WED2DL32512V40BC 查看數據表（PDF） - White Electronic Designs Corporation
零件编号
产品描述 (功能)
生产厂家
WED2DL32512V40BC Datasheet PDF : 9 Pages
| |||
WED2DL32512V
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 ZZ is in a HIGH state.
After the device enters SNOOZE MODE, all inputs except ZZ become
gated inputs and 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. There-
fore, SNOOZE MODE must not be initiated until valid pending
operations are completed.
SNOOZE MODE
Description
Current during SNOOZE MODE
ZZ active to input ignored
ZZ inactive to input sampled
ZZ active to snooze current
ZZ inactive to exit snooze current
Conditions
ZZ ≥ VIH
Symbol
ISB2Z
tZZ
tRZZ
tZZI
tRZZI
Min
2(tKC)
Max
10
2(tKC)
2(tKC)
Units
Notes
mA
ns
1
ns
1
ns
1
ns
1
FIG. 2 SNOOZE MODE TIMING DIAGRAM
CLOCK
ZZ
ISUPPLY
ALL INPUTS
(except ZZ)
Output (Q)
tZZ
tZZI
IISB2Z
HIGH-Z
tRZZ
tRZZI
DESELECT or READ Only
DON'T CARE
White Electronic Designs Corporation • (508) 366-5151 • www.whiteedc.com
6
Share Link: 