DP83TD555J-Q1 - 10BASE-T1S SPI MAC-PHY Transceiver | TI
料号： DP83TD555J-Q1 ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4.95 | $4.95 |
| 10 | $4.55 | $45.50 |
| 100 | $3.98 | $398.00 |
| 500 | $3.52 | $1,760.00 |
| 1,000 | $3.15 | $3,150.00 |
DP83TD555J-Q1 概述
A 10BASE-T1S MAC-PHY transceiver is a physical-layer device that combines an integrated IEEE 802.3 media access controller (MAC) with the 10BASE-T1S PHY, offloading Ethernet protocol handling from a host MCU. Within the automotive Ethernet ecosystem it serves as a low-cost, lightweight alternative to CAN and LIN for in-vehicle networking, supporting multidrop topologies of more than 25 m cable and over 16 nodes depending on channel characteristics.
Key features include AEC-Q100 qualification for automotive environments, an OA-compliant 3-pin SPI host interface, TC10 wake/sleep functionality with remote wake-up over the Ethernet data line, and integrated diagnostics such as cable fault detection, undervoltage monitoring, and overtemperature monitoring. OA TC14 compliance enables advanced diagnostics and topology discovery, streamlining system development and maintenance.
The integrated MAC architecture eliminates the need for a discrete external MAC, reducing BOM cost and PCB area in resource-constrained ECUs. Half-duplex multidrop operation over a single unshielded twisted pair makes the device well suited to zonal and body-domain network topologies, where many low-bandwidth nodes share one bus segment. Power consumption is optimized through TC10 sleep modes with data-line remote wake-up.
Typical applications include automotive body control modules, door modules, seat control, lighting control, and sensor fusion nodes, as well as industrial and building automation systems requiring single-pair Ethernet. Low standby power makes it ideal for always-on, battery-sensitive automotive systems.
When designing with the DP83TD555J-Q1, follow TI datasheet recommendations for differential-pair PCB layout, power-supply decoupling, bus termination, and ESD protection for robust operation in harsh automotive electrical environments.
直接替换替代料： DP83TD555J-Q1 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
DP83TD535-Q1
⚡ 相同封装📋 参考替代料（不在目录中）
DP83TD530-Q1
⚡ 相同封装📋 参考替代料（不在目录中）
TJA1410
⚡ 相同封装📋 参考替代料（不在目录中）
ADIN1140BCPZ
⚡ 相同封装 ⚠️ 规格未核验✓ 有现货
$2.24 / 个
查看数据手册 →DP83TD555J-Q1 规格参数
| Standard | IEEE 802.3cg 10BASE-T1S |
| Open Alliance Compliance | TC10, TC14 |
| 数据速率 | 10 Mbps |
| Duplex Mode | Half-duplex |
| 拓扑 | Multidrop or point-to-point |
| Host Interface | OA-compliant 3-pin SPI (MAC-PHY) |
| Integrated MAC | Yes (IEEE 802.3 MAC) |
| Cable Reach | >25 m cable, >16 nodes depending on channel |
| Cable Type | Unshielded twisted pair (single pair) |
| Common-Mode Voltage Tolerance | Extended |
| Wake/Sleep | TC10 wake/sleep, remote wake-up over data line |
| Diagnostics | Cable fault detection, undervoltage and overtemperature monitoring, TC14 topology discovery |
| Automotive Qualification | AEC-Q100 qualified |
| RoHS 状态 | Compliant |
DP83TD555J-Q1 standard 引脚配置指南
DP83TD555J-Q1（standard 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： DP83TD555J-Q1.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DP83TD555J-Q1 适用于 6 应用s: Automotive Body Control Modules, Door and Seat Control Nodes, Automotive Lighting Control, Zonal Gateway Architectures, Industrial Sensor and Actuator Networks, Building Automation and HVAC.
Automotive Body Control Modules
Body control modules aggregate switching, sensing, and diagnostics across doors, lamps, and loads. The DP83TD555J-Q1 fits because its 10 Mbps multidrop 10BASE-T1S bus carries more bandwidth than LIN while reusing one unshielded twisted pair, and its extended common-mode voltage tolerance survives automotive transients. TC10 sleep with data-line remote wake-up cuts standby current, while TC14 topology discovery and cable fault detection simplify EOL test and field service.
推荐
Door and Seat Control Nodes
Door and seat modules are cost- and space-constrained ECUs sharing low-to-medium bandwidth sensor and actuator traffic. The DP83TD555J-Q1's SPI MAC-PHY interface lets low-pin-count MCUs without an Ethernet MAC join the SPE bus directly, and multidrop operation lets >16 nodes share one >25 m bus segment, saving wiring harness cost. TC10 remote wake-up over the data line removes the need for an extra wake wire in the door harness.
推荐
Automotive Lighting Control
Matrix and zonal lighting nodes require synchronized, low-latency command traffic. The DP83TD555J-Q1 delivers 10 Mbps half-duplex Ethernet transport with deterministic OA TC10 sleep/wake behavior and diagnostics to detect harness opens/shorts via cable fault detection. Its undervoltage and overtemperature monitoring protects against load-dump-associated faults, and the integrated MAC offloads protocol processing from small lighting MCUs connected only through SPI.
推荐
Zonal Gateway Architectures
Zonal architectures replace long point-to-point harnesses with short local SPE bus segments terminating at a zonal gateway. The DP83TD555J-Q1 aggregates >16 sensor/actuator nodes per 10BASE-T1S segment with TC14 topology discovery for plug-and-play node identification. Extended common-mode tolerance and AEC-Q100 qualification ensure robustness on the unfused or lightly fused in-vehicle supply rails typical of zonal drop points.
推荐
Industrial Sensor and Actuator Networks
Industrial single-pair Ethernet (SPE) deployments benefit from multidrop 10 Mbps connectivity to sensors and actuators over cost-effective unshielded twisted pair. The DP83TD555J-Q1, though AEC-Q100 automotive-qualified (exceeding industrial requirements), provides the same SPI MAC-PHY simplicity: any MCU with SPI becomes an Ethernet node. Cable fault detection and overtemperature monitoring improve plant maintenance, and TC10 wake/sleep minimizes idle power in battery-powered nodes.
推荐
Building Automation and HVAC
Building controllers, dampers, and HVAC sensors often sit on long shared runs where conventional Ethernet switches per node are uneconomical. The DP83TD555J-Q1 supports >25 m multidrop segments with up to 16+ nodes on one unshielded twisted pair, offering IP-native connectivity at CAN-like cabling cost. TC10 sleep with remote data-line wake-up suits periodically active battery-backed devices, and integrated diagnostics detect wiring faults without a field visit.
推荐
推荐产品汇总
工程参考数据： DP83TD555J-Q1 ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | DP83TD535-Q1 | DP83TD530-Q1 | TJA1410 |
|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | NXP Semiconductors |
| Standard | IEEE 802.3cg 10BASE-T1S | IEEE 802.3cg 10BASE-T1S | IEEE 802.3cg 10BASE-T1S | 10BASE-T1S OA TC14 |
| Integrated MAC | Yes (OA SPI MAC-PHY) | No (PMD transceiver) | No (PMD transceiver) | No (PMD transceiver) |
| Host Interface | OA-compliant 3-pin SPI | MII-style (host MAC required) | MII-style (host MAC required) | 3-pin OA interface |
| TC10 Wake/Sleep | Yes, remote wake over data line | Yes | Yes | Yes |
| AEC-Q100 | Qualified | Qualified | Qualified | Qualified (Grade 1) |
| Diagnostics / TC14 | Cable fault, UV/OT monitoring, TC14 topology discovery | TC10 diagnostics | TC10 diagnostics | TC14 topology discovery |
关键差异点
- Integrated Ethernet MAC (OA SPI MAC-PHY) （对比 TJA1410)
- Same-family scalability （对比 DP83TD535-Q1)
- TC14 topology discovery （对比 DP83TD530-Q1)
设计说明
Follow TI datasheet layout guidance for the 10BASE-T1S differential pair: keep the MDI traces as a 100-ohm differential pair with matched length, place the coupling network and termination components close to the transceiver pins, and route away from switching-regulator nodes. Solid ground plane under the pair preserves common-mode performance, which is critical for the extended common-mode voltage tolerance specification.
Decouple the transceiver supply with low-ESR ceramic capacitors at each VDD pin per TI datasheet recommendations. The device monitors undervoltage, so ensure the local supply rail remains within spec during cranking and load-dump transients; an upstream AEC-Q100 qualified regulator such as TPS65386x-Q1 is recommended for body-domain ECUs.
TC10 wake/sleep requires all nodes on the segment to implement consistent sleep/wake state machines - a single non-compliant node can keep the bus awake. Validate TC14 topology discovery with the full node count planned for the harness, since >25 m / >16 node reach is channel-dependent per the TI datasheet. Do not exceed the multidrop budget with stubs; stubs degrade signal integrity on the shared bus.
合规信息
AEC-Q100 qualified for automotive per TI datasheet. RoHS/lead-free per standard TI automotive product page data; REACH and halogen-free status not stated in provided data.
