ATMEGA644P-15MT

Microcontrollers Overview

The ATMEGA644P-15MT is an 8-bit AVR microcontroller featuring 64 Kbytes of In-System Programmable Flash, 2 Kbytes EEPROM, and 4 Kbytes Internal SRAM. It operates at speeds up to 16 MHz with a supply voltage range of 2.7V to 5.5V. The device utilizes a 44-pad QFN/MLF package (7 x 7 mm body) and supports industrial temperature ranges from -40°C to +85°C.

Microcontrollers Feature Summary

• Advanced RISC architecture delivering up to 16 MIPS throughput at 16 MHz
• Non-volatile memory segments including self-programmable Flash with Read-While-Write capabilities
• Integrated JTAG interface for boundary-scan and on-chip debug support
• Multiple peripheral units including dual USARTs, SPI, TWI, and an 8-channel 10-bit ADC

Microcontrollers Applications

• Embedded control systems requiring high code density
• Industrial applications utilizing automotive quality grades
• Battery-powered devices optimized for low power consumption modes
• Data acquisition systems using the differential ADC input stage

Microcontrollers Procurement Notes

Verify the specific suffix MT corresponds to the 44-pad QFN/MLF package configuration. Confirm that the operational temperature range aligns with the intended environmental requirements. Ensure compatibility with the required speed grade relative to the operating voltage. Check for RoHS compliance status in the final datasheet revision.

Microcontrollers Selection Notes

Select this component when 64 Kbytes of program memory is necessary for complex firmware. Consider the QFN/MLF package for compact board layouts. Evaluate the need for the JTAG interface for debugging versus cost constraints. Compare against lower memory variants if storage requirements are reduced.

Microcontrollers Part Context

This part belongs to the ATmega164P/324P/644P family manufactured under ISO-TS-16949 standards. It shares the same core architecture and pinout as other members of the series, differing primarily in memory capacity. The device is designed for high-performance, low-power embedded applications.

Microcontrollers Replacement Considerations

ATMEGA644P-15MZ provides the same specifications in a TQFP package.