Datasheet

DC and AC parameters M41ST87Y, M41ST87W
46/54 Doc ID 9497 Rev 10
Figure 28. Power down/up mode AC waveforms
1. E
CON
available in the SOX28 package only.
Table 19. Power down/up AC characteristics
Symbol Parameter
(1)
1. Valid for ambient operating temperature: T
A
= –40 to 85 °C; V
CC
= 4.5 to 5.5 V or 2.7 to 3.6 V (except where noted).
Min Typ Max Unit
t
F
(2)
2. V
PFD
(max) to V
PFD
(min) fall time of less than t
F
may result in deselection/write protection not occurring until
200 µs after V
CC
passes V
PFD
(min).
V
PFD
(max) to V
PFD
(min) V
CC
fall time 300 µs
t
FB
(3)
3. V
PFD
(min) to V
SS
fall time of less than t
FB
may cause corruption of RAM data.
V
PFD
(min) to V
SS
V
CC
fall time 10 µs
t
PD
EX at V
IH
before power down 0 µs
t
PFD
PFI to PFO propagation delay 15 25 µs
t
R
V
PFD
(min) to V
PFD
(max) V
CC
rise time 10 µs
t
RB
V
SS
to V
PFD
(min) V
CC
rise time 1 µs
t
rec
Power-up deselect time 96 98
(4)
4. Programmable (see Table 12 on page 40)
ms
AI07085
V
CC
INPUTS
(PER CONTROL INPUT)
OUTPUTS
DON'T CARE
HIGH-Z
t
F
t
FB
t
R
t
PD
t
RB
VALID VALID
(PER CONTROL INPUT)
RECOGNIZEDRECOGNIZED
V
PFD
(max)
V
PFD
(min)
V
SO
t
rec
RST
E
CON
(1)
PFO
VALID
VALID