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M41T60 View Datasheet(PDF) - STMicroelectronics

Part Name
Description
MFG CO.
M41T60
ST-Microelectronics
STMicroelectronics ST-Microelectronics
'M41T60' PDF : 27 Pages View PDF
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M41T60
1
Description
Description
The M41T60 is a low power serial RTC with a built-in 32.768 kHz 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
VCC
XI
XO
SCL
SDA
M41T60
FT(1)
OFIRQ/OUT(1)
VSS
1. Open drain
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
Figure 2. 16-pin QFN connections
AI08869
16 15 14 13
XI 1
12 NC
XO 2
11 OFIRQ/OUT(1)
VSS 3
10 SCL
FT(1) 4
9 SDA
5678
AI08870
Doc ID 10396 Rev 13
5/27
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