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參數(shù)資料
型號(hào)： W28V400B
廠商： WINBOND ELECTRONICS CORP
英文描述： 4M(512K x 8/256K x 16) SMARTVOLTAGE FLASH MEMORY
中文描述： 4分（為512k × 8/256K × 16）SMARTVOLTA通用閃存
文件頁(yè)數(shù)： 45/48頁(yè)
文件大?。?/td> 1822K
代理商： W28V400B
W28V400B/T
Publication Release Date: April 11, 2003
- 45 -
Revision A4
Recommended Operating Conditions
At Device Power-up
AC timing illustrated in Figure 18 is recommended for the supply voltages and the control signals at
device power-up. If the timing in the figure is ignored, the device may not operate correctly.
VH
VL
DD
VIH
VIL
VH
VL
#OE
Valid Address
V
DD
V
Vss
(min)
t
VR
t
R
t
2VPH
t
PHQV
*1
#RESETp)
*2
Vpp
(V)
Vss
V
PPH1/2
ADDRESS
VIH
VIL
(A)
t
t
RorF
t
t
Ror F
t
AVQV
#CE (E)
t
R
t
F
t
ELQV
t
GLQV
#WE (W)
VH
VL
(G)
t
F
t
R
#WP (S)
VH
VL
DATA(D/Q)
VOH
VOL
Valid Output
HIGH Z
*1 t
5VPH
for the device in 5V operations.
*2 To prevent the unwanted writes, system designers should consider the V
PP
switch, which connects V
PP
to V
SS
during read
operations and V
PPH1/2/3
during write or erase operations.
Figure 18. AC Timing at Device Power-up
For the AC specifications t
VR
, t
R
, t
F
in the figure, refer to the next page. See the “ELECTRICAL SPECIFICATIONS“ described in
specifications for the supply voltage range, the operating temperature and the AC specifications not shown in the next page.
相關(guān)PDF資料
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
W28V400BT85C 制造商:WINBOND 制造商全稱:Winbond 功能描述:4M(512K x 8/256K x 16) SMARTVOLTAGE FLASH MEMORY
W28V400T 制造商:WINBOND 制造商全稱:Winbond 功能描述:4M(512K x 8/256K x 16) SMARTVOLTAGE FLASH MEMORY
W28V400TT85C 制造商:WINBOND 制造商全稱:Winbond 功能描述:4M(512K x 8/256K x 16) SMARTVOLTAGE FLASH MEMORY
W28WH 制造商:ETERNA 功能描述:TRACKLIGHT, FLEXIBLE TRACK COUPLER
W28-X01B-3 制造商:TE Connectivity 功能描述:
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