Maximum ratings
3
Maximum ratings
M48Z2M1Y, M48Z2M1V
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.
Table 5. Absolute maximum ratings
Symbol
Parameter
Value
Unit
Obsolete Product(s) - Obsolete Product(s) Caution:
TA
TSTG
TBIAS
TSLD(1)
VIO
Ambient operating temperature
Storage temperature (VCC off)
Temperature under bias
Lead solder temperature for 10 seconds
Input or output voltages
0 to 70
°C
–40 to 85 °C
–40 to 85 °C
260
°C
M48Z2M1Y
–0.3 to 7
V
M48Z2M1V –0.3 to 4.6 V
VCC
Supply voltage
M48Z2M1Y
–0.3 to 7
V
M48Z2M1V –0.3 to 4.6 V
IO
Output current
PD
Power dissipation
20
mA
1
W
1. Soldering temperature of the IC leads is to not exceed 260 °C for 10 seconds. Furthermore, the devices
shall not be exposed to IR reflow nor preheat cycles (as performed as part of wave soldering). ST
recommends the devices be hand-soldered or placed in sockets to avoid heat damage to the batteries.
Negative undershoots below –0.3 V are not allowed on any pin while in the battery backup
mode.
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Doc ID 5135 Rev 6