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參數資料
型號: 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
文件頁數: 25/48頁
文件大?。?/td> 1822K
代理商: W28V400B
W28V400B/T
Publication Release Date: April 11, 2003
- 25 -
Revision A4
AC Input/Output Test Conditions
2.7
0.0
INPUT
1.35
1.35 OUTPUT
TEST POINTS
AC test inputs are driven at 2.7V for a Logic "1" and 0.0V for a Logic "0". Input timing begins, and output timing ends, at 1.35V.
Input rise and fall times (10% to 90%) <10 nS.
Figure 9. Transient Input/Output Reference Waveform for V
DD
= 2.7V to 3.6V
3.0
0.0
INPUT
1.5
1.5
OUTPUT
TEST POINTS
AC test inputs are driven at 3.0V for a Logic "1" and 0.0V for a Logic "0". Input timing begins, and output timing ends, at 1.5V.
Input rise and fall times (10% to 90%) <10 nS.
Figure 10. Transient Input/Output Reference Waveform for V
DD
= 3.3V
±
0.3V and V
DD
= 5V
±
0.25V
(High Speed Testing Configuration)
2.4
0.45
INPUT
2.0
0.8
OUTPUT
TEST POINTS
0.8
2.0
AC test inputs are driven at V
OH
(2.4 V
TTL
) for a Logic "1" and V
OL
(0.45 V
TTL
) for a Logic "0." Input timing begins at V
IH
(2.0
V
TTL
) and V
IL
(0.8 V
TTL
). Output timing ends at V
IH
and V
IL
. Input rise and fall times (10% to 90%) <10 nS.
Figure 11. Transient Input/Output Reference Waveform for V
DD
= 5V
±
0.5V
(Standard Testing Configuration)
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