Slightly fiddly-to-find ATtiny412 information The delightful 8pin ATtiny412 comes in a few versions, all with 4kbyte of flash and 256byte of ram, and it takes a while to dig out the following: ATtiny412-SSNR 20MHz 1.8-5.5V -40 to +105°C tape and reel ATtiny412-SSN tube or tray ATtiny412-SSFR 16MHz 2.7-5.5V -40 to +125°C tape and reel ATtiny412-SSF tube or tray Recommended Articles One I missed: Deluxe signal generator output stage with DAC Sallen and Key filter puzzle with LTspice Excellent ‘free’ book on bipolar transistors (and other excellent free books too) Is anyone working on a pesticide sensor? Arduino ATtiny EinW Engineer in Wonderland Microchip 2024-07-22 Steve Bush tweet