ATTINY1626-SFR

Overview

The ATtiny1626-SFR is an 8-bit microcontroller from the Microchip tinyAVR® 2 family, featuring a 20 MHz AVR CPU with hardware multiplier. It includes 16 KB of self-programmable Flash memory, 2 KB of SRAM, and 256 B of EEPROM. The device provides 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 through two USARTs, one SPI, and one TWI interface, enhanced by an Event System for predictable peripheral signaling.
• Offers robust system management with Power-on Reset, Brown-out Detection, and multiple sleep modes including Idle, Standby, and Power-Down.

Applications

• Low-power sensor nodes requiring precise analog signal acquisition
• Industrial control systems utilizing event-driven peripheral communication
• Battery-operated devices needing extended data retention and low standby current
• Embedded applications requiring reliable real-time clock functionality

Procurement Notes

Verify the specific ordering suffix 'SFR' against official Microchip documentation to confirm package type, temperature range, and reel specifications. Ensure compatibility with existing design constraints regarding pin count and memory allocation before procurement.

Selection Notes

Select this component for designs requiring vertical migration within the tinyAVR® 2 family without code modification. Consider the 18 I/O count and 16 KB Flash capacity relative to project requirements. Evaluate the 12-bit ADC performance if high-resolution analog sensing is necessary.

Part Context

This part belongs to the tinyAVR® 2 family, which shares architectural features across 14-, 20-, and 24-pin variants. The ATtiny1626 specifically offers a balance of memory and I/O capabilities in a 20-pin package, suitable for applications needing moderate peripheral density.

Replacement Considerations

ATtiny1624-SFR: Offers identical core features but with reduced pin count (14 pins) and fewer I/O options. ATtiny1627-SFR: Provides increased pin count (24 pins) and additional I/O resources while maintaining the same memory and peripheral configuration.