K7R643682M
K7R641882M
TM
K7R640982M 2Mx36 & 4Mx18 & 8Mx9 QDR II b2 SRAM
72Mb QDRII SRAM Specification
165 FBGA with Pb & Pb-Free
(RoHS compliant)
INFORMATION IN THIS DOCUMENT IS PROVIDED IN RELATION TO SAMSUNG PRODUCTS,
AND IS SUBJECT TO CHANGE WITHOUT NOTICE.
NOTHING IN THIS DOCUMENT SHALL BE CONSTRUED AS GRANTING ANY LICENSE,
EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE,
TO ANY INTELLECTUAL PROPERTY RIGHTS IN SAMSUNG PRODUCTS OR TECHNOLOGY.
ALL INFORMATION IN THIS DOCUMENT IS PROVIDED
ON ASAS I BASIS WITHOUT GUARANTEE OR WARRANTY OF ANY KIND.
1. For updates or additional information about Samsung products, contact your nearest Samsung office.
2. Samsung products are not intended for use in life support, critical care, medical, safety equipment, or simi-
lar applications where Product failure could result in loss of life or personal or physical harm, or any military
or defense application, or any governmental procurement to which special terms or provisions may apply.
* Samsung Electronics reserves the right to change products or specification without notice.
Rev. 1.3 March 2007
- 1 -K7R643682M
K7R641882M
TM
K7R640982M 2Mx36 & 4Mx18 & 8Mx9 QDR II b2 SRAM
Document Title
TM
2Mx36-bit, 4Mx18-bit, 8Mx9-bit QDR II b2 SRAM
Revision History
Draft Date Remark
Rev. No. History
Advance
Sep, 14 2002
0.0 1. Initial document.
Preliminary
Oct. 24, 2002
0.1 1. Update AC timing characteristics.
2. Change the JTAG instruction coding.
Preliminary
Feb. 18, 2003
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.
Preliminary
Mar. 20, 2003
0.3 1. Correct the JTAG ID register definition
2. Correct the AC timing parameter (delete the tKHKH Max value)
Preliminary
Aug. 16, 2004
0.4 1. Add the Power-on Sequence specification
Preliminary
Oct. 18, 2004
0.5 1. Correct the pin name table
Preliminary
May. 17, 2005
0.6 1. Update the power consumption (Icc & Isb)
Final
Aug. 2, 2005
1.0 1. Finalize the datasheet
Final
Jul. 6, 2006
1.1 1. Add Pb-free comment
2. Change the Max. clock cycle time in AC TIMING CHARACTERIS-
TICS
Final
Jan. 23, 2007
1.2 1. Correct the pin name table
Final
Mar. 5, 2007
1.3 1. Add Detail Specification of Power up Sequence
Rev. 1.3 March 2007
- 2 -