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digital serial number IC

I noticed that Dallas semi has some "1 wire" temperature sensor ICs
(DS1825) that come with a unique 64 bit serial number on each device.

I have an application where that serial number would be useful but I
don't need temperature sensor part.

Are there other manufactures that sell a ROM or similar with a unique
serial number onboard? does't have to be 64 bits

thanks.
 
J

James Beck

Jan 1, 1970
0
I noticed that Dallas semi has some "1 wire" temperature sensor ICs
(DS1825) that come with a unique 64 bit serial number on each device.

I have an application where that serial number would be useful but I
don't need temperature sensor part.

Are there other manufactures that sell a ROM or similar with a unique
serial number onboard? does't have to be 64 bits

thanks.
Are you sure they just don't have a serial number IC or maybe a MAC
address 1 wire IC?
 
P

PeteS

Jan 1, 1970
0
James said:
Are you sure they just don't have a serial number IC or maybe a MAC
address 1 wire IC?
Maxim

DS2411R - Unique serial number chip, nothing else.

Cheers

PeteS
 
M

Mook Johnson

Jan 1, 1970
0
Seems like such a useful feature that more companies would be doing it.

My question should have been "are there any other manufacturers making this
type of part?"
 
I

Impmon

Jan 1, 1970
0
Are there other manufactures that sell a ROM or similar with a unique
serial number onboard? does't have to be 64 bits

I know Texas Instrument also sells the electronic serial number ICs.
It was used in a number of early Apple laptop battery packs and it had
2 pins but looked like a plain vanilla TO-92 transistor. 1 pin for
ground, and 1 for data.
 
M

Mike Harrison

Jan 1, 1970
0
Seems like such a useful feature that more companies would be doing it.

Except that most products have other ways of including a serial number - eeprom, embedded in program
memory etc. so the cost of a seperate chip will often not be justified.
 
P

PeteS

Jan 1, 1970
0
Mook said:
Seems like such a useful feature that more companies would be doing it.

My question should have been "are there any other manufacturers making this
type of part?"

Xilinx has added it to their Spartan 3A series so if you happen to have
an FPGA (which I do in the design that needs it) you get it for free.

Cheers

PeteS
 
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