DS2482S-100+: FAQ

Created over 7 years ago

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Are there any lock-up problems with the DS2482-100 I2C to 1-Wire master?

There are no known issues with lock up for the DS2482-100 device. That said, be careful with the 1-Wire master (any 1-Wire master) when connecting it to temperature sensors, EEPROM memories, or anything…
Can the DS2482 operate as a slave 1-Wire device?

No. The DS2482 can only operate as a Master 1-Wire device.
Can the DS2482 operate as a slave 1-Wire device?

No. The DS2482 can only operate as a Master 1-Wire device.
Can the DS2482 operate with a low frequency (around 5kHz) SCL on the I2C bus?

Yes, the I2C communication and the 1-wire IO communication are two separate protocols controlled by the Master (DS2482-100 in this case). The slave devices will only log data to the master when a request…
Can the DS2482 operate with a low frequency (around 5kHz) SCL on the I2C bus?

Yes, the I2C communication and the 1-wire IO communication are two separate protocols controlled by the Master (DS2482-100 in this case). The slave devices will only log data to the master when a request…
Could you help provide the timing requirements in standard mode 100kHz, for the DS2482S-100?

The datasheet is the governing document, so it should be correct also for 100kHz. I2C timings are valid from 0 to 400kHz, per the fSCL EC table parameter. Keep in mind notes 11-15 also apply.
Does the DS2482-100 need an external pullup resistor?

There is no need of an external pull-up resistor, please see description here: The DS2482-100 is a self-timed 1-Wire master that supports advanced 1-Wire waveform features including standard and overdrive…
How far can the DS2482-100 1-Wire bus transmit?

The 1-Wire bus distance is not specified, but rather guidelines for capacitive loading are given and these should be followed to ensure a given bus length meets the requirements. According to Note 2…
How far can the DS2482-100 1-Wire bus transmit?

The 1-Wire bus distance is not specified, but rather guidelines for capacitive loading are given and these should be followed to ensure a given bus length meets the requirements. According to Note 2…
I can communicate with the DS2482-100, but I am unable to read meaningful data from it?

Most issues when not being able to get meaningful data from the DS2482-100 stem from corruption of the I2C protocol. For example, some microcontrollers will be programmed to send a stop command between…

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DS2482S-100+: FAQ

Are there any lock-up problems with the DS2482-100 I2C to 1-Wire master?

Can the DS2482 operate as a slave 1-Wire device?

Can the DS2482 operate as a slave 1-Wire device?

Can the DS2482 operate with a low frequency (around 5kHz) SCL on the I2C bus?

Can the DS2482 operate with a low frequency (around 5kHz) SCL on the I2C bus?

Could you help provide the timing requirements in standard mode 100kHz, for the DS2482S-100?

Does the DS2482-100 need an external pullup resistor?

How far can the DS2482-100 1-Wire bus transmit?

How far can the DS2482-100 1-Wire bus transmit?

I can communicate with the DS2482-100, but I am unable to read meaningful data from it?

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