參數(shù)資料
型號: V54C365804VCT8L
廠商: MOSEL-VITELIC
元件分類: DRAM
英文描述: 8M X 8 SYNCHRONOUS DRAM, 7 ns, PDSO54
封裝: 0.400 INCH, PLASTIC, TSOP2-54
文件頁數(shù): 14/54頁
文件大?。?/td> 453K
代理商: V54C365804VCT8L
21
V54C365804VC Rev. 0.6 September 1999
MOSEL VITELIC
V54C365804VC
6.2 Write Interrupted by a Read
(Burst Length = 4, CAS latency = 2, 3, 4)
7. Burst Write with Auto-Precharge
Burst Length = 2, CAS latency = 2, 3, 4)
COMMAND
NOP
WRITE A
READ B
NOP
tCK2, I/O’s
CAS latency = 2
DIN A0
tCK3, I/O’s
CAS latency = 3
DIN A0
tCK4, I/O’s
CAS latency = 4
DIN A0
CLK
T0
T2
T1
T3
T4
T5
T6
T7
T8
Input data for the Write is ignored.
DOUT B3
DOUT B0
DOUT B1
DOUT B2
DOUT B3
DOUT B0
DOUT B1
DOUT B2
don’t care
DOUT B0
DOUT B1
DOUT B2
Input data must be removed from the I/O’s at least one clock
cycle before the Read dataAPpears on the outputs to avoid
data contention.
COMMAND
NOP
WRITE A
Auto-Precharge
CLK
T0
T2
T1
T3
T4
T5
T6
T7
T8
NOP
BANK A
ACTIVE
NOP
DIN A0
DIN A1
DIN A0
DIN A1
*
I/O’s
CAS latency = 3
I/O’s
CAS latency = 2
I/O’s
CAS latency = 4
Begin Autoprecharge
Bank can be reactivated after trp
*
tWR
tRP
DIN A0
DIN A1
tWR
tRP
NOP
*
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