M41T81 查看數據表（PDF） - STMicroelectronics

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M41T81

SERIAL ACCESS RTC WITH ALARMS

STMicroelectronics 

M41T81

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

not implied. Exposure to Absolute Maximum Rat-

ing conditions for extended periods may affect de-

vice reliability. Refer also to the

STMicroelectronics SURE Program and other rel-

evant quality documents.

Table 2. Absolute Maximum Ratings

Sym

Parameter

Value

Unit

TSTG

VCC

TSLD(1)

VIO

IO

PD

Storage Temperature (VCC Off, Oscillator Off)

Supply Voltage

Lead Solder Temperature for 10 Seconds

Input or Output Voltages

Output Current

Power Dissipation

SOIC

–55 to 125

°C

–0.3 to 7

V

260

°C

–0.3 to Vcc+0.3

V

20

mA

1

W

Note: 1. Reflow at peak temperature of 215°C to 225°C for < 60 seconds (total thermal budget not to exceed 180°C for between 90 to 120

seconds).

CAUTION: Negative undershoots below –0.3 volts are not allowed on any pin while in the Battery Back-Up Mode

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