Peripheral Input Output, PIA, Logics

74100 bistable latch

74HC257 Quad 2-input multiplexer IC (74257 IC)

IC 74193 Synchronous 4-Bit Up-Down Binary Counter

74HC373 Octal D-Type Latch 3-State Output IC (74373 IC)

74LS138 – 3 to 8 Line Decoder IC


https://www.pdfdrive.com/inputoutput-interface-circuits-and-lsi-peripheral-device-e107449322.html
82c54 8254 PROGRAMMABLE INTERVAL TIMER
8255

https://www.pdfdrive.com/pdf-build-your-own-z80-computer-retro-computing-e6346748.html

8254 is hardware delay not software delay

 

8254 datasheet

https://www.scs.stanford.edu/10wi-cs140/pintos/specs/8254.pdf

8255 datasheet

http://bpie.org.in/online-study/etce/Microprocessor%20Unit-%20Memory%20interfacing%20&%20IO%20interfacing.pdf