WED2ZL361MS42BI Ver la hoja de datos (PDF) - White Electronic Designs Corporation
Número de pieza
componentes Descripción
Fabricante
WED2ZL361MS42BI Datasheet PDF : 12 Pages
| |||
White Electronic Designs
WED2ZL361MS
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 become
gated inputs and are ignored. ZZ is an asynchronous, ac-
tive 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 operations
are completed.
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
SNOOZE MODE
Conditions
ZZ ≥ VIH
Symbol
ISB2Z
tZZ
tRZZ
tZZI
tRZZI
Min
2(tKC)
Max
10
2(tKC)
2(tKC)
Units
mA
ns
ns
ns
ns
Notes
1
1
1
1
FIG 1 SNOOZE MODE TIMING DIAGRAM
CLOCK
tZZ
ZZ
tZZI
ISUPPLY
IISB2Z
ALL INPUTS
(except ZZ)
tRZZ
tRZZI
DESELECT or READ Only
Output (Q)
HIGH-Z
DON'T CARE
White Electronic Designs Corp. reserves the right to change products or specifications without notice.
Oct, 2002
Rev. 5
6
White Electronic Designs Corporation • (602) 437-1520 • www.wedc.com
Share Link: 