TJA1044GT/1Z - High-Speed CAN Transceiver | NXP Semiconductors
MPN: TJA1044GT/1Z ✓ ActiveTJA1044GT/1Z Overview
A CAN transceiver is an interface IC within the broader physical-layer network-device hierarchy. A CAN controller processes messages and protocols, while the transceiver connects that controller to the physical bus through differential transmit and receive paths. NXP describes the TJA1044 as part of the Mantis family of high-speed CAN transceivers, designed for 12 V automotive applications and optimized around electromagnetic compatibility performance.
The supplied manufacturer information identifies several functional attributes. Selective wake-up allows the device to react to recognized CAN activity instead of requiring continuous full-power operation. Standby mode provides a controlled low-power state, while autonomous standby operation allows the transceiver to manage its own power-related behavior. The 8-SO package supports compact surface-mount implementation. The manufacturer also identifies differential transmit and receive capability, enabling communication with a CAN controller over the automotive two-wire network.
Operationally, the TJA1044 belongs to a high-speed CAN physical-layer product family rather than a protocol controller or bus arbitration device. It does not independently generate CAN frames; instead, it provides the electrical interface between logic-level controller signals and the differential bus. This separation allows the same host microcontroller or dedicated CAN controller to handle frame construction, arbitration, error management, and higher-level diagnostics while the transceiver manages bus-level electrical signaling.
Typical uses include automotive body controllers, body-domain modules, comfort systems, safety-related electronic modules, gateway interfaces, and distributed vehicle networks. It is also relevant to industrial CAN equipment that needs a compact high-speed bus interface and a transceiver designed specifically for 12 V automotive electrical environments. In a complete design, the TJA1044 is paired with a host processor or CAN controller, bus termination, transceiver supply decoupling, and a CANH/CANL physical network.
A key design consideration is the distinction between a same-footprint alternative and a truly validated replacement. Ordering-code variants and devices from other manufacturers can share an SOIC-8 footprint while differing in VIO support, supply range, standby behavior, temperature grade, EMC performance, or wake-up logic. Engineers should compare the complete NXP datasheet, PCB footprint, exposed-pad requirements, transceiver mode inputs, bus fault behavior, and firmware assumptions before substituting a component.
This page consolidates manufacturer positioning, distributor records, verified source links, strict drop-in candidate information, and application-oriented design guidance. It also identifies where electrical ratings, pricing, lifecycle status, and package details require confirmation rather than presenting unsupported assumptions as product facts.
Drop-in alternatives for TJA1044GT/1Z — 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 TJA1044GT/1Z (same form factor and footprint) — differing in Package, Protocol, Mounting Type, Number of Drivers/Receivers, Product Type.
TJA1044GT/3Z
✅ Drop-In📋 Reference alternative (not in catalog)
TJA1044GT
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →TJA1044GTJ
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →TJA1044BT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
TJA1044T/1Z
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →TJA1044GT/1Z Specifications
| Product Type | High-speed CAN transceiver |
| Protocol Support | Controller Area Network (CAN) |
| Bus Architecture | Differential two-wire CAN bus |
| Transmit and Receive Capability | Differential transmit and differential receive |
| Power Management Mode | Standby mode with autonomous standby operation |
| Wake-Up Function | Selective wake-up |
| Target Supply Environment | 12 V automotive applications |
| Target Application Segment | Automotive body and safety applications |
| Package | 8-SO, 8 pins |
| Mounting Type | Surface mount |
| Product Family | Mantis high-speed CAN transceivers |
| Controller Interface | TXD, RXD, and STB signal interfaces |
| ElectroMagnetic Compatibility | Optimized EMC performance for 12 V automotive applications |
TJA1044GT/1Z 8-so, 8 pins Pin Configuration Guide
Pin configuration for TJA1044GT/1Z (8-so, 8 pins 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 TJA1044GT/1Z.
Refer to the datasheet for full pin configuration.
Typical Applications
TJA1044GT/1Z is suitable for 6 applications: Automotive Body Control Module, Vehicle Safety Electronic Module, Automotive Gateway Interface, Body Comfort and HMI Module, Industrial CAN Equipment, CAN Bus Diagnostic Interface.
Automotive Body Control Module
The TJA1044GT/1Z fits an automotive body control module because NXP positions the TJA1044 for 12 V automotive body applications. Its high-speed differential CAN interface connects a host CAN controller to a physical two-wire network, while selective wake-up supports power-conscious distributed vehicle systems. The 8-SO package also conserves board area compared with larger transceivers. Designers should verify the exact VIO arrangement, supply limits, temperature grade, bus-fault behavior, and EMC performance in the complete datasheet before releasing a safety- or body-critical design.
Recommended
Vehicle Safety Electronic Module
The TJA1044GT/1Z can serve as the network interface in a vehicle safety electronic module when the design requires a high-speed CAN physical layer and low-power network management. NXP identifies selective wake-up, standby mode, and autonomous standby operation as family features, while the manufacturer materials describe EMC optimization for 12 V automotive environments. Because safety suitability depends on the exact qualification grade and device fault behavior, engineers must confirm the order code, operating temperature, protection features, and application-specific safety requirements rather than infer them from the family description.
Recommended
Automotive Gateway Interface
The TJA1044GT/1Z is appropriate for an automotive gateway that connects a host processor or dedicated CAN controller to a two-wire differential CAN network. The Mantis-family device provides the electrical transmit and receive interface while leaving frame processing and arbitration to the host controller. Its 8-SO package supports compact board layouts, and standby-related functions can help manage network participation. For gateway implementation, validate bus fault handling, recessive-state behavior, wake-up logic, bus termination, and coexistence requirements using the complete manufacturer documentation.
Recommended
Body Comfort and HMI Module
The TJA1044GT/1Z can connect body-comfort and human-machine-interface modules to a vehicle CAN network while conserving board space through its 8-SO package. High-speed differential signaling supports communication with a host CAN controller, and selective wake-up offers a path to reducing unnecessary network activity when the module is idle. The implementation should be reviewed for VIO compatibility with the selected microcontroller, standby-state current budget, bus polarity behavior, electromagnetic compatibility, and wake-up conditions before the module is released for production.
Recommended
Industrial CAN Equipment
The TJA1044GT/1Z may also be considered for industrial CAN equipment that uses a compact 8-pin high-speed CAN transceiver and can operate from a suitable 12 V supply environment. It provides the differential physical layer between a CAN controller and a two-wire bus, while standby and wake-up features can assist system-level power management. Industrial use nevertheless requires verification of the complete supply range, temperature limits, EMC performance, fault tolerance, and availability because the manufacturer positions the device primarily for automotive applications.
Recommended
CAN Bus Diagnostic Interface
The TJA1044GT/1Z can provide the physical bus layer for a diagnostic interface connected to a host CAN controller. Its high-speed differential transmit and receive capability supports the CAN network, and the compact 8-SO package simplifies integration into space-constrained diagnostic modules. Standby behavior can reduce system activity between diagnostic sessions, while selective wake-up can react to qualifying bus activity. Designers should confirm fault reporting, dominant and recessive behavior, loopback or diagnostic-support features, and supply compatibility in the exact order code before implementation.
Recommended
Recommended Products Summary
Engineering reference data for TJA1044GT/1Z — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TJA1044GT/3Z | TJA1044GT | TJA1044GTJ | TJA1044BT |
|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | SOIC-8 (8-SO) | SOIC-8 (8-SO) - same | SOIC-8 (8-SO) - same | SOIC-8 (8-SO) - same | SOIC-8 (8-SO) - same |
| Product Type | High-speed CAN transceiver | High-speed CAN transceiver | High-speed CAN transceiver | High-speed CAN transceiver | High-speed CAN transceiver |
| Bus Architecture | Differential two-wire CAN bus | Differential two-wire CAN bus | Differential two-wire CAN bus | Differential two-wire CAN bus | Differential two-wire CAN bus |
Key Differentiators
- Automotive-focused standby and wake-up feature set (vs TJA1044GT/3Z)
- Optimized for 12 V automotive networks (vs TJA1044GT)
- Compact eight-pin integration (vs TJA1044BT)
Design Notes
Route CANH and CANL as a closely coupled differential pair over the shortest practical path from the transceiver to the bus connector. The provided search results confirm an 8-SO device and a differential two-wire CAN bus, but they do not provide the complete recommended PCB layout. Follow the exact land pattern, thermal-pad requirements, bus-clearance rules, and component-placement guidance in the full NXP TJA1044 documentation before release.
TJA1044 power states are part of the design, not merely firmware settings. Confirm how STB, VIO, VCC, selective wake-up, and autonomous standby interact for the exact TJA1044GT/1Z order code. The supplied excerpts do not provide supply limits, standby current, or wake-up timing, so no capacitor or power-budget value should be inferred without consulting the complete electrical-characteristics and application-information sections.
Do not substitute a TJA1044 order code solely because it fits an 8-SO footprint. NXP documentation explicitly identifies VIO-related differences among TJA1044 variants. Before replacing TJA1044GT/1Z with TJA1044GT/3Z or another family member, verify pin bonding, logic-level compatibility, STB polarity, wake-up behavior, supply range, temperature grade, bus-fault handling, qualification, and lifecycle status.
NXP describes the TJA1044 as optimized for 12 V automotive applications with excellent electromagnetic compatibility performance. Preserve that intent by following the manufacturer's decoupling, grounding, bus-layout, and connector recommendations and by validating radiated and conducted emissions in the final module. EMC performance is system-dependent, so a compliant transceiver does not by itself guarantee that the finished assembly passes regulatory or OEM tests.
Compliance Information
The supplied manufacturer and distributor excerpts identify an automotive-oriented CAN transceiver but do not provide explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. These statuses must be confirmed from the current NXP product documentation or material-declaration records.
