planetanalog.com

First 3.3-V supply PECL/TTL translators rolled for digital data, clock signals in telecom apps

Dallas, TX — Texas Instruments Incorporated (TI) introduced seven pseudo emitter-coupled logic (PECL) and transistor-transistor logic (TTL) translator drivers and receivers, including the industry's ...
IEEE

A 3.3-V/5-V low power TTL-to-CMOS input buffer

Abstract: A separately self-biased transistor-transistor logic (TTL)-to-CMOS input buffer (SSIB) is proposed. Its logic threshold voltage is kept at 1.4 V when supply voltage is changed from 3.3 V to ...
EDN

How to Read Data Sheets: Logic ICs (Part 6)

The 74HC00 data sheet warns that inputs must not be allowed to float because this makes the output indeterminate. Now, that in itself is a good reason, but there is more… In my previous column, we ...
EDN

Logic On-Off

The logic on-off function allows the user to shut off the converter’s output using a simple TTL logic signal or mechanical switch, and avoids having to turn off the DC input bus. This feature is ...
elektormagazine

h-l logic tester

This is a TTL logic probe which, instead of the usual LED to indicate the logic states, uses a seven-segment Minitron or LED display to indicate `H` for a high or `1` state and ` L` for a low or `O` ...
Hackaday

ttl logic

Self-acclaimed computer nerd [Kevin Koster] was tired of designing new TTL-logic clocks before finishing his previous designs. So he finally buckled down and completed this unique word clock, which ...