All Products


32KB 16K x 16 FLASH AVR 8-Bit Microcontroller AVR? ATmega Series ATMEGA328P 32 Pin 20MHz 5V 32-TQFP

  • Manufacturer: Microchip Technology
  • Origchip NO: 536-ATMEGA328P-AU
  • Package: 32-TQFP
  • Datasheet: PDF
  • Stock: -136
  • Description: 32KB 16K x 16 FLASH AVR 8-Bit Microcontroller AVR? ATmega Series ATMEGA328P 32 Pin 20MHz 5V 32-TQFP (Kg)

Purchase & Inquiry



You may place an order without registering to XINJIADA.
We strongly suggest you sign in before purchasing as you can track your order in real time.

Means of Payment

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

RFQ (Request for Quotations)

It is recommended to request for quotations to get the latest prices and inventories about the part.
Our sales will reply to your request by email within 24 hours.


1. You'll receive an order information email in your 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 Cost

Shipping starts at $40, but some countries will exceed $40. 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 country.

Shipping Method

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

Delivery Time

Once the goods are shipped, estimated delivery time depends on the shipping methods you chose:

FedEx International, 5-7 business days.

The following are some common countries' logistic time.



Factory Lead Time 6 Weeks
Mount Surface Mount
Mounting Type Surface Mount
Package / Case 32-TQFP
Number of Pins 32
Operating Temperature -40°C~85°C TA
Packaging Tray
Published 1997
Series AVR® ATmega
JESD-609 Code e3
Pbfree Code yes
Part Status Active
Moisture Sensitivity Level (MSL) 3 (168 Hours)
Number of Terminations 32
Terminal Finish Matte Tin (Sn) - annealed
Subcategory Microcontrollers
Technology CMOS
Terminal Position QUAD
Terminal Form GULL WING
Peak Reflow Temperature (Cel) 260
Supply Voltage 5V
Frequency 20MHz
Time@Peak Reflow Temperature-Max (s) 40
Base Part Number ATMEGA328P
Supply Voltage-Max (Vsup) 5.5V
Power Supplies 2/5V
Supply Voltage-Min (Vsup) 4.5V
Interface 2-Wire, I2C, SPI, UART, USART
Memory Size 32kB
Oscillator Type Internal
Number of I/O 23
RAM Size 2K x 8
Voltage - Supply (Vcc/Vdd) 1.8V~5.5V
Core Processor AVR
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Program Memory Type FLASH
Core Size 8-Bit
Program Memory Size 32KB 16K x 16
Connectivity I2C, SPI, UART/USART
Supply Current-Max 9mA
Bit Size 8
Data Converter A/D 8x10b
Watchdog Timer Yes
DMA Channels NO
Data Bus Width 8b
Number of Timers/Counters 3
EEPROM Size 1K x 8
Number of A/D Converters 1
Number of ADC Channels 8
Number of PWM Channels 6
Height 1.2mm
Length 7mm
Width 7mm
Radiation Hardening No
RoHS Status ROHS3 Compliant
Lead Free Lead Free

ATMEGA328P-AU Overview

For the purpose of saving space, it is available in the 32-TQFP package. Surface Mount is used for mounting. You can find it in the package of Tray. AVR core processor is present on the device. Work should be done at -40°C~85°C TA. FLASH has been assigned to it as a program memory. 23 I/Os can be found on it. To find equivalent components, use its ATMEGA328P base part number. At QUAD, it has its terminals. It consists of 32 terminationals. The AVR? ATmega series contains this electrical component. The 5V supply voltage enables high efficiency. As for the uPs/uCs/peripheral ICs, this gadget has MICROCONTROLLER, RISC. It is constructed using 32 pins. It is mounted based on the method of Surface Mount. It belongs to the subcategory Microcontrollers. Data and programs may be stored on the devices which have a memory size of 32kB. It is important to note that the maximum supply current is 9mA. Power comes from a source of 2/5V. When working at a frequency of 20MHz it is able to achieve excellent efficiency. The number of timers and counters is 3. A supply voltage (Vsup) above 4.5V is necessary for normal operation. Using oscillator type Internal makes it work.

ATMEGA328P-AU Features

32-TQFP package
Mounting type of Surface Mount
Microcontrollers subcategory

ATMEGA328P-AU Applications

There are a lot of Microchip Technology ATMEGA328P-AU Microcontroller applications.

  • Fax machines
  • Embedded gateways
  • Routers
  • Binding machines
  • Electronic jamming systems
  • Data acquisition and control
  • Dialysis machines (performs function of liver)
  • Entertainment products
  • Glucose monitoring systems (for Type 1 Diabetes)
  • Heater/Fan
How can we help you?