m48t35av STMicroelectronics, m48t35av Datasheet - Page 21

• Manufacturer Part Number: m48t35av
• Description: 3.3v, 256kbit 32kbit X 8 Timekeeper Sram
• Manufacturer: STMicroelectronics

Table 10.
1. Valid for ambient operating temperature: T
2. V
3. V
Table 11.
1. Valid for ambient operating temperature: T
2. All voltages referenced to V
3. At 25°C, V
4. CAPHAT and M4T32-BR12SH1 SNAPHAT only, M4T28-BR12SH1 SNAPHAT top t
Symbol
Symbol
noted).
V
noted).
t
t
t
PFD
CC
PFD
V
t
FB
t
t
DR
F
V
PD
t
RB
rec
R
PFD
(2)
SO
(3)
passes V
(3)
(min) to V
(max) to V
CC
Power down/up AC characteristics
E or W at V
V
V
V
V
V
Power down/up trip points DC characteristics
Power-fail deselect voltage
Battery back-up switchover voltage
Expected data retention time
PFD
PFD
PFD
SS
PFD
= 0V.
PFD
SS
PFD
to V
(min) to V
(min).
(max) to V
(min) to V
(max) to inputs recognized
fall time of less than t
(min) fall time of less than t
PFD
IH
(min) V
SS
before power down
Parameter
PFD
SS
.
PFD
V
(max) V
CC
CC
(min) V
fall time
Rise Time
FB
Parameter
(1)(2)
A
A
may cause corruption of RAM data.
CC
CC
= 0 to 70°C or –40 to 85°C; V
= 0 to 70°C or –40 to 85°C; V
rise time
fall time
F
may result in deselection/write protection not occurring until 200µs after
(1)
10
Min
2.7
(4)
CC
CC
V
= 4.5 to 5.5V or 3.0 to 3.6V (except where
= 4.5 to 5.5V or 3.0 to 3.6V (except where
PFD
Typ
2.9
–100mV
DR
= 7 years (typ).
Min
300
150
10
40
0
1
Max
3.0
Max
200
YEARS
Unit
Unit
V
V
ms
µs
µs
µs
µs
µs
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