TJA1044VTZ - 5Mbps CAN Transceiver | NXP | Automotive
MPN: TJA1044VTZ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.7097 | $1.71 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
TJA1044VTZ Overview
A CAN transceiver is the physical-layer interface between a Controller Area Network protocol controller and the differential two-wire CAN bus. Within the hierarchy of CAN interface ICs, transceivers convert controller logic levels into bus voltages and convert received bus levels back into digital RXD signals. The TJA1044 belongs to NXP's Mantis high-speed CAN family and is intended primarily for automotive electronic systems.
Key verified characteristics include 5 Mbps operation, normal and standby operating modes, 300 mV receiver hysteresis, 4.75 V to 5.25 V supply operation, and an automotive AEC-Q100 classification. The single-transmitter, single-receiver arrangement supports half-duplex CAN communication through one shared bus interface rather than providing separate independent send and receive channels.
The TJA1044 family interface uses differential CANH and CANL bus connections to reject common-mode noise while communicating over a noisy vehicle network. Its 300 mV receiver hysteresis helps determine valid bus signaling, while standby mode provides a control path for reducing activity when the node is not participating in communication. Exact loopback, propagation-delay, bus-fault, and electrical-characteristic limits are not available in the supplied snippets and must be confirmed in the manufacturer datasheet.
Typical uses include automotive body-control modules, powertrain controllers, gateway electronics, comfort systems, and other ECUs connected to high-speed CAN networks. A controller such as a CAN-capable microcontroller connects through TXD and RXD, while TJA1044VTZ handles the physical bus. System designers must verify bus topology, termination, transceiver timing, fault behavior, standby polarity, and thermal performance against the complete datasheet.
For PCB implementation, use the manufacturer reference layout and route CANH and CANL as a tightly coupled differential pair away from switching nodes and high-current paths. Place protection and common-mode-choke components where their impedance and capacitance remain compatible with the target CAN bit rate and network topology.
This product record consolidates verified manufacturer and distributor facts, source links, practical design guidance, and clearly marked missing electrical details. It distinguishes documented TJA1044VTZ characteristics from parameters requiring review of the full NXP datasheet before release to production.
Drop-in alternatives for TJA1044VTZ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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Request AlternativesTJA1044VTZ Specifications
| Product Type | High-speed CAN transceiver with standby mode |
| Protocol | Controller Area Network (CAN) |
| Transmitter and Receiver Count | 1 transmitter / 1 receiver |
| Duplex Mode | Half duplex |
| Maximum Data Rate | 5 Mbps |
| Operating Modes | Normal and standby |
| Supply Voltage Range | 4.75 V to 5.25 V |
| Receiver Hysteresis | 300 mV |
| Junction Temperature Range | -40°C to 150°C |
| Package | 8-pin SOIC |
| Package Family | SOIC surface-mount family |
| Mounting Type | Surface mount |
| Automotive Qualification | AEC-Q100 |
| Product Status | Active |
TJA1044VTZ soic surface-mount family Pin Configuration Guide
Pin configuration for TJA1044VTZ (soic surface-mount family 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 TJA1044VTZ.
Refer to the datasheet for full pin configuration.
Typical Applications
TJA1044VTZ is suitable for 6 applications: Automotive Body Control Module, Vehicle Gateway Controller, Powertrain Communication Module, Comfort and Convenience ECU, Automotive Diagnostic Gateway, Industrial CAN Interface.
Automotive Body Control Module
The TJA1044VTZ fits an automotive body-control module that connects door, lighting, climate, locking, or seat functions over a high-speed CAN network. Its verified 5 Mbps capability supports demanding vehicle networks, while the 4.75 V to 5.25 V supply range fits a regulated 5 V transceiver rail. The 1/1 half-duplex arrangement links one CAN controller to the shared differential bus. The -40°C to 150°C junction range and AEC-Q100 classification support automotive-oriented design, subject to module-level EMC and fault testing.
Recommended
Vehicle Gateway Controller
In a vehicle gateway, the TJA1044VTZ can provide the physical layer for one high-speed CAN branch while another interface or microcontroller handles routing and diagnostics. Its 5 Mbps maximum data rate is relevant for communication-intensive powertrain and chassis networks, and the standby function can help manage node activity during selected operating states. The differential CANH and CANL interface supports robust two-wire communication, but exact termination, split termination, fault behavior, and timing must follow the complete NXP documentation and the vehicle network design.
Recommended
Powertrain Communication Module
The TJA1044VTZ is applicable to powertrain-related modules that exchange control and diagnostic data on a high-speed CAN network. Its verified 5 Mbps capability and -40°C to 150°C junction-temperature specification provide a suitable starting point for automotive environments, while AEC-Q100 classification supports automotive qualification planning. The 5 V supply requirement must be reconciled with the module's power architecture, and designers should verify transient immunity, bus fault response, thermal performance, and network timing under worst-case operating conditions.
Recommended
Comfort and Convenience ECU
A comfort or convenience ECU can use the TJA1044VTZ to connect seat, climate, window, lighting, or access functions to a vehicle CAN network. The half-duplex 1/1 interface is aligned with a controller that arbitrates transmission on a shared bus, and standby mode offers an additional node-state control beyond basic transmit and receive. Designers must account for wake-up behavior, bus inactivity, dominant and recessive states, termination, ESD protection, and diagnostic behavior; these details require review beyond the supplied distributor summaries.
Recommended
Automotive Diagnostic Gateway
TJA1044VTZ can support an automotive diagnostic gateway that connects a vehicle CAN segment to higher-level vehicle electronics. Its high-speed differential interface is suitable for controller-to-bus communication, and standby mode may be coordinated with ignition or module-state management. A production design still needs verified diagnostic timing, bus fault handling, sleep and wake behavior, ESD protection, and system-level EMC performance. The 5 Mbps specification describes transceiver capability, not a guarantee that every network topology or cable harness will operate at that rate.
Recommended
Industrial CAN Interface
The TJA1044VTZ may be evaluated for non-automotive industrial CAN interfaces that operate from 5 V and tolerate its automotive-oriented temperature grade. The verified 5 Mbps capability is useful for higher-rate control networks, while standby mode can support controlled node participation. Industrial deployment still requires separate validation for EMC, surge and ESD levels, cable length, bus topology, grounding, environmental contaminants, and functional-safety assumptions. The presence of AEC-Q100 data does not replace industrial product certification.
Recommended
Recommended Products Summary
Engineering reference data for TJA1044VTZ — comparison, design guidance, and compliance information.
Selection Guide
Key Differentiators
- Verified high-speed CAN capability (vs Unverified generic SOIC-8 CAN transceivers)
- Standby-mode integration (vs Transceivers without a verified standby control function)
- Automotive environmental positioning (vs Commercial-temperature interface candidates)
Design Notes
Route CANH and CANL as a short, tightly coupled differential pair over a continuous ground reference. Keep the transceiver close to the bus connector and protection components, minimize stubs, and avoid routing beneath grounds that can split the return path. Place input protection so surge-current loops do not pass through sensitive transceiver or logic ground areas.
Keep switching converters, inductors, high-current relays, crystal oscillators, and high-speed clocks spatially separated from the CAN pair. If filtering is required, validate common-mode and differential-mode capacitance against the target data rate and harness; excessive loading can prevent reliable communication even when the transceiver itself is rated for 5 Mbps.
Do not treat a matching SOIC-8 package as proof of drop-in compatibility. Before substitution, verify TXD and RXD logic levels, standby polarity and behavior, supply limits, timing, bus pins, failure modes, thermal rating, automotive qualification, and exposed-pad requirements against the complete TJA1044 documentation.
Compliance Information
AEC-Q100 is explicitly present in the verified product description. RoHS, REACH, lead-free, halogen-free, and conflict-minerals declarations are not supplied and remain unknown.