ATTINY1626-XUR

Overview

The ATtiny1626-XUR is an 8-bit microcontroller from the tinyAVR 2 family, featuring a 20 MHz AVR CPU with hardware multiplier. It includes 16 KB of Flash memory, 2 KB of SRAM, and 256 B of EEPROM. The device offers up to 18 general-purpose I/O pins and supports a supply voltage range of 1.8 V to 5.5 V. Key peripherals include a 12-bit differential ADC with PGA, two USARTs, SPI, TWI, and an Event System for inter-peripheral signaling.

Feature Summary

• Features a high-performance low-power AVR CPU running at up to 20 MHz with single-cycle I/O access and a two-cycle hardware multiplier.
• Includes a 12-bit differential Analog-to-Digital Converter (ADC) with Programmable Gain Amplifier (PGA) and up to 15 input channels.
• Supports flexible communication via two USARTs, Master/Slave SPI, and Master/Slave TWI interfaces.
• Integrates an Event System for CPU-independent peripheral signaling and Configurable Custom Logic (CCL) with four Look-Up Tables.

Applications

• Battery-powered sensor nodes requiring low power consumption
• Industrial control systems utilizing event-driven architectures
• Smart home devices needing multiple communication interfaces

Procurement Notes

Verify the specific ordering suffix 'XUR' corresponds to the TSSOP/SSOP package and -40°C to +85°C temperature range as defined in the datasheet naming convention. Confirm that the 'R' tape and reel identifier is included if required for automated assembly processes. Ensure compatibility with existing UPDI programming tools for development and production.

Selection Notes

Select this component when vertical migration within the tinyAVR 2 family is desired without code modification. Choose this part over smaller variants like the ATtiny1624 if additional I/O pins or external interrupt lines are required. Consider the extended speed grades available at higher supply voltages if performance requirements exceed standard operating conditions.

Part Context

This device belongs to the tinyAVR 2 family, which provides pin and feature compatibility across different flash sizes. The ATtiny1626 specifically bridges the gap between the 14-pin ATtiny1624 and the 24-pin ATtiny1627, offering 20-pin packages such as SOIC, SSOP, and VQFN. It shares architectural similarities with other members while providing distinct peripheral counts suitable for mid-range applications.

Replacement Considerations

Direct substitutes within the same family include the ATtiny1624 (fewer pins) and ATtiny1627 (more pins). Verify pinout compatibility before replacing, as horizontal migration may reduce available features. Cross-family replacements require significant software adaptation due to architectural differences.