m41st84w STMicroelectronics, m41st84w Datasheet - Page 22

• Manufacturer Part Number: m41st84w
• Description: 3.0/3.3v I 2c Serial Rtc With Supervisory Functions
• Manufacturer: STMicroelectronics

M41ST84W
Table 7. t
Note: 1. Default Setting
Table 8. Default Values
Note: 1. WDS, BMB0-BMB4, RB0, RB1.
MAXIMUM RATING
Stressing the device above the rating listed in the
“Absolute Maximum Ratings” table may cause
permanent damage to the device. These are
stress ratings only and operation of the device at
these or any other conditions above those indicat-
ed in the Operating sections of this specification is
Table 9. Absolute Maximum Ratings
Note: 1. For SO package, standard (SnPb) lead finish: Reflow at peak temperature of 225°C (total thermal budget not to exceed 180°C for
22/29
Initial Power-up
(Battery Attach)
Subsequent Power-up (with
battery back-up)
Symbol
T
T
SLD
V
2. State of other control bits undefined.
3. UC = Unchanged
2. For SO package, Lead-free (Pb-free) lead finish: Reflow at peak temperature of 260°C (total thermal budget not to exceed 245°C
V
P
STG
I
CC
O
IO
t
D
REC
between 90 to 150 seconds).
for greater than 30 seconds).
CAUTION: Negative undershoots below –0.3V are not allowed on any pin while in the Battery Back-up mode.
(1)
rec
Condition
Bit (TR)
0
0
1
Definitions
Storage Temperature (V
Lead Solder Temperature for 10 seconds
Input or Output Voltages
Supply Voltage
Output Current
Power Dissipation
(2)
(3)
STOP Bit (ST)
UC
TR
0
CC
X
0
1
Off, Oscillator Off)
Parameter
UC
ST
1
HT
1
1
Out
not implied. Exposure to Absolute Maximum Rat-
ing conditions for extended periods may affect de-
vice
STMicroelectronics SURE Program and other rel-
evant quality documents.
UC
1
Min
96
40
50
FT
reliability.
0
0
t
rec
AFE
0
0
Time
–0.3 to V
ABE
Refer
0
0
–55 to 150
–0.3 to 4.6
200
Value
2000
Max
260
98
20
1
CC
(1)
SQWE
0
0
+ 0.3
also
WATCHDOG
Register
to
Unit
Units
0
0
mA
°C
°C
W
V
V
ms
ms
µs
(1)
the