參數(shù)資料
型號(hào): M41T81MQ6
廠商: STMICROELECTRONICS
元件分類: 時(shí)鐘/數(shù)據(jù)恢復(fù)及定時(shí)提取
英文描述: 1 TIMER(S), REAL TIME CLOCK, PDSO16
封裝: PLASTIC, SOIC-16
文件頁數(shù): 11/28頁
文件大?。?/td> 179K
代理商: M41T81MQ6
19/28
M41T81
Square Wave Output
The M41T81 offers the user a programmable
square wave function which is output on the SQW
pin. RS3-RS0 bits located in 13h establish the
square wave output frequency. These frequen-
cies are listed in Table 12. Once the selection of
the SQW frequency has been completed, the IRQ/
FT/OUT/SQW pin can be turned on and off under
software control with the Square Wave Enable Bit
(SQWE) located in Register 0Ah.
Table 12. Square Wave Output Frequency
Square Wave Bits
Square Wave
RS3
RS2
RS1
RS0
Frequency
Units
00
None
-
0
1
32.768
kHz
0
1
0
8.192
kHz
0
1
4.096
kHz
0
1
0
2.048
kHz
0
1
0
1
1.024
kHz
01
10
512
Hz
01
11
256
Hz
10
00
128
Hz
10
01
64
Hz
10
32
Hz
10
11
16
Hz
11
00
8
Hz
11
01
4
Hz
11
10
2
Hz
11
1
Hz
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