TJA1057T - 1 Mbit/s High-Speed CAN Transceiver | NXP
部品番号: TJA1057T ✗ 生産終了TJA1057T 概要
A CAN transceiver is an interface IC within the broader network-interface and automotive electronics hierarchy. It converts the controller's logic-level TXD and RXD signals into a differential bus waveform and converts received bus levels back into a logic signal. This physical-layer function complements the CAN controller, which implements frame handling, arbitration, error detection, and protocol processing above the physical layer.
The verified NXP material identifies the TJA1057 as a member of the Mantis family of high-speed CAN transceivers. The implementation is described as compatible with the CAN physical layer defined in ISO 11898-2:2016 and SAE J2284-1 through SAE J2284-5. The TJA1057T itself is specified for communication rates up to 1 Mbit/s, while the datasheet states that enhanced timing characteristics permit reliable use during the CAN FD fast phase at rates up to 5 Mbit/s for other supported variants.
Automotive network design is the principal use case because the device couples a CAN protocol controller to the vehicle's two-wire bus. It is also relevant to industrial automation, robotics, building automation, and embedded equipment that uses classic CAN rather than a proprietary differential bus. The 8-pin SO package permits compact implementation in conventional through-hole automotive and industrial controller boards.
The central engineering considerations are bus termination, common-mode behavior, transceiver supply requirements, loop delay, and controller timing. A CAN bus normally uses 120-ohm termination at both ends of the network. The transceiver itself does not replace the external bus resistors, and system designers must also account for parasitic cable and stub effects when choosing bit rates, routing, and protection networks.
Because the supplied excerpts do not expose the complete ordering table, electrical limits, pin names, thermal ratings, or verified distributor prices, those details remain explicitly unresolved rather than being inferred. Engineers should use the official NXP datasheet for the final schematic, component values, timing budget, and production release decisions. The TJA1057T is marked NRND on the official NXP product page, so long-term procurement should be confirmed before committing new designs.
This page consolidates the verified manufacturer lifecycle status, CAN standards coverage, data-rate distinction, packaging information, and practical application guidance. It also identifies data gaps and avoids presenting unverified electrical specifications or unsupported drop-in replacements as verified facts.
ドロップイン代替品: TJA1057T — 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。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: TJA1057T （同一形状・フットプリント） — 相違点: Mounting Type, Package, Data Rate, Function, Standby Mode.
TJA1051T/CM118
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TJA1050T/CM118
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TJA1044T/1Z
✅ ドロップイン価格はお問い合わせください
データシートを見る →TJA1057T 仕様
| Product Type | High-speed CAN transceiver |
| データレート | 1 Mbit/s for TJA1057T |
| CAN FD Fast-Phase Support | Up to 5 Mbit/s for other TJA1057 variants |
| Bus Interface | Two-wire differential CAN bus |
| Logic Interface | CAN protocol controller |
| CAN Physical-Layer Standard | ISO 11898-2:2016 |
| Automotive Timing Standards | SAE J2284-1 to SAE J2284-5 |
| Product Family | Mantis |
| パッケージ | 8-pin SO package |
| 実装タイプ | Through-hole |
| ライフサイクル状態 | NRND |
TJA1057T 8-pin so package ピン配置ガイド
TJA1057T (8-pin so package 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: TJA1057T.
詳細は データシート をご参照ください。
主な用途
TJA1057T の用途: 6 件s: Automotive CAN Networks, Industrial Automation Equipment, Robotics and Motion Control, Building Automation Networks, Embedded CAN Gateways, Automotive Diagnostics and Test Equipment.
Automotive CAN Networks
The TJA1057T fits an automotive high-speed CAN node because it provides the differential transmitter and receiver required between a CAN controller and a two-wire vehicle bus. Its verified maximum data rate is 1 Mbit/s, matching conventional high-speed CAN communication rather than a general-purpose differential transceiver. In an engine, body, gateway, or instrument-cluster controller, the device translates TXD and RXD logic signals to and from the physical bus. The NXP datasheet references ISO 11898-2:2016 and SAE J2284-1 through J2284-5, which are directly relevant to physical-layer and automotive timing evaluation. Because the part is marked NRND, engineers should use it primarily for maintenance of qualified designs or after confirming availability, rather than assuming long-term supply security.
おすすめ
Industrial Automation Equipment
The TJA1057T is appropriate for industrial automation modules that use a classic CAN physical layer at rates no higher than 1 Mbit/s. It provides the interface between a microcontroller-hosted CAN controller and equipment buses used for sensors, drives, remote I/O, and supervisory control. Its differential CAN implementation is better suited to electrically noisy industrial environments than a single-ended communication path, although the complete EMC and immunity ratings must be checked in the official datasheet. The 8-pin SO package also supports conventional controller-board layouts. Designers should retain external bus protection and proper termination because the transceiver's physical-layer role does not by itself guarantee complete industrial surge, ESD, or ground-fault resilience.
おすすめ
Robotics and Motion Control
The TJA1057T can serve as the bus interface on a robot controller, motor controller, or distributed actuator node that uses a two-wire CAN network. Its verified 1 Mbit/s capability is sufficient for command, status, and diagnostic traffic when the network is designed within that rate, while differential signaling provides a practical basis for communication between modules that may share a common ground. The transceiver leaves CAN framing and arbitration to the protocol controller, allowing the selected microcontroller to handle identifiers, arbitration, acknowledgments, and error management. In a robotics system, add suitable bus protection and maintain controlled cable routing because long cables and branch stubs can reduce usable margin even when the nominal data rate is within specification.
おすすめ
Building Automation Networks
The TJA1057T is usable in building automation controllers, room-control units, and HVAC interface boards that communicate over a wired CAN-style network. At up to 1 Mbit/s, it supports deterministic command and diagnostic traffic while offloading analog signal levels from the host controller. The eight-pin SO package simplifies repair and legacy-controller compatibility, but lifecycle planning remains important because NXP marks the device NRND. For building systems, designers should verify the official electrical limits, temperature range, and EMC performance for the installation environment. External termination, surge protection, and common-mode considerations are especially relevant when CAN wiring passes between floors or adjacent to mains-derived equipment.
おすすめ
Embedded CAN Gateways
The TJA1057T can bridge a CAN controller to a two-wire physical bus in embedded gateways that aggregate sensor data or expose legacy automotive-style interfaces. Its role is deliberately limited to the physical layer: the host processor must implement the CAN protocol controller functions, while the TJA1057T handles differential transmission and reception. This division makes the device useful for diagnostic tools, test fixtures, and communication concentrators. At the verified 1 Mbit/s limit, network loading and protocol efficiency must be considered under worst-case traffic. Engineers should also account for transceiver loop delay within the controller timing budget and verify whether the NRND status is acceptable for the product's planned production lifetime.
おすすめ
Automotive Diagnostics and Test Equipment
The TJA1057T is suitable for diagnostic adapters, interface modules, and test equipment intended to communicate with conventional high-speed CAN systems. Its 1 Mbit/s specification allows the adapter to participate in normal bus traffic, while its differential receiver provides a defined interface to a two-wire CAN network. The eight-pin SO package supports straightforward insertion into purpose-built interface boards, although the final product still needs the appropriate connector, isolation decisions, protection, and bus termination. Because this is an NRND device, laboratory and validation equipment may continue to use it for reproducing an existing design, but new production platforms should compare current lifecycle alternatives. The official datasheet remains the controlling reference for pinout and timing.
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: TJA1057T — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
TJA1051T/CM118, TJA1050T/CM118, and TJA1044T appear in the verified comparison results as related candidates, but the excerpts do not establish identical pinouts or complete electrical equivalence. Consider one only after a manufacturer-data review confirms package dimensions, TXD and RXD compatibility, supply voltage, logic thresholds, loop delay, standby behavior, and fault tolerance. For a genuinely new design, also compare current active alternatives rather than assuming an NRND component is preferable solely because it matches an older schematic.
代替品との比較
| パラメータ | この製品 | TJA1051T/CM118 | TJA1050T/CM118 | TJA1044T |
|---|---|---|---|---|
| Package | 8-pin SO package | SO-8 | SO-8 | SO-8 |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Product Type | High-speed CAN transceiver | CAN transceiver | CAN transceiver | High-speed CAN transceiver |
主な差別化要因
- Verified 1 Mbit/s high-speed CAN rating （vs TJA1051T/CM118)
- Mantis-family positioning （vs TJA1050T/CM118)
- Direct automotive timing-standard references （vs TJA1044T)
設計ノート
Do not treat a shared SO-8 outline as proof of drop-in compatibility. Before substituting TJA1051T/CM118, TJA1050T/CM118, or TJA1044T, compare TXD and RXD pin positions, supply pins and voltage range, standby behavior, input thresholds, loop delay, dominant-state behavior, bus-fault handling, and exposed package dimensions against the official TJA1057 datasheet. The supplied comparison excerpts do not provide this complete pin-level evidence, so laboratory validation and board review remain necessary.
Place the transceiver close to the CAN connector or bus-header entry point to minimize the length of unprotected stub. Keep the CANH and CANL routing as a closely coupled differential pair, use the same reference plane where practical, and avoid unrelated test pads or routing in the gap between the pair. The PCB implementation must preserve the datasheet's recommended grounding and decoupling arrangement; consult the official application guidance before finalizing the return path and supply layout.
Design the transceiver supply rail around the official input-voltage range, local bypass capacitance, and controller sequencing requirements, none of which are numerically present in the supplied excerpts. Avoid deriving those values from another TJA10xx device because different family members can use different supply limits or logic thresholds. Verify startup, bus-standoff, and fault states in the complete datasheet, and include reverse-voltage or supply-transient protection only where it does not interfere with the manufacturer's specified operating conditions.
Build the CAN timing budget from the controller's propagation delay, the transceiver's loop-delay symmetry, cable delay, and the network's bit timing. Although the TJA1057T is verified up to 1 Mbit/s, that limit does not make every topology acceptable: long cables, excessive stubs, poor termination, or ground offsets can reduce margin. Confirm the selected sample rate, oscillator tolerance, termination placement, and timing parameters using the official datasheet and an oscilloscope measurement on the final board.
コンプライアンス情報
The supplied excerpts identify an automotive CAN application and reference SAE J2284 timing standards, but they do not explicitly state this exact part's RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than assumed.
