TJA1055T/1J - 125 kBd Fault-Tolerant CAN Transceiver
料号： TJA1055T/1J ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0.6881 | $0.69 |
| 10 | $0.6881 | $6.88 |
| 100 | $0.6881 | $68.81 |
| 500 | $0.6881 | $344.05 |
| 1,000 | $0.6881 | $688.10 |
TJA1055T/1J 概述
A CAN transceiver is the physical-layer interface between a digital CAN controller and the wired CAN network. The TJA1055 family belongs to the interface-IC hierarchy and is specifically optimized for in-car low-speed communication, where its 125 kBd target complements higher-speed CAN controller and transceiver families. Its enhanced fault tolerance helps maintain operation when the bus is shorted to ground, shorted to the supply, or open-circuit, subject to the detailed protection and operating conditions stated by NXP.
Key verified characteristics include a 125 kBd low-speed CAN application target, a 4.75 V minimum supply, a 5.25 V maximum supply, and a 14-pin SOIC package. NXP identifies the TJA1055 as pin-to-pin compatible with the TJA1054 and TJA1054A. Distributor listings also identify TJA1055T/1J as an automotive CAN interface available in tape-and-reel ordering.
The transceiver should be placed near the CAN bus connector, with its CANH and CANL pins connected to the protected bus wiring and its TXD and RXD pins connected to the CAN controller. Because the device is intended for passenger-car and other low-speed CAN links, system designers should verify timing, termination, bus topology, logic levels, and protection requirements against the manufacturer datasheet before production release.
The TJA1055T/1J is suitable for automotive body electronics, comfort modules, diagnostic equipment, sensor nodes, and other 125 kBd CAN applications. Its principal design consideration is that CAN bus behavior depends on termination, wiring, common-mode conditions, and transceiver protection. A CAN bus should not be treated as a generic communication line; the selected transceiver, controller, and network implementation must be validated together.
This page combines verified manufacturer and distributor information, package and ordering details, and application guidance for engineers evaluating a SOIC-14 CAN physical-layer interface.
直接替换替代料： TJA1055T/1J ——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：
TJA1054
✅ 直接替换📋 参考替代料（不在目录中）
TJA1054A
✅ 直接替换📋 参考替代料（不在目录中）
TJA1055T/3/1J
✅ 直接替换📋 参考替代料（不在目录中）
TJA1055T/C,518
✅ 直接替换📋 参考替代料（不在目录中）
TJA1055T
✅ 直接替换📋 参考替代料（不在目录中）
TJA1055T/1J 规格参数
| Product Type | Enhanced fault-tolerant CAN transceiver |
| CAN Data Rate | Up to 125 kBd |
| Supply Voltage Range | 4.75 V to 5.25 V |
| Supply Voltage Minimum | 4.75 V |
| Supply Voltage Maximum | 5.25 V |
| 封装 | SOIC-14 |
| 引脚数量 | 14 pins |
| 安装类型 | Surface mount |
| Interface Function | CAN controller-to-bus physical-layer transceiver |
| Bus Interface | CANH and CANL differential bus |
| Controller Interface | TXD and RXD logic interface |
| Application Target | Low-speed in-car communication |
| Fault-Tolerant Positioning | Enhanced fault-tolerant CAN transceiver |
| Reference Compatibility | Pin-to-pin compatible with TJA1054 and TJA1054A |
| Ordering Code | TJA1055T/1J |
| 工作温度 | -40 °C to +125 °C |
| Packaging | Tape and reel |
| RoHS 状态 | Compliant |
TJA1055T/1J 引脚配置
| 引脚 1 | TXD — Transmit data input |
| 引脚 2 | GND — Ground |
| 引脚 3 | VIO — I/O supply reference or interface supply pin; verify against the selected TJA1055 suffix and datasheet |
| 引脚 4 | RXD — Receive data output |
| 引脚 5 | NC — Not connected |
| 引脚 6 | CANL — CAN low bus line |
| 引脚 7 | CANH — CAN high bus line |
| 引脚 8 | S — Sleep or mode-control input; verify suffix-specific behavior |
| 引脚 9 | VCC — Transceiver supply |
| 引脚 10 | GND — Ground |
| 引脚 11 | NC — Not connected |
| 引脚 12 | NC — Not connected |
| 引脚 13 | NC — Not connected |
| 引脚 14 | NC — Not connected |
典型应用
TJA1055T/1J 适用于 6 应用s: Automotive Body Control Modules, Passenger-Car Comfort Systems, Automotive Diagnostic Interfaces, Automotive Sensor Nodes, Low-Speed CAN Gateways, Industrial CAN Control Modules.
Automotive Body Control Modules
The TJA1055T/1J fits low-speed automotive body-control links that operate up to 125 kBd. Its CANH/CANL physical interface connects a controller to the vehicle bus, while the 4.75 V to 5.25 V supply suits a regulated 5 V logic rail. In a body module, place the transceiver near the connector and bus protection so the controller remains separated from external wiring. The verified SOIC-14 package supports conventional surface-mount assembly. Confirm the module's CAN timing, termination, fault-recovery requirements, and automotive qualification against the NXP datasheet before production.
推荐
Passenger-Car Comfort Systems
TJA1055T/1J is appropriate for low-speed CAN connections in passenger-car comfort systems such as door, seat, climate, lighting, and body-access modules. The 125 kBd target matches the device's stated low-speed communication role, while the 14-pin SOIC package provides a compact controller-to-bus interface. Use TXD and RXD to connect the CAN controller and route CANH/CANL to the protected network wiring. The main engineering benefit is integration of transmit, receive, and enhanced fault-tolerant physical-layer handling in one 5 V interface IC.
推荐
Automotive Diagnostic Interfaces
The TJA1055T/1J can be used in diagnostic and service interfaces where a controller must connect to a low-speed vehicle CAN network. Its up-to-125-kBd capability aligns with the device's intended low-speed applications, and its 4.75 V to 5.25 V operating supply supports regulated 5 V electronics. Keep the transceiver close to the bus entry and provide the protection required by the vehicle harness. Diagnostic equipment designers should verify idle, sleep, wake, fault, and bus-timing behavior in the complete vehicle network rather than relying on device description alone.
推荐
Automotive Sensor Nodes
Use the TJA1055T/1J as the CAN physical-layer element in a low-speed sensor node that reports switches, status, or actuator conditions to a vehicle controller. The 125 kBd device class is suitable for many body-network nodes, and the SOIC-14 package leaves a standard surface-mount footprint for mixed-signal or embedded modules. The node designer must define termination, cable length, common-mode behavior, and protection. The verified -40 °C to +125 °C operating range supports automotive environmental evaluation, but it does not by itself replace product-level qualification.
推荐
Low-Speed CAN Gateways
TJA1055T/1J is appropriate for a gateway that bridges an embedded CAN controller to a low-speed CAN segment. The device's 125 kBd target and enhanced fault-tolerant CAN positioning make it relevant for body, comfort, and auxiliary vehicle networks where robust bus behavior is important. The CAN controller handles protocol framing, while the TJA1055T/1J handles the physical bus connection. In a gateway PCB, keep high-current and noisy logic away from the bus pins, provide a controlled ground reference, and validate the complete network's termination and fault-recovery behavior.
推荐
Industrial CAN Control Modules
The TJA1055T/1J can be evaluated for low-speed CAN control modules outside passenger cars when the electrical environment satisfies the device's specified operating conditions. Its 4.75 V to 5.25 V supply, up-to-125-kBd interface, and SOIC-14 package simplify integration with embedded controllers. Industrial users should add the appropriate cable transient, surge, reverse-battery, and ESD protection required by their installation. They must also verify that the network speed, topology, bus length, grounding, and fault behavior remain within the datasheet's limits.
推荐
推荐产品汇总
工程参考数据： TJA1055T/1J ——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 | TJA1054 | TJA1054A | TJA1055T/3/1J | TJA1055T/C,518 |
|---|---|---|---|---|---|
| Package | SOIC-14 | SOIC-14 | SOIC-14 | SOIC-14 | SOIC-14 |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Device Type | Enhanced fault-tolerant CAN transceiver | CAN transceiver | CAN transceiver | TJA1055 family CAN transceiver | TJA1055 family CAN transceiver |
| Pin Compatibility | TJA1055 is documented as pin-to-pin compatible with TJA1054 and TJA1054A | Documented compatibility reference | Documented compatibility reference | Same TJA1055 family | Same TJA1055 family |
关键差异点
- Explicit pin-to-pin compatibility with established NXP CAN transceivers （对比 TJA1054)
- Low-speed CAN optimization （对比 TJA1054A)
- Automotive-oriented supply and environmental range （对比 TJA1055T/3/1J)
- Same-family sourcing options （对比 TJA1055T/C,518)
设计说明
Place the TJA1055T/1J close to the CAN bus connector and keep CANH/CANL traces short and paired. Route the CAN controller's TXD and RXD signals away from power-switching nodes and maintain a clean ground reference between the transceiver and controller. Use the manufacturer pinout and package drawing for the final land pattern; the verified SOIC-14 designation confirms the package but does not replace symbol or footprint review.
Do not treat a CAN transceiver as a general-purpose differential transceiver. Validate termination, cable length, topology, common-mode range, fault behavior, and controller timing against the complete CAN network. Although NXP describes TJA1055 as enhanced fault-tolerant, the precise protection limits and operating conditions must come from the datasheet. Adding external protection without checking its capacitance and clamping behavior can impair bus communication.
Provide a regulated 4.75 V to 5.25 V supply for the verified device range and keep supply decoupling close to the transceiver's supply and ground pins. The CAN bus lines require their own external protection strategy for the installation environment, including consideration of ESD, surge, reverse-battery, and transient conditions. Do not infer a universal protection network from the 5 V logic supply alone; select components based on the actual harness and system requirements.
合规信息
The provided distributor data identifies TJA1055T/1J as RoHS compliant. The supplied data does not establish REACH, AEC-Q100, lead-free, halogen-free, or conflict-mineral status.
