Looking for a part...

[Daniel Rudy]

Hello,

I'm looking for a hex to 7-segment decoder/driver for a LED. I know
that Motorola used to make one some time ago, the MC14495 but I cannot
find any substitutes. Does anyone know WHERE I can find one, or four.
Or even something that performs the same function.

I was also thinking of using an FPGA if I had to, but I need the latch
and driver functionality as well.

 

[John Miller]

Depending on how desperate you are, PartMiner show 13 available but they
don't show a price and they have a minimum $100 order for in-stock items.
Also, you need to set up an account (http://www.partminer.com)

Alternatively, there's a place in Ireland:

http://www.donberg.ie/descript/m/mc14495.htm

showing the driver for about US$15.

John.

"Daniel Rudy"

 

[Lou]

I "might" have one, in a Radio Shack brand. I have a shop here - doing 2 way
radio/ham/cb/audio repairs and also do buy outs and such. "I" do not require
any minimum purchases. BUT I also do not guarantee parts which "I" do not
install. These parts ARE all NOS. Meaning brand new in package - old stock.
I'll look through my inventory and get back to you. Parts/items are at cost
as I list plus shipping and payments via Postal MO. Shipment is then made
either the same day or the next business day AND insured. I do not send
anything out uninsured. Yes, the shipping may add up, but then again, what
is cheaper - $5 or $6 with shipping or $100 minimum order plus shipping for
a $1+ part needed?

I have lots of odd ball parts here and even some removed from other items
(salvaged) which are useable. Never know what you may find here. Just keep
me in mind. If I have it, I'll tell you. I'm not that expensive in parts, it
is the shipping, which I have no control of.

Lou


----- Original Message -----
From: "Daniel Rudy"
<i0n1v2a3l4i5d6d7c8r9u0d1y2e3m4a5i6l7@n0o1p2a3c4b5e6l7l8s9p0a1m2.3n4e5t6>
Newsgroups: sci.electronics.basics
Sent: Friday, July 09, 2004 3:44 AM
Subject: Looking for a part...

Hello,

I'm looking for a hex to 7-segment decoder/driver for a LED. I know
that Motorola used to make one some time ago, the MC14495 but I cannot
find any substitutes. Does anyone know WHERE I can find one, or four.
Or even something that performs the same function.

I was also thinking of using an FPGA if I had to, but I need the latch
and driver functionality as well.

"Daniel Rudy"

 

[John Fields]

Hello,

I'm looking for a hex to 7-segment decoder/driver for a LED. I know
that Motorola used to make one some time ago, the MC14495 but I cannot
find any substitutes. Does anyone know WHERE I can find one, or four.
Or even something that performs the same function.

 

[CFoley1064]

Subject: Looking for a part...

From: Daniel Rudy
i0n1v2a3l4i5d6d7c8r9u0d1y2e3m4a5i6l7@n0o1p2a3c4b5e6l7l8s9p0a1m2.3n4e5t6
Date: 7/9/2004 2:44 AM Central Daylight Time
Message-id: <[email protected]>


Hello,

I'm looking for a hex to 7-segment decoder/driver for a LED. I know
that Motorola used to make one some time ago, the MC14495 but I cannot
find any substitutes. Does anyone know WHERE I can find one, or four.
Or even something that performs the same function.

I was also thinking of using an FPGA if I had to, but I need the latch
and driver functionality as well.

If you're not looking for a pin-for-pin replacement, you might want to try the
CD4511, which is available from several manufacturers. Try Mouser's
512-CD4511BCN, which is available for $0.81 USD ea. in single quantities.
They've got an on-line data sheet, too.

http://www.mouser.com/

Good luck
Chris

 

[Michael Black]

If you're not looking for a pin-for-pin replacement, you might want to try the
CD4511, which is available from several manufacturers. Try Mouser's
512-CD4511BCN, which is available for $0.81 USD ea. in single quantities.
They've got an on-line data sheet, too.

http://www.mouser.com/

Good luck
Chris

Is that what the MC14495 is? It's an obscure enough number that I need
to look it up, and my circa 1977 Motorola CMOS book does not even have it
listed. My first guess was that someone had picked the wrong number, or
was trying to do something obscure (like convert from seven segment to
something else).

The 4511 was always the common BCD to seven-segment decoder in the CMOS
line. Unless there was a good reason for not using it, it is the one
to use since it was common.

Michael

 

[Daniel Rudy]

And somewhere around the time of 07/09/2004 08:09, the world stopped and
listened as John Fields contributed the following to humanity:

---
There are a large number of solutions available if you can blow off
the 14495 and go with "something that performs the same function".

Are you doing a new design or are you trying to repair something?

The post was in the wrong group. It was supposed to go to the
components group. Anyways, this is a new design. If you have a
suggestion, I will be most gratefull. Basically, I have 16 digital
lines going into a R2R ladder. What the LED readouts do, is display a
number for each nibble which gives me the readout of which digital lines
are on/off. If you know of a quad channel unit, that would be even
better, perfect in fact.