GS8672D38BE-550I Datasheet, PDF (10/30 Pages) GSI Technology – 72Mb SigmaQuad-II+TM Burst of 4 ECCRAMTM

GS8672D20/38BE-633/550/500/450/400
Byte Write Clock Truth Table
BW
BW
BW
BW
Current Operation
D
D
D
D
K
K
K
K
K
K
K
K
K
(t_n+1)
(t_n+1½)
(t_n+2)
(t_n+2½)
(t_n)
(t_n+1)
(t_n+1½)
(t_n+2)
(t_n+2½)
T
T
T
T
Write
Dx stored if BWn = 0 in all four data transfers
D0
D1
D2
D3
T
F
F
F
Write
Dx stored if BWn = 0 in 1st data transfer only
D0
X
X
X
F
T
F
F
Write
Dx stored if BWn = 0 in 2nd data transfer only
X
D1
X
X
F
F
T
F
Write
Dx stored if BWn = 0 in 3rd data transfer only
X
X
D2
X
F
F
F
T
Write
Dx stored if BWn = 0 in 4th data transfer only
X
X
X
D3
F
F
F
F
Write Abort
No Dx stored in any of the four data transfers
X
X
X
X
Notes:
1. “1” = input “high”; “0” = input “low”; “X” = input “don’t care”; “T” = input “true”; “F” = input “false”.
2. If one or more BWn = 0, then BW = “T”, else BW = “F”.
Rev: 1.03c 8/2017
10/30
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
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