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參數(shù)資料
| 型號： | WED2ZL361MSJ42BC |
| 廠商： | WHITE ELECTRONIC DESIGNS CORP |
| 元件分類： | SRAM |
| 英文描述： | 1M X 36 MULTI DEVICE SRAM MODULE, 4.2 ns, PBGA119 |
| 封裝： | PLASTIC, BGA-119 |
| 文件頁數(shù)： | 9/12頁 |
| 文件大?。?/td> | 0K |
| 代理商： | WED2ZL361MSJ42BC |
6
White Electronic Designs Corporation Westborough MA (508) 366-5151
WED2ZL361MSJ
White Electronic Designs
SNOOZE MODE
SNOOZE MODE is a low-current, “power-down” mode in
which the device is deselected and current is reduced to
ISB2Z. The duration of SNOOZE MODE is dictated by the
length of time Z is in a HIGH state. After the device enters
SNOOZE MODE, all inputs except ZZ and CLK are ignored.
ZZ is an asynchronous, active HIGH input that causes the
device to enter SNOOZE MODE.
When ZZ becomes a logic HIGH, ISB2Z is guaranteed after
the setup time tZZ is met. Any READ or WRITE operation
pending when the device enters SNOOZE MODE is not
guaranteed to complete successfully. Therefore, SNOOZE
MODE must not be initiated until valid pending opera-
tions are completed.
SNOOZE MODE
Description
Conditions
Symbol
Min
Max
Units
Notes
Current during SNOOZE MODE
ZZ
VIH
ISB2Z
10
mA
ZZ active to input ignored
tZZ
2(tKC)ns
1
ZZ inactive to input sampled
tRZZ
2(tKC)ns
1
ZZ active to snooze current
tZZI
2(tKC)ns
1
ZZ inactive to exit snooze current
tRZZI
ns
1
FIG. 2
ZZ
ISUPPLY
CLOCK
ALL INPUTS
(except ZZ)
Output (Q)
tZZ
tZZI
tRZZ
tRZZI
HIGH-Z
DESELECT or READ Only
IISB2Z
DON'T CARE
SNOOZE MODE TIMING DIAGRAM
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