參數(shù)資料
型號: M48T201V-85MH6TR
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, PDSO44
封裝: SNAPHAT, PLASTIC, SOH-44
文件頁數(shù): 14/32頁
文件大?。?/td> 448K
代理商: M48T201V-85MH6TR
21/32
M48T201Y, M48T201V
Square Wave Output
The M48T201Y/V offers the user a programmable
square wave function which is output on the SQW
pin. RS3-RS0 Bits located in 7FFF0h establish the
square wave output frequency. These frequencies
are listed in Table 12. Once the selection of the
SQW frequency has been completed, the SQW
pin can be turned on and off under software con-
trol with the Square Wave Enable Bit (SQWE) lo-
cated in Register 7FFF6h.
Table 12. Square Wave Output Frequency
Square Wave Bits
Square Wave
RS3
RS2
RS1
RS0
Frequency
Units
0
Hi-Z
-
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
0
1
0
512
Hz
0
1
256
Hz
1
0
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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