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GS8662QT19BGD-250I Datasheet(PDF) 9 Page - GSI Technology

Part # GS8662QT19BGD-250I
Description  72Mb SigmaQuad-IITM Burst of 2 SRAM
Download  29 Pages
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Manufacturer  GSI [GSI Technology]
Direct Link  http://www.gsitechnology.com
Logo GSI - GSI Technology

GS8662QT19BGD-250I Datasheet(HTML) 9 Page - GSI Technology

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Separate I/O SigmaQuad-II B2 SigmaQuad-II SRAM Write Truth Table
A
W
BWn/NWn BWn/NWn
Input Next State
D
D
K
(tn + ½)
K
(tn)
K
(tn)
K
(tn + ½)
K
↑, K ↑
(tn), (tn + ½)
K
(tn)
K
(tn + ½)
V
0
0
0
Write Byte Dx0, Write Byte Dx1
D0
D1
V
0
0
1
Write Byte Dx0, Write Abort Byte Dx1
D0
X
V
0
1
0
Write Abort Byte Dx0, Write Byte Dx1
X
D1
X
0
1
1
Write Abort Byte Dx0, Write Abort Byte Dx1
X
X
X
1
X
X
Deselect
X
X
Notes:
1. X = Don’t Care, H = High, L = Low, V = Valid.
2. W is evaluated on the rising edge of K.
3. D0 and D1 are the first and second data input transfers in a write.
4. BWn represents any of the Byte Write Enable inputs (BW0, BW1, etc.). NWn represents any of the Nybble Write Enable inputs (NW0,
NW1).
GS8662QT07/10/19/37BD-357/333/300/250/200
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
Rev: 1.00a 11/2011
9/28
© 2011, GSI Technology
x36 Byte Write Enable (BWn) Truth Table
BW0
BW1
BW2
BW3
D0–D8
D9–D17
D18–D26
D27–D35
1
1
1
1
Don’t Care
Don’t Care
Don’t Care
Don’t Care
0
1
1
1
Data In
Don’t Care
Don’t Care
Don’t Care
1
0
1
1
Don’t Care
Data In
Don’t Care
Don’t Care
0
0
1
1
Data In
Data In
Don’t Care
Don’t Care
1
1
0
1
Don’t Care
Don’t Care
Data In
Don’t Care
0
1
0
1
Data In
Don’t Care
Data In
Don’t Care
1
0
0
1
Don’t Care
Data In
Data In
Don’t Care
0
0
0
1
Data In
Data In
Data In
Don’t Care
1
1
1
0
Don’t Care
Don’t Care
Don’t Care
Data In
0
1
1
0
Data In
Don’t Care
Don’t Care
Data In
1
0
1
0
Don’t Care
Data In
Don’t Care
Data In
0
0
1
0
Data In
Data In
Don’t Care
Data In
1
1
0
0
Don’t Care
Don’t Care
Data In
Data In
0
1
0
0
Data In
Don’t Care
Data In
Data In
1
0
0
0
Don’t Care
Data In
Data In
Data In
0
0
0
0
Data In
Data In
Data In
Data In


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