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M41ST87W 数据表(PDF) 41 Page - STMicroelectronics

部件名 M41ST87W
功能描述  5.0 and 3.3/3.0 V secure serial RTC and NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM
PDF  54 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

M41ST87W 数据表(HTML) 41 Page - STMicroelectronics

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M41ST87W
Maximum ratings
DocID9497 Rev 11
41/54
4
Maximum ratings
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 16: Absolute maximum ratings
Symbol
Parameter
Value
Unit
TSTG
Storage temperature (VCC off, oscillator off)
–55 to 125
°C
TSLD
Lead solder temperature for 10 seconds
SSOP20
260
(1)
°C
SOX28
240
(2)
°C
VIO
Input or output voltage
–0.3 to VCC+0.3
V
VCC
Supply voltage
M41ST87Y
–0.3 to 7.0
V
M41ST87W
–0.3 to 4.6
V
IO
Output current
20
mA
PD
Power dissipation
1
W
θJA
Thermal resistance, junction to ambient
SSOP20
83.0
°C/W
SOX28
°C/W
Tj
Max. operating junction temperature
SSOP20
125
°C
SOX28
Notes:
(1)
Reflow at peak temperature of 260 °C. The time above 255 °C must not exceed 30 seconds.
(2)
Reflow at peak temperature of 240 °C. The time above 235°C must not exceed 20 seconds.
Caution: Negative undershoots below –0.3 V are not allowed on any pin while in the
battery backup mode.



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