ATMEGA164A-AUR

Microcontrollers Overview

The ATMEGA164A-AUR is an 8-bit microcontroller based on the AVR RISC architecture, manufactured by Microchip Technology. It features 16KB of in-system programmable Flash memory, 512 bytes of EEPROM, and 1KB of SRAM. The device operates at a maximum clock frequency of 20MHz with a supply voltage range of 1.8V to 5.5V. It is housed in a 44-lead TQFP package (10x10mm) and supports industrial temperatures from -40°C to +85°C. Key peripherals include three timers/counters, an 8-channel 10-bit ADC, and communication interfaces such as SPI, USART, and TWI/I2C.

Microcontrollers Feature Summary

• AVR enhanced RISC core delivering nearly 1 MIPS per MHz throughput with single-cycle instruction execution.
• Integrated non-volatile memory system including self-programming Flash, EEPROM, and SRAM with boot code section options.
• On-chip analog-to-digital converter providing eight channels with 10-bit resolution for sensor interfacing.
• Supports JTAG boundary scan and in-system programming via SPI for flexible development and debugging.

Microcontrollers Applications

• Industrial control systems requiring robust I/O capabilities and reliable operation in harsh environments.
• Consumer electronics utilizing low-power modes and integrated touch sensing capabilities.
• Computer peripheral devices needing serial communication interfaces like USART and SPI.
• Smart metering applications benefiting from precise timing and low voltage operation.

Microcontrollers Procurement Notes

Verify the specific suffix 'AUR' corresponds to the tape and reel packaging format when ordering. Confirm that the component meets RoHS compliance requirements for your target market. Ensure compatibility with existing PCB footprints for the 44-TQFP package. Check for any end-of-life notices or recommended new design alternatives if sourcing for long-term production runs.

Microcontrollers Selection Notes

Select this model when a balance of moderate program memory and high-speed processing is required within a compact surface-mount package. Consider the wide supply voltage range for designs operating between 1.8V and 5.5V without external level shifters. Evaluate the pin count against I/O requirements, noting that not all pins may be available depending on the specific package variant selected.

Microcontrollers Part Context

This component belongs to the ATmega family of 8-bit microcontrollers produced by Microchip Technology following its acquisition of Atmel. The ATmega series is widely recognized for its efficiency and extensive peripheral integration. The 'A' suffix typically denotes an advanced version with improved specifications compared to earlier iterations, while 'U' indicates lead-free and halogen-free construction.

Microcontrollers Replacement Considerations

The ATMEGA164PA-AUR is a verified functional substitute offering similar specifications. For legacy designs, the ATMEGA164A-AU serves as a tray-packaged alternative. Verify pinout compatibility and software register mappings before swapping components to ensure seamless integration into existing hardware architectures.