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M41T81 Datasheet(PDF) 7 Page - STMicroelectronics

Part # M41T81
Description  Serial access Real-Time Clock with alarm
PDF  30 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M41T81 Datasheet(HTML) 7 Page - STMicroelectronics

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M41T81
Summary description
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Figure 3.
Block diagram
1.
Open drain output
2.
Square Wave function has the highest priority on IRQ/FT/OUT/SQW output.
3.
VSO = VBAT – 0.5V (typ)
AI04616
REAL TIME CLOCK
CALENDAR
RTC W/ALARM
& CALIBRATION
WATCHDOG
SQUARE WAVE
FREQUENCY TEST
OUTPUT DRIVER
IRQ/FT/OUT/SQW
(1,2)
INTERNAL
POWER
SQWE
AFE
SDA
SCL
VCC
COMPARE
I
2C
INTERFACE
32KHz
OSCILLATOR
VBAT
CRYSTAL
VSO
(3)
WRITE
PROTECT
FT
OUT



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