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M41T60 Datasheet(PDF) 4 Page - STMicroelectronics |
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M41T60 Datasheet(HTML) 4 Page - STMicroelectronics |
4 / 23 page M41T60 4/23 SUMMARY DESCRIPTION The M41T60 Serial Access TIMEKEEPER® is a low power Serial RTC with a built-in 32.768kHz os- cillator (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 bi-directional bus. The built-in address register is incremented automatically after each WRITE or READ data byte. The eight clock address locations contain the cen- tury, year, month, date, day, hour, minute, and second; in 24-hour BCD format. Corrections for 28-, 29- (leap year), 30-, and 31-day months are made automatically. The M41T60 is supplied in 16-lead QFN package. Figure 4. Logic Diagram Note: 1. Open Drain Table 1. Signal Names AI08869 XI VCC M41T60 VSS XO SCL SDA FT(1) OFIRQ/OUT(1) XI Oscillator Input XO Oscillator Output FT Frequency Test Output (Open Drain) SDA Serial Data Address Input / Output SCL Serial Clock OFIRQ/OUT Oscillator Fail Interrupt/OUT Output (Open Drain) VCC Supply Voltage VSS Ground |
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