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CMOS 40164?

H

Hans Summers

Jan 1, 1970
0
Was there ever a 40164? I have a circuit diagram showing it as an 8-bit
shift register, but it is quite possible it was a misprint and it should
really be the 74HC164 which of course does exist, was a descendent from the
74164 TTL version, and IS an 8-bit shift register. Though in that case the
pin descriptions would be incorrect. Does anyone know if there ever was a
40164, and if so, where a datasheet could be found? Google didn't help with
this.

Thanks

Hans
http://www.HansSummers.com
 
M

Mark Zenier

Jan 1, 1970
0
Was there ever a 40164? I have a circuit diagram showing it as an 8-bit
shift register, but it is quite possible it was a misprint and it should
really be the 74HC164 which of course does exist, was a descendent from the
74164 TTL version, and IS an 8-bit shift register. Though in that case the
pin descriptions would be incorrect. Does anyone know if there ever was a
40164, and if so, where a datasheet could be found? Google didn't help with
this.

Well, there was a 40163, a 40174, and a 40194 if you're looking for a single
character typo. But the '163 is a counter, the '174 a multiple latch,
and the '194 a bidirectional 4 bit shift register. There's also a
CD4014 which is an 8 bit shift register.

The clock is pin 8 on a 74HC164, pin 10 on a 4014.

Mark Zenier [email protected]m Washington State resident
 
H

Hans Summers

Jan 1, 1970
0
Thanks Mark. The article in question is:
http://www.hanssummers.com/radio/huffpuff/library/ttsep00.pdf . It looks
more and more like a typo or series of typos. The pins assigned to what is
definitely supposed to be an 8-bit shift register, definitely don't seem
reasonable for a 74HC164 or anything else. Very strange. I might have to
hunt for subsequent issues of RadCom magasine and see if corrections were
mentioned.

Hans
 
A

Alan

Jan 1, 1970
0
Thanks Mark. The article in question is:
http://www.hanssummers.com/radio/huffpuff/library/ttsep00.pdf . It looks
more and more like a typo or series of typos. The pins assigned to what is
definitely supposed to be an 8-bit shift register, definitely don't seem
reasonable for a 74HC164 or anything else. Very strange. I might have to
hunt for subsequent issues of RadCom magasine and see if corrections were
mentioned.

Hans
Philips use to make the 74HC164 - 8 bit shift register. It's in my
1986 copy of their data handbook.

Also:
http://www.standardproducts.philips.com/products/hc/pdf/74hc164.pdf

Alan


++++++++++++++++++++++++++++++++++++++++++
Jenal Communications
Manufacturers and Suppliers of HF Selcall
P O Box 1108, Morley, WA, 6943
Tel: +61 8 9370 5533 Fax +61 8 9467 6146
Web Site: http://www.jenal.com
Contact: http://www.jenal.com/?p=1
++++++++++++++++++++++++++++++++++++++++++
 
A

Alan

Jan 1, 1970
0
Philips use to make the 74HC164 - 8 bit shift register. It's in my
1986 copy of their data handbook.

Also:
http://www.standardproducts.philips.com/products/hc/pdf/74hc164.pdf

Alan
I suspect the numbering on the schematic is wrong.

Pin 8 should be pin 7
Pin 10 should be pin 8
pin 9 should be pin 10

Alan


++++++++++++++++++++++++++++++++++++++++++
Jenal Communications
Manufacturers and Suppliers of HF Selcall
P O Box 1108, Morley, WA, 6943
Tel: +61 8 9370 5533 Fax +61 8 9467 6146
Web Site: http://www.jenal.com
Contact: http://www.jenal.com/?p=1
++++++++++++++++++++++++++++++++++++++++++
 
H

Hans Summers

Jan 1, 1970
0
Alan said:
I suspect the numbering on the schematic is wrong.

Pin 8 should be pin 7
Pin 10 should be pin 8
pin 9 should be pin 10

Thanks Alan... in that case one would also need:

pin 16 should be pin 14

But also, one would need pin 1 to be connected to VCC not GND, and one would
also need to tie the reset pin 9 to VCC, which isn't indicated on the
diagram. It all seems like rather a lot of corrections, had they in fact
meant the 74HC164.

Anyway it isn't tremendously important, it's reasonably clear what's going
on and how to substitute other devices e.g. the 74HC164 or 4517 etc.

Hans
http://www.HansSummers.com
 
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