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IS61QDB24M18-200M3L Datasheet(PDF) 3 Page - Integrated Silicon Solution, Inc

Part # IS61QDB24M18-200M3L
Description  72 Mb (2M x 36 & 4M x 18) QUAD (Burst of 2) Synchronous SRAMs
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Manufacturer  ISSI [Integrated Silicon Solution, Inc]
Direct Link  http://www.issi.com
Logo ISSI - Integrated Silicon Solution, Inc

IS61QDB24M18-200M3L Datasheet(HTML) 3 Page - Integrated Silicon Solution, Inc

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Integrated Silicon Solution, Inc. — 1-800-379-4774
3
Rev. A
05/14/09
72 Mb (2M x 36 & 4M x 18)
QUAD (Burst of 2) Synchronous SRAMs
Pin Description
Symbol
Pin Number
Description
K, K
6B, 6A
Input clock.
C, C
6P, 6R
Input clock for output data control.
CQ, CQ
11A, 1A
Output echo clock.
Doff
1H
DLL disable when low.
SA
3A, 9A, 4B, 8B, 5C, 6C, 7C, 5N, 6N, 7N, 4P, 5P, 7P, 8P
3R, 4R, 5R, 7R, 8R, 9R
2M x 36 address inputs.
SA
10A, 3A,9A, 4B, 8B, 5C, 6C, 7C, 5N, 6N, 7N, 4P, 5P, 7P, 8P, 3R
4R, 5R, 7R, 8R, 9R
4M x 18 address inputs.
D0–D8
D9–D17
D18–D26
D27–D35
10P, 11N, 11M, 10K, 11J, 11G, 10E, 11D, 11C
10N, 9M, 9L, 9J, 10G, 9F, 10D, 9C, 9B
3B, 3C, 2D, 3F, 2G, 3J, 3L, 3M, 2N
1C, 1D, 2E, 1G, 1J, 2K, 1M, 1N, 2P
2M x 36 data inputs.
Q0–Q8
Q9–Q17
Q18–Q26
Q27–Q35
11P, 10M, 11L, 11K, 10J, 11F, 11E, 10C, 11B
9P, 9N, 10L, 9K, 9G, 10F, 9E, 9D, 10B
2B, 3D, 3E, 2F, 3G, 3K, 2L, 3N, 3P
1B, 2C, 1E, 1F, 2J, 1K, 1L, 2M, 1P
2M x 36 data outputs.
D0–D8
D9–D17
10P, 11N, 11M, 10K, 11J, 11G, 10E, 11D, 11C
3B, 3C, 2D, 3F, 2G, 3J, 3L, 3M, 2N
4M x 18 data inputs.
Q0–Q8
Q9–Q17
11P, 10M, 11L, 11K, 10J, 11F, 11E, 10C, 11B
2B, 3D, 3E, 2F, 3G, 3K, 2L, 3N, 3P
4M x 18 data outputs.
W
4A
Write control, active low.
R
8A
Read control, active low.
BW0, BW1, BW2, BW3 7B, 7A, 5A,5B
2M x 36 byte write control, active low.
BW0, BW1
7B, 5A
4M x 18 byte write control, active low.
VREF
2H, 10H
Input reference level.
VDD
5F, 7F, 5G, 7G, 5H, 7H, 5J, 7J, 5K, 7K
Power supply.
VDDQ
4E,8E,4F,8F,4G,8G,3H,4H,8H,9H,4J,8J,4K,8K,4L,8L
Output power supply.
VSS
4C, 8C, 4D, 5D, 6D, 7D, 8D, 5E, 6E, 7E, 6F, 6G, 6H, 6J,
6K, 5L, 6L, 7L, 4M, 5M, 6M, 7M, 8M, 4N, 8N
Ground
ZQ
11H
Output driver impedance control.
TMS, TDI, TCK
10R, 11R, 2R
IEEE 1149.1 test inputs (1.8V LVTTL lev-
els).
TD
NC
NC
2A, 10A
2A, 7A,1B,5B,9B,10B,1C,2C,9C,1D,9D,10D,1E,2E,9E,1F,9F,10F,
1G, 9G,10G,1J,2J,9J,1K,2K,9K,1L,9L,10L,1M,2M,9M,1N,9N,10N,
1P, 2P, 9P
2Mx36, No Connect
4Mx18, No Connect
O
1R
IEEE 1149.1 test output (1.8V LVTTL level).


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