EDN

Introduction and Comparison of 74HCT TTL Compatible CMOS Logic

This document tackles the basic facts of the 74HCT TTL Compatible CMOS components. It includes a comparison between its sub-family of components. Suggestions on what CMOS to use on a specific ...
Hackaday

Gates To FPGAs: TTL Electrical Properties

On the path to exploring complex logic, let’s discuss the electrical properties that digital logic signals are comprised of. While there are many types of digital signals, here we are talking about ...
EDN

How to Read Data Sheets: Logic ICs (Part 3)

In previous columns we’ve looked at TTL and CMOS logic devices in isolation. Things start to become interesting if we wish to use TTL and CMOS components in the same circuit. In previous columns we’ve ...
Electronic Design

Digital ICs/DSP: CMOS 20-Bit Bus Switches Replace TTL Equivalents

A set of four high-speed CMOS 20-bit bus switches provides pin-compatible equivalents to existing transistor-transistor-level (TTL) parts. These switches are designed for use in applications such as ...
Hackaday

Behind The Pin: Logic Level Outputs

There is one thing that unites almost every computer and logic circuit commonly used in the hardware hacking and experimentation arena. No matter what its age, speed, or internal configuration, ...