The DP83TC818S-Q1 device is an IEEE 802.3bw automotive Ethernet physical layer transceiver. The device provides all physical layer functions needed to transmit and receive data, and xMII interface flexibility. DP83TC818S-Q1 is compliant to Open Alliance EMC and interoperable specifications over unshielded single twisted-pair cable. DP83TC818S-Q1 supports OA TC-10 low-power sleep feature with wake forwarding for reduced system power consumption when communication is not required.

The DP83TC818S-Q1 integrates IEEE 802.1AE line rate security with authentication and optional encryption support, to secure communication over the network. The DP83TC818S-Q1 supports up to 16 secure association (SA) channels with automatic SAK rollover and extended packet numbering support. DP83TC818S-Q1 offers ingress classification to filter the unwanted packets and supports WAN MACsec for end-to-end security.

DP83TC818S-Q1 integrates IEEE 1588v2, 802.1AS hardware time stamping and fractional PLL, enabling highly accurate time synchronization. The fractional PLL enables frequency and phase synchronization of the wall clock (eliminating the need for external VCXO) and generation of a wide range of time synchronized frequencies needed for audio and other ADAS applications. The PHY also integrates IEEE 1722 CRF decode to generate Media clock and Bit Clock for AVB and other audio applications.