ATTINY44A-MF

Overview

The ATTINY44A-MF is an 8-bit AVR microcontroller featuring 4KB of In-System Programmable Flash, 256 bytes of EEPROM, and 256 bytes of SRAM. It operates within a voltage range of 1.8V to 5.5V and supports clock speeds up to 20MHz at 4.5V–5.5V. The device includes a 10-bit ADC with 8 single-ended channels, two timer/counters with PWM capabilities, and a Universal Serial Interface. It utilizes a 20-pin WQFN/VQFN package and functions across an industrial temperature range.

Feature Summary

• Advanced RISC architecture executing most instructions in a single clock cycle for high throughput efficiency.
• Integrated non-volatile memory segments with high endurance ratings for Flash and EEPROM data retention.
• Comprehensive peripheral set including a 10-bit ADC with programmable gain, analog comparator, and debugWIRE system.

Applications

• Low-power embedded control systems requiring efficient processing at minimal voltage levels.
• Sensor interface applications utilizing the integrated 10-bit ADC and analog comparator.
• Industrial environments necessitating operation across extended temperature ranges.

Procurement Notes

Verify the specific suffix MF corresponds to the 20-pin WQFN/VQFN package configuration before procurement. Confirm that the industrial temperature grade aligns with your operational environment requirements. Ensure compatibility with existing SPI programming interfaces for in-system programming needs. Cross-reference the datasheet revision to confirm pinout consistency with current design schematics.

Selection Notes

Select this component when a balance between moderate program memory capacity and low power consumption is required. The 20MHz speed grade provides sufficient processing power for simple control loops while maintaining energy efficiency. Consider the available I/O lines and ADC channels against application signal requirements. Evaluate the package constraints to ensure the WQFN form factor fits the physical layout limitations.

Part Context

This device belongs to the ATtiny24A/44A/84A family, sharing a common core architecture and peripheral set differentiated primarily by memory sizes. The 'A' variant denotes updated features compared to earlier generations. It serves as a cost-effective solution for resource-constrained designs needing reliable 8-bit processing capabilities without complex operating system overhead.

Replacement Considerations

Direct replacements include other members of the ATtiny44A series with different package options, such as PDIP or SOIC variants, provided pinouts remain compatible. Verify electrical characteristics and memory specifications match exactly when substituting with older ATtiny44 models.