The recommended layout and routing for the DS2436Z+ involves keeping the VCC and GND pins as close as possible to the device, using a solid ground plane, and minimizing the length of the traces connected to the DQ and CLK pins. Additionally, it's recommended to use a 0.1uF decoupling capacitor between VCC and GND, and to avoid routing signals under the device.
The 1-Wire bus reset and presence detect can be handled by applying a reset pulse to the DQ pin, which should be low for at least 480us and then high for at least 480us. The presence detect can be done by applying a reset pulse and then checking for a presence pulse from the device within 70us.
The maximum cable length for the 1-Wire bus depends on the specific application and the type of cable used. However, as a general rule, the maximum cable length should not exceed 100m. It's also recommended to use a twisted pair cable with a characteristic impedance of 50-100 ohms.
Data integrity and error detection on the 1-Wire bus can be ensured by using a cyclic redundancy check (CRC) and by implementing a retry mechanism in case of errors. The DS2436Z+ has a built-in CRC generator and checker, and it's recommended to use this feature to detect errors.
The power consumption of the DS2436Z+ depends on the operating mode and the frequency of the 1-Wire bus. In active mode, the typical power consumption is around 1.5mA, and in standby mode, it's around 1uA. The power consumption can be further reduced by using the device's power-down mode.
DS2436Z+ datasheet
by Maxim Integrated Products
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