M41T80M6TR(2002) View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
M41T80M6TR Datasheet PDF : 20 Pages
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M41T80
Table 10. Square Wave Output Frequency
Square Wave Bits
RS3
RS2
RS1
0
0
0
0
0
0
0
0
1
0
0
1
0
1
0
0
1
0
0
1
1
0
1
1
1
0
0
1
0
0
1
0
1
1
0
1
1
1
0
1
1
0
1
1
1
1
1
1
Square Wave
RS0
Frequency
Units
0
None
-
1
32.768
kHz
0
8.192
kHz
1
4.096
kHz
0
2.048
kHz
1
1.024
kHz
0
512
Hz
1
256
Hz
0
128
Hz
1
64
Hz
0
32
Hz
1
16
Hz
0
8
Hz
1
4
Hz
0
2
Hz
1
1
Hz
Full-time 32kHz Square Wave Output
The M41T80 offers the user a special 32kHz
square wave function which defaults to output on
the F32k pin (Pin 3) as long as VCC is valid, and the
oscillator is running (ST Bit = '0'). This function is
available within four seconds of initial power-up
and can only be disabled by setting the 32kE Bit to
'0' or the ST Bit to '1.' If not used, the F32k pin
should be disconnected and allowed to float.
Note: The F32k pin is an open drain which requires
an external pull-up resistor.
15/20
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