M41T00S Serial real-time clock (RTC)
The M41T00S is a low-power serial real-time clock (RTC) with a built-in 32.768 kHz oscillator (external crystal controlled). Eight bytes of the SRAM are used for the clock/calendar function and are configured in binary coded decimal (BCD) format. Addresses and data are transferred serially via a two line, bidirectional I²C interface. The built-in address register is incremented automatically after each WRITE or READ data byte.
The M41T00S has a built-in power sense circuit which detects power failures and automatically switches to the battery supply when a power failure occurs. The energy needed to sustain the clock operations can be supplied by a small lithium button supply when a power failure occurs. The eight clock address locations contain the century, year, month, date, day, hour, minute, and second in 24-hour BCD format. Corrections for 28, 29 (leap year - valid until year 2100), 30 and 31 day months are made automatically.
The M41T00S is supplied in an 8-pin SOIC.
技术特性
- 2.0 to 5.5 V clock operating voltage
- Counters for seconds, minutes, hours, day, date, month, year, and century
- Software clock calibration
- Automatic switchover and deselect circuitry (fixed reference)
- VCC= 2.7 to 5.5 V 2.5 V ≤ VPFD≤ 2.7 V
- Serial interface supports I²C bus (400 kHz protocol)
- Low operating current of 300 μA
- Oscillator stop detection
- Battery or SuperCapTMbackup
- Operating temperature of –40 to 85 °C
- Ultra-low battery supply current of 0.6 μA
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功能框图
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M41T00S 订购信息
| 订购型号 |
产品状态 |
美金价格 |
数量 |
封装 |
包装形式 |
温度范围 |
材料声明 |
| M41T00SM6E |
Active |
|
|
SO-8 |
Tube |
-40 °C-85°C |
M41T00SM6E |
| M41T00SM6F |
Active |
|
|
SO-8 |
Tape And Reel |
-40 °C-85°C |
M41T00SM6F |
DATASHEET
| 描述 |
版本 |
大小 |
| M41T00S : DS4002: Serial real-time clock |
5 |
308KB |
APPLICATION NOTES
| 描述 |
版本 |
大小 |
| AN1012: Predicting the battery life and data retention period of NVRAMs and serial RTCs |
4 |
440KB |
| AN934: How to use the digital calibration feature in TIMEKEEPER® and serial real-time clock (RTC) products |
4 |
124KB |
| AN1011: Battery technology used in NVRAM and real-time clock (RTC) products from ST |
4 |
249KB |
| AN3060: Applications guide for serial real-time clocks |
1 |
355KB |
USER MANUALS
| 描述 |
版本 |
大小 |
| UM0276 : STFPC311 LED evaluation board hardware description and user manual |
2 |
503KB |
