TJA1145T/FDJ - 2 Mbit/s CAN FD Transceiver | NXP
部品番号: TJA1145T/FDJ ✗ 生産終了TJA1145T/FDJ 概要
A CAN transceiver is a physical-layer interface IC that connects a host controller or microcontroller to a Controller Area Network bus. The TJA1145 combines the CAN physical-layer transceiver with partial-networking functionality, allowing a node to remain selectively awake while other portions of a vehicle network are inactive. In this product hierarchy, it is a CAN interface IC, bus transceiver, network interface, and power-management-aware communication component.
The device is fully compliant with ISO 11898-2:2003, ISO 11898-5:2007, and ISO 11898-6:2013. Its timing is guaranteed for CAN communication rates up to 2 Mbit/s. The FD-passive implementation is designed to ignore CAN FD frames while the device waits for a valid wake-up frame in Sleep or Standby mode, reducing unnecessary wake-up activity while preserving selective network communication.
The TJA1145 family is optimized for in-vehicle high-speed networking. Partial networking reduces the electrical burden associated with waking every node on a CAN bus, which is particularly valuable in distributed automotive systems containing multiple control modules, body-comfort systems, and diagnostic equipment. Its autonomous bus-biasing feature supports bus management according to ISO 11898-6:2013.
Typical uses include vehicle CAN gateways, body-control modules, infotainment interfaces, electronic control units, comfort systems, and gateway nodes that must wake selectively from a partially sleeping network. The TJA1145T/FDJ is especially relevant where a design needs CAN FD-aware wake behavior, high-speed operation, and the established SO14 footprint associated with the TJA1145T family.
Designers should verify the exact pin configuration, operating voltage, transceiver-mode behavior, external component requirements, and PCB land pattern against the NXP TJA1145 datasheet before release. The verified lifecycle information indicates that TJA1145T is at End of Life, so procurement planning and migration assessment are important for long-running automotive programs.
This page combines verified manufacturer specifications, distributor availability, lifecycle information, same-footprint migration evidence, and practical engineering guidance. It distinguishes documented electrical facts from parameters that still require confirmation from the manufacturer datasheet, helping engineers evaluate the TJA1145T/FDJ without relying on assumptions.
ドロップイン代替品: TJA1145T/FDJ — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
TJA1145AT/FD/0Z
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TJA1145T/FDJ 仕様
| Product Type | High-speed CAN transceiver for partial networking |
| CAN Data Rate | Up to 2 Mbit/s |
| CAN FD Support | FD-passive behavior in TJA1145/FD variants |
| ISO 11898-2 Compliance | ISO 11898-2:2003 |
| ISO 11898-5 Compliance | ISO 11898-5:2007 |
| ISO 11898-6 Compliance | ISO 11898-6:2013 |
| Bus Biasing | Autonomous according to ISO 11898-6:2013 |
| Package Type | SO14 plastic small-outline package |
| Lead Count | 14 leads |
| Package Pitch | 1.27 mm |
| Package Body Length | 8.65 mm |
| Package Body Width | 3.9 mm |
| Package Body Height | 1.75 mm |
| 実装タイプ | Surface mount |
| Product Lifecycle | End of Life |
TJA1145T/FDJ 1.75 mm ピン配置ガイド
TJA1145T/FDJ (1.75 mm パッケージ) のピン配置。 ピン番号、機能、接続図はメーカーのデータシートで定義されています。正確なフットプリントとはんだ付けのガイドラインについては、データシートを参照してください。
詳細なピン配置データはありません: TJA1145T/FDJ.
詳細は データシート をご参照ください。
主な用途
TJA1145T/FDJ の用途: 6 件s: Selective Automotive Network Wake-up, Vehicle CAN Gateway, Body-Control Module, In-Vehicle Comfort System, CAN Bus Diagnostic Interface, High-Speed CAN Network Interface.
Selective Automotive Network Wake-up
The TJA1145T/FDJ fits a CAN node that must wake selectively while other vehicle-network segments remain inactive. Its partial-networking implementation and FD-passive behavior allow the device to ignore CAN FD frames while waiting for a valid wake-up frame in Sleep or Standby mode. The verified 2 Mbit/s timing capability supports high-speed in-vehicle communication, while autonomous bus biasing provides ISO 11898-6:2013-compatible bus management. For a new design, engineers should evaluate TJA1145AT/FD/0Z because NXP documents it as a no-hardware-change replacement and the TJA1145T family is End of Life.
おすすめ
Vehicle CAN Gateway
The TJA1145T/FDJ is suitable for a gateway that connects a CAN bus segment to another vehicle domain while allowing the attached segment to sleep independently. Its partial-networking function helps reduce unnecessary node wake-ups, and its FD-passive mode limits wake recognition to a valid wake-up frame while CAN FD traffic is ignored in Sleep or Standby. Guaranteed operation up to 2 Mbit/s covers high-speed CAN physical-layer requirements. The SO14 package and documented NXP replacement path make the device especially relevant to legacy gateway programs, although new programs should first confirm TJA1145AT/FD/0Z availability and qualification.
おすすめ
Body-Control Module
A body-control module can use the TJA1145T/FDJ to join a high-speed CAN bus without forcing every attached network node to remain active. The transceiver's autonomous bus biasing follows ISO 11898-6:2013, supporting consistent bus behavior when the module is connected to other CAN nodes. Its timing guarantee to 2 Mbit/s accommodates high-speed vehicle communications, while FD-passive behavior helps distinguish a valid wake request from ordinary CAN FD activity during low-power states. Since the family is End of Life, an existing production platform should assess TJA1145AT/FD/0Z to avoid long-term sourcing exposure.
おすすめ
In-Vehicle Comfort System
The TJA1145T/FDJ fits comfort and body systems that must remain responsive to selective CAN wake-up requests without keeping the entire vehicle bus active. Its high-speed CAN physical layer is guaranteed to 2 Mbit/s, while FD-passive operation ignores CAN FD frames during Sleep or Standby until a valid wake-up frame is recognized. That behavior can lower unnecessary communication activity in distributed comfort networks. Because verified voltage, temperature, and output ratings were not supplied, engineers must validate those limits and the exact SO14 pin configuration from the NXP datasheet before release.
おすすめ
CAN Bus Diagnostic Interface
The TJA1145T/FDJ can serve as the physical-layer interface in a diagnostic or service node connected to a high-speed vehicle CAN bus. Its autonomous bus biasing provides ISO 11898-6:2013-compatible bus behavior, and the 2 Mbit/s timing guarantee supports the stated high-speed CAN operating range. Partial networking lets the node participate without requiring every remote module to wake continuously, which is useful for maintenance and diagnostic gateways. The verified data does not specify diagnostic mode timing or MCU supply levels, so those functions require confirmation against the manufacturer datasheet and application guidance.
おすすめ
High-Speed CAN Network Interface
The TJA1145T/FDJ is appropriate when an embedded controller needs a high-speed CAN physical-layer connection with selective wake behavior. Compliance with ISO 11898-2:2003 and ISO 11898-5:2007 supports conventional high-speed CAN operation, while ISO 11898-6:2013 and autonomous bus biasing address bus-management behavior. Data rates are guaranteed up to 2 Mbit/s, and the FD variants provide FD-passive wake filtering. The part is packaged in a compact 14-lead SO14 outline, but exact host-side pin functions and electrical limits must be taken from the NXP datasheet because they were not included in the supplied verification extract.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: TJA1145T/FDJ — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | TJA1145AT/FD/0Z |
|---|---|---|
| Product Type | High-speed CAN transceiver for partial networking | TJA1145 family CAN transceiver |
| Brand | NXP Semiconductors | NXP Semiconductors |
| Package | SO14 | SO14 |
| Lead Count | 14 leads | 14 leads |
| Package Pitch | 1.27 mm | 1.27 mm |
| Replacement Evidence | End-of-life TJA1145T family member | Documented replacement without hardware or software changes |
主な差別化要因
- Verified no-change migration option （vs TJA1145AT/FD/0Z)
- Selective CAN wake behavior （vs TJA1145AT/FD/0Z)
- High-speed timing coverage （vs TJA1145AT/FD/0Z)
設計ノート
Use the NXP TJA1145 recommended SO14 land pattern rather than deriving it from body dimensions alone. The verified package has 14 leads on 1.27 mm pitch, but lead width, span, and solder-mask details are not included in the supplied data. Preserve the manufacturer-recommended CANH and CANL routing and component placement, and validate EMC and signal-integrity performance using the application guidance in the datasheet.
The verified extract does not provide operating-voltage limits, transceiver-mode current, or explicit quiescent-current figures. Do not infer these values from the ISO standards or from another TJA1145 variant. Before schematic release, confirm the supply range, ground connections, sleep and standby behavior, and power-domain requirements directly from the NXP datasheet, then calculate the worst-case supply dissipation with the selected bus state.
Do not assume that every CAN FD frame is handled identically by this transceiver. The NXP datasheet specifically describes FD-passive behavior for the TJA1145/FD variants: CAN FD frames are ignored while the device waits for a valid wake-up frame in Sleep or Standby mode. Validate wake-up logic in hardware and software, and avoid describing the FD-passive feature as unrestricted CAN FD payload transparency.
Because the TJA1145T family is listed as End of Life, a prototype is not sufficient evidence of sustainable production supply. Record the exact source, date code, quantity, and incoming-inspection criteria for each lot. For new production, evaluate TJA1145AT/FD/0Z, which NXP Community guidance states replaces TJA1145T/FDJ without hardware or software changes, and complete all qualification reviews before substitution.
コンプライアンス情報
The verified data confirms compliance with ISO 11898-2:2003, ISO 11898-5:2007, and ISO 11898-6:2013. RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals statuses were not explicitly supplied and therefore remain unknown.
