m41t81 STMicroelectronics, m41t81 Datasheet - Page 21

• Manufacturer Part Number: m41t81
• Description: Serial Access Real-time Clock With Alarms
• Manufacturer: STMicroelectronics

M41T81
4
Caution:
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 indicated in the Operating sections of
this specification is not implied. Exposure to Absolute Maximum Rating conditions for
extended periods may affect device reliability. Refer also to the STMicroelectronics SURE
Program and other relevant quality documents.
Table 6.
1.
2.
Negative undershoots below –0.3 volts are not allowed on any pin while in the Battery Back-
up Mode
T
Sym
T
V
V
P
STG
SLD
For SO8 package, lead-free (Pb-free) lead finish: Reflow at peak temperature of 260°C (total thermal budget not to exceed 245°C for greater
than 30 seconds).
For SO8 package, standard (SnPb) lead finish: Reflow at peak temperature of 240°C (total thermal budget not to exceed 180°C for between
90 to 150 seconds).
I
CC
O
IO
D
Storage temperature (V
oscillator off)
Supply voltage
Lead solder temperature for 10
seconds
Input or output voltages
Output current
Power dissipation
Absolute maximum ratings
CC
Parameter
off,
Lead-free lead finish
Standard (SnPb)
lead finish
SOIC
(2)
(1)
–0.3 to Vcc+0.3
–55 to 125
–0.3 to 7
Value
260
240
Maximum rating
20
1
Unit
mA
°C
°C
°C
21/30
W
V
V