ATMEGA64-16AI

Microcontrollers Overview

The ATmega64-16AI is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. It features 64 Kbytes of In-System Reprogrammable Flash, 2 Kbytes EEPROM, and 4 Kbytes Internal SRAM. Operating at speeds up to 16 MHz with a supply voltage range of 4.5V to 5.5V, it delivers throughput approaching 1 MIPS per MHz. The device includes 53 programmable I/O lines, dual USARTs, an 8-channel 10-bit ADC, JTAG interface, and six software-selectable power-saving modes.

Microcontrollers Feature Summary

• Advanced RISC Architecture with 130 powerful instructions, most executing in a single clock cycle, supported by 32 general-purpose working registers and an on-chip 2-cycle multiplier.
• High endurance non-volatile memory segments including 64 Kbytes of Flash with Read-While-Write capabilities, 2 Kbytes EEPROM, and optional external memory space up to 64 Kbytes.
• Comprehensive peripheral set featuring dual programmable serial USARTs, byte-oriented Two-wire Serial Interface, Master/Slave SPI, two 8-bit and two expanded 16-bit Timer/Counters, and an 8-channel 10-bit ADC with programmable gain.
• JTAG (IEEE std. 1149.1 Compliant) interface providing boundary-scan capabilities, extensive on-chip debug support, and programming access for Flash, EEPROM, fuses, and lock bits.

Microcontrollers Applications

• Industrial control systems requiring robust embedded processing
• Computer peripheral devices needing high-speed data handling
• Embedded applications utilizing JTAG debugging and boundary-scan testing

Microcontrollers Procurement Notes

Verify that the ordering code matches ATmega64-16AI to ensure correct speed grade and package type. Confirm the operating voltage range requirements align with the 4.5V - 5.5V specification for this specific variant. Check for RoHS compliance status if required by your manufacturing standards. Ensure the package type corresponds to your PCB footprint design.

Microcontrollers Selection Notes

Select this model when 64 Kbytes of program memory and dual USARTs are necessary. Consider the 16 MHz speed grade for performance-critical tasks within the 4.5V to 5.5V supply range. Evaluate the need for JTAG debugging capabilities during development. Compare against lower-memory variants if storage requirements can be reduced.

Microcontrollers Part Context

The ATmega64 belongs to the Atmel AVR 8-bit microcontroller family, manufactured using high-density non-volatile memory technology. It supports backward compatibility with the ATmega103 via a selectable fuse setting. The device is designed for cost-effective embedded control solutions, combining an 8-bit RISC CPU with self-programmable Flash on a monolithic chip.

Microcontrollers Replacement Considerations

ATmega64L-16AU offers similar functionality but operates at a lower voltage range of 2.7V to 5.5V. Verify pin compatibility and electrical specifications before substitution. Ensure the replacement part meets the required operating temperature and speed grades for your application.