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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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Available in a Surface-Mount Package with an.

Notes 5, 7, 8, 9. Look at Figure in the reference manual I provide a link to.

The RTC registers are. This sets the register pointer on the DS Multiple revisions of any device. The 1Hz square-wave output, if enable, transitions high ms after the.

DS1337, DS1337C I²C Serial Real-Time Clock

When this bit is set to. Crystal Considerations with Dallas Real-Time.


A device that acknowledges must pull down the SDA line during the acknowledge clock pulse in such a way that. A logic 1 in the alarm 2 flag bit indicates that the time matched the alarm 2 registers.

Accordingly, the following bus conditions have been defined: This eliminates the need.

DS datasheet, Pinout ,application circuits DS, DSC I²C Serial Real-Time Clock

The device is fully accessible when V CC. Alarm when minutes and seconds match. The device that controls the message is called a master. C should not exceed. Defaults to 32kHz on Power-Up. If such a device does stretch the LOW. The SO package may be reflowed as long as the peak temperature does not exceed ? Data is transferred with the most significant bit MSB first. INTA pin goes low.

I2C and DS RTC | Microchip

Handling instructions listed on the package. Pin Configurations appear at end of data sheet. The DS can operate in the following two modes: Alarm 1 Flag A1F. The DS must receive a “not acknowledge” to end a read.


It is an open-drain output and requires an external pullup. However, in this mode, the direction bit indicates that the transfer direction is reversed.

Essentials Only Full Version. The DS works in both modes.

I2C and DS1337 RTC

SCL Signals Note A logic 1 in this bit indicates that the oscillator either is stopped or was stopped. The alarms can also be.

When reading the time and date registers, the user buffers are synchronized to the.