參數(shù)資料
型號: CY62177DV30L-70BAI
廠商: CYPRESS SEMICONDUCTOR CORP
元件分類: DRAM
英文描述: 16-Mbit (2M x 8) Static RAM
中文描述: 2M X 16 STANDARD SRAM, 70 ns, PBGA48
封裝: 8 X 9.50 MM, 1.20 MM HEIGHT, FBGA-48
文件頁數(shù): 7/10頁
文件大?。?/td> 856K
代理商: CY62177DV30L-70BAI
Document #: 001-07721 Rev. *B
Page 7 of 10
CY62168EV30 MoBL
Figure 3
shows WE controlled write cycle waveforms.
[14, 18, 19]
Figure 3. Write Cycle No. 1
Figure 4
shows
CE
1
or CE
2
controlled write cycle waveforms.
[14, 18, 19]
Figure 4. Write Cycle No. 2
Switching Waveforms
(continued)
t
HD
t
SD
t
PWE
t
SA
t
HA
t
AW
t
SCE
t
WC
t
HZOE
VALID DATA
NOTE 20
CE
1
ADDRESS
CE
2
WE
DATA IO
OE
t
HD
t
SD
t
PWE
t
HA
t
AW
t
SCE
t
WC
t
HZOE
VALID DATA
t
SA
NOTE 20
CE
1
ADDRESS
CE
2
WE
DATA IO
OE
Notes
18.Data IO is high impedance if OE = V
IH
.
19.If CE
1
goes HIGH and CE
2
goes LOW simultaneously with WE = V
IH
, the output remains in a high impedance state.
20.During this period the IOs are in output state. Do not apply input signals.
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