All Products


128KB 64K x 16 FLASH AVR 8-Bit Microcontroller AVR? ATmega Series ATMEGA128A 64 Pin 16MHz 5V 64-TQFP

  • Manufacturer: Microchip Technology
  • Origchip NO: 536-ATMEGA128A-AU
  • Package: 64-TQFP
  • Datasheet: PDF
  • Stock: 603
  • Description: 128KB 64K x 16 FLASH AVR 8-Bit Microcontroller AVR? ATmega Series ATMEGA128A 64 Pin 16MHz 5V 64-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 7 Weeks
Contact Plating Tin
Mount Surface Mount
Mounting Type Surface Mount
Package / Case 64-TQFP
Number of Pins 64
Operating Temperature -40°C~85°C TA
Packaging Tray
Published 2003
Series AVR® ATmega
JESD-609 Code e3
Pbfree Code yes
Part Status Active
Moisture Sensitivity Level (MSL) 3 (168 Hours)
Number of Terminations 64
Termination SMD/SMT
Subcategory Microcontrollers
Technology CMOS
Terminal Position QUAD
Terminal Form GULL WING
Peak Reflow Temperature (Cel) 260
Supply Voltage 5V
Frequency 16MHz
Time@Peak Reflow Temperature-Max (s) 40
Base Part Number ATMEGA128A
Voltage 5V
Memory Size 128kB
Oscillator Type Internal
Number of I/O 53
RAM Size 4K x 8
Voltage - Supply (Vcc/Vdd) 2.7V~5.5V
Core Processor AVR
Peripherals Brown-out Detect/Reset, POR, PWM, WDT
Program Memory Type FLASH
Core Size 8-Bit
Program Memory Size 128KB 64K x 16
Connectivity EBI/EMI, I2C, SPI, UART/USART
Bit Size 8
Data Converter A/D 8x10b
Watchdog Timer Yes
DMA Channels NO
Data Bus Width 8b
PWM Channels YES
Number of Timers/Counters 4
Density 1 Mb
EEPROM Size 4K x 8
Number of UART Channels 2
Number of ADC Channels 8
Number of I2C Channels 1
Height 1.05mm
Length 14.1mm
Width 14.1mm
Radiation Hardening No
RoHS Status ROHS3 Compliant
Lead Free Lead Free

ATMEGA128A-AU Overview

For space savings, it is available in the 64-TQFP package. Mounted using Surface Mount. It comes in a Tray package. Devices with AVR core processors are available. When working, it is recommended that the temperature be kept at -40°C~85°C TA. In terms of its program memory type, it is FLASH. A total of 53 I/Os are available on this device. Other components that are comparable to it have the base part number ATMEGA128A. The terminals of this device are located at QUAD. There are a total of 64 terminations in it. In the AVR? ATmega series, this electrical component is found. Because the supply voltage is 5V, high efficiency can be achieved. The gadget has MICROCONTROLLER, RISC as its uPs/uCs/peripheral IC. It is constructed with 64 pins. As a result, it is mounted in accordance with Surface Mount. It falls under the category of Microcontrollers. Using the devices' 128kB memory size, you can store programs and data. It is highly efficient when it works at a frequency of 16MHz. There are currently 4 timers/counters set up on the system. It works with an oscillator type Internal.

ATMEGA128A-AU Features

64-TQFP package
Mounting type of Surface Mount
Microcontrollers subcategory

ATMEGA128A-AU Applications

There are a lot of Microchip Technology ATMEGA128A-AU Microcontroller applications.

  • Leakage current tester
  • Auto-breaking system
  • Microwave ovens
  • Magnetic resonance imaging (MRI)
  • Set-top boxes
  • Binding machines
  • Washing machine
  • Mobile computers
  • Fabric
  • Medical instruments chromatographs
How can we help you?