TJA1044GT/1Z - High-Speed CAN Transceiver | NXP Semiconductors
料号： TJA1044GT/1Z ✓ 量产中TJA1044GT/1Z 概述
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.
直接替换替代料： TJA1044GT/1Z ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： TJA1044GT/1Z （相同外形与封装尺寸） ——差异在于 Package, Protocol, Mounting Type, Number of Drivers/Receivers, Product Type.
TJA1044GT/3Z
✅ 直接替换📋 参考替代料（不在目录中）
TJA1044GT
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →TJA1044GTJ
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →TJA1044BT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TJA1044T/1Z
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →TJA1044GT/1Z 规格参数
| 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 |
| 封装 | 8-SO, 8 pins |
| 安装类型 | 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 引脚配置指南
TJA1044GT/1Z（8-so, 8 pins 封装）的引脚配置。 引脚编号、功能和连接图在制造商数据手册中定义。请参阅该手册以了解确切的封装尺寸和焊接指南。
暂无详细引脚数据： TJA1044GT/1Z.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TJA1044GT/1Z 适用于 6 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： TJA1044GT/1Z ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | 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 |
关键差异点
- Automotive-focused standby and wake-up feature set （对比 TJA1044GT/3Z)
- Optimized for 12 V automotive networks （对比 TJA1044GT)
- Compact eight-pin integration （对比 TJA1044BT)
设计说明
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.
合规信息
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.
