Integrated Circuits

Integrated Circuit (IC) Semiconductor Devices Circuit inside a chip—lots of transistors inside Same Package, Different functions

Integrated Circuit All Integrated circuits have Datasheets Information: what it does, pin out diagram, electrical characteristics, heat dissipation info, physical dimensions

DIP DIP = Dual Inline Package What it is Pin 1 indicator Notch indicating front of DIP

Dual Inline Package—how to read

555 Timer Very popular Generate pulses Few ways to hook up – Astable (square wave) – Monostable (one pulse when triggered) – Bistable(simple memory, can be set and reset) – Schmitt Trigger (inverting buffer)

555 Astable Produces a square wave

555 Monostable Produces one pulse when triggered

555 Bistable

555 Schmitt Trigger

4017 Decade Counter

Counter “Counts” by keeping track of how many pulses the input has and turning on corresponding outputs link