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參數(shù)資料
| 型號(hào)： | W28F321TB70L |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | PROM |
| 英文描述： | 2M X 16 FLASH 1.8V PROM, 70 ns, PBGA48 |
| 封裝： | 7 X 7 MM, 0.75 MM PITCH, TFBGA-48 |
| 文件頁數(shù)： | 18/28頁 |
| 文件大?。?/td> | 372K |
| 代理商： | W28F321TB70L |
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W28F321BB/TB
Publication Release Date: February 17, 2003
- 25 -
Revision A2
5. ADDITIONAL INFORMATION
Recommended Operating Conditions
At Device Power-Up
AC timing illustrated in Figure A-1 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.
VIH
VIL
DD
VIH
V IL
VIH
VIL
#OE
Valid Address
VDD
V
Vss
(min)
tVR
t2VPH
tPHQV
#RESET (p)
*1
Vpp
(V)
Vss
V PPH1/2
ADDRESS
VIH
VIL
(A)
t
tR or F
t
tR or F
tAVQV
#CE
(E)
tR
tF
t ELQV
t GLQV
#WE (W)
VIH
VIL
(G)
tF
tR
#WP
(S)
VIH
VIL
DATA (D/Q)
VOH
VOL
Valid Output
HIGH Z
*1 To prevent the unwanted writes, system designers should consider the design, which applies VPP to 0V during read
operations and VPPH1/2 during write or erase operations.
Figure A-1. AC Timing at Device Power-up
For the AC specifications tVR, tR, tF 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.
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