參數(shù)資料
型號(hào): CY7C1486V25-250BGXI
廠商: CYPRESS SEMICONDUCTOR CORP
元件分類: DRAM
英文描述: 72-Mbit (2M x 36/4M x 18/1M x 72) Pipelined Sync SRAM
中文描述: 1M X 72 CACHE SRAM, 3 ns, PBGA209
封裝: 14 X 22 MM, 1.76 MM HEIGHT, LEAD FREE, FBGA-209
文件頁(yè)數(shù): 23/31頁(yè)
文件大?。?/td> 530K
代理商: CY7C1486V25-250BGXI
CY7C1480V25
CY7C1482V25
CY7C1486V25
Document #: 38-05282 Rev. *G
Page 23 of 31
Write Cycle Timing
[20, 21]
Note:
21.Full width write can be initiated by either GW LOW; or by GW HIGH, BWE LOW and BW
X
LOW.
Switching Waveforms
(continued)
tCYC
tCL
CLK
ADSP
tADH
tADS
ADDRESS
tCH
OE
ADSC
CE
tAH
tAS
A1
tCEH
tCES
BWE,
BW
X
Data Out (Q)
High-Z
ADV
BURST READ
BURST WRITE
D(A2)
D(A2 + 1)
D(A2 + 1)
D(A1)
D(A3)
D(A3 + 1)
D(A3 + 2)
D(A2 + 3)
A2
A3
Data In (D)
Extended BURST WRITE
D(A2 + 2)
Single WRITE
tADH
tADS
tADH
tADS
tOEHZ
tADVH
tADVS
tWEH
tWES
tDH
tDS
GW
tWEH
tWES
Byte write signals are
ignored for first cycle when
ADSP initiates burst
ADSC extends burst
ADV suspends burst
DON’T CARE
UNDEFINED
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CY7C1480V25_06 72-Mbit (2M x 36/4M x 18/1M x 72) Pipelined Sync SRAM
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