TJA1448AT/0Z - 5Mbps Dual CAN Transceiver | NXP | Automotive
Référence : TJA1448AT/0Z ✓ ActifTJA1448AT/0Z Présentation
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.
Alternatives de remplacement direct pour TJA1448AT/0Z — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec TJA1448AT/0Z (même facteur de forme et même empreinte) — différant par Automotive Qualification, Mounting Type, Package.
TJA1059TK
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Voir la fiche technique →TJA1448AT/0Z Spécifications
| 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 |
| Tension d'alimentation | 5 V |
| Operating Mode | Normal, Silent, Sleep, and Standby |
| Bus Interface | Two-wire differential CAN bus |
| Transceiver Type | Transmitter and receiver, 2/2 configuration |
| Boîtier | 14-pin SOIC |
| Type de montage | Surface mount |
| Automotive Qualification | AEC-Q100 |
| Statut du cycle de vie | Active |
| Statut RoHS | Compliant |
| Manufacturer | NXP Semiconductors |
| Document Type | Short data sheet |
Guide de configuration des broches du TJA1448AT/0Z 14-pin soic
Configuration des broches du TJA1448AT/0Z (boîtier 14-pin soic). La numérotation des broches, les fonctions et les schémas de connexion sont définis dans la fiche technique du fabricant. Consultez-la pour l'empreinte exacte et les directives de soudage.
Aucune donnée de brochage détaillée disponible pour TJA1448AT/0Z.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
TJA1448AT/0Z convient pour 6 applications: 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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
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.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour TJA1448AT/0Z — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | 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 |
Principaux différenciateurs
- Adds CAN FD support within the dual-channel replacement family (vs TJA1059)
- Provides four named operating modes (vs TJA1059)
- Targets automotive CAN FD communication (vs TJA1059)
Notes de conception
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.
Informations de conformité
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.