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參數資料
型號: W946432AD
廠商: WINBOND ELECTRONICS CORP
英文描述: 512K X 4 BANKS X 32 BITS DDR SDRAM
中文描述: 為512k × 4銀行× 32位DDR內存
文件頁數: 21/40頁
文件大?。?/td> 462K
代理商: W946432AD
W946432AD
21
Figure8:RANDOM READ ACCESSES – REQUIRED CAS LATENCIES
READ
NOP
COMMAND
CK
CK
DQS
DQ
DON'T CARE
Bank,
Col n
RANDOM READ ACCESSES - REQUIRED CAS LATENCIES
ADDRESS
CL=3
NOP
n
DO
b
Bank,
Col b
READ
READ
READ
READ
Bank,
Col x
Bank,
Col g
DO
n'
x
DO
x'
g
DO
b'
DO n, etc. = Data Out from column n, etc.
n', etc. = the next Data Out following DO n, etc. according to the programmed burst order
Burst Length = 4
Reads are to active rows in any banks
Shown with nominal tAC, tDQSCK, and tDQSQ
Figure9:BURST READ STOP– REQUIRED CAS LATENCIES
NOP
BST
READ
NOP
NOP
NOP
COMMAND
CK
CK
DQS
DQ
DON'T CARE
Bank,
Col n
TERMINATING A READ BURST - REQUIRED CAS LATENCIES
ADDRESS
CL=3
DO
n
DO n = Data Out from column n
Cases shown are bursts of 8 terminated after 4 data elements
Shown with nominal tAC, tDQSCK, and tDQSQ
相關PDF資料
PDF描述
W963A6BBN 512K WORD X 16 BIT LOW POWER PSEUDO SRAM
W963A6BBN70 512K WORD X 16 BIT LOW POWER PSEUDO SRAM
W963A6BBN70E 512K WORD X 16 BIT LOW POWER PSEUDO SRAM
W963A6BBN70I 512K WORD X 16 BIT LOW POWER PSEUDO SRAM
W963A6BBN80 512K WORD X 16 BIT LOW POWER PSEUDO SRAM
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