GS8662Q18GE-250 GSI TECHNOLOGY, GS8662Q18GE-250 Datasheet - Page 8

• Manufacturer Part Number: GS8662Q18GE-250
• Manufacturer: GSI TECHNOLOGY

SigmaQuad-II B2 SRAM DDR Write
The write port samples the status of the W pin at each rising edge of K and the Address Input pins on the following rising edge of
K. A low on the Write Enable-bar pin, W, begins a write cycle. The first of the data-in pairs associated with the write command is
clocked in with the same rising edge of K used to capture the write command. The second of the two data in transfers is captured on
the rising edge of K along with the write address. Clocking in a high on W causes a write port deselect cycle.
Rev: 1.08 12/2007
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
Address
BWx
CQ
CQ
W
R
D
C
C
Q
K
K
A
A
Write A
A+1
A+1
A
SigmaQuad-II B2 Double Data Rate SRAM Write First
B
Read B
C
D
D
8/35
Read C Write D
D+1
D+1
D
B
NOP
GS8662Q08/09/18/36E-278/250/200/167
B+1
C
E
F
F
Read E Write F
C+1
F+1
F+1
F
G
H
H
Read G Write H
© 2005, GSI Technology
H+1
H+1
H
E
NOP
E+1