gs8662dt11bgd-500i GSI Technology, gs8662dt11bgd-500i Datasheet - Page 9

• Manufacturer Part Number: gs8662dt11bgd-500i
• Description: 72mb Sigmaquad-ii+tm Burst Of 4 Sram
• Manufacturer: GSI Technology

Separate I/O SigmaQuad II+ B4 SRAM Truth Table
Rev: 1.00 5/2011
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
Notes:
1.
2.
3.
4.
5.
Operation
Previous
Deselect
Deselect
Deselect
Write
Read
Read
Write
(t
K 
“1” = input “high”; “0” = input “low”; “V” = input “valid”; “X” = input “don’t care”
“—” indicates that the input requirement or output state is determined by the next operation.
Q0, Q1, Q2, and Q3 indicate the first, second, third, and fourth pieces of output data transferred during Read operations.
D0, D1, D2, and D3 indicate the first, second, third, and fourth pieces of input data transferred during Write operations.
Users should not clock in metastable addresses.
n-1
)
K 
(t
A
X
X
X
V
V
V
V
n
)
K 
(t
R
X
X
1
1
1
0
0
n
)
K 
(t
W
X
X
X
1
1
0
0
n
)
Operation
Current
Deselect
Deselect
Deselect
Read
Read
Write
Write
K 
(t
n
)
(t
K 
D2
D0
D0
D2
n+1
D
X
X
X
9/34
)
(t
K 
n+1½
D3
D1
D1
D3
D
X
X
X
)
(t
K 
D2
D2
n+2
—
—
—
—
—
D
GS8662DT20/38BD-550/500/450/400/350
)
(t
GS8662DT06/11BD-500/450/400/350
K 
n+2½
D3
D3
—
—
—
—
—
D
)
(t
Hi-Z
Hi-Z
Hi-Z
K 
n+2½)
Q2
Q0
Q2
Q0
Q
(t
Hi-Z
Hi-Z
Hi-Z
K 
Q3
Q1
Q3
Q1
n+3
Q
)
© 2011, GSI Technology
(t
K 
n+3½
Q2
Q2
—
—
—
—
Q
—
)
(t
K 
Q3
Q3
n+4
Q
—
—
—
—
—
)