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參數(shù)資料
| 型號： | M41T81SM6F |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 時鐘/數(shù)據(jù)恢復(fù)及定時提取 |
| 英文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO8 |
| 封裝： | 0.150 INCH, LEAD FREE, PLASTIC, SOP-8 |
| 文件頁數(shù)： | 9/32頁 |
| 文件大?。?/td> | 524K |
| 代理商： | M41T81SM6F |
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M41T81S
Clock operation
Doc ID 10773 Rev 6
The IRQ/FT/OUT/SQW pin is an open drain output which requires a pull-up resistor to VCC
for proper operation. A 500-10k resistor is recommended in order to control the rise time.
The FT bit is cleared on power-down.
Figure 11.
Crystal accuracy across temperature
Figure 12.
Clock calibration
Setting alarm clock registers
Address locations 0Ah-0Eh contain the alarm settings. The alarm can be configured to go
off at a prescribed time on a specific month, date, hour, minute, or second or repeat every
year, month, day, hour, minute, or second. It can also be programmed to go off while the
M41T81S is in the battery backup mode to serve as a system wake-up call.
Bits RPT5-RPT1 put the alarm in the repeat mode of operation. Table 3 on page 19 shows
the possible configurations. Codes not listed in the table default to the once per second
mode to quickly alert the user of an incorrect alarm setting.
AI07888
–160
0
10203040506070
Frequency (ppm)
Temperature
°C
80
–10
–20
–30
–40
–100
–120
–140
–40
–60
–80
20
0
–20
= –0.036 ppm/
°C
2 ± 0.006 ppm/°C2
K
ΔF
= K x (T – T
O)
2
F
T
O = 25°C ± 5°C
AI00594B
NORMAL
POSITIVE
CALIBRATION
NEGATIVE
CALIBRATION
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M41T81SM6E | 1 TIMER(S), REAL TIME CLOCK, PDSO8 |
| M41T82RMY6E | 1 TIMER(S), REAL TIME CLOCK, PDSO18 |
| M41T82ZQA6E | 1 TIMER(S), REAL TIME CLOCK, QCC16 |
| M41T82RQA6F | 1 TIMER(S), REAL TIME CLOCK, QCC16 |
| M41T82RMY6F | 1 TIMER(S), REAL TIME CLOCK, PDSO18 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M41T81SM6FT | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial Access Real-Time Clock with Alarms |
| M41T81SMY6 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial Access Real-Time Clock with Alarms |
| M41T81SMY6E | 功能描述:實(shí)時時鐘 Serial Access 實(shí)時時鐘 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(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| M41T81SMY6ET | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial Access Real-Time Clock with Alarms |
| M41T81SMY6F | 功能描述:實(shí)時時鐘 Serial Access 實(shí)時時鐘 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(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
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