M41T0 ST串行实时时钟
The M41T0 real-time clock is a low power serial real-time clock with a built-in 32.768 kHz oscillator (external crystal controlled). Eight registers 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 bus. The built-in address register is incremented automatically after each WRITE or READ data byte.
The M41T0 clock operates as a slave device on the serial bus. Access is obtained by implementing a start condition followed by the correct slave address (D0h). The 8 bytes contained in the device can then be accessed sequentially in the following order:
- Seconds register
- Minutes register
- Century/hours register
- Day register
- Date register
- Month register
- Years register
- Control register
M41T0 订购型号:
| Ordering Model | Package | RoHS Compliance Grade | Marketing Status | Memory Organization | Supply Voltage(Vcc) | Supply Voltage(Vcc) | General Description | Operating Range | Packing Type |
| min | max | ||||||||
| V | V | ||||||||
| M41T0M6E | SO8 | Ecopack1 | Active | 64b (8 x 8) | 2 | 5.5 | SERIAL REAL-TIME CLOCK | Industrial | Tube |
| M41T0M6F | SO8 | Ecopack1 | Active | 64b (8 x 8) | 2 | 5.5 | SERIAL REAL-TIME CLOCK | Industrial | Tape And Reel |
M41T0 产品特性:
- Counters for seconds, minutes, hours, day,date, month, years, and century
- 32 KHz crystal oscillator integrating load capacitance (12.5 pF) providing exceptional oscillator stability and high crystal series resistance operation
- Oscillator stop detection monitors clock operation
- Serial interface supports I2C bus (400 kHz protocol)
- Low standby current 0.9 μA (typ at 3 V)
- 2.0 to 5.5 V clock operating voltage
- Special software programmable output
- Software clock calibration to compensate crystal deviation due to temperature
- Operating temperature of –40 to 85°C
M41T0 技术支持与电子电路设计开发资源下载
- M41T0 数据手册DataSheet下载.PDF
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