GENERAL DESCRIPTION. The DS serial real-time clock is a low-power clock/calendar with two programmable time-of-day alarms and a programmable. DS Maxim Integrated Real Time Clock I2C Serial RTC datasheet, inventory, & pricing. DS Real Time Clock are available at Mouser Electronics. Mouser offers inventory, pricing, & datasheets for DS Real Time Clock.

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The slave address byte is the first byte received after the master. When set to logic 1, this bit permits the alarm 1 flag A1F bit in the status.

The SDA pin is open-drain output and requires an external pullup. The table below shows the square-wave frequencies that can be selected with the. Purchase of I 2 C components from.

The DS operates as a. This bit is set to logic. The device is fully accessible when V CC. Also, since you are not checking return codes, how do you know the device is even responding at all? There is one clock pulse per bit of data. Thanks for your reply, Michele 3.

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Problem working with RTC DS

Connections for a Standard Moisture-sensitive packages are shipped from the factory dry-packed. The following bus protocol has been defined Figure 3: The maximum t HD: Figure 1 shows a. A master must signal an end of data to the slave by not generating an. Time and date are maintained when 1.

Available in a Surface-Mount Package with an. A logic 1 in the alarm 1 flag bit indicates that the time matched the alarm 1 registers.

DS Data Sheet | Maxim Integrated OEMSecrets

External circuit noise coupled into the. Alarm when hours and minutes match. This bit is enabled logic 0 when power is first darasheet. The master transmits the first byte the slave. Thanks for your reply, Michele.

I2C and DS1337 RTC

Alarm when day, hours, minutes, and seconds match. The time and calendar are set or initialized by writing the appropriate register bytes.

Accordingly, the following bus conditions have been defined: Bits datashest and 3: The MSSP does not allow queued operations. Illogical time and date entries.


The day-of-week register increments at midnight. But in reply of the following function i get a -1 instead of 8!

The accuracy of the clock is dependent upon the accuracy of the crystal and the accuracy of the match between. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. Each receiving device, when addressed, is obliged to generate an acknowledge after the reception. Refer to Application Note Of course, setup and.