Refer to the PDF data sheet for device specific package drawings
The HDQ1W module implements the hardware protocol of the master functions of the TI/Benchmarq HDQ and the Dallas Semiconductor 1-Wire® protocols. These protocols use a single wire for communication between the master (HDQ1W controller) and the slaves (HDQ/1-Wire external compliant devices).
The HDQ1W has a generic L4 interface and is intended to be used in an interrupt-driven fashion. The 1- pin interface is implemented as an open-drain output at the device level.
The main features supported by the HDQ1W are the following:
The HDQ1W provides a communication rate of 5 Kbps over an address space of 128 bytes.
A typical application of the HDQ1W is the communication with battery monitor (gas gauge) integrated circuits.
For more information, see section HDQ/1-Wire in chapter Serial Communication Interfaces of the Device TRM.