參數(shù)資料
型號: M41ST87WMX6T
廠商: STMICROELECTRONICS
元件分類: 時鐘/數(shù)據(jù)恢復及定時提取
英文描述: 1 TIMER(S), REAL TIME CLOCK, PDSO28
封裝: 0.300 INCH, PLASTIC, SOIC-28
文件頁數(shù): 36/38頁
文件大?。?/td> 552K
代理商: M41ST87WMX6T
7/38
M41ST87Y, M41ST87W
Figure 5. Hardware Hookup
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
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 –0.3V are not allowed on any pin while in the Battery Back-up mode.
AI07027
VCC
PFO1
EX
SCL
M41ST87Y/W
WDI
RSTIN1
RSTIN2
PFI1
PFI2
VSS
VBAT
F32k
IRQ/OUT
SQW/FT
RST
VOUT
ECON
SDA
Unregulated
Voltage
Inhibit
CAP+ CAP–
5V
Regulator
VCC
inverting
Charge
Pump
SHDN
OUT
IN
VIN
Inhibit
3.3V
Regulator
VCC
VIN
TP1IN
TPCLR
TP2IN
Pushbutton
Reset
For monitoring
of additional
voltage sources
PFO2
Low-Power
SRAM
VCC
Negative Output
(–1 x VIN)
E
To RST
To LED Display
To NMI
To INT
To 32kHz
R1
R2
R3
R4
Symbol
Parameter
Value
Unit
TSTG
Storage Temperature (VCC Off, Oscillator Off)
–55 to 125
°C
TSLD
(1)
Lead Solder Temperature for 10 seconds
230
°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
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