Microchip datasheet for the dsPIC30F4013 digital signal controller, a 16-bit device combining a microcontroller with DSP capabilities, in a 5.22 MB PDF.

An 804 KB full datasheet for the tiny15, consistent with the Atmel AVR ATtiny15 8-bit microcontroller. No revision appears in the name.

Datasheet for the older ATmega161 AVR microcontroller, a 1.65 MB PDF document. It details pin functions, the memory map, peripherals such as timers and UARTs…