M41ST84WMH ST Microelectronics, M41ST84WMH Datasheet - Page 20
![no-image](/images/no-image-200.jpg)
M41ST84WMH
Manufacturer Part Number
M41ST84WMH
Description
5.0 or 3.0V / 512 bit 64 x 8 SERIAL RTC with SUPERVISORY FUNCTIONS
Manufacturer
ST Microelectronics
Datasheet
1.M41ST84WMH.pdf
(31 pages)
- Current page: 20 of 31
- Download datasheet (453Kb)
M41ST84Y, M41ST84W
Square Wave Output
The M41ST84Y/W offers the user a programma-
ble square wave function which is output on the
SQW pin. The RS3-RS0 Bits located in 13h estab-
lish the square wave output frequency. These fre-
quencies are listed in Table 11. Once the selection
Table 11. Square Wave Output Frequency
20/31
RS3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
RS2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
Square Wave Bits
RS1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
of the SQW frequency has been completed, the
SQW pin can be turned on and off under software
control with the Square Wave Enable Bit (SQWE)
located in Register 0Ah.
RS0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Frequency
32.768
8.192
4.096
2.048
1.024
None
512
256
128
64
32
16
8
4
2
1
Square Wave
Units
kHz
kHz
kHz
kHz
kHz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
Hz
–
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