DS2404S-C01 查看數據表（PDF） - Dallas Semiconductor -> Maxim Integrated

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DS2404S-C01

Dual Port Memory Plus Time

Dallas Semiconductor -> Maxim Integrated 

DS2404S-C01

The second port of the DS2404S-C01 is a 3-wire serial interface providing the signals Data, Clock, and

Reset for communication speeds up to 2 Mbit/s. The 3-wire interface directly accesses the scratchpad,

memory locations and special registers without requiring a ROM command to address the device. For the

3-wire interface the same command codes and transaction flowcharts apply as for the 1-Wire interface;

the lasered ROM itself and the commands of the network layer are not accessible. The arbitration

between ports is done according to the method first come, first serve. Housed in a 16-pin SOIC package,

the DS2404S-C01 provides a separate open drain IRQ pin for interrupt signaling and a 1 Hz clock output.

Depending on the application the device can either operate on VCC from 2.8V to 5.5V with battery backup

or on battery only. For further details please refer to the DS2404 or DS1994 data sheet.

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