ATTINY44V-10XU

Overview

The Atmel ATTINY44V-10XU is an 8-bit AVR microcontroller featuring a VQFN-20 package with 20 pins. It integrates 4 KB of in-system programmable Flash memory, 512 bytes of EEPROM, and 512 bytes of SRAM. The device operates at a maximum clock frequency of 10 MHz and supports a supply voltage range of 1.8 V to 5.5 V. Key peripherals include an 8-channel 10-bit ADC, one PWM unit, three SPI channels, one UART channel, and one I2C channel. It functions within a temperature range of -40 °C to +85 °C.

Feature Summary

• Advanced RISC architecture delivering high performance with most instructions executing in a single clock cycle.
• Non-volatile memory system providing in-system programmable Flash, EEPROM, and internal SRAM for data retention.
• Integrated analog-to-digital converter supporting multiple input channels for sensor interfacing.
• Comprehensive serial communication interfaces including SPI, USART, and I2C for peripheral connectivity.

Applications

• Battery-powered embedded systems requiring low power consumption
• Industrial control modules utilizing serial communication protocols
• Sensor interface circuits involving analog signal acquisition

Procurement Notes

Verify the specific suffix 'V' indicates the extended voltage range (1.8V–5.5V) and '10' denotes the 10 MHz speed grade. Confirm the 'XU' suffix corresponds to the VQFN-20 package variant. Ensure compatibility with development tools supporting the AVR architecture. Check for RoHS compliance status if required by project specifications. Validate that the manufacturer documentation confirms these exact parameter definitions for this part number.

Selection Notes

Select this component when a compact VQFN-20 footprint is required alongside moderate memory capacity. It is suitable for applications needing multiple serial interfaces and analog inputs without USB or CAN capabilities. Consider the 10 MHz operating speed against power constraints. Evaluate the 1.8 V minimum supply requirement against available power rails. Compare pin counts and peripheral sets against alternative ATtiny series devices for optimal fit.

Part Context

This device belongs to the ATtiny family of 8-bit AVR microcontrollers manufactured by Atmel. It shares architectural similarities with other members like the ATtiny44 and ATtiny84 but differs in package type and specific speed/voltage ratings. The VQFN-20 package offers a surface-mount solution suitable for space-constrained designs. It represents a mid-range option within the low-power AVR portfolio.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify cross-references through official Microchip/Atmel documentation before substitution.