HEF40138

Hello all,
I'm looking for any information on an HEF40138. I know the HEF prefix
means it was made by Phillips (this is old enough that it probably was
Signetics) but they don't admit to ever having made a 40138. Ideally
I'm looking for a datasheet, but just having an idea what it does would
help.
Thanks in advance,
Glenn Pavlovic

 

[Alan]

On 8 Jul 2005 17:07:06 -0700, mountain352@netscape.net wrote:

Hello all,
I'm looking for any information on an HEF40138. I know the HEF prefix
means it was made by Phillips (this is old enough that it probably was
Signetics) but they don't admit to ever having made a 40138. Ideally
I'm looking for a datasheet, but just having an idea what it does would
help.
Thanks in advance,
Glenn Pavlovic

Sure it's not a 4013B Dual D flip flop ??

Alan


--
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Jenal Communications
Manufacturers and Suppliers of HF Selcall
P O Box 1108, Morley, Western Australia
Tel: +61 8 9370 5533 Fax +61 8 9467 6146
Web Site: http://www.jenal.com
Contact: http://www.jenal.com/?p=1
++++++++++++++++++++++++++++++++++++++++++

 

mountain352@netscape.net schrieb:

Hello all,
I'm looking for any information on an HEF40138. I know the HEF prefix
means it was made by Phillips (this is old enough that it probably was
Signetics) but they don't admit to ever having made a 40138. Ideally
I'm looking for a datasheet, but just having an idea what it does would
help.
Thanks in advance,
Glenn Pavlovic

Hi,

this is probably an HEF4013B - an ubiquitous CMOS dual D-type
flip-flop.

By the way, HEF is a "Pro Electron" designation, and thus not
necessarily
indicative of a particular manufacturer. Pro Electron was (?is) an
association created by electron tube and semiconductor device
manufacturers to administer the allocation of standardized type
designations.

According to their scheme, the first to letters "HE" designate the
digital family (CMOS with Vcc from 3 to 18V), and the third letter "F"
designates an operating ambient temperature range (-40 to +85 degrees
centigrade).

Martin.

 

[burbeck]

On 8 Jul 2005 17:07:06 -0700, mountain352@netscape.net wrote:

Hello all,
I'm looking for any information on an HEF40138. I know the HEF prefix
means it was made by Phillips (this is old enough that it probably was
Signetics) but they don't admit to ever having made a 40138. Ideally
I'm looking for a datasheet, but just having an idea what it does would
help.
Thanks in advance,
Glenn Pavlovic

hi glenn,
most likely HEF4013B
http://www.semiconductors.philips.com/pip/HEF4013B.html
regards
bob

 

Thank you to all those that replied (and those that sent email
replies). After careful rexamination (the printing was a bit smudged)
I've concluded that it is in fact a 'B' and not an '8'. It's a 14 pin
package, as is the 4013B. A D flop doesn't make a lot of sense where it
is but hopefully it will become clear once I track out the connections.
BTW, there does seem to be a 40138 as I found a couple of places that
sold it, though they didn't ever identify it, except by number. So just
for curiosities sake, anyone know what a 40138 is?
Thank you all again for the help.