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M41T82 Datasheet(PDF) 10 Page - STMicroelectronics

Part # M41T82
Description  Serial I2C bus real-time clock (RTC) with battery switchover
PDF  64 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M41T82 Datasheet(HTML) 10 Page - STMicroelectronics

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Description
M41T82, M41T83
10/64
DocID012578 Rev 19
Figure 6. M41T82 block diagram
1. VRST = VSO = 2.93 V (S), 2.63 V (R), and 2.32 V (Z).
2. Open drain output.
Figure 7. M41T82 hardware hookup
1. Open drain output.
REAL TIME CLOCK
CALENDAR
ALARM1
ALARM2
WATCHDOG
OSCILLATOR FAIL
CIRCUIT
OUTPUT DRIVER
8-BIT COUNTER
FREQUENCY TEST
USER SRAM (7 Bytes)
RST
(2)
INTERNAL
POWER
SDA
SCL
VCC
COMPARE
trec
TIMER
I
2
C
INTERFACE
32KHz
OSCILLATOR
VBAT
CRYSTAL
XI
XO
VRST/VSO
(1)
AI11812
WRITE
PROTECT
VCC < VRST
FT
AI11813
VCC
Reset Input
Serial Clock Line
Serial Data Line
XO
XI
M41T82
MCU
VSS
VBAT
FT/RST
(1)
SDA
SCL
VCC
VCC



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