M41T56-MH6 - Brand New STMicroelectronics Real-time Clocks (RTC)
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Description
The M41T56-MH6 is a low power, Serial Real Time Clock with 56 bytes of NVRAM. It features a built-in 32,768Hz oscillator (external crystal controlled) and the first 8 bytes of the RAM are used for the clock/calendar function and are configured in binary coded decimal (BCD) format. The M41T56-MH6 clock has a built-in power sense circuit which detects power failures and automatically switches to the battery supply during power failures. The energy needed to sustain the RAM and clock operations can be supplied from a small lithium coin cell. Typical data retention time is in excess of 10 years with a 50mAh, 3V lithium cell. The M41T56-MH6 is supplied in an 8-lead Plastic SOIC package or a 28-lead SNAPHAT® package. The 28-pin, 330mil SOIC provides sockets with gold plated contacts at both ends for direct connection to a separate SNAPHAT housing containing the battery and crystal. The unique design allows the SNAPHAT battery package to be mounted on top of the SOIC package after the completion of the surface mount process. Insertion of the SNAPHAT housing after reflow prevents potential battery and crystal damage due to the high temperatures required for device surface-mounting. The SNAPHAT housing is keyed to prevent reverse insertion. The SOIC and battery/crystal packages are shipped separately in plastic anti-static tubes or in Tape & Reel form.
Specifications and features
- Counters for seconds, minutes, hours, day, date, month, years, and century
- 32 KHz crystal oscillator integrating load capacitance (12.5pF) providing exceptional oscillator stability and high crystal series resistance operation
- Serial interface supports I2C Bus (400kHz protocol)
- Ultra-low battery supply current of 450nA
- 5V ±10% supply voltage
- Timekeeping down to 2.5V
- Automatic power-fail detect and switch circuitry
- 56 bytes of general purpose RAM
- Software clock calibration to compensate crystal deviation due to temperature
- Automatic leap year compensation
- Operating temperature of –40 to 85°C
- Packaging options include: 28-lead SOIC and SNAPHAT® TOP and SO8N
Application Scenarios
The M41T56-MH6 Real-time Clock is commonly used in various applications such as:
- Data logging
- Time-stamping
- Industrial automation
- Medical equipment
- Personal electronics
Comparison
Advantages- Low power consumption
- High data retention time
- Automatic power-fail detection and switch circuitry
- Built-in power sense circuit
- Supports I2C Bus interface
- Wide operating temperature range
Disadvantages- Requires an external crystal for oscillator stability
- Requires a separate battery and crystal housing (SNAPHAT)
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Similar parts: 1405 , Click to view
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Datasheet
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Shopping guide
Delivery period:
- - Will ship out in 2-3 days
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Popular parts of the same kind
- Datasheet: Download M41T56-MH6
- Chipdatas Part: CD94-M41T56-MH6
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/06/03 07:05 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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The fee is charged according to the rule of PayPal.
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