Digital Fundamental Tutorial - current develop by another thesis student.
Interactive Filter Design
Transistor Cross Reference Datebase
Component Specifications Database
Specifications for various 74xx Chips
Some educational applets on P-N transistors and CMOS
Asynchronous Logic - Virtually all digital design today is based on a synchronous approach. The total system is designed as the composition of one or more subsystems where each subsystem is a clocked finite state machine; the subsystem changes from one state to the next on the edges of a regular clock. The state is held in a set of flip-flops (registers), and combinatorial logic is used to derive the new state and outputs from the old state and inputs. The new state is copied through the flip-flops on every rising edge of the clock signal. Special techniques are required whenever a signal crosses into the domain of a particular clock (either from outside the system or from the domain of a different clock within the same system), but otherwise the system behaves in a discrete and deterministic way provided a few rules are followed; these rules include managing the delays of the combinatorial logic so that the flip-flop set up and hold times are met under all conditions.

Asynchronous design does not follow this methodology; in general there is no clock to govern the timing of state changes. Subsystems exchange information at mutually negotiated times with no external timing regulation.
CIRCUIT COOKBOOK TEMPLATE
MICROELECTRONIC SYSTEMS NEWS - Microelectronic Systems News, formerly known as the MOSIS Users' Group (MUG) Newsletter, includes not only items of interest to those designing integrated circuits for prototyping via MOSIS but also for those designing, prototyping and producing microelectronic systems. Notices of new items are broadcast to about 1800 subscribers throughout the world. There is no charge for this service.
Usenet - Semiconductor devices, processes, materials, physics.
SemiWeb - SemiWeb is a semiconductor, integrated circuit, micromanufacturing, flat panel display, thin film heads, and related resource and exposition center that provides the latest in company and product news, employment opportunies, connections to related sites, research references, and much more.
What standards exist for digital audio?
What is mu-law encoding?

Electrical Engineering Circuits Archive