Technology Interfacing 8255

1. PPI : 82C55 The 82C55 is a popular interfacing component,that can interface any TTL-compatible I/O deviceto the microprocessor. It is used to interface to the keyboard…

Documents Advanced Microprocessor1 I/O Interface Programmable Interval Timer: 8254 Three independent 16-bit...

I/O Interface Programmable Interval Timer: 8254 Three independent 16-bit programmable counters (timers). Each capable in counting in binary or BCD with a maximum frequency…