DP83TC814RRHATQ1

Drivers, Receivers, Transceivers Overview

The DP83TC814RRHATQ1 is an IEEE 802.3bw-compliant automotive Ethernet PHY transceiver designed for unshielded single twisted-pair cables. It operates within a –40°C to +125°C ambient temperature range and supports MII, RMII, RGMII, and SGMII MAC interfaces. The device integrates a low-pass filter on the MDI side to reduce emissions and features configurable I/O voltages of 3.3V, 2.5V, and 1.8V. It includes a diagnostic toolkit with signal quality indication, time domain reflectometry, and electrostatic discharge monitoring. The component is housed in a 6.00mm × 6.00mm, 36-pin VQFN wettable flank package.

Drivers, Receivers, Transceivers Feature Summary

• Supports Open Alliance and IEEE 802.3bw 100BASE-T1 standards with integrated LPF for Level IV emission compliance.
• Includes a comprehensive diagnostic toolkit featuring signal quality indication, time domain reflectometry, and ESD event counting.
• Provides flexible MAC interface connectivity via MII, RMII, RGMII, and SGMII protocols with optional separate voltage rails.
• Features functional safety capability documentation and AEC-Q100 qualification for automotive environments.

Drivers, Receivers, Transceivers Applications

• Advanced Driver Assistance Systems (ADAS)
• Gateway and body control modules
• Telematics units

Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix 'R' indicates the absence of SGMII support compared to the 'S' variant. Confirm the wettable flank packaging requirements for automated optical inspection during assembly. Ensure the selected voltage domain matches the target MAC interface specifications before finalizing the order.

Drivers, Receivers, Transceivers Selection Notes

Select this model when SGMII interface support is not required, as it lacks the serial gigabit media independent interface capability found in the DP83TC814S-Q1 variant. It serves as a form-factor compatible alternative to the DP83TC811 series while offering enhanced diagnostic features. Consider the pin-2-pin compatibility with the DP83TG720 for potential future upgrades to 1000BASE-T1.

Drivers, Receivers, Transceivers Part Context

This component belongs to the DP83TC81x-Q1 family of automotive Ethernet PHYs from Texas Instruments. It shares the same physical footprint and pinout as the DP83TC811, DP83TC812, and DP83TG720 devices, facilitating direct PCB layout reuse across different bandwidth and feature requirements within the same automotive network architecture.

Drivers, Receivers, Transceivers Replacement Considerations

The DP83TC814S-Q1 is a pin-compatible substitute that adds SGMII support. The DP83TC811R-Q1 is a form-factor compatible predecessor with fewer diagnostic features. Verify that the specific electrical characteristics and bootstrap configurations align with the existing design if swapping between these variants.