WTF.

bkmtech

Prodigy 230 points

Other Parts Discussed in Thread: CD40147B, SN74LS348, SN74LS148, SN74HC148

I have 5 switches.

In order to save IO's, I want to encode these 5 switches as BCD.

It seemed such a simple task?

I am going to love the responses I get.

over 8 years ago

0 Clemens Ladisch over 8 years ago

Guru 244220 points

And what is your question?

0 bkmtech over 8 years ago in reply to Clemens Ladisch

Prodigy 230 points

What chip replaces the obsolete one that used to perform that function?

This seems like such a straightforward concept, why am I struggling to find a chip?

0 Clemens Ladisch over 8 years ago in reply to bkmtech

Guru 244220 points

I don't know why you're struggling either. The product search finds several ones.

0 bkmtech over 8 years ago in reply to Clemens Ladisch

Prodigy 230 points

Let me understand two things. . First, if there is a chip to replace the 74147, why doesn't TI just list it on the product page. . Second, if you have an answer. what is it. . What chip in TI's current portfolio performs decimal to bcd conversion.?

0 ShreyasRao over 8 years ago in reply to Clemens Ladisch

TI__Guru 56100 points

Usually , the obsolete part will have its equivalent or replacement part mentioned in the product folder .

If it is one of TI competitor part , you can also make use of the cross reference search tool which provides recommendations of TI parts as well .

0 bkmtech over 8 years ago in reply to ShreyasRao

Prodigy 230 points

Here's the deal. Have you ever tried this on a cell phone. Can somebody please give me an answer if there is one. Is this a help forum?

0 ShreyasRao over 8 years ago in reply to bkmtech

TI__Guru 56100 points

Bkmtech,

cd40147b is 10 to 4 BCD encoder.

0 bkmtech over 8 years ago in reply to ShreyasRao

Prodigy 230 points

I can accomplish the same purpose with an OR Gate, thank you.

0 bkmtech over 8 years ago in reply to ShreyasRao

Prodigy 230 points

Thank you, I need to get back onto my laptop, I'll get back to you

0 bkmtech over 8 years ago in reply to ShreyasRao

Prodigy 230 points

Hello Sheyras

Here is the problem. What if I only search for bcd encoder instead of bcd priority encoder.

Thank you for your help.

Brian K

0 Clemens Ladisch over 8 years ago in reply to bkmtech

Guru 244220 points

SN74HC148, SN74LS148, SN74LS348

0 bkmtech over 8 years ago in reply to Clemens Ladisch

Prodigy 230 points

Hi Clemens

Thank you. I knew there had to be a chip (s). I had not uised the Product Search (which is impractical on a phone), but as I pointed out in another message, a search for bcd encoder brings up too narrowly refined search results to reveal exactly what I was looking for, but you also provided an answer to me, for this I am appreciative.

Brian K

BKM Engineering

Logic

Logic forum

WTF.