10BASE-T1S SPI-PHY with integrated MAC

The DP83TD555J-Q1 is an IEEE802.3cg 10BASE-T1S and Open Alliance (OA) TC10,

TC14 compliant Serial Peripheral Interface (SPI)

MAC-PHY Ethernet transceiver. The device supports 10Mbps multi-drop or point-to-point

half-duplex communication over unshielded twisted pair cables with extended common

mode voltage tolerance. The device

communicates to a host controller or switch using OA SPI.

The DP83TD555J-Q1 integrates IEEE802.3 Media Access

Controller (MAC) that enables microcontrollers with SPI to seamlessly connect to

Ethernet networks using the 10BASE-T1S bus.

The DP83TD555J-Q1 incorporates TC10 wake/sleep features to enable efficient

system-level power consumption. The device supports remote wake-up over the Ethernet

data line. When a

wake-up event is detected, the DP83TD555J-Q1

initiates system start-up by driving INH high.

The device also integrates

IEEE 1588v2 /802.1AS to enable accurate time synchronization and hardware timestamping

for time-critical automotive and industrial applications.

The DP83TD555J-Q1 is equipped with diagnostic features such as cable fault

detection, undervoltage and overtemperature monitoring to streamline system

development and maintenance.