TJA1102HN/0Z - Dual 100BASE-T1 Automotive Ethernet PHY | NXP
MPN: TJA1102HN/0Z ✓ فعالTJA1102HN/0Z نمای کلی
A 100BASE-T1 Ethernet PHY is a physical-layer transceiver that converts digital MAC data into signals suitable for single-pair twisted-pair automotive networks. The TJA1102 belongs to the broader hierarchy of Ethernet PHY transceiver, network interface controller, communications semiconductor, and integrated-circuit product categories. Unlike conventional multi-pair Ethernet, 100BASE-T1 carries 100 Mbit/s over one twisted pair, reducing wiring weight while supporting vehicle communication networks.
The principal benefits of the TJA1102HN/0Z are its two-channel architecture, IEEE 100BASE-T1 compliance, 100 Mbit/s data rate, and automotive qualification. The exposed pad in the 56-HVQFN package provides a thermal and electrical land pattern on the PCB. Its sleep and wake-up forwarding function allows network activity to resume without requiring a separate switch, MAC, or host action for forwarding, supporting low-power vehicle-network architectures.
Technically, the device combines two automotive Ethernet channels in one package and provides the physical-layer interface required by an IEEE 100BASE-T1 network. NXP identifies the TJA1102 as a highly integrated dual-port PHY and notes that it is fully qualified for automotive applications. Detailed electrical limits, pin functions, transceiver timing, EMC limits, and thermal metrics are not included in the supplied distributor extracts and must therefore be confirmed in the manufacturer documentation before schematic release.
Typical uses include vehicle infotainment systems, in-vehicle Ethernet backbones, automotive domain controllers, zonal controllers, telematics units, advanced driver-assistance systems, and other ECUs that exchange data over single-pair Ethernet. The dual-channel configuration can simplify PCB allocation when a controller requires two 100BASE-T1 links, while sleep and wake-up forwarding supports power-conscious network nodes that must react quickly to remote traffic.
Designers should preserve the manufacturer's HVQFN land pattern, thermal-pad layout, and reference-design stack-up rather than treating the part as a generic QFN. Automotive Ethernet also requires controlled return paths, appropriate connector and cable integration, validated EMC behavior, and careful separation from high-current or high-diversity radio-frequency systems. The precise pin assignments, recommended external network components, and layout clearances require the complete NXP datasheet.
This page combines verified manufacturer and distributor information, package and lifecycle details, drop-in replacement research, a parameter-oriented comparison, and practical integration guidance. It distinguishes confirmed TJA1102HN/0Z attributes from specifications that still require validation from the complete manufacturer datasheet, helping engineers evaluate the device without treating missing data as guaranteed performance.
جایگزین‌های drop-in برای TJA1102HN/0Z — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای TJA1102HN/0Z (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Automotive Qualification, Package, Product Type.
TJA1102AHN
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
TJA1102HN/0Z مشخصات
| Product Type | Dual-port automotive Ethernet PHY transceiver |
| Ethernet Standard | IEEE 100BASE-T1 |
| Number of Ports | 2 ports |
| نرخ داده | 100 Mbit/s |
| Transmit and Receive Support | 100 Mbit/s transmit and receive |
| بسته‌بندی | 56-pin HVQFN, 8 mm x 8 mm |
| نوع نصب | Surface mount |
| Exposed Thermal Pad | Present |
| Automotive Qualification | AEC-Q100 qualified |
| Application Qualification | Fully qualified for automotive applications |
| Sleep and Wake-Up Forwarding | Compliant with the OPEN Alliance sleep/wake-up specification |
| Wake-Up Request Forwarding | Supported |
| Packaging Type | Tape and reel |
| Network Medium | Single-pair twisted-pair automotive Ethernet |
| Transceiver Pin Count | 56 pins |
راهنمای پیکربندی پین TJA1102HN/0Z 56-pin hvqfn, 8 mm x 8 mm
پیکربندی پین برای TJA1102HN/0Z (پکیج 56-pin hvqfn, 8 mm x 8 mm). شماره‌گذاری پایه‌ها، عملکردها و نمودارهای اتصال در دیتاشیت سازنده تعریف شده است. برای footprint دقیق و دستورالعمل‌های لحیم‌کاری به آن مراجعه کنید.
داده پین‌آوت تفصیلی موجود نیست برای TJA1102HN/0Z.
به دیتاشیت برای پیکربندی کامل پین‌ها.
کاربردهای معمول
TJA1102HN/0Z مناسب است برای 6 کاربردs: Automotive Domain Controller, In-Vehicle Ethernet Backbone, Zonal Controller, Advanced Driver-Assistance ECU, Telematics and Communication Gateway, Infotainment Head Unit.
Automotive Domain Controller
The TJA1102HN/0Z fits a domain controller that requires two 100 Mbit/s automotive Ethernet links on one PCB. Its two integrated 100BASE-T1 channels provide a direct physical-layer interface for backbone traffic, while the 56-pin HVQFN package consolidates two ports into an 8 mm x 8 mm footprint. The automotive qualification supports use in harsh vehicle environments. Engineers should use the NXP reference layout, preserve the exposed-pad connection, and validate connector, cable, return-path, and EMC behavior in the final vehicle platform. Sleep and wake-up forwarding is particularly useful when the controller must remain asleep until network activity appears, reducing the need for an additional forwarding action by a host switch or MAC.
پیشنهادی
In-Vehicle Ethernet Backbone
The TJA1102HN/0Z is suitable for an in-vehicle Ethernet backbone node that must connect two 100BASE-T1 links to an ECU or switch. Each PHY channel supports 100 Mbit/s transmit and receive operation, allowing the device to serve as a physical-layer endpoint within an IEEE 100BASE-T1 network. Its dual-channel integration reduces the number of separate PHY packages compared with two discrete single-port devices. Automotive qualification is the central selection factor, while OPEN Alliance-compliant sleep and wake-up forwarding supports networks that are expected to remain quiet for extended periods. Layout review should include the exposed-pad connection, supply routing, high-speed return paths, and the test points required for production automotive Ethernet validation.
پیشنهادی
Zonal Controller
The TJA1102HN/0Z fits a zonal controller positioned between vehicle sensors, actuators, and a central compute node. Two 100 Mbit/s 100BASE-T1 channels provide physical-layer connectivity without requiring two separate PHY packages, while the 56-pin HVQFN package supports compact board placement. The device's automotive qualification and wake-up forwarding behavior are useful in systems that spend significant time in low-power states but must respond to traffic from another vehicle node. A zonal-controller implementation must be checked against the exact NXP reference schematic and layout because the supplied distributor extracts do not include pin-level bypass requirements, EMC margins, or trace-length guidance. The final design should also verify that two links do not exceed the controller's overall power and thermal budget.
پیشنهادی
Advanced Driver-Assistance ECU
The TJA1102HN/0Z can support an ADAS electronic control unit that exchanges sensor or control data over automotive Ethernet. Its dual 100BASE-T1 channels support 100 Mbit/s operation for each physical link, while qualification for automotive applications aligns with the environmental and reliability expectations of vehicle systems. The compact HVQFN package helps when board space is constrained, but thermal performance must be evaluated using the complete NXP power and thermal data rather than the distributor summary alone. The exposed pad should be connected according to the manufacturer layout, and the PHY's digital interface should be reviewed against the selected processor or switch. Cable, connector, EMC, and system sleep behavior require validation at the complete ECU level.
پیشنهادی
Telematics and Communication Gateway
The TJA1102HN/0Z is applicable to an automotive telematics gateway that bridges vehicle Ethernet domains through one or two 100BASE-T1 physical links. The dual-channel implementation permits two network attachments without allocating separate PHY packages, and 100 Mbit/s per channel provides a defined base rate for control and service traffic. Automotive qualification makes the device suitable for vehicle-network roles, while sleep and wake-up forwarding allows remote nodes to be awakened efficiently. The gateway design should account for the device's complete electrical specifications, thermal output, and exposed-pad construction. Production validation should cover EMC behavior in the installed enclosure, wake-up interoperability with the selected network manager, and consistency with the OEM's 100BASE-T1 cabling and connector implementation.
پیشنهادی
Infotainment Head Unit
The TJA1102HN/0Z fits an infotainment head unit requiring a compact interface to a single-pair automotive Ethernet network. Two 100 Mbit/s channels can support separate vehicle-network segments or redundant topology options, depending on the host architecture. The 56-pin HVQFN package conserves PCB area, and the device's automotive qualification supports deployment inside the passenger compartment. The PHY can complement an automotive Ethernet switch such as the NXP SJA1105 family when the head unit needs to aggregate several network nodes. Careful layout is required around the exposed pad and high-speed traces, while sleep and wake-up forwarding can improve standby behavior. The complete NXP schematic and layout must establish the actual interface topology, and the final design must be tested with the production harness, cables, and connectors.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای TJA1102HN/0Z — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
Consider the TJA1102AHN when NXP's newer revision is preferred for board-space optimization or product lifecycle alignment, but do not approve it as a drop-in substitute without confirming package dimensions, pin names, strap behavior, electrical limits, and qualification for the exact ordering code. The TJA1101AHN/0Z and TJA1100HNZ may be relevant family comparisons, but the supplied data does not prove that they provide two channels or match the 56-pin footprint. For a single-link ECU, a verified single-port PHY can reduce unused channel power and simplify the design. For any final selection, confirm current availability, unit and volume pricing, lifecycle status, and all electrical and layout data against the complete NXP documentation.
مقایسه با جایگزین‌ها
| پارامتر | این محصول | TJA1102AHN |
|---|---|---|
| Package | 56-pin HVQFN, 8 mm x 8 mm | 56-pin HVQFN - manufacturer confirmation required |
| Brand | NXP Semiconductors | NXP Semiconductors |
| Port Count | 2 ports | Dual-port or single-port family offering |
| Ethernet Standard | IEEE 100BASE-T1 | IEEE 100BASE-T1 |
| Board-Space Optimization | Dual channels in a 56-pin HVQFN | Described as optimized for board space |
تفاوت‌های کلیدی
- Two integrated 100BASE-T1 channels in one automotive-qualified package (در مقابلTJA1102AHN)
- Confirmed automotive qualification for the target ordering code (در مقابلTJA1102AHN)
- Documented sleep and wake-up forwarding behavior (در مقابلTJA1102AHN)
یادداشت‌های طراحی
Use the exact 56-pin HVQFN land pattern and exposed-pad geometry from the NXP package drawing rather than a generic QFN footprint. The exposed pad is part of the thermal and electrical connection, so its via arrangement and paste process should follow the manufacturer reference design. The supplied extracts do not specify stack-up, via count, or clearance values; those details require the complete datasheet and layout guidance before release.
Route both 100BASE-T1 channels as controlled high-speed links with continuous return paths, short connections to their respective network components, and no unnecessary stubs. Keep the digital host interface and supply routing separated from sensitive analog or network-side nodes where the reference design allows it. Because exact differential impedance and spacing data are absent from the supplied sources, use NXP's stack-up and layout examples rather than deriving values from generic Ethernet guidance.
Do not finalize supply rails, bypass capacitors, or power sequencing from the distributor summary alone. The confirmed sources establish a 7.5745 USD price, package, channel count, and 100 Mbit/s operation but omit operating voltage, current consumption, and capacitor requirements. Review the complete NXP datasheet for input-voltage limits, supply sequencing, decoupling, and exposed-pad power distribution, then confirm the selected automotive supply transient and EMC test conditions.
Treat TJA1102AHN as a revision candidate rather than an automatic substitution for TJA1102HN/0Z. NXP describes TJA1102A as optimized for board space, but the supplied results do not establish identical pin assignments, package drawings, electrical limits, or qualification details for the exact ordering code. A drop-in decision requires a side-by-side comparison of pin names, exposed-pad connections, strap options, interface timing, and absolute maximum ratings.
Validate the complete ECU and harness rather than evaluating the PHY package in isolation. Automotive Ethernet performance can depend on connector geometry, cable impedance, common-mode behavior, chassis grounding, and the placement of the ECU relative to high-power systems. Use the manufacturer's EMC test setup and reference layout, and verify sleep and wake-up forwarding across the intended network topology before production release.
اطلاعات انطباق
Arrow identifies the TJA1102HN/0Z as an AEC-Q100 automotive PHY. The supplied extracts do not independently state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status.
