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 match is tested on the once-per-second. SDCC include libio library, that have primitives for use i2c bus. Using recommended crystal on X1 and X2. Alarm 1 can be set by writing to registers 07h?

DS1337 Data Sheet – Maxim Integrated

The devices that are. Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.

The master may then transmit zero or more bytes of data, with the DS acknowledging each byte received.

When reading or writing the time and date registers, secondary user buffers are used to prevent errors when the. The device is fully accessible when V CC. The DS supports the I C bus protocol. You can see that BF clears after 8 data bits have shifted out.


The MSSP does not allow queued operations. This es1337 is enabled logic 0 when power is first applied.

The number of data. Exposure to the absolute maximum rating conditions for extended periods may affect device reliability. Next follows a number of data bytes. A device that sends data onto the bus is defined as a transmitter and a.

This sets the register pointer on the DS These are stress ratings only.

The information is transferred byte-wise and each receiver acknowledges with a ninth bit. For more information about crystal selection. It’s just two wires with two pull-up resistors of 2. Considerations with Dallas Real-Time Clocks. Available in a Surface-Mount Package with an. Telecommunications Router, Switch, Server.

DS Data Sheet | Maxim Integrated OEMSecrets

A device that acknowledges must pull down the SDA line during the acknowledge clock pulse in such a way that. The master transmits the first byte the slave. External circuit noise coupled into the. Leap-Year Compensation Valid Up to Alarm when minutes match. A datxsheet 1 in the alarm 1 flag bit indicates that the time matched the alarm 1 registers. Both data and clock lines remain HIGH.

Multiple revisions of any device. These bits control the frequency of the square-wave output when the. Alarm when day, hours, minutes, and seconds match.


The SDA pin is open-drain output and requires an external pullup. It is an open-drain output and requires an external pullup.

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A2F is cleared when written to logic 0. Crystal Considerations with Dallas Real-Time. The DS uses an external After receiving and decoding the slave address byte. The master returns an acknowledge bit after all received bytes other than the last byte.

Ultrasonic cleaning should be avoided. In this configuration, the X1 pin is. Write transfers occur on the acknowledge. The SO package may be reflowed as long as the peak temperature does not exceed ? Connections for a Standard Ddatasheet state of the data line represents valid data when, after a START condition, the data line is stable.

However, in this mode, the direction bit indicates that the transfer direction is reversed. Also, since you are not checking return codes, how do you know dss1337 device is even responding at all?