ATTINY441-SSUR

Overview

The ATTINY441-SSUR is an 8-bit AVR microcontroller in a 14-pin SOIC package. It features 4K bytes of In-System Programmable Flash, 256 bytes of EEPROM, and 256 bytes of SRAM. Operating at speeds up to 16 MHz with throughput approaching 1 MIPS per MHz, it supports voltages from 1.7V to 5.5V. Key peripherals include two USARTs, a 10-bit ADC with differential channels, two 16-bit timers, and an SPI interface.

Feature Summary

• Advanced RISC architecture executing most instructions in a single clock cycle for high efficiency.
• Dual full-duplex USARTs equipped with start frame detection capabilities.
• 10-bit Analog-to-Digital Converter supporting multiple single-ended and differential input channels.
• Integrated calibrated oscillators including an 8MHz main clock and a 32kHz ultra-low power option.

Applications

• Battery-powered embedded systems requiring low active and sleep mode current consumption.
• Industrial control applications utilizing programmable Brown-out Detection and enhanced Power-on Reset.
• Sensor interfacing designs leveraging the high-resolution ADC with programmable gain amplifiers.
• Communication nodes implementing Master/Slave SPI or Slave I2C serial interfaces.

Procurement Notes

Verify the specific speed grade suffix matches the required operational frequency for your voltage range. Confirm the 'R' suffix indicates tape and reel packaging if automated assembly is planned. Ensure the industrial temperature rating aligns with your environmental specifications. Cross-reference the datasheet revision to confirm pinout compatibility with existing designs.

Selection Notes

Select this component when dual asynchronous serial communication is necessary within a compact 14-pin footprint. The device is suitable for designs requiring precise timing via multiple timer/counters and PWM channels. Consider the available I/O lines and ADC channel count against system requirements before choosing between this model and the ATtiny841 variant.

Part Context

This part belongs to the ATtiny441/ATtiny841 family of 8-bit AVR microcontrollers manufactured by Microchip Technology (formerly Atmel). These devices utilize high-density non-volatile memory technology and are designed for cost-sensitive, low-power applications. The family shares a common instruction set and peripheral structure, differing primarily in memory capacity.

Replacement Considerations

ATtiny441-SSU