DP83TD555J-Q1 - 10BASE-T1S SPI MAC-PHY Transceiver | TI
MPN: DP83TD555J-Q1 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.2 | $4.20 |
| 10 | $3.8 | $38.00 |
| 100 | $3.3 | $330.00 |
| 500 | $2.95 | $1,475.00 |
| 1,000 | $2.6 | $2,600.00 |
Drop-in alternatives for DP83TD555J-Q1 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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Request AlternativesDP83TD555J-Q1 Maximum Ratings & Electrical Characteristics
| Standard Compliance | IEEE 802.3cg 10BASE-T1S, OA TC10, OA TC14 |
| Data Rate | 10 Mbps |
| Topology | Multidrop or point-to-point, half-duplex |
| Host Interface | OA-compliant 3-pin SPI MAC-PHY interface |
| Integrated MAC | Yes (IEEE 802.3 MAC) |
| Cable Support | Unshielded twisted pair, >25 m, >16 nodes (channel dependent) |
| Wake/Sleep | OA TC10 wake/sleep, remote wake over data line |
| Diagnostics | Cable fault detection, undervoltage, overtemperature monitoring |
| Automotive Qualification | AEC-Q100 qualified |
| Common-Mode Tolerance | Extended common-mode voltage tolerance |
| Supply Voltage | [DATA_NEEDED: supply voltage] |
| Operating Temperature | [DATA_NEEDED: operating temperature range] |
| Package | [DATA_NEEDED: package type] |
| Mounting Type | Surface Mount |
| RoHS Status | [DATA_NEEDED: RoHS status] |
| Lifecycle Status | Active |
DP83TD555J-Q1 Pin Configuration
| Pin 1 | [DATA_NEEDED] — Pinout must be confirmed from the TI datasheet (https://www.ti.com/lit/gpn/dp83td555j-q1) |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
DP83TD555J-Q1 is suitable for 6 applications: Automotive Body Control Modules, Door and Seat Control Modules, Automotive Lighting Control, Zonal Gateway and Sensor Fusion Nodes, Industrial Automation SPE Nodes, Building Automation and Surveillance.
Automotive Body Control Modules
Body control modules (BCMs) aggregate dozens of low-bandwidth loads such as pumps, wipers, and locks across the vehicle. The DP83TD555J-Q1 fits this application because its 10 Mbps multidrop 10BASE-T1S bus supports >25 m of cable and >16 nodes on a single unshielded twisted pair, dramatically reducing harness weight versus point-to-point CAN. Its AEC-Q100 qualification, extended common-mode tolerance, and TC10 remote wake over the data line keep BCM nodes available at near-zero standby current.
Recommended
Door and Seat Control Modules
Door and seat modules host window motors, mirrors, memory seats, and switches - classic multidrop SPE endpoints. The DP83TD555J-Q1 is used here because its integrated MAC plus OA 3-pin SPI interface lets low-pin-count MCUs join the Ethernet bus without an external MAC, cutting BOM cost. Cable fault detection and TC14 topology discovery accelerate end-of-line diagnostics of door harnesses, where pinched or chafed wiring is a common warranty failure mode.
Recommended
Automotive Lighting Control
Exterior and interior lighting nodes benefit from the DP83TD555J-Q1's low EMI half-duplex 10BASE-T1S signaling and TC10 sleep states, which limit quiescent draw when lamps are off. The 10 Mbps bus is more than adequate for command/status traffic across front, rear, and ambient lighting nodes sharing one segment. Remote wake-up over the data line enables instant lighting response from the gateway without a dedicated wake wire in the harness.
Recommended
Zonal Gateway and Sensor Fusion Nodes
In zonal architectures, SPE segments terminate at zonal controllers that fuse sensor data and bridge to the vehicle backbone. The DP83TD555J-Q1's TC14 diagnostics support topology discovery across the multidrop segment, simplifying bring-up of mixed sensor nodes. Pairing the MAC-PHY with a TDA4 or AM263x-class processor at the zone controller gives SPI-attached Ethernet without dedicating the processor's Ethernet MAC peripheral to the low-speed segment.
Recommended
Industrial Automation SPE Nodes
Industrial field devices - drives, I/O blocks, sensors - increasingly adopt single-pair Ethernet for IP-based control. The DP83TD555J-Q1's 10 Mbps multidrop topology with >16 nodes per segment and >25 m reach maps directly to machine-level I/O buses. Its robust common-mode tolerance withstands electrically noisy factory floors, while TC14 cable diagnostics reduce commissioning and maintenance time in hard-to-access installations.
Recommended
Building Automation and Surveillance
Access-control readers, occupancy sensors, and IP camera peripherals benefit from single-pair Ethernet that carries both power-friendly low-bandwidth data and diagnostics over existing twisted pair. The DP83TD555J-Q1's TC10 wake/sleep lets battery-backed door sensors sleep between events and wake via the data line, while its SPI MAC-PHY interface works with cost-optimized MCUs. IEEE 802.3cg compliance ensures interoperability with emerging SPE ecosystems.
Recommended
Recommended Products Summary
Engineering reference data for DP83TD555J-Q1 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DP83TD510E-Q1 | DP83TC811S-Q1 | TJA1410ATK | ADIN2111 |
|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | NXP Semiconductors | Analog Devices |
| Package | [DATA_NEEDED: package type] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Standard | IEEE 802.3cg 10BASE-T1S | IEEE 802.3cg 10BASE-T1S | IEEE 802.3bw 100BASE-T1 | 10BASE-T1S OA TC14 | 10BASE-T1L |
| Data Rate | 10 Mbps | 10 Mbps | 100 Mbps | 10 Mbps | 10 Mbps |
| Host Interface | OA 3-pin SPI MAC-PHY | MII/RMII PHY interface | SGMII/RGMII PHY interface | OA 3-pin interface (PMD) | SPI MAC/switch |
| Integrated MAC | Yes | No | No | No | Yes (switch) |
| TC10 Wake/Sleep | Yes | Yes | [DATA_NEEDED] | Yes | [DATA_NEEDED] |
| AEC-Q100 | Qualified | Qualified | Qualified | Qualified (Grade 1) | [DATA_NEEDED] |
| Topology | Multidrop / point-to-point half-duplex | Multidrop / point-to-point | Point-to-point | Multidrop | Point-to-point |
Key Differentiators
- Integrated IEEE 802.3 MAC behind OA SPI interface (vs TJA1410ATK)
- Multidrop topology with >25 m and >16 nodes (vs DP83TC811S-Q1)
- TC10 wake/sleep with remote wake over data line (vs DP83TD510E-Q1)
Design Notes
Follow TI datasheet layout guidance: keep the MDI differential pair as a 100-ohm impedance controlled pair, matched in length, placed directly from the transceiver to the common-mode choke and ESD protection near the connector. Provide solid ground reference under the pair and adequate decoupling on all supply pins. Route the OA 3-pin SPI with controlled impedance and keep traces short to preserve signal integrity at the SPI clock rate.
Multidrop 10BASE-T1S performance depends on channel quality: minimize stub lengths at each node and validate total cable length against the >25 m / >16 node datasheet limits for your cable type. Do not omit the recommended bus termination network; unterminated stubs cause reflections that reduce noise margin. Use TC14 cable fault detection during production test to catch harness defects before they become field failures.
Exploit TC10 wake/sleep to minimize system standby current: configure nodes to sleep and wake remotely over the data line instead of using a dedicated wake wire. Verify supply sequencing and undervoltage thresholds in the diagnostic configuration so brownout events during crank are reported, and confirm overtemperature monitoring thresholds align with the ECU thermal design.
Compliance Information
AEC-Q100 qualified per TI datasheet. RoHS/REACH/lead-free status not stated in provided data - verify on TI.com product page.
