M48Z58Y ST Microelectronics, M48Z58Y Datasheet - Page 5

• Manufacturer Part Number: M48Z58Y
• Description: 64 Kbit 8Kb x 8 ZEROPOWER SRAM
• Manufacturer: ST Microelectronics

Table 8. Power Down/Up Mode AC Characteristics
(T
Notes: 1. V
Figure 5. Power Down/Up Mode AC Waveforms
A
Symbol
= 0 to 70 C or –40 to 85 C)
t
REC
t
t
FB
t
t
F
2. V
3. t
t
PD
RB
R
(1)
(2)
V
(3)
REC
PFD
CC
PFD
V CC
V PFD (max)
V PFD (min)
V SO
INPUTS
OUTPUTS
passes V
(min) = 20ms for industrial temperature grade 6 device.
(max) to V
(min) to V
E or W at V
V
V
V
V
V
PFD
PFD
PFD
SS
PFD
PFD
to V
(min) to V
SS
(max) to V
(min) to V
(max) to Inputs Recognized
PFD
tPD
(min).
fall time of less than t
PFD
(min) fall time of less than t
(PER CONTROL INPUT)
IH
(min) V
VALID
RECOGNIZED
before Power Down
PFD
SS
PFD
tF
V
(max) V
CC
CC
(min) V
Fall Time
Rise Time
FB
Parameter
CC
CC
may cause corruption of RAM data.
Rise Time
Fall Time
tFB
F
may result in deselection/write protection not occurring until 200 s after
tDR
DON'T CARE
HIGH-Z
tRB
Min
300
10
10
40
0
1
tR
M48Z58, M48Z58Y
(PER CONTROL INPUT)
Max
200
tREC
RECOGNIZED
VALID
AI01168C
Unit
ms
s
s
s
s
s
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