TJA1442BT/0Z - 5 Mbps CAN FD Transceiver | NXP
MPN: TJA1442BT/0Z ✓ ActiveTJA1442BT/0Z Overview
A CAN transceiver is the physical-layer interface between a CAN protocol controller and the two-wire CAN bus. Within the automotive electronics hierarchy, this device belongs to the CAN transceiver class, which operates between a CAN controller, also called a CAN controller area network interface, and the physical CANH and CANL bus conductors. NXP describes the TJA1442 as a simple replacement intended to avoid hardware and software design changes when retrofitting existing applications.
The TJA1442BT/0Z provides a 5 Mbps CAN FD data rate and includes a dedicated Standby operating mode. Its 4.5 V to 5.5 V supply range supports regulated 5 V automotive and industrial electronic systems. The half-bus transceiver arrangement places the CAN bus interface, TXD receive path, RXD output path, logic reference, standby control, and supply connections in a compact 8-pin SO surface-mount package.
Automotive qualification makes the TJA1442BT/0Z relevant to vehicle body, comfort, powertrain-adjacent, and industrial CAN networks where high-temperature operation and long-term availability are important. The manufacturer identifies RoHS compliance, lead-free construction, and RoHS-compliant tape-and-reel presentation. The -40 °C to +150 °C operating range is especially relevant where equipment can be exposed to elevated ambient temperatures inside an enclosure or vehicle cabin.
Typical uses include retrofitting an existing TJA1042 or TJA1044GT CAN node, building a 5 Mbps CAN FD gateway, connecting a microcontroller or industrial controller to a CAN bus, and developing automotive diagnostic or distributed control equipment. The manufacturer datasheet states that the TJA1442 offers pin compatibility and is designed to avoid changes to hardware and software design for supported existing applications.
The primary design check is the controller-to-transceiver logic interface, CANH and CANL bus connection, supply decoupling, and Standby-state behavior. Because supported replacement applications and pin compatibility are application-specific, engineers should verify the complete NXP datasheet, including electrical limits, bus timing, input thresholds, bus-fault behavior, and external component recommendations, before releasing a new PCB.
Drop-in alternatives for TJA1442BT/0Z — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with TJA1442BT/0Z (same form factor and footprint) — differing in Package, Operating Temperature, Product Type.
TJA1442AT/3
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TJA1042T/3/1J
✅ Drop-InContact for price
View Datasheet →TJA1044GT/3
✅ Drop-In📋 Reference alternative (not in catalog)
TJA1051T/3/1
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$0.4102 / Unit
View Datasheet →TJA1052T/3
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TJA1442BT/0Z Specifications
| Product Type | High-speed CAN transceiver |
| Supported Protocol | CAN FD and Classical CAN |
| Maximum CAN FD Data Rate | 5 Mbps |
| Supply Voltage Range | 4.5 V to 5.5 V |
| Operating Temperature Range | -40 °C to +150 °C |
| Automotive Qualification | AEC-Q100 qualified |
| Package | 8-pin SO package |
| Mounting Type | Surface mount |
| Logic Input/Output | TXD and RXD controller interface |
| Bus Interface | CANH and CANL two-wire differential bus |
| Low-Power Feature | Standby mode |
| RoHS Status | Compliant |
| Lead-Free Status | Lead-free |
| Shipping Format | Tape and reel |
| Lifecycle Status | Active |
| Transceiver Configuration | Half-bus CAN transceiver |
| Reference Design Compatibility | Designed for retrofitting supported TJA1042 and TJA1044GT applications |
TJA1442BT/0Z Pin Configuration
| Pin 1 | TXD — Transmit data input from the CAN controller |
| Pin 2 | GND — Ground connection |
| Pin 3 | RXD — Receive data output to the CAN controller |
| Pin 4 | STB — Standby-mode control input |
| Pin 5 | VIO — Logic input/output supply connection |
| Pin 6 | CANL — CAN low bus output and input |
| Pin 7 | CANH — CAN high bus output and input |
| Pin 8 | VCC — Main transceiver supply connection |
Typical Applications
TJA1442BT/0Z is suitable for 6 applications: 5 Mbps CAN FD Network Node, Automotive Body Control Module, Industrial CAN Gateway, CAN-to-USB Diagnostics Adapter, Classical CAN Hardware Retrofit, Industrial Sensor Network.
5 Mbps CAN FD Network Node
The TJA1442BT/0Z fits a CAN FD node requiring a 5 Mbps physical-layer interface in an 8-pin SO package. It connects a CAN controller’s TXD and RXD signals to the CANH and CANL bus conductors while operating from a 4.5 V to 5.5 V supply. Its listed 5 Mbps capability is useful when the design benefits from faster Classical CAN or CAN FD payload transfer. The AEC-Q100 qualification and -40 °C to +150 °C range support demanding equipment, although actual throughput still depends on controller timing, termination, wiring, and electromagnetic compatibility.
Recommended
Automotive Body Control Module
The TJA1442BT/0Z is appropriate for an automotive body or comfort-control module that communicates over a CAN network. AEC-Q100 qualification supports its use in automotive electronics, while the -40 °C to +150 °C specification covers elevated ambient conditions commonly encountered in vehicles. The 4.5 V to 5.5 V operating range supports regulated 5 V systems, and the 8-pin SO package simplifies board-space allocation. Designers should verify the exact vehicle transient requirements, bus fault handling, standby-state policy, and protection-network values against the official NXP documentation.
Recommended
Industrial CAN Gateway
The TJA1442BT/0Z can serve as the CAN-side physical interface in an industrial gateway that bridges a CAN FD network to another communication standard. Its 5 Mbps rating can improve gateway throughput compared with a 1 Mbps Classical CAN-only alternative, while the broad -40 °C to +150 °C range supports factory equipment. The compact 8-pin SO package preserves PCB area, but the gateway designer must implement the correct CAN termination, common-mode protection, ground strategy, and controller timing. Standby mode can also be coordinated with the gateway’s broader low-power management policy.
Recommended
CAN-to-USB Diagnostics Adapter
The TJA1442BT/0Z is suitable for the CAN side of a USB-to-CAN diagnostic adapter that needs a 5 Mbps physical-layer interface. It provides the bridge between a CAN controller and the two-wire CAN bus while leaving protocol processing and USB connectivity to dedicated companion devices. The SO-8 package supports compact adapter hardware, and the Standby feature can help manage power consumption when the adapter is inactive. Production designs should validate bus termination, ESD protection requirements, grounding, and behavior during bus faults rather than relying on package compatibility alone.
Recommended
Classical CAN Hardware Retrofit
The TJA1442BT/0Z can be evaluated for retrofitting an existing NXP TJA1042 or TJA1044GT node because the manufacturer datasheet identifies those devices as supported replacement examples and emphasizes avoidance of hardware and software changes. The retrofit can retain the existing CANH, CANL, TXD, and RXD connections when the package and logic behavior match. This is most appropriate where the original design does not depend on features unavailable in the Classical CAN predecessor. A no-change claim still requires board-level review of pin functions, standby behavior, timing, and component tolerances.
Recommended
Industrial Sensor Network
The TJA1442BT/0Z can connect a controller to a distributed industrial sensor network using CAN as the physical bus. The 5 Mbps interface provides useful headroom for a bus carrying frequent measurements and diagnostic data, while the -40 °C to +150 °C range supports installation near heat-producing equipment. The 8-pin SO footprint reduces routing complexity compared with larger packages. For reliable deployment, engineers should evaluate cable length, bus topology, termination at both physical ends, common-mode voltage, ESD protection, and the standby behavior required during sensor-node power reduction.
Recommended
Recommended Products Summary
Engineering reference data for TJA1442BT/0Z — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TJA1442AT/3 | TJA1042T/3 | TJA1044GT/3 | TJA1051T/3 | TJA1052T/3 |
|---|---|---|---|---|---|---|
| Package | 8-pin SO | 8-pin SO - same | 8-pin SO - same | 8-pin SO - same | 8-pin SO - same | 8-pin SO - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Maximum Data Rate | 5 Mbps | 5 Mbps | 1 Mbps | 1 Mbps | 1 Mbps | 1 Mbps |
| Protocol Support | CAN FD and Classical CAN | CAN FD and Classical CAN | Classical CAN | Classical CAN | Classical CAN | Classical CAN |
Key Differentiators
- Higher listed bus data rate than Classical CAN alternatives (vs TJA1042T/3)
- CAN FD capability retained in the same SO-8 footprint (vs TJA1044GT/3)
- Automotive qualification and extended temperature capability (vs TJA1442AT/3)
- Hardware-compatible upgrade path for identified NXP designs (vs TJA1051T/3)
Design Notes
Route CANH and CANL as a closely coupled differential pair and keep the transceiver connection to the bus short and direct. Place the device-side supply and logic decoupling capacitors close to their associated pins, with the ground return referenced to the transceiver ground. The CAN bus itself should follow the topology, termination, and stub-length guidance in the NXP datasheet; changing only the transceiver package while retaining unsuitable board geometry can still compromise 5 Mbps operation.
Keep the TJA1442BT/0Z VCC supply between 4.5 V and 5.5 V and validate power-up, power-down, and standby transitions against the controller’s TXD state. Verify the VIO operating range independently because the logic interface supply requirement can constrain how the transceiver connects to a host operating at a different voltage. Add local high-frequency bypassing and controlled return paths to prevent bus-edge noise or controller resets when the transceiver changes operating state.
Do not assume that every 8-pin CAN transceiver is a drop-in replacement. The TJA1442 is identified by NXP as a replacement for supported TJA1042 and TJA1044GT designs, but the target’s listed 5 Mbps CAN FD capability differs from the 1 Mbps Classical CAN ratings of those predecessors. Before substituting, compare pin names, standby polarity, controller logic levels, VIO handling, bus-fault behavior, timing, and qualification rather than matching the package outline alone.
Apply the CAN bus protection network recommended by the manufacturer and place it where it can divert bus-energy events without disrupting the differential pair geometry. Review common-mode voltage, ESD ratings, surge exposure, and ground-bounce margins against the installation environment. In industrial or automotive equipment, filtered power and a controlled chassis or signal-ground strategy may be needed, but protection components should not add excessive capacitance or asymmetric delay to the 5 Mbps bus.
Compliance Information
The supplied product results identify the TJA1442BT/0Z as RoHS compliant, lead-free, and AEC-Q100 qualified. No verified REACH, halogen-free, or conflict-minerals declarations were supplied.
