K7R643682M K7R641882M K7R640982M Preliminary 2Mx36 & 4Mx18 & 8Mx9 QDRTM II b2 SRAM Document Title 2Mx36-bit, 4Mx18-bit, 8Mx9-bit QDRTM II b2 SRAM Revision History Rev.
No.
History 0.
0 1.
Initial document.
0.
1 1.
Update AC timing characteristics.
2.
Change the JTAG instruction coding.
0.
2 1.
Change the AC timing characteristics.
(-25/-20 parts) 2.
Correct the overshoot and undershoot timing diagrams.
3.
Change the JTAG Block diagrams.
4.
Update the Boundary scan exit order.
0.
3 1.
Correct the JTAG ID register definition 2.
Correct the AC timing parameter (delete the tKHKH Max value) 0.
4 1.
Add the Power-on Sequence specification 0.
5 1.
Correct the pin name table Draft Date Sep, 14...

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