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參數(shù)資料
| 型號： | M41T65Q6F |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 時鐘/數(shù)據(jù)恢復及定時提取 |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, QCC16 |
| 封裝： | 3 X 3 MM, LEAD FREE, QFN-16 |
| 文件頁數(shù)： | 20/40頁 |
| 文件大?。?/td> | 707K |
| 代理商： | M41T65Q6F |
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M41T62/63/64/65
Clock operation
Doc ID 10397 Rev 12
3.6
Square wave output (M41T62/63/64)
The M41T62/63/64 offers the user a programmable square wave function which is output on
the SQW pin. RS3-RS0 bits located in 04h establish the square wave output frequency.
These frequencies are listed in
Table 8. Once the selection 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.
The SQW output is an N-channel, open drain output driver for the M41T64, and a full CMOS
output driver for the M41T62/63. The initial power-up default for the SQW output is 32 KHz
(except for M41T64, which defaults disabled).
3.7
Full-time 32 KHz square wave output (M41T64)
The M41T64 offers the user a special 32 KHz square wave function which is enabled on
power-up to output on the F32K pin as long as VCC ≥ 1.3 V, and the oscillator is running
(ST bit = '0'). This function is available within one second (typ) 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.
Table 8.
Square wave output frequency
Square wave bits
Square wave
RS3
RS2
RS1
RS0
Frequency
Units
0000
None
–
0001
32.768
kHz
0010
8.192
kHz
0011
4.096
kHz
0100
2.048
kHz
0101
1.024
kHz
0110
512
Hz
0111
256
Hz
1000
128
Hz
1001
64
Hz
1010
32
Hz
1011
16
Hz
11008
Hz
11014
Hz
11102
Hz
11111
Hz
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M41T65Q6F-CUT TAPE | 制造商:ST 功能描述:M41T65 Series 1.3 to 4.4 V Serial I2C Real Time Clock Surface Mount - QFN-16 |
| M41T66 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial access real-time clock with alarms |
| M41T66_11 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial real-time clock with alarms |
| M41T66Q6F | 功能描述:實時時鐘 real-time clock with alarms RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| M41T80 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:SERIAL ACCESS RTC WITH ALARMS |
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