ATTINY1627-MU

Overview

The ATtiny1627-MU 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 bytes of EEPROM. The device includes a 12-bit differential ADC with a Programmable Gain Amplifier (PGA), offering up to 15 input channels. It provides 22 programmable I/O pins in a 24-pin VQFN package. Key peripherals include two USARTs, SPI, TWI, four CCL LUTs, one TCA, two TCBs, and an RTC. It supports a supply voltage range of 1.8V to 5.5V and operates within a temperature range of -40°C to +85°C.

Feature Summary

• Features a high-performance low-power AVR CPU with hardware multiplier running at up to 20 MHz.
• Includes a 12-bit differential ADC with Programmable Gain Amplifier (PGA) for accurate analog sensing.
• Supports CPU-independent peripheral communication via the Event System and Configurable Custom Logic (CCL).
• Offers flexible clock options including internal oscillators and external crystal support.

Applications

• High-precision sensor nodes such as smoke, PIR, and thermocouple interfaces.
• Real-time control systems like power converters and auxiliary safety monitoring.
• Analog interface chips for larger MCUs/MPUs in noisy environments.

Procurement Notes

Verify the specific ordering suffix 'MU' corresponds to the 24-pin VQFN package and industrial temperature range (-40°C to +85°C) as defined in Microchip's official datasheet DS40002234A. Confirm that the device variant matches the required pin count and memory configuration for your design. Ensure compatibility with the UPDI programming interface requirements.

Selection Notes

Select this component when vertical migration within the tinyAVR® 2 family is required without code modification. It is suitable for designs needing 22 I/O pins and advanced analog features like PGA-enabled ADCs. Consider this part for space-constrained applications requiring efficient real-time control and low-power operation across a wide voltage range.

Part Context

The ATtiny1627 belongs to the tinyAVR® 2 family, which shares pin and feature compatibility with other members like the ATtiny1624 and ATtiny1626. This family utilizes the latest AVR CPU technology with hardware multipliers and advanced digital peripherals. The 1627 specifically offers the highest pin count (24) and I/O availability within the 16 KB Flash tier of this series.

Replacement Considerations

Devices within the same family, such as ATtiny1624 or ATtiny1626, offer horizontal migration options with reduced pin counts and features. Vertical migration to higher memory variants like ATtiny3227 is possible but requires checking for additional peripheral differences. Ensure substitute parts match the required package type and temperature grade.