ATTINY1626-MUR

Overview

The ATTINY1626-MUR is an 8-bit AVR microcontroller from the tinyAVR® 2 family, operating at up to 20 MHz. It features 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 includes a 12-bit differential ADC with a Programmable Gain Amplifier (PGA) supporting up to 15 input channels. Connectivity options include two USARTs, one SPI, and one TWI interface. It operates within a supply voltage range of 1.8 V to 5.5 V and is housed in a 20-pin VQFN package.

Feature Summary

• Features a high-performance low-power AVR CPU with a hardware multiplier and single-cycle I/O access.
• Includes an event system for CPU-independent inter-peripheral signaling and configurable custom logic with four programmable look-up tables.
• Integrates a 12-bit differential ADC with a programmable gain amplifier and multiple internal voltage references.
• Supports three sleep modes: Idle, Standby, and Power-Down with full data retention.

Applications

• Sensor nodes requiring efficient real-time control
• Industrial applications with space constraints
• Consumer electronics and home appliances
• Automotive sensor interfaces

Procurement Notes

Verify the specific suffix 'MUR' against Microchip documentation to confirm the package type, temperature range, and carrier configuration. Ensure compatibility with existing designs by checking pinout alignment if migrating from other variants within the tinyAVR 2 family. Confirm that the required speed grades align with the intended operating voltage and temperature conditions.

Selection Notes

Select this component when 16 KB of program memory and 18 I/O pins are required within a compact 20-pin footprint. It is suitable for designs needing advanced analog capabilities like the PGA-enabled ADC or precise timing via the RTC. Consider vertical migration paths to ATtiny1627 for additional I/O without code changes, or horizontal migration to ATtiny1624 for reduced pin counts.

Part Context

This device belongs to the tinyAVR® 2 family, which emphasizes low power consumption and flexible architecture. It shares core peripherals and instruction sets with the ATtiny1624 and ATtiny1627, allowing for easy scaling across different pin counts and feature sets while maintaining software compatibility.

Replacement Considerations

ATtiny1627-MUR offers 22 I/O pins and is fully pin-compatible for vertical migration. ATtiny1624-MUR provides 12 I/O pins for horizontal migration. Verify that the replacement part number matches the required package and temperature grade specifications.