Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

Simple Important Question

Status
Not open for further replies.
agrawalyogesh04

agrawalyogesh04

Junior Member level 2
Joined
Aug 23, 2006
Messages
23
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Location
Aurangabad ([Mah] India)
Activity points
1,432
i am in a great dilemma regarding the nomenclature of the digital IC's. For example, considering simple gate series, i.e. 74 series.

Why the series is 74XX and why not 87XX of 92XX series or so? What is the significance of the 74XX series?? :?:
 

there r lot of things that we do not know why its name is?
say why its name is HEN,parrot,or donkey.
 

there is some think in that like 555 threee 5k resis. in series
87= eprom vresion
89= flash version
30= ext. memory processor
 

Hi,

It's all depending on the IC manufacturer.

Why your name is Agarwalyogesh?

If you need more details, contact me.

Regards,

N.Muralidhara

CRL-BEL
 

74 was the name given to a 'Family' of IC's called TTL (Transistor Transistor Logic) It was a very popular series and many digital device constructed since the 1970's contained these devices
 

It's 100% dependent from the IC manufacturer...

What we do is to assign series of numbers for each one of the families of parts and then free numbers are later selected inside each family range...
 

I have one question whather tis site is in other language
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top