TJA1101AHN/0Z - 100BASE-T1 Automotive Ethernet PHY | NXP
MPN: TJA1101AHN/0Z ✓ AktifTJA1101AHN/0Z Ringkasan
An automotive Ethernet PHY is a physical-layer interface IC that converts serial digital data into electrical signaling for a 100BASE-T1 network and converts received signaling back into digital data. Within the product hierarchy, the TJA1101AHN/0Z is an Ethernet transceiver, a network interface IC, and a semiconductor designed for automotive communication networks. Its single-port architecture targets one physical 100BASE-T1 link per device.
The TJA1101 family is positioned as a high-performance single-port automotive Ethernet PHY compliant with IEEE 100BASE-T1. The TJA1101B is identified by NXP as a revision of the successful TJA1101A. The compact 36-HVQFN package supports surface-mount PCB construction and helps reduce board area compared with larger leaded transceiver packages. Exact electrical ratings, clocking requirements, register defaults, and thermal limits must be taken from the manufacturer datasheet.
The device is suitable for automotive Ethernet applications requiring a dedicated 100BASE-T1 physical-layer interface. Its 100BASE-T1 capability supports low-data-rate single-pair networking for vehicle systems, where reducing cable weight and electrical complexity can be valuable. Integration with a host microcontroller or automotive processor remains system-specific, so communication interfaces, interrupt behavior, and bus-management functions should be checked against the relevant datasheet and reference design.
A typical design places the TJA1101AHN/0Z between the vehicle network wiring and an automotive Ethernet-capable host processor. The 36-HVQFN footprint requires careful PCB layout and thermal management. Power, ground, clock, and signal-pin connections must follow the NXP datasheet exactly, particularly for high-speed differential pairs and exposed thermal pad connections.
Before schematic capture, confirm the electrical limits, recommended operating conditions, external component values, and package land pattern in the manufacturer documentation. Use the TJA1101 reference information for system-level validation rather than inferring network performance solely from the 100BASE-T1 label.
This page combines package and IEEE 100BASE-T1 identity, sourcing guidance, replacement considerations, and design-focused application guidance to support faster component evaluation and PCB planning.
Pilihan pengganti yang segera untuk TJA1101AHN/0Z — sama paket, pin-pin kompatibel. Bahagian paket yang berbeza memerlukan kerja ulang PCB diasingkan.
Varietas dalam siri ini
Model serupa yang kompatibel dengan pengganti yang segera TJA1101AHN/0Z (sama faktor bentuk dan kaki) — berbeza dalam Package, Product Type, Automotive Qualification, Port Count.
TJA1100HNZ
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Lihat Datasheet →TJA1102HN/0Z
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Lihat Datasheet →TJA1101AHN/0Z Spesifikasi
| Product Type | Single-port Ethernet PHY transceiver |
| Ethernet Standard | IEEE 100BASE-T1 |
| Transceiver Count | 1 transceiver |
| Port Count | 1 port |
| Kadar Data | 100 Mbit/s |
| Duplex Mode | Full duplex |
| Device Generation | 2nd generation |
| Kemasan | 36-HVQFN |
| Package Dimensions | 6 mm x 6 mm |
| Jenis Pemasangan | Surface mount |
| Application | Automotive Ethernet |
| IEEE Compliance | IEEE 100BASE-T1 compliant |
Panduan Konfigurasi Pin TJA1101AHN/0Z 6 mm x 6 mm
Konfigurasi pin untuk TJA1101AHN/0Z (6 mm x 6 mm pakai). Penomeran pin, fungsi, dan garis bentuk koneksi ditakrifkan dalam dokumen pengeluar. Rujuk dokumen untuk kebentuk dan pedoman pengasman.
Tiada data garisan pin yang diperoleh untuk TJA1101AHN/0Z.
Rujuk kepada lembaran data untuk konfigurasi pin penuh.
Aplikasi Biasa
TJA1101AHN/0Z patut untuk 6 aplikasis: Automotive 100BASE-T1 Vehicle Network, Automotive Gateway and Telematics Unit, Electric Vehicle Powertrain Controller, Body Electronics Controller, ADAS Sensor Network Interface, Industrial 100BASE-T1 Control Network.
Automotive 100BASE-T1 Vehicle Network
The TJA1101AHN/0Z fits a vehicle-network design requiring one IEEE 100BASE-T1 link at 100 Mbit/s. Its single-port, full-duplex transceiver provides the physical-layer connection between an automotive Ethernet-capable host controller and twisted-pair wiring. The 36-HVQFN package measures 6 mm by 6 mm, helping equipment designers conserve PCB area in compact electronic control units. Integration planning should account for the documented power rails, host interface, clocking, reference components, and PHY management registers. The device is identified as a second-generation TJA1101 family member and should be validated against the current NXP documentation before production release.
Automotive Gateway and Telematics Unit
TJA1101AHN/0Z can provide the 100BASE-T1 physical-layer endpoint in an automotive gateway or telematics unit that exchanges data between an in-vehicle Ethernet segment and a higher-level processing subsystem. The 100 Mbit/s full-duplex rate and one-port architecture align with a single network branch, while the surface-mount 36-HVQFN package supports dense controller-board assembly. Board partitioning should separate sensitive differential signaling from switching regulators and high-current loads. Confirm thermal performance, EMC implementation, wake-up behavior, and network-management software against the manufacturer documentation before releasing the design.
Electric Vehicle Powertrain Controller
The TJA1101AHN/0Z is applicable to an electric-vehicle powertrain controller when that subsystem communicates over an IEEE 100BASE-T1 network. The device offers a dedicated full-duplex 100 Mbit/s transceiver for one vehicle Ethernet link and uses a compact 6 mm by 6 mm HVQFN package. This can simplify physical-layer integration next to a powertrain controller or safety-oriented communication processor. Because automotive qualification details are not established by the product-type listing alone, engineers must verify temperature range, AEC-Q100 status, supply limits, fault behavior, and functional-safety assumptions for the exact ordered suffix.
Body Electronics Controller
TJA1101AHN/0Z can support a body-electronics controller that connects a distributed vehicle subnet to a central body domain controller. The single IEEE 100BASE-T1 port provides a full-duplex 100 Mbit/s physical layer without requiring a multiport Ethernet switch. Its small 36-HVQFN footprint helps preserve board area for sensing, actuation, and power-conversion circuitry. Layout should provide a continuous return path beneath the differential pair and follow the manufacturer's component-placement guidance. Firmware integration also needs the correct PHY driver, register initialization, diagnostic handling, and network conformance requirements for the selected automotive platform.
ADAS Sensor Network Interface
The TJA1101AHN/0Z may be used at an ADAS sensor-network boundary where a controller requires a dedicated IEEE 100BASE-T1 physical interface. One full-duplex 100 Mbit/s port allows a sensor or domain controller to be attached to a vehicle Ethernet segment while the host processor handles higher-level data and control functions. The compact 6 mm by 6 mm HVQFN package is suitable for space-constrained electronics. Engineer the implementation around the manufacturer's recommended power, grounding, decoupling, and differential-pair layout. Validate cable reach, EMC performance, link startup, diagnostics, and latency behavior in the complete vehicle network.
Industrial 100BASE-T1 Control Network
TJA1101AHN/0Z can serve a compact industrial controller that uses a single 100BASE-T1 link for communication with a remote sensor, actuator, or service interface. The 100 Mbit/s full-duplex operation and one-transceiver arrangement fit point-to-point industrial Ethernet branches where cable simplicity matters. Because the device is identified primarily as an automotive Ethernet PHY, industrial use requires explicit review of operating temperature, supply range, EMC classification, qualification status, and long-term availability. The schematic and PCB should follow the NXP reference implementation, including component values, clock source, reset behavior, and exposed-pad thermal construction.
Data referensi kejuruteraan untuk TJA1101AHN/0Z — perbandingan, panduan rancangan, dan maklumat kesediaan
Panduan Pilihan
Perbandingan dengan Gantian
| Parametr | Produk Ini | TJA1100HNZ | TJA1102HN/0Z |
|---|---|---|---|
| Brand | NXP | NXP | NXP |
| Package | 36-HVQFN (6x6 mm) | 36-HVQFN package family | 36-HVQFN package family |
| Product Type | Single-port Ethernet PHY transceiver | Ethernet interface IC | Ethernet interface IC |
| Device Generation | 2nd-generation TJA1101 family | TJA1100 family | TJA1102 family |
| Mounting Type | Surface mount | Surface mount | Surface mount |
Penyeberangsung Jelas
- Second-generation TJA1101A positioning (vsTJA1100HNZ)
- Purpose-built 100BASE-T1 interface (vsTJA1102HN/0Z)
- Single-port full-duplex architecture (vsTJA1100HNZ)
- Compact surface-mount implementation (vsTJA1102HN/0Z)
Catatan Desain
Use the NXP datasheet land pattern for the 36-HVQFN package and preserve the exposed-pad connection and paste design exactly. A generic 36-pin QFN footprint cannot be assumed to be interchangeable because pad length, pad width, thermal-via pattern, and mask clearance can differ. Place the PHY close to its clock and decoupling components, and verify the assembly process against the manufacturer package recommendations.
Route the 100BASE-T1 differential pair as a controlled-impedance pair with symmetrical geometry and a continuous reference plane. Avoid adding unmatched stubs, test pads, or routing discontinuities that can degrade signal integrity. Keep the pair away from switching nodes and high-current return paths. Final trace geometry and termination or bias components should follow the NXP reference design and PCB stack-up requirements.
The 36-HVQFN package requires attention to its exposed thermal pad and the PCB copper available for heat removal. Follow the manufacturer's maximum junction-temperature limits and exposed-pad via recommendations rather than estimating thermal performance from package size alone. Validate the assembled design across ambient temperature, vehicle supply transients, and the maximum expected Ethernet activity for the selected system.
Do not substitute TJA1100HNZ or TJA1102HN/0Z solely because the parts appear in the same HVQFN family. Compare the complete pin table, data-rate mode, host interface, clock requirements, supply voltages, management registers, initialization sequence, and exposed-pad geometry. Firmware and hardware changes may be required even when the land pattern is similar, so a package-first substitution can create functional failures.
Maklumat Kesediaan
The product is identified as an automotive Ethernet PHY, but the exact RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals declarations were not established by the cited manufacturer or distributor text.
