Shenzhen Retechip Electronics Co., Ltd
| Payment Terms | T/T, Western Union, MoneyGram,GooglePay |
| Supply Ability | 25000pcs Per Mouth |
| Delivery Time | 7-14 days |
| Packaging Details | 2500Pcs/Reel |
| Product Category: | M41T81SM6F |
| Description | YY-MM-DD-dd 2.7V to 5.5V SOIC-8 |
| Certification: | Original Factory Pack |
| Warranty | 90 Days |
| Shipping by | DHL\UPS\Fedex\EMS\HK Post |
| Unit Weight: | 0.002575 oz |
| Brand Name | STMicroelectronics |
| Model Number | M41T81SM6F |
| Place of Origin | Original |
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Product Specification
| Payment Terms | T/T, Western Union, MoneyGram,GooglePay | Supply Ability | 25000pcs Per Mouth |
| Delivery Time | 7-14 days | Packaging Details | 2500Pcs/Reel |
| Product Category: | M41T81SM6F | Description | YY-MM-DD-dd 2.7V to 5.5V SOIC-8 |
| Certification: | Original Factory Pack | Warranty | 90 Days |
| Shipping by | DHL\UPS\Fedex\EMS\HK Post | Unit Weight: | 0.002575 oz |
| Brand Name | STMicroelectronics | Model Number | M41T81SM6F |
| Place of Origin | Original | ||
| High Light | M41T81SM6F ，M41T81SM6F Real Time Clock Chip | ||
Real Time Clock Chip M41T81SM6F YY-MM-DD-dd 2.7V to 5.5V SOIC-8
Features
■ Counters for tenths/hundredths of seconds, seconds, minutes, hours, day, date, month, year, and century
■ 32 KHz crystal oscillator with integrated load capacitance (12.5 pf) which provides exceptional oscillator stability and high crystal series resistance operation)
■ Oscillator stop detection (monitors clock operation)
■ Serial interface supports I2C bus (400 kHz protocol)
■ Ultra-low battery supply current of 0.6 µA (typ)
■ 2.0 to 5.5 V clock operating voltage
■ Automatic switchover and deselect circuitry (fixed reference) which provides full operation in 3.0 V applications)
■ VCC = 2.7 to 5.5 V
■ 2.5 V ≤ VPFD ≤ 2.7 V
■ Power-down time-stamp (HT bit) which allows determination of time elapsed in battery backup
■ Battery low flag
■ Programmable alarm and interrupt function (valid even during battery backup mode)
■ Accurate programmable watchdog timer (from 62.5 ms to 128 s)
■ Software clock calibration (to compensate for crystal deviation due to temperature)
■ Operating temperature of –40 to 85 °C
■ Package options include an 8-lead SOIC or 18-lead embedded crystal SOIC
Description
The M41T81S 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. An additional 12 bytes of SRAM provide status/control of alarm, watchdog and square wave functions. 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 M41T81S 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. Functions available to the user include a non-volatile, time-ofday clock/calendar, alarm interrupts, watchdog timer and programmable square wave output. The eight clock address locations contain the century, year, month, date, day, hour, minute, second and tenths/hundredths of a 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 M41T81S is supplied in either an 8-pin SOIC or an 18-pin 300 mil SOIC package which includes an embedded 32 KHz crystal. The 18-pin, embedded crystal SOIC requires only a user-supplied battery to provide nonvolatile operation.
Figure 1. Logic diagram
Specifications
| Product Attribute | Attribute Value |
|---|---|
| I2C, Serial | |
| YY-MM-DD-dd | |
| HH:MM:SS:hh | |
| 20 B | |
| SOIC-8 | |
| Backup Switching | |
| 2.7 V | |
| 5.5 V | |
| - 40 C | |
| + 85 C | |
| Reel |
Trading Guides
| Shipping | Delivery period | For in-stock parts, orders are estimated to ship out in 3 days. Once shipped, estimated delivery time depends on the below carriers you chose: DHL Express, 3-7 business days. DHL eCommerce,12-22 business days. FedEx International Priority, 3-7 business days EMS, 10-15 business days. Registered Air Mail, 15-30 business days. |
| Shipping rates | After confirming the order, we will evaluate the shipping cost based on the weight of the goods | |
| Shipping option | We provide DHL, FedEx, EMS, SF Express, and Registered Air Mail international shipping. | |
| Shipping tracking | We will notify you by email with tracking number once order is shipped. | |
| Returning warranty | Returning | Returns are normally accepted when completed within 30 days from date of shipment.Parts should be unused and in original packaging.Customer has to take charge for the shipping. |
| Warranty | All Retechip purchases come with a 30-day money-back return policy, This warranty shall not apply to any item where defects have been caused by improper customer assembly, failure by customer to follow instructions, product modification, negligent or improper operation | |
| Ordering |
Payment
| T/T,PayPal, Credit Card includes Visa, Master, American Express. |
Company Details
Business Type:
Distributor/Wholesaler
Year Established:
2013
Total Annual:
5000000-1000000
Employee Number:
100~150
Ecer Certification：
Verified Supplier
Shenzhen Retechip® Electronic Technology Co., Ltd. was established in 2013, specializing in electronic components distribution business.The products are widely used in communication equipment, power supply, medical electronics, automotive electronics, digital electronics, industrial electronics,... Shenzhen Retechip® Electronic Technology Co., Ltd. was established in 2013, specializing in electronic components distribution business.The products are widely used in communication equipment, power supply, medical electronics, automotive electronics, digital electronics, industrial electronics,...
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