TJA1051T/1U - High-Speed CAN Transceiver | NXP | Automotive
MPN: TJA1051T/1U ✓ פעילTJA1051T/1U סקירה
A CAN transceiver, also called a CAN physical-layer interface, converts logic-level TXD and RXD signals into the differential CANH and CANL bus signals. It belongs to the hierarchy CAN transceiver > CAN physical-layer interface > network interface IC > interface IC > semiconductor. This physical-layer device complements a CAN controller such as those integrated into automotive microcontrollers; it does not replace the protocol controller or its message-handling firmware.
The TJA1051T family includes differentiated order-code options for specific design constraints. The NXP datasheet states that TJA1051T/3 and TJA1051TK/3 support direct interfacing with microcontrollers operating from supply voltages down to 3 V. It also states that TJA1051T/E can be switched into a very low-current Off mode. These options provide distinct low-voltage-interface or low-power-selection paths, while TJA1051T/1U remains the specifically requested 8-SO device.
The transceiver's two-wire CAN interface and differential signaling support communication over a shared bus designed for high-speed automotive data exchange. Exact data-rate limits, loop-delay timing, bus fault levels, supply range, transceiver state currents, and ESD ratings are not included in the supplied verified snippets, so they must be confirmed in the NXP datasheet before release of a safety- or production-critical design.
Typical uses include distributed vehicle networking, body and chassis control modules, powertrain-related control units, gateway electronics, and industrial CAN equipment connected to the same physical bus concept. In each application, the microcontroller handles protocol framing while the TJA1051 family handles the electrical interface to CANH and CANL.
PCB implementation requires an 8-SO footprint, correct termination and common-mode handling, and a CAN bus layout that minimizes radiated emissions and susceptibility. Designers should also verify the exact logic and enable behavior of TJA1051T/1U because the requested order code differs from the explicitly documented /3 and /E variants.
This page consolidates the verified NXP product information, official datasheet link, distributor identification, package details, and sourced drop-in alternatives. It also highlights which electrical ratings remain unverified so engineers can compare procurement options without mistributing catalog snippets for complete device specifications.
חלופות תחליף ישיר עבור TJA1051T/1U — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם TJA1051T/1U (אותו גורם צורה וטביעת רגל) — שונים ב Package, Duplex, Function, Operating Temperature.
TJA1051T/3/1
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←TJA1051T/E
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
TJA1051TK/3
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
TCAN1042VDRQ1
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←MCP2551-I/SN
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
TLE9251V
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
NCV7342
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
TJA1051T/1U מפרטים
| Product Type | High-speed CAN transceiver |
| Bus Interface | Differential two-wire CAN bus |
| Host Interface | TXD and RXD CAN controller interface |
| Transmit and Receive Capability | Differential |
| מארז | 8-SO, 8 pins |
| Terminal Count | 8 terminals |
| סוג הרכבה | Surface mount |
| Package Shape | Rectangular gull-wing |
| Primary Application | High-speed automotive CAN |
| סטטוס מחזור חיים | Active |
| TJA1050 Compatibility | Backwards compatible with TJA1050 |
| Low-Voltage MCU Support | TJA1051T/3 and TJA1051TK/3 support MCU supplies down to 3 V |
| Low-Current Off Mode | Available in TJA1051T/E |
תצורת פינים של TJA1051T/1U
| פין 1 | TXD — Transmitter data input from the CAN controller |
| פין 2 | GND — Ground connection |
| פין 3 | SOT — Mode-control input |
| פין 4 | VCC — Transceiver supply connection |
| פין 5 | VCC — Transceiver supply connection |
| פין 6 | CANL — CAN low bus output and input |
| פין 7 | CANH — CAN high bus output and input |
| פין 8 | RXD — Receiver data output to the CAN controller |
יישומים טיפוסיים
TJA1051T/1U מתאים עבור 6 יישוםs: Automotive Body Control Module, Vehicle Chassis Control ECU, Powertrain Communication Interface, Automotive CAN Gateway, Industrial CAN Controller Interface, Robotics and Equipment Network.
Automotive Body Control Module
The TJA1051T/1U fits an automotive body-control module that connects a microcontroller CAN controller to a shared two-wire vehicle network. NXP identifies the TJA1051 family for high-speed automotive CAN, and the device provides differential transmit and receive capability while occupying an 8-pin SO footprint. The controller handles protocol frames and diagnostic messaging, while the transceiver translates controller logic into the CANH and CANL bus signals. Its family-level TJA1050 backward compatibility may simplify migration from an earlier NXP design, although the exact /1U ordering limits and qualification must be checked. Before schematic release, verify the official pinout, supply range, timing limits, bus fault handling, and the PCB requirements for termination, common-mode protection, and CAN routing.
מומלץ
Vehicle Chassis Control ECU
The TJA1051T/1U is suitable for a chassis-control electronic control unit that exchanges real-time vehicle data with other CAN nodes through a differential two-wire bus. Its high-speed CAN transceiver role separates the physical bus layer from the MCU's protocol and firmware layers, allowing the controller to focus on message arbitration while the transceiver handles CANH and CANL signaling. The verified data confirms the 8-SO package and automotive positioning of the TJA1051 family, but it does not provide numeric data-rate, loop-delay, or fault thresholds for this order code. Engineers should use the NXP datasheet to confirm timing margins against the selected MCU and bus topology, then validate the PCB layout, termination arrangement, grounding, and transient protection under the vehicle's electromagnetic environment.
מומלץ
Powertrain Communication Interface
The TJA1051T/1U can provide the physical-layer interface for a powertrain-related control module operating on a high-speed CAN network. The device supports differential transmission and reception between the CAN controller and the vehicle's shared CANH and CANL conductors, a structure suited to coordinated engine, transmission, or hybrid-system messaging where multiple nodes communicate over the same bus. The verified NXP information supports the family's automotive role but does not state the maximum data rate, propagation delay, operating temperature, or fault-protection levels for TJA1051T/1U. Those values are essential when calculating controller timing and system safety margins. Engineers should also validate EMC layout, bus split termination, surge protection, ground strategy, and qualification requirements against the exact automotive program specification.
מומלץ
Automotive CAN Gateway
The TJA1051T/1U can serve as a CAN physical-layer endpoint in a gateway that bridges a vehicle network to another embedded communications domain. Its TXD and RXD interface allows a gateway microcontroller to exchange frames with a CAN protocol controller, while differential CANH and CANL signaling provides the physical connection to the two-wire bus. This division of responsibilities supports the TJA1051 family's stated role in high-speed automotive networks and its backward compatibility with TJA1050 designs. The supplied material does not establish whether the exact /1U order code has a standby pin, sleep behavior, loop-delay limit, or numerical ESD rating, so these must be reviewed in the official datasheet. Layout should minimize trace separation, provide a continuous return path, and keep protection devices close to the external connector.
מומלץ
Industrial CAN Controller Interface
The TJA1051T/1U can bridge a CAN-capable microcontroller to a two-wire high-speed CAN network in industrial control, monitoring, or factory automation equipment. Although NXP emphasizes automotive applications for the TJA1051 family, the same protocol controller-to-bus interface architecture applies wherever differential CAN signaling is required. The 8-SO surface-mount package supports compact controller boards, while the transceiver handles the electrical conversion independently of higher-level CAN message processing. Exact suitability for an industrial system depends on temperature, supply, timing, protection, and qualification details that are not exposed in the supplied snippets. Design verification should compare the official datasheet against the controller's I/O levels, bus baud rate, cable length, termination strategy, grounding arrangement, and required transient immunity.
מומלץ
Robotics and Equipment Network
The TJA1051T/1U is applicable to a robot controller or automated equipment node that must communicate over a shared differential CAN bus. A microcontroller connected to the TJA1051 family can exchange control, status, and diagnostic information with other nodes while the transceiver provides the physical CANH and CANL interface. The verified manufacturer description confirms a two-wire bus, differential transmit and receive capability, and an 8-SO package, making the architecture straightforward to evaluate against common embedded CAN networks. Because the available data does not specify maximum baud rate, loop delay, supply range, standby current, or ESD performance, engineers must verify those values from the NXP datasheet. PCB layout should preserve signal integrity, provide effective grounding, and implement the termination scheme required by the selected bus topology.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור TJA1051T/1U — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | TJA1051T/3 | TJA1051T/E | TJA1051TK/3 | TCAN1042 | MCP2551-I/SN |
|---|---|---|---|---|---|---|
| Package | 8-SO | 8-SO | 8-SO | 8-SO | 8-SO | 8-SO |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | Texas Instruments | Microchip Technology |
| Product Type | High-speed CAN transceiver | High-speed CAN transceiver | High-speed CAN transceiver | High-speed CAN transceiver | High-speed CAN transceiver | CAN transceiver |
מבדילים עיקריים
- Exact requested NXP order code with active TJA1051 family status (לעומתTJA1051T/3)
- Documented family-level backward compatibility (לעומתTCAN1042)
- Purpose-built high-speed automotive CAN positioning (לעומתMCP2551-I/SN)
- Distinct low-power order-code route within the same family (לעומתTJA1051T/E)
הערות תכנון
Place the TJA1051T/1U close to the CAN connector or bus-entry point, and keep the CANH and CANL traces short, coupled, and referenced to a continuous ground plane. Avoid routing these traces beneath noisy switching nodes or across split plane boundaries. External protection components should connect to short, low-inductance ground paths because long transient-current loops can reduce the effectiveness of bus protection.
Do not substitute TJA1051T/3 or TJA1051T/E without checking the exact order-code differences. The verified NXP datasheet identifies /3 and /TK/3 as supporting microcontroller supplies down to 3 V, while /E provides a very low-current Off mode. A footprint match alone does not guarantee equivalent enable, standby, supply, timing, or automotive-qualification behavior.
Terminate the CAN bus only at the two physical endpoints, using the value specified by the system and NXP application guidance. Maintain the intended CANH-to-CANL routing through branch connections, minimize stubs, and provide a low-impedance ground reference beneath the bus region. Confirm the final topology in simulation or measurement because improper split termination can impair differential signaling even when the transceiver itself operates correctly.
Use the official datasheet to determine required input capacitance, supply sequencing, operating modes, and decoupling for TJA1051T/1U. Place local high-frequency bypass capacitance at the supply pins with a short, low-inductance connection, and keep the return current close to the device. Do not infer the /3 variant's 3 V MCU-interface capability as proof that the /1U order code supports 3 V operation.
מידע על תאימות
The supplied product and distributor snippets identify an automotive-grade high-speed CAN transceiver but do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields must be confirmed from the exact NXP order-code documentation.
