The Microchip ATTINY24A-PU is an 8-bit AVR microcontroller from the ATtiny family, packing 2 KB of Flash program memory, 20 MHz maximum clock speed, and 12 general-purpose I/O lines into a through-hole package. It integrates an internal oscillator, an 8-channel 10-bit ADC, and a Universal Serial Interface (USI) for simple serial communication.
Peripheral set for low-pin-count control tasks
These are the building blocks for a self-contained controller that can handle a brushed DC motor, read a thermistor, and keep a watchdog alive without external supervisory ICs. The 12 I/O lines are enough for a few pushbuttons, an LED bank, and a serial link to a host processor.
That means no last-time-buy clock is ticking — the storeroom can stock these without worrying about an EOL notice next quarter.
Through-hole package — rework and prototyping friendly
The DIP-14 package is a through-hole part, which means it fits breadboards, perfboards, and sockets. For a repair lab or a low-volume production run, this is a practical advantage: no hot-air rework station needed, and the part can be swapped in seconds. The 0.3-inch row spacing is standard for DIP sockets.