how to find compatible component ? search made me bleary brained

[robb]

so i have a **DM7496** (DIP16) that is fried (obsolete), and i
need compatible replacement
datasheet says 5-Bit shift register, R-S master slave flip
flops , parallel in/out, serial in/out

how does one go about finding a suitable replacement ? what words
to look for ?

I have found lots of 8-Bit shift register ICs, universal, shift,
latch, storage, s->p, p->s, and various varieties but nothing
that looks similar or familiar to the 7496 datasheet

then i suppose if i find a similar 8-Bit shift reg version i will
need to do something special to the 3 regs not needed or used ???
like ability to address/mask/disable certain regs or address
where i get serial out from or maybe use the #5 parrallel out as
source for serial out ? and let the last 3 regs float ??

any helpful ideas very very welcomed,
robb

 

[John Larkin]

so i have a **DM7496** (DIP16) that is fried (obsolete), and i
need compatible replacement
datasheet says 5-Bit shift register, R-S master slave flip
flops , parallel in/out, serial in/out

how does one go about finding a suitable replacement ? what words
to look for ?

I have found lots of 8-Bit shift register ICs, universal, shift,
latch, storage, s->p, p->s, and various varieties but nothing
that looks similar or familiar to the 7496 datasheet

then i suppose if i find a similar 8-Bit shift reg version i will
need to do something special to the 3 regs not needed or used ???
like ability to address/mask/disable certain regs or address
where i get serial out from or maybe use the #5 parrallel out as
source for serial out ? and let the last 3 regs float ??

any helpful ideas very very welcomed,
robb

http://store.americanmicrosemiconductor.com/sn7496.html

 

[Martin Crossley]

http://store.americanmicrosemiconductor.com/sn7496.html

If you search Ebay for SN7496N, SN7496 and 7496, there's quite a choice.

 

[Eeyore]

so i have a **DM7496** (DIP16) that is fried (obsolete), and i
need compatible replacement

The vital piece of info*7496*. DM is simply a manufacturer specific prefix.

This means it's a standard 74 series TTL part. These are still widely available
in more modern versions. You may have trouble finding a genuine original 74
series part (the specs are very outdated now) but very likely an 'LS series part
(74LS96) or HCMOS 74HC(T)96 will function as a drop-in replacement.

Graham

 

[JeffM]

The vital piece of info*7496*. DM is simply a manufacturer specific prefix.

Yup. More here:
http://www.google.com/search?q=cach...or+Digital.Monolithic+DM+Linear.Monolithic+LM

 

[robb]

Thanks John for the help,

Looks like a i jumped the gun... i had become so flustered
*not*-finding the obsolete parts i have needed lately that i just
plain gave up on google/yahoo-ing first.

i just went to digikey since they have been most consistent
source and they had nothing. after reading your's and other posts
i checked mouser and they have a compatible sub. probably the
same one jeffm pointed out.

To recover (save face) somewhat :}
Hypothetically speaking,
any ideas on how or what one does to replace such obsolete parts
when there is no direct drop in equiv EG. could the 8 bit
shift reg IC be **creatively** used to implement a 5 bit shift
reg IC or would one need to find a lowest denominator of ICs to
construct an equivalent circuit ?

sorry people if i jumped the question gun,
robb

 

[robb]

If you search Ebay for SN7496N, SN7496 and 7496, there's quite a choice.

Thanks Martin,
my bad, i usenet'ed too soon.
robb

 

[robb]

robb wrote

The vital piece of info*7496*. DM is simply a manufacturer specific prefix.

This means it's a standard 74 series TTL part. These are still widely available
in more modern versions. You may have trouble finding a genuine original 74
series part (the specs are very outdated now) but very likely an 'LS series part
(74LS96) or HCMOS 74HC(T)96 will function as a drop-in replacement.

Thanks Graham,
thanks for info, if i can keep all this stuff in my head i might
accomplish something .

i did happen to find a compatible part through mouser, iguess i
troubled the group to soon.
thanks again,
robb

 

[robb]

specific prefix.
Yup. More here:
http://www.google.com/search?q=cach...or+Digital.Monolithic+DM+Linear.Monolithic+LM

thanks jeff for helpful info/link
robb

 

[kilowatt]

Hello Robb

I have lots of these in my back room of 12300 part numbers.
This may solve your problem of finding this part. Contact me
if you still need this part. They run about $2 or 3 dollars + shpg.

surplus addict.
kilowatt

*************************************

 

[John Fields]

Thanks John for the help,

Looks like a i jumped the gun... i had become so flustered
*not*-finding the obsolete parts i have needed lately that i just
plain gave up on google/yahoo-ing first.

i just went to digikey since they have been most consistent
source and they had nothing. after reading your's and other posts
i checked mouser and they have a compatible sub. probably the
same one jeffm pointed out.

To recover (save face) somewhat :}
Hypothetically speaking,
any ideas on how or what one does to replace such obsolete parts
when there is no direct drop in equiv EG. could the 8 bit
shift reg IC be **creatively** used to implement a 5 bit shift
reg IC or would one need to find a lowest denominator of ICs to
construct an equivalent circuit ?