliances.

Design Considerations

1. Power Stability: Make sure the 5V supply for the ATMEGA328-AUR is stable to ensure reliable operation.

2. Input Debouncing: Mechanical buttons tend to bounce; implement software debouncing to prevent false triggering.

3. EMI Considerations: Since relays are being used, care should be taken to minimize electromagnetic interference, which could potentially cause issues for the ATMEGA328-AUR.

4. Code Storage: With 32 KB of flash memory on ATMEGA328-AUR, it's usually ample for home automation purposes, but keep an eye on code size nonetheless.

5. Safety: When interfacing with mains-connected devices via relays, make sure to adhere to safety guidelines to prevent electrical hazards.

With the ATMEGA328-AUR as its cornerstone, creating a rudimentary home automation system becomes a straightforward task. However, designers should still pay attention to power, input, and environmental conditions to make the most out of this chip's capabilities.

ATMEGA328-AUR FAQ

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3. Are the ATMEGA328-AUR price and inventory displayed accurate?

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6. What is the process for return or replacement of ATMEGA328-AUR?

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 ATMEGA328-AUR we delivered, we will accept the replacement or return of the ATMEGA328-AUR 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 ATMEGA328-AUR.

(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