easy question about memory BIST

[akrlot]

hi;
as we know the BIST is integrated with the memory and we dont need an external tester.my question is when the test of memory is done by the BIST?
thx

 

[eda_wiz]

hi;
as we know the BIST is integrated with the memory and we dont need an external tester.my question is when the test of memory is done by the BIST?
thx

Since Bist testing is very simple, chip can be tested at anytime.. be it in fab or in the system. typically assert test pin and look for the test pass/fail pin status.

 

[Ace-X]

Also, usually BIST can be accessed through the JTAG commands. And, as it was stated already by whizkid, there are some memory BIST, that make periodic tests when memory sub-system is in idle mode.

 

[JesseKing]

but if i introduce a memory as a IP core in some circuit, how can i know the assert test pins' status?

 

[power-twq]

there a finish output and pass/fail output from bist,

finish indicate bist is done and pass/fail indicate

bist is pass or fail after bist is done.

hi;
as we know the BIST is integrated with the memory and we dont need an external tester.my question is when the test of memory is done by the BIST?
thx

 

[soccer]

anytime!
in chip simulation, or die testing.