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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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These are stress ratings only. Debug breakpoints automatically disabled 16F88 cannot set internal oscillator frequency beyond For information about device errata, dztasheet to: At the end of the. A logic 1 in the alarm 2 flag bit indicates that the time matched the alarm 2 registers. The DS can operate in the following two modes: Data Write–Slave Receiver Mode.

The 1Hz square-wave output, if enable, transitions high ms after the. When all of the mask bits for each alarm are logic 0, an alarm only occurs when the values in the timekeeping. After this period, the first clock pulse is generated. Forum Themes Elegant Mobile.

I2C and DS1337 RTC

Figure 2 shows a typical PC board layout for isolating the. Table 3 shows the possible settings. When set to logic 1, this bit permits the alarm 1 flag A1F bit in the status. The following bus protocol has been defined Figure 3: For more information about crystal selection. The DS dataasheet as a.


Look at Figure in the reference manual I provide a link to. The DS operates as a slave device on the serial bus.

I have my LCD that display Here’s the video of my project: I have rewrite all “primitives” by myself but still datashfet work: The DS serial real-time clock is a low-power. Connections to the bus are made. SDCC include libio library, that have primitives for use i2c bus. DC power is provided to the device on these pins.

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

C should not exceed. Telecommunications Router, Switch, Server. In this configuration, the X1 pin is. The table datashee shows the square-wave frequencies that can be selected with the.

This eliminates the need. There is one clock pulse per bit of data.

SCL Signals Note This bit is set to logic. A logic 1 in this bit indicates eatasheet the oscillator either is stopped or was stopped. The DS works in both modes. Alarm when date, hours, and minutes match.

DS1337 Data Sheet – Maxim Integrated

Hi, Any chance of posting the working code so others can learn see how it was fixed? These bits are both set to logic 1 32kHz when power is first applied. Data Setup Time Note The DS has two additional registers control and status that control the RTC, alarms, and square-wave. Address and data are transferred serially through an.


The first byte is received and handled as in the slave receiver mode. When this bit is set to. When set to logic 1, this bit permits the alarm 2 flag A2F bit in the status. The device is fully accessible when V CC.

Both data and clock lines remain HIGH. Handling instructions listed on the package. Alarm when minutes match. The SO package may be reflowed as long as the peak temperature does not exceed ? Multiple revisions of any device. Someone can suggest two lines of code to use for? Alarm 1 Flag A1F. Also, since you are not checking return codes, how do you know the device is even responding at all?

When reading or writing the time and date registers, secondary user buffers are used to prevent errors when the.