ATTINY1627-MF

Overview

The ATtiny1627-MF is an 8-bit AVR microcontroller from the tinyAVR® 2 family, featuring a hardware multiplier CPU running at up to 20 MHz. It includes 16 KB of self-programmable Flash memory, 2 KB of SRAM, and 256 bytes of EEPROM. The device provides 22 programmable I/O pins in a 24-pin VQFN package. Key peripherals include a 12-bit differential ADC with PGA, configurable custom logic (CCL), event system, and multiple timers. It supports a supply voltage range of 1.8V to 5.5V and operates within an extended temperature range of -40°C to +125°C.

Feature Summary

• High-performance low-power AVR CPU with single-cycle I/O access and two-cycle hardware multiplier
• Advanced analog features including a 12-bit differential ADC with Programmable Gain Amplifier (PGA)
• Configurable Custom Logic (CCL) with four programmable Look-Up Tables for flexible digital logic implementation
• Event System enabling CPU-independent inter-peripheral signaling for predictable communication

Applications

• Real-time control systems such as power converters and auxiliary safety monitoring
• High-precision sensor interfaces for smoke, PIR, thermocouples, humidity, light, pressure, and force sensing
• Sensor nodes operating in noisy environments benefiting from noise suppression capabilities
• Analog interface chips for larger MCUs/MPUs with limited analog performance

Procurement Notes

Verify the specific ordering suffix 'MF' against official Microchip documentation to confirm package type and temperature grade. Ensure compatibility with existing design constraints regarding the 24-pin VQFN footprint and the -40°C to +125°C extended temperature rating. Confirm that the selected variant meets all electrical characteristics required for the target application environment.

Selection Notes

Select this component when vertical migration within the tinyAVR® 2 family is required without code modification. Choose this part for applications needing 22 I/O pins and 16 KB of program memory in a compact 24-pin form factor. Consider this MCU for designs requiring high-speed analog acquisition via the 12-bit ADC with PGA or precise timing using the dedicated RTC and TCA/TCB timers.

Part Context

The ATtiny1627 belongs to the tinyAVR® 2 family, which shares pin and feature compatibility across different flash sizes. It offers horizontal migration options to devices with fewer pins and lower memory, such as the ATtiny1626 or ATtiny1624. This family utilizes advanced technologies like the Event System and CCL to optimize board layout and reduce power consumption while maintaining high processing speeds.

Replacement Considerations

Compatible substitutes within the same family include ATtiny1626 and ATtiny1624, provided the reduced pin count and peripheral availability are acceptable. Vertical migration to higher memory variants like ATtiny3227 is possible without code changes if additional resources are needed.