W9725G6JB Datasheet, PDF (82/87 Pages) Winbond – 4M  4 BANKS  16 BIT DDR2 SDRAM

W9725G6JB
10.25 Burst read with Auto-precharge followed by an activation to the same bank
(tRP Limit): RL=5 (AL=2, CL=3, internal tRCD=3, BL=4, tRTP ≤ 2clks)
T0
T1
T2
T3
T4
T5
T6
T7
T8
CLK/CLK
CMD
DQS,
DQS
DQ's
Post CAS
READA
A10 = 1
NOP
NOP
≥ tRAS min.
NOP
NOP
NOP
Auto-precharge begins
NOP
Bank A
Activate
AL = 2
CL = 3
RL = 5
≥ tRC
tRP min.
Dout Dout Dout Dout
A0 A1 A2 A3
NOP
10.26 Burst write with Auto-precharge (tRC Limit): WL=2, WR=2, BL=4, tRP=3
T0
T1
T2
T3
T4
T5
T6
T7
Tm
CLK/CLK
CMD
DQS,
DQS
DQ's
Post CAS
WRA Bank A
A10 = 1
NOP
WL= RL- 1 = 2
NOP
NOP
NOP
NOP
NOP
NOP
Completion of the Burst Write
Auto-precharge Begins
≥ WR
≥ tRP
DIN DIN DIN DIN
A0
A1
A2
A3
tRC min.
Bank A
Activate
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Publication Release Date: Nov. 29, 2011
Revision A02