TJA1448BTK/0Z - Dual CAN FD Transceiver | NXP
料号： TJA1448BTK/0Z ✗ 停产TJA1448BTK/0Z 概述
A CAN transceiver is an interface IC that connects a CAN protocol controller to a physical two-wire CAN bus. It belongs to the CAN interface transceiver class, within the broader interface IC and semiconductor hierarchy. The controller generates and interprets digital CAN frames, while the transceiver converts those signals into bus-compatible electrical levels and receives bus signals back. The TJA1448 supports both Classical CAN and CAN FD networks, making it suitable for systems that need a compact dual-channel physical layer.
The TJA1448 family combines two high-speed CAN channels in one package. Its standby mode provides a way to place the transceiver into a reduced operating state when communication is temporarily unnecessary. Its dual-channel architecture can reduce component count in controllers, gateways, industrial nodes, or automotive modules that require two independent CAN FD links. The NXP manufacturer overview identifies the TJA1448 as part of a family designed for data rates up to 5 Mbit/s.
The TJA1448 is also positioned as a hardware-compatible replacement for earlier dual high-speed Classical CAN and CAN FD transceivers. The manufacturer datasheet specifically identifies the NXP TJA1059 as a device that can be replaced by the TJA1448. This makes the part useful for retrofitting existing dual-channel CAN designs where board space, standby behavior, and CAN FD capability are important selection criteria.
Typical uses include industrial automation controllers, vehicle body and comfort modules, distributed sensor nodes, CAN FD gateways, diagnostic equipment, and embedded communication systems. Two CAN channels can serve separate buses or maintain redundant communication paths, subject to the electrical requirements of each network. The compact 14-HVSON package is particularly useful when board area is constrained and high routing density is required.
Layout is the primary implementation consideration for a high-speed CAN interface. Keep CAN bus traces short, provide a continuous return path beneath the bus, place the bus-side termination network at the appropriate network endpoints, and decouple the transceiver supply close to the device. The CANH and CANL connections should also be routed as a differential pair with consistent geometry and minimal stubs.
This page combines the manufacturer product information, documented CAN FD capability, package identity, standby feature, replacement context, practical layout guidance, and verified sourcing links. It is designed to help engineers identify whether the TJA1448BTK/0Z fits a dual CAN FD interface and how it compares with a documented pin-compatible replacement.
直接替换替代料： TJA1448BTK/0Z ——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： TJA1448BTK/0Z （相同外形与封装尺寸） ——差异在于 Mounting Type, Number of Channels, Package.
TJA1448BTK/0Z 规格参数
| Product Type | Dual high-speed CAN and CAN FD transceiver |
| Number of Channels | 2 channels |
| Transmit and Receive Channels | 2/2 |
| CAN Protocol Support | Classical CAN and CAN FD |
| Maximum CAN FD Data Rate | 5 Mbit/s |
| Supply Voltage Range | 4.5 V to 5.5 V |
| Operating Mode | Standby mode |
| 封装 | 14-HVSON, 3 mm x 4.5 mm |
| 安装类型 | Surface mount |
| Transceiver Classification | Half CANbus transceiver |
| Bus Interface | Two-wire CAN bus |
| Protocol Controller Interface | CAN or CAN FD protocol controller |
TJA1448BTK/0Z 14-hvson, 3 mm x 4.5 mm 引脚配置指南
TJA1448BTK/0Z（14-hvson, 3 mm x 4.5 mm 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： TJA1448BTK/0Z.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TJA1448BTK/0Z 适用于 6 应用s: Industrial CAN FD Controllers, Automotive Body and Comfort Modules, CAN FD Gateways and Protocol Bridges, Distributed Sensor and Actuator Nodes, Vehicle Diagnostics and Test Equipment, Redundant Communication Equipment.
Industrial CAN FD Controllers
The TJA1448BTK/0Z fits industrial controllers that need two CAN FD physical interfaces in a compact 3 mm by 4.5 mm package. Its dual 2/2 channel arrangement can connect a controller to two separate CAN FD networks while supporting communication at up to 5 Mbit/s. The 4.5 V to 5.5 V supply range aligns with conventional 5 V embedded systems, while standby mode supports power-state management. Designers should verify protocol-controller timing and isolation requirements before finalizing the bus architecture.
推荐
Automotive Body and Comfort Modules
The dual-channel TJA1448BTK/0Z is appropriate for body and comfort control modules that communicate over separate CAN FD domains. Supporting rates up to 5 Mbit/s can accommodate gateway, diagnostics, and distributed control traffic, while the 14-HVSON footprint conserves board area in compact modules. Standby mode is useful during inactive operating periods. Automotive qualification, transient requirements, and exact ordering-code suitability must be confirmed with NXP before production release.
推荐
CAN FD Gateways and Protocol Bridges
A gateway requiring independent CAN FD links can use the TJA1448BTK/0Z to place two transceiver channels close to its protocol controllers. The device supports Classical CAN and CAN FD communication at up to 5 Mbit/s, allowing one link to retain legacy CAN compatibility while another handles higher-rate traffic. Its standby function can support deterministic power management. Placement should minimize bus-trace length and keep termination away from transceiver and controller signal paths.
推荐
Distributed Sensor and Actuator Nodes
The TJA1448BTK/0Z can provide two high-speed CAN connections for distributed sensing, monitoring, or actuation modules. Its compact 14-HVSON package is valuable where several interface channels must fit into a small controller board, and the 4.5 V to 5.5 V operating range supports common embedded supply rails. CAN FD capability up to 5 Mbit/s can improve update bandwidth when the network topology and protocol stack support it. Bus loading and termination must be calculated for the complete network.
推荐
Vehicle Diagnostics and Test Equipment
The TJA1448BTK/0Z is suitable for diagnostic interfaces and test equipment that need to connect to two CAN FD networks while supporting lower-rate Classical CAN communication. Its 2/2 channel architecture reduces the physical interface count, and operation up to 5 Mbit/s supports modern vehicle data traffic. The 3 mm by 4.5 mm package simplifies compact test hardware. Engineers must implement the correct bus termination, protection, and ground-return arrangement for each connected network.
推荐
Redundant Communication Equipment
The two independent channels of the TJA1448BTK/0Z can support equipment that communicates over separate CAN networks, including monitoring systems that isolate traffic between subsystems. Supporting both Classical CAN and CAN FD at up to 5 Mbit/s provides flexibility when linking legacy nodes to upgraded networks. The compact 14-HVSON package limits board area, and standby mode can assist in power sequencing. Redundancy behavior must be validated at the system and protocol levels rather than inferred from transceiver duality alone.
推荐
推荐产品汇总
工程参考数据： TJA1448BTK/0Z ——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 | TJA1059 |
|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors |
| Package | 14-HVSON (3x4.5) | 14-HVSON (3x4.5) |
| Transceiver Channels | 2/2 dual channel | 2/2 dual channel |
| CAN Protocol Support | Classical CAN and CAN FD | High-speed Classical CAN |
| Documented Replacement Relationship | Replaces the TJA1059 with pin compatibility | Replaced by the TJA1448 |
关键差异点
- CAN FD performance beyond a Classical CAN-oriented interface （对比 TJA1059)
- Documented hardware replacement path （对比 TJA1059)
- Dual-channel integration in a compact package （对比 TJA1059)
设计说明
Place the 14-HVSON transceiver close to the CANH and CANL connectors and the associated protocol controller. Route CANH and CANL as a differential pair with consistent spacing and geometry, avoid test pads or unnecessary vias in the pair, and keep the traces short. Provide a continuous ground reference beneath the bus routes. The small package improves placement flexibility, but it does not remove the need for a controlled CAN bus layout.
Connect the transceiver supply through a short, low-impedance path and place the required supply decoupling capacitor beside the device's supply and ground pins. The TJA1448BTK/0Z operates from 4.5 V to 5.5 V, so the upstream rail must remain within that interval under load and transient conditions. Keep high-current return current out of the transceiver ground path to reduce potential differences across the board.
Do not place CAN termination directly across every transceiver. CAN bus termination belongs at the physical endpoints of the bus, with the resistance selected according to the network configuration and transceiver guidance. Review standby-control polarity and timing in the manufacturer datasheet before connecting the mode-control circuit. Also verify that the complete PCB footprint, including the exposed or thermal pad, matches the selected NXP package drawing.
Use the transceiver's CANH and CANL routing as the primary emissions-control boundary. Keep the pair away from switching nodes, clock sources, and unrelated high-current paths, and maintain a quiet ground reference below it. Common-mode choke or split-termination approaches can be evaluated when a completed design shows unacceptable emissions, but they should be validated with the final bus topology rather than added unconditionally.
合规信息
The manufacturer product information does not establish the requested compliance and qualification status for this ordering code. Obtain the current NXP environmental and quality documentation before making a compliance declaration.