Is the 74l series the same as the TTL series?

The 74 series is often still called the ‘TTL series’ even though the latest ICs do not use TTL! The 74HC family has High-speed CMOS circuitry, combining the speed of TTL with the very low power consumption of the 4000 series. They are CMOS ICs with the same pin arrangements as the older 74LS family.

What’s the difference between the 74LS and 74HCT?

The 74LS (Low-power Schottky) family (like the original) uses TTL (Transistor-Transistor Logic) circuitry which is fast but requires more power than later families. The 74 series is often still called the ‘TTL series’ even though the latest ICs do not use TTL!

Who are the actors in the class of 74?

Class of ’74 Developed by Reg Grundy Organisation Starring Leonard Teale, John Hamblin, Gordon Glen Opening theme Brian Cadd Country of origin Australia

Which is the 74 series of CMOS circuits?

Some manufacturers released some 4000-seriesequivalent CMOS circuits with a 74 prefix, for example the 74HC4066[2]was a replacement for the 4066 with slightly different electrical characteristics (different power supply voltage ratings, higher frequency capabilities, lower “on” resistances in analog switches, etc.).

What does TTL stand for on a camera?

TTL stands for “through the lens.” It’s how your camera’s onboard light meter works and how your camera’s auto and semi-auto modes work (aperture priority, shutter priority, program, etc.). TTL flash is a system of calculating the correct amount of light from your flash using the information from your camera via “through the lens” metering.

What are the different series of TTL parts?

Older TTL parts made by manufacturers such as Signetics, Motorola, Mullardand Siemensmay have different numeric prefix and numbering series entirely, such as in the European FJ family FJH101 is an 8-input NAND gatelike a 7430.