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Part Name
Description
M41ST84W View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
M41ST84W
3.0/3.3 V I2C serial RTC with 44 bytes of NVRAM and supervisory functions
STMicroelectronics
M41ST84W Datasheet PDF : 34 Pages
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Description
Figure 2. 16-pin SOIC connections
XI
XO
RST
WDI
RSTIN
PFO
VBAT
VSS
1
16
2
15
3
14
4
13
5
M41ST84W
12
6
11
7
10
8
9
AI03678
VCC
NC
IRQ/FT/OUT
NC
PFI
SQW
SCL
SDA
Figure 3. Block diagram
M41ST84W
SDA
SCL
XI
Crystal
XO
WDI
VCC
VBAT
VSS
RSTIN
PFI
1. Open drain output
8/34
400kHz
I2C
INTERFACE
32KHz
OSCILLATOR
REAL TIME CLOCK
CALENDAR
44 BYTES
USER RAM
RTC w/ALARM
AF
& CALIBRATION
WATCHDOG
WDF
SQUARE WAVE
IRQ/FT/OUT(1)
SQW
VINT
VBL= 2.5V COMPARE
VSO = 2.5V COMPARE
VPFD = 2.65V COMPARE
BL
POR
1.25V
(Internal)
COMPARE
RST(1)
PFO
AI03931
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