Microchip datasheet for the PIC18F1220 and PIC18F1320, 18-pin PIC18 flash microcontrollers, about 5.48 MB.

Datasheet for the Atmel AT89S8252, an 8051-family microcontroller with 8 KB of downloadable flash, 2 KB of EEPROM and an SPI interface used for in-system programming.

PDF, 178 KB, covering the inverter side of the SFD064VT4 part as indicated by the INVT suffix, filed as a datasheet.

Instruction set reference in PDF format, 758 KB; the name alone does not specify the architecture, though it sits alongside AVR documents and most likely is the Atmel…

Datasheet for the KB9022Q, an ENE Technology keyboard and embedded controller found on many notebook motherboards, in a compact 137 KB PDF.