Microchip Technology

ATMEGA128A-AU  

Microcontrollers

Microchip Technology's ATMEGA128A-AU is a low-power, high-performance 8-bit microcontroller unit (MCU) based on the AVR enhanced RISC architecture. It is designed for a wide range of embedded applications that require high computational power, low power consumption, and a rich set of integrated peripherals.

Description:

The ATMEGA128A-AU features 128KB of In-System Programmable Flash memory for storing the program code, 16KB of SRAM for data storage, and 4KB of EEPROM for non-volatile storage. It operates at a maximum frequency of 16 MHz and is available in a 44-pin TQFP package.

Features:

1. Enhanced AVR RISC architecture with 131 powerful instructions (most of them are single clock cycle)
2. Up to 16 MHz operation at 5V
3. 128KB of In-System Programmable Flash memory with read-while-write capability
4. 16KB of SRAM
5. 4KB of EEPROM
6. Nested Vectored Interrupt Controller (NVIC) with 48 interrupt sources
7. Up to 44 general-purpose I/O lines with optional internal pull-up resistors
8. 33 general-purpose I/O lines with independent programmable voltage level translator
9. 2 UARTs (USARTs) with mode support for SPI, LIN, and I2C
10. 2-channel 8-bit resolution PWM
11. 8-channel 10-bit ADC with up to 8 analog inputs
12. 2-channel 8-bit resolution DAC with on-chip references
13. 8-bit high-speed input capture
14. 8-channel output compare
15. SPI interface
16. 2 independent timers with 8-bit resolution
17. 2 independent timers with 16-bit resolution
18. USB 2.0 full-speed (12 Mbps) interface
19. Internal and external crystal oscillators with calibration
20. Sleep, power-down, and power-save modes for low-power operation
21. JTAG interface for programming and debugging
22. On-chip debug support with background debugging capability

Applications:

The ATMEGA128A-AU is suitable for a wide range of applications due to its high computational power, low power consumption, and extensive set of integrated peripherals. Some common applications include:

1. Industrial control and automation systems
2. Medical equipment and devices
3. Portable and battery-powered devices
4. Telecommunication systems
5. Automotive control systems
6. Home appliances and smart devices
7. Data acquisition and signal processing systems
8. Robotics and unmanned vehicles
9. Security and surveillance systems
10. Human-Machine Interface (HMI) devices

The ATMEGA128A-AU's combination of performance, memory, and features makes it a versatile choice for developers looking to create efficient and reliable embedded systems.

ATMEGA128A-AU Documents

Download datasheets and manufacturer documentation for ATMEGA128A-AU

PCN Assembly/Origin :

Fabrication Site 27/Sep/2023      

Datasheets :

ATMega128A Complete       ATMega128A Summary      

PCN Packaging :

Transfer to Microchip/Label/Pkg 5/Sep/2016       New Packing Material 02/Aug/2019      

Design Resources :

ATmega128A Development Tool Selector      

HTML Datasheet :

ATMega128A Summary      

PCN Design/Specification :

Marking Chgs 11/Jul/2017      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH