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M41T60 Datasheet(PDF) 3 Page - STMicroelectronics

Part No. M41T60
Description  Serial access real-time clock
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M41T60 Datasheet(HTML) 3 Page - STMicroelectronics

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M41T60
Summary description
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1
Summary description
The M41T60 is a low power Serial RTC with a built-in 32.768kHz oscillator (external crystal
controlled). Eight registers are used for the clock/calendar function and are configured in
binary coded decimal (BCD) format. Addresses and data are transferred serially via a two-
line bi-directional bus. The built-in address register is increased automatically after each
WRITE or READ data byte.
The eight clock address locations contain the century, year, month, date, day, hour, minute,
and second; in 24-hour BCD format. Corrections for 28-, 29- (leap year), 30-, and 31-day
months are made automatically.
The M41T60 is supplied in 16-lead QFN package.
Figure 1.
Logic diagram
Note:
1
Open drain
Figure 2.
16-pin QFN connections
AI08869
XI
VCC
M41T60
VSS
XO
SCL
SDA
FT(1)
OFIRQ/OUT(1)
Table 1. Signal names
XI
Oscillator Input
XO
Oscillator Output
FT
Frequency Test Output (Open Drain)
SDA
Serial Data Address Input / Output
SCL
Serial Clock
OFIRQ/OUT
Oscillator Fail Interrupt/OUT Output (Open Drain)
VCC
Supply Voltage
VSS
Ground
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
XI
XO
FT
(1)
VSS
NC
SCL
SDA
OFIRQ/OUT
(1)
AI08870


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