TJA1442AT/0Z - 5 Mbps CAN FD Transceiver | NXP
MPN: TJA1442AT/0Z ✓ ActiveTJA1442AT/0Z Overview
A CAN transceiver is an interface IC that connects a CAN controller or host processor to a physical two-wire CAN bus. It converts logic-level TXD and RXD signals into bus-compatible CAN signals and presents the received bus state to the controller. As a CAN FD-capable physical-layer device, the TJA1442AT/0Z supports communication networks whose controllers use the CAN FD protocol while remaining associated with the broader Controller Area Network ecosystem.
The TJA1442AT/0Z provides a 5 Mbps maximum data rate, a half-duplex 1-transmitter, 1-receiver configuration, and 50 mV receiver hysteresis. The specified 4.5 V to 5.5 V supply range permits operation from regulated 5 V rails. Receiver hysteresis helps distinguish signaling states around the bus decision threshold, while standby mode provides a mechanism for reducing activity when the node does not need normal bus communication.
The 8-SOIC package supports conventional surface-mount assembly and provides separate pins for the CAN bus, ground, supply, mode control, and controller-interface signals. The listed package dimensions correspond to an 8-pin SOIC with a 3.90 mm body width. The manufacturer describes the TJA144x family as compatible with existing high-speed classical CAN and CAN FD transceiver hardware, allowing retrofit without changing the established PCB footprint or associated software approach.
Typical uses include distributed industrial control, automotive electronic modules, building automation, robotics, and other embedded networks in which a host controller communicates over a two-wire CAN bus. The 5 Mbps capability is relevant to CAN FD nodes with greater payload throughput than classical CAN, while the half-duplex interface supports a shared bus architecture. Designers should still verify timing, termination, bus topology, and controller compatibility in the final system.
For PCB design, place the transceiver close to the CAN connector and bus routing, maintain a continuous ground path, and follow the manufacturer's application guidance for connector stubs and protection. The 4.5 V minimum supply requirement excludes direct operation below that voltage, so the device should be supplied from a regulated 5 V rail. Standby and mode-control behavior must also be checked against the host firmware power states.
This product record combines NXP manufacturer information, distributor package and lifecycle data, the official datasheet, and verified cross-reference results. It also separates documented electrical facts from unknown commercial details, making the page useful for initial design selection while clearly identifying where engineering verification or supplier confirmation is still required.
Drop-in alternatives for TJA1442AT/0Z — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
TJA1441AT/0Z
✅ Drop-InContact for price
View Datasheet →TJA1442AT/0Z Specifications
| Product Type | High-speed CAN FD transceiver |
| Protocol Support | CAN and CAN FD |
| Number of Transmitters | 1 |
| Number of Receivers | 1 |
| Duplex Mode | Half-duplex |
| Maximum Data Rate | 5 Mbps |
| Supply Voltage Range | 4.5 V to 5.5 V |
| Receiver Hysteresis | 50 mV |
| Operating Temperature | -40°C to +150°C (TJ) |
| Package | 8-SOIC, 3.90 mm width |
| Mounting Type | Surface mount |
| Standby Mode | Yes |
| Automotive Qualification | AEC-Q100 |
| Export Control Classification Number | EAR99 |
| Lifecycle Status | Active |
| Supplier Order Category | Transceiver, Driver, Receiver |
TJA1442AT/0Z 8-soic, 3.90 mm width Pin Configuration Guide
Pin configuration for TJA1442AT/0Z (8-soic, 3.90 mm width package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for TJA1442AT/0Z.
Refer to the datasheet for full pin configuration.
Typical Applications
TJA1442AT/0Z is suitable for 6 applications: Automotive CAN FD Electronic Control Units, Industrial Automation Control Networks, Robotics and Machinery Communication, Building Automation and Sensor Networks, High-Speed Data Acquisition Modules, Embedded CAN FD Gateway.
Automotive CAN FD Electronic Control Units
The TJA1442AT/0Z fits automotive electronic control units that connect a host controller to a two-wire CAN FD network. Its documented 5 Mbps maximum data rate supports higher-throughput CAN FD communication, while the 4.5 V to 5.5 V supply range is compatible with a regulated 5 V rail. AEC-Q100 qualification and the -40°C to +150°C junction-temperature specification support automotive qualification planning. The transmitter and receiver provide the physical bus interface, but final suitability still depends on the vehicle network’s timing, fault-management, and protection requirements.
Recommended
Industrial Automation Control Networks
The TJA1442AT/0Z can interface an industrial controller with CAN FD equipment operating on a shared bus. Its 5 Mbps data-rate capability is useful when nodes exchange larger payloads or operate at higher bus speeds than classical CAN systems. The half-duplex one-transmitter, one-receiver arrangement suits a multidrop two-wire network, while standby mode lets the host manage low-power states. Engineers must still verify cable length, termination, node count, grounding, and controller timing for the deployed industrial topology.
Recommended
Robotics and Machinery Communication
The TJA1442AT/0Z is suitable for connecting robotic controllers, machine modules, and actuator nodes over a CAN FD bus. A 5 Mbps interface can reduce transfer time when applications use CAN FD payloads, and the 8-SOIC package supports compact surface-mount assembly. Standby mode provides a way to coordinate reduced bus activity during inactive operating states. The final design should account for motor-generated electrical noise, bus protection, connector stubs, and the grounding requirements of industrial machinery.
Recommended
Building Automation and Sensor Networks
The TJA1442AT/0Z can connect building controllers, sensors, and actuators over a CAN FD network. The 4.5 V to 5.5 V operating range supports conventional regulated 5 V systems, and the 5 Mbps data rate allows the bus to serve more demanding node traffic than classical CAN. Its standby capability can support power-conscious peripheral nodes. Designers should assess bus length, branch-stub geometry, isolation requirements, and whether the building controller provides the required CAN FD physical-layer timing.
Recommended
High-Speed Data Acquisition Modules
The TJA1442AT/0Z can act as the bus-facing interface in a data-acquisition module that transfers command and status information through CAN FD. The 5 Mbps maximum rate provides a useful margin for fast update cycles and larger CAN FD frames. The half-duplex interface allows the module to participate on a shared bus, and standby mode can reduce activity when acquisition pauses. Designers should compare controller timing, arbitration behavior, termination, and isolation needs before selecting the exact network architecture.
Recommended
Embedded CAN FD Gateway
The TJA1442AT/0Z is appropriate for an embedded gateway that connects a CAN FD field bus to another communications or processing subsystem. Its one-driver, one-receiver half-duplex interface maps directly to a CAN controller’s TXD and RXD connections, while standby mode supports managed operating states. The 8-SOIC surface-mount package allows placement near the bus connector and protection network. A production gateway should verify signal-integrity layout, connector stubs, grounding, watchdog behavior, and host-controller CAN FD compatibility.
Recommended
Recommended Products Summary
Engineering reference data for TJA1442AT/0Z — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TJA1441AT/0Z |
|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors |
Key Differentiators
- Documented 5 Mbps CAN FD capability (vs TJA1441AT/0Z)
- Integrated standby operating mode (vs TJA1441AT/0Z)
- Documented automotive qualification (vs TJA1441AT/0Z)
Design Notes
Place the TJA1442AT/0Z close to the CAN connector and keep the CANH and CANL route as short and symmetrical as practical. Use a common ground plane, route the pair away from switching nodes and high-current paths, and follow the manufacturer’s recommended application circuit for decoupling. Connector stubs should remain within the limits supported by the complete bus topology because excessive stub length can degrade signal integrity at the documented 5 Mbps operating rate.
The transceiver requires a 4.5 V to 5.5 V supply, so a regulated 5 V rail is the appropriate starting point. Place the recommended input and output capacitors close to their associated pins and account for supply ripple and ground return paths. Standby control should be driven by a host signal that cannot float during reset; otherwise, the node’s bus state may be uncertain during startup or firmware recovery.
Do not infer complete pin compatibility from an 8-SOIC outline alone. Verify TXD, RXD, mode control, ground, supply, CANH, and CANL against the official pinout before layout release, especially when evaluating TJA1441AT/0Z as a substitute. Also confirm that the connected controller supports the selected CAN FD rate and arbitration behavior; a faster physical interface does not compensate for incompatible controller timing or bus topology.
CAN bus nodes in automotive, industrial, and machinery systems can be exposed to conducted and radiated transients. Use the protection strategy recommended by NXP for the target installation, including appropriate bus protection and a controlled ground arrangement. Protection-device capacitance and clamp behavior should be checked against the 5 Mbps signal integrity budget so that the protective network does not unnecessarily degrade edge quality.
Compliance Information
The verified product data identifies AEC-Q100 automotive qualification and EAR99 classification. RoHS, REACH, lead-free, halogen-free, and conflict-minerals statements were not present in the supplied data and therefore remain unknown.
