ATTINY441-MUR

Overview

The ATTINY441-MUR 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 a maximum clock frequency of 16 MHz with a supply voltage range of 1.7V to 5.5V. The device includes a 10-bit ADC with 12 external and 5 internal channels, two USARTs, SPI, and I2C interfaces. It utilizes a 20-pad VQFN package (3x3x0.85mm) and supports an industrial temperature range from -40°C to +85°C.

Feature Summary

• Advanced RISC architecture delivering up to 16 MIPS throughput at 16 MHz
• Integrated analog subsystem with 10-bit ADC, programmable gain, and dual on-chip comparators
• Comprehensive communication peripherals including dual full-duplex USARTs, Master/Slave SPI, and Slave I2C
• Multiple low-power operating modes including Idle, Standby, and Power-down

Applications

• Battery-powered sensor nodes requiring ultra-low power consumption
• Industrial control systems utilizing the industrial temperature rating
• Data acquisition applications leveraging the high-resolution ADC and programmable gain amplifiers
• Embedded devices requiring robust serial communication via dual USARTs

Procurement Notes

Verify that the specific ordering code ATTINY441-MUR corresponds to the 20-pad VQFN package variant as defined in the official Microchip datasheet. Confirm that the speed grade matches the required operational frequency for your application voltage. Ensure compliance with RoHS directives and lead-free specifications prior to procurement.

Selection Notes

Select this component when a balance of processing speed and memory capacity is needed within a compact footprint. The ATTINY441 offers sufficient program memory for complex logic while maintaining low active current. Consider the availability of multiple timer/counters and extensive interrupt sources for real-time control requirements.

Part Context

This device belongs to the ATtiny441/ATtiny841 family of 8-bit AVR microcontrollers manufactured by Microchip Technology. These controllers are designed for high-performance, low-power embedded applications. The family shares a common instruction set and peripheral architecture, differing primarily in memory sizes and pin counts across various package options.

Replacement Considerations

The ATTINY441-SSU and ATTINY441-MMH are confirmed alternative packages for the same silicon functionality. Verify pin compatibility if transitioning between the VQFN, SOIC, or MLF packages.