ATTINY44A-MMHR

Overview

The ATTINY44A-MMHR is an 8-bit AVR microcontroller featuring 4K bytes of In-System Programmable Flash, 256 bytes of EEPROM, and 256 bytes of SRAM. It operates at speeds up to 20 MHz with a supply voltage range of 1.8V to 5.5V. The device includes one 8-bit and one 16-bit Timer/Counter with PWM channels, a 10-bit ADC with 8 single-ended and 12 differential channel pairs, and a Universal Serial Interface. It utilizes a 15-ball UFBGA package.

Feature Summary

• Advanced RISC architecture executing most instructions in a single clock cycle for high throughput.
• Non-volatile memory segments with high endurance ratings for Flash and EEPROM.
• Integrated analog peripherals including a 10-bit ADC with programmable gain and an on-chip analog comparator.
• Supports low-power operation through multiple software-selectable sleep modes.

Applications

• Battery-powered embedded systems requiring low power consumption
• Industrial control applications utilizing the industrial temperature range
• Sensor interfaces leveraging the integrated ADC and analog comparator

Procurement Notes

Verify the specific suffix MMHR corresponds to the required tape-and-reel packaging configuration. Confirm that the ordering code matches the exact memory size and speed grade intended for the design. Ensure compatibility with existing SPI programming interfaces for in-system programming.

Selection Notes

Select this component when a balance of processing speed and power efficiency is required within a compact footprint. The UFBGA package is suitable for space-constrained designs. Consider the available I/O lines and peripheral count against application requirements before finalizing the choice.

Part Context

This part belongs to the ATtiny24A/44A/84A family of 8-bit AVR microcontrollers. These devices are manufactured using Microchip's high-density non-volatile memory technology. The family shares a common instruction set and architectural core, differing primarily in memory sizes and pin counts.

Replacement Considerations

Direct replacements include other variants within the ATtiny44A series such as ATTINY44A-MU or ATTINY44A-MNR, provided the package type and reel specifications match the assembly requirements. Cross-family migration to ATtiny84A may be considered if additional memory is needed.