TJA1448AT/0Z - 5Mbps Dual CAN Transceiver | NXP | Automotive
MPN： TJA1448AT/0Z ✓ 啟用中TJA1448AT/0Z 概覽
A CAN transceiver is the physical-layer interface between a digital CAN controller and the differential CAN bus. It converts logic-level TXD and RXD signals into bus-compatible differential signaling, while providing the receiver path back to the controller. The TJA1448 provides two complete CAN channels, making it useful where a system requires redundant channels, gateway isolation, or simultaneous communication across separate CAN buses.
The TJA1448AT/0Z supports Normal, Silent, Sleep, and Standby operating modes according to the product information. Its dual-channel architecture, 5 Mbit/s capability, and 5 V operation make it appropriate for automotive body and chassis electronics, industrial automation equipment, robotics, transport systems, and CAN FD gateways. Standby mode is particularly useful in systems that need to retain low-power behavior while supporting controlled transitions between operating states.
The device is identified as an automotive AEC-Q100 part in distributor product information, making it relevant to automotive qualification programs. Its 14-pin SOIC package supports conventional surface-mount assembly and integration into compact controller boards. Because the TJA1448 family is described as pin-compatible with existing dual high-speed CAN and CAN FD transceiver designs, it can be considered during replacement projects after confirming the exact pin functions, operating-mode logic, and bus timing of the incumbent device.
For robust implementation, place the transceiver close to the CAN connector and route the CANH and CANL conductors as a differential pair with controlled impedance. Keep the bus stubs short, provide the required termination at both ends of the network, and follow the decoupling and grounding recommendations in the NXP datasheet. Review low-power mode transitions and fault behavior against the system’s wake-up and diagnostic requirements before finalizing the design.
直接替換替代品，適用於 TJA1448AT/0Z — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： TJA1448AT/0Z （相同外形與佔位） — 差異在於 Automotive Qualification, Mounting Type, Package.
TJA1448AT/0Z 規格
| Product Type | Dual high-speed CAN transceiver |
| CAN Channel Count | 2 channels |
| Supported Protocol | Classical CAN and CAN FD |
| Maximum CAN Data Rate | 5 Mbit/s |
| 供應電壓 | 5 V |
| Operating Mode | Normal, Silent, Sleep, and Standby |
| Bus Interface | Two-wire differential CAN bus |
| Transceiver Type | Transmitter and receiver, 2/2 configuration |
| 封裝 | 14-pin SOIC |
| 安裝類型 | Surface mount |
| Automotive Qualification | AEC-Q100 |
| 生命週期狀態 | Active |
| RoHS 狀態 | Compliant |
| Manufacturer | NXP Semiconductors |
| Document Type | Short data sheet |
TJA1448AT/0Z 14-pin soic 腳位配置指南
TJA1448AT/0Z（14-pin soic 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： TJA1448AT/0Z.
請參閱 資料表 以查看完整腳位配置。
典型應用
TJA1448AT/0Z 適用於 6 應用s: Automotive Body Control Modules, CAN FD Automotive Gateways, Industrial Automation Controllers, Robotics Control Systems, CAN FD Sensor Hubs, Transport and Rail Communication Equipment.
Automotive Body Control Modules
The TJA1448AT/0Z fits dual-channel automotive body and chassis electronics that communicate over Classical CAN or CAN FD. Its two independent transceiver channels can connect a body controller to separate bus domains, reducing the number of physical interface devices on the board. The 5 Mbit/s capability supports CAN FD communication, while the identified AEC-Q100 status is relevant to automotive qualification programs. Design engineers should verify the exact ordering variant, temperature grade, mode-control polarity, and production traceability against the vehicle program.
推薦
CAN FD Automotive Gateways
A gateway combining different vehicle domains can use the TJA1448AT/0Z to provide two high-speed CAN physical interfaces. Supporting data rates up to 5 Mbit/s allows the gateway to participate in CAN FD networks while retaining compatibility with Classical CAN traffic handled by the connected protocol controllers. The 14-pin SOIC package supports standard surface-mount assembly, and Normal, Silent, Sleep, and Standby modes provide options for managing active and low-power operating states.
推薦
Industrial Automation Controllers
The TJA1448AT/0Z is appropriate for industrial automation equipment requiring two CAN endpoints and support for CAN FD up to 5 Mbit/s. It can connect a controller to servo drives, sensors, remote I/O, or machine subnets while providing selectable Normal, Silent, Sleep, and Standby modes for system power management. The 5 V supply and 14-pin SOIC package simplify integration, but system qualification should confirm the required operating-temperature range, isolation strategy, ESD environment, and protection network.
推薦
Robotics Control Systems
Mobile robots and industrial robotic cells can use the TJA1448AT/0Z for separate CAN communication channels linking motion controllers, safety subsystems, sensors, and remote actuators. CAN FD support up to 5 Mbit/s is useful where control traffic requires more bandwidth or efficient payload handling, while two channels reduce board area compared with separate single-channel transceivers. Designers should preserve the CANH/CANL differential topology, control bus stubs, and validate wake-up behavior for Sleep and Standby transitions.
推薦
CAN FD Sensor Hubs
A sensor hub requiring multiple high-speed CAN links can place the TJA1448AT/0Z between its host controller and external sensing modules. The dual-channel arrangement supports concurrent communication with separate CAN networks, and the 5 Mbit/s rate permits CAN FD operation where higher payload efficiency is needed. Place the device near the bus connectors, maintain controlled differential routing, and use the manufacturer’s grounding and decoupling guidance to preserve transceiver performance in compact multi-sensor assemblies.
推薦
Transport and Rail Communication Equipment
Rail vehicles, transportation controllers, and other mobile equipment can use the TJA1448AT/0Z for dual CAN links connecting diagnostic, traction, or subsystem controllers. The 14-pin SOIC package is convenient for established surface-mount PCB designs, while CAN FD capability up to 5 Mbit/s supports modern high-speed bus traffic. The automotive AEC-Q100 identification is helpful in vehicle-related designs, but non-automotive transport programs must separately verify temperature, environmental, and qualification requirements.
推薦
推薦產品摘要
工程參考資料，適用於 TJA1448AT/0Z — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | TJA1059 |
|---|---|---|
| Manufacturer | NXP Semiconductors | NXP Semiconductors |
| Package | 14-pin SOIC | 14-pin SOIC |
| Channel Count | 2 CAN channels | 2 CAN channels |
| Protocol Support | Classical CAN and CAN FD | Classical CAN |
| Bus Interface | Two-wire differential CAN bus | Two-wire differential CAN bus |
主要差異化特點
- Adds CAN FD support within the dual-channel replacement family (對比TJA1059)
- Provides four named operating modes (對比TJA1059)
- Targets automotive CAN FD communication (對比TJA1059)
設計說明
Place the TJA1448AT/0Z close to the CAN connector and route CANH and CANL as a controlled-impedance differential pair. Keep the traces short, minimize vias, avoid routing the pair over discontinuous plane references, and keep switching or high-current paths spatially separate. Place the bus protection and termination components where they can connect cleanly to the connector and transceiver pins without creating long stubs.
Use the NXP datasheet pin-description table as the authority for supply, ground, mode-control, logic, and CAN bus connections before PCB release. Decouple the 5 V supply locally and provide a low-impedance return path beneath the device. The available product summary does not enumerate every pin function, so the complete pin table should be checked to prevent net-assignment or mode-polarity errors.
Do not select the TJA1448AT/0Z solely because it is described as a CAN FD replacement. Verify the incumbent transceiver’s package drawing, pin functions, supply voltage, standby-control logic, receiver-output behavior during low-power states, maximum bus data rate, and automotive qualification. A retrofit also requires checking termination, protection components, bus topology, and controller timing against the new device’s data sheet.
Validate the complete CAN network rather than only the transceiver pins. Use the proper termination at both physical ends of the bus, minimize node and stub lengths, and check timing margin at the highest intended data rate. For CAN FD at 5 Mbit/s, confirm the selected controller, transceiver delay, cable type, topology, and environmental conditions satisfy the network design limits.
合規資訊
RoHS compliance is identified in product listings, and the TJA1448AT/0Z is identified as an AEC-Q100 automotive part. Other environmental and material-compliance attributes are not stated in the available product records.