Why Memory devices doesn't have JTAG interface

[tramu]

Dear,

I don't see any memory with JTAG interface. Why memories generally do not have JTAG though they are coming in BGA packages?

Please respond.

Regards,
Thulasi

 

[Vengateswaran]

There is no use in debugging the memory. They do not store the data or instructions in step wise manner.That's why.

 

[HTA]

Since there is a full access to all memory cells via the address and data lines, there is also no need for JTAG on chip.

Enjoy your design work!