M41T56M6E

low power, serial real-time clock, SOP8, –0.3 to 7 V, 0.25 W, Ultra-low battery supply current, RoHS compliant

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Price:: US $0.10~0.20 / piece [Get Latest Price]

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	US $0.10~0.20

PartNumber:: M41T56M6E

Brand:: STMicroelectronics - ST | Pack: SOP | D/C: 10+

Availability:: Supply Ability: 10000/Week Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

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Products Upload time: 2012-09-11

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Part Number:M41T56M6E
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Product Summary

The M41T56M6E is a low power, serial real-time clock with 56 bytes of NVRAM. 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. Addresses and data are transferred serially via a two-line, bidirectional bus. The M41T56M6E built-in address register is incremented automatically after each WRITE or READ data byte. The M41T56M6E 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.

Parametrics

M41T56M6E absolute maximum ratings: (1)TA, Ambient operating temperature: –40 to 85℃; (2)TSTG, Storage temperature (VCC off, oscillator off): –55 to 125 ℃; (3)TSLD,Lead solder temperature for 10 seconds: 260℃; (4)VIO, Input or output voltages: –0.3 to 7 V; (5)VCC, Supply voltage: –0.3 to 7 V; (6)IO, Output current: 20 mA; (7)PD, Power dissipation: 0.25 W.

Features

M41T56M6E features: (1)Counters for seconds, minutes, hours, day, date, month, years, and century; (2)32KHz crystal oscillator integrating load capacitance (12.5pF) providing exceptional oscillator stability and high crystal series resistance operation; (3)Serial interface supports I2C bus (100kHz protocol); (4)Ultra-low battery supply current of 450nA (typ at 3V); (5)5V ±10% supply voltage; (6)Timekeeping down to 2.5V; (7)Automatic power-fail detect and switch circuitry; (8)56 bytes of general purpose RAM; (9)Software clock calibration to compensate crystal deviation due to temperature; (10)Automatic leap year compensation; (11)Operating temperature of –40 to 85℃; (12)Available in an 8-lead, 150mil, plastic SOIC (SO8); (13)RoHS compliant–Lead-free second level interconnect.