The Microchip AVR32DB28-E/SP is an 8-bit AVR MCU clocked at 24 MHz, with 32 KB Flash program memory, 4 KB SRAM, and 512 bytes of EEPROM. The 28-pin SPDIP package is through-hole, so it's socket-friendly for prototyping and field-repairable without hot air.
Analog peripherals — 9-channel ADC and a DAC on-chip
Connectivity and I/O count for control applications
With 21 I/O lines and I²C, SPI, and UART/USART serial interfaces, this MCU can talk to common sensors, displays, and actuators over a bus. The 24 MHz clock gives enough headroom for 8-bit control loops and communication protocol handling in motor drives, industrial sensor nodes, or HVAC controllers.
Active production — no end-of-life clock ticking
It's ROHS3 compliant.