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NXP Semiconductors TJA1080TS,112
- Part No.:
- TJA1080TS,112
- Manufacturer:
- NXP Semiconductors
- Category:
- Specialized
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
TJA1080TS,112.pdf
- Description:
- IC INTERFACE SPECIALIZED 20SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,959
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Product details
Overview
TJA1080TS,112 from NXP Semiconductors is a FlexRay transceiver compliant with FlexRay Physical Layer Specification V2.1 Rev. A, operating at data rates up to 10 Mbit/s. It serves as the physical layer interface between a FlexRay protocol controller and the differential bus in automotive time-triggered networks, supporting both node and active star topologies with differential TX/RX capability, ±60 V bus pin tolerance, and AEC-Q100 qualification.
For engineers reviewing the TJA1080TS,112 datasheet, TJA1080TS,112 pinout, TJA1080TS,112 application, or TJA1080TS,112 equivalent, this device is critical for high-integrity automotive communication systems requiring deterministic latency, bus guardian support, wake-up symbol detection, and dual-voltage system compatibility (14 V and 42 V).
Technical Context
The TJA1080TS,112 implements a dual-mode architecture-configurable as either a node transceiver (TRXD0/TRXD1 grounded at power-on) or an active star branch (TRXD0/TRXD1 tied to VBUF). Its internal state machine autonomously manages mode transitions in star configuration, including Star-transmit, Star-receive, Star-idle, and Star-sleep, with activity/idle detection on BP/BM, TXEN, and TRXD lines.
It integrates dedicated diagnostics: overtemperature detection, bus short-circuit monitoring, VBAT/VCC/VIO undervoltage flags, wake-source identification, and fail-safe behavior under supply faults. The transceiver supports auto I/O level adaptation to VIO (2.2–5.25 V), bus guardian interface, and low-power management via two inhibit switches (INH1/INH2) and configurable sleep entry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | Up to 10 Mbit/s - enables deterministic, time-triggered communication for safety-critical automotive ECUs. |
| Supply voltage (VBAT) | 6.5 V to 60 V - supports 14 V and 42 V automotive battery systems with cold-start operation. |
| Supply voltage (VIO) | 2.2 V to 5.25 V - auto-adapts logic interface levels to host controller voltage without external level shifters. |
| Differential output voltage (VOH/VOL) | +600 to +1200 mV / −1200 to −600 mV - meets FlexRay V2.1 differential signaling thresholds for robust noise immunity. |
| Bus pin ESD protection | ±8 kV HBM - protects against human-body model electrostatic discharge in assembly and service environments. |
| Operating temperature | −40 °C to +150 °C virtual junction - qualified per AEC-Q100 Grade 0 for under-hood deployment. |
| Sleep mode current | ≤50 µA - minimizes quiescent drain on vehicle battery during extended parking periods. |
Pinout & Package
Package: SSOP20 (SOT339-1), plastic shrink small outline package, 20 leads, 5.3 mm body width, surface-mount compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| BP / BM | Differential bus interface | Active drive/receive pair for FlexRay physical bus; ±60 V tolerant, short-circuit proof to battery/ground. |
| TXD | Transmit data input | Asynchronous serial input from protocol controller; internal pull-down ensures defined state when unconnected. |
| RXD | Receive data output | Differential bus data decoded to single-ended logic; output enabled only when RXEN is LOW (bus activity detected). |
| TXEN | Transmitter enable | Active-low control: HIGH disables transmitter; used for local transmit gating and star-configuration activity detection. |
| BGE | Bus guardian enable | Active-low input that overrides TXEN; when LOW, forces transmitter disable regardless of TXEN state. |
| STBN | Standby input | Active-low entry to low-power modes; internal pull-down allows default standby on open connection. |
| WAKE | Local wake-up input | Edge-triggered (positive edge if pull-up, negative if pull-down); initiates wake-up sequence with source identification. |
| ERRN | Error flag output | Open-drain, active-low signal indicating overtemperature, bus short, or supply undervoltage; supports serial diagnostic readout. |
| TRXD0 / TRXD1 | Inner star data I/O | Configurable bidirectional interface for star topology inter-branch communication; latched at power-on for mode selection. |
| VIO | I/O supply reference | Defines logic voltage domain for TXD, RXD, TXEN, BGE, STBN, WAKE, and ERRN pins; enables mixed-voltage system integration. |
Key Features
| Feature | Design Value |
|---|---|
| FlexRay V2.1 compliance | Fully implements electrical physical layer spec, including differential signaling, timing tolerances, and bus idle/activity detection. |
| Configurable topology support | Single device operates as node (linear bus) or star branch via TRXD0/TRXD1 pin strapping at power-on. |
| Integrated bus guardian interface | Dedicated BGE pin enables external or internal bus guardian logic to enforce transmission time limits and prevent bus monopolization. |
| Multi-source wake-up capability | Responds to remote wake-up symbols on BP/BM, local edge on WAKE, and STBN (if VIO present); identifies wake source for diagnostics. |
| Comprehensive fault diagnostics | Real-time reporting of overtemperature, bus short-circuit, VBAT/VCC/VIO undervoltage, and TXEN/BGE clamping via ERRN pin. |
| AEC-Q100 Grade 0 qualification | Validated for automotive use across −40 °C to +150 °C junction temperature with stress testing per automotive reliability standards. |
Applications
| Advanced Driver Assistance Systems (ADAS) | Powertrain Control Units (PCU) |
|---|---|
Use Scenario: Synchronized sensor fusion in radar-camera fusion ECU requiring sub-microsecond timing precision and fault containment. IC Role / Device Role / Timing Role: Physical layer transceiver enabling deterministic, time-triggered message exchange between radar processor, camera SoC, and central gateway. Use Value: Ensures <1 µs jitter and guaranteed slot-based arbitration - critical for real-time object tracking and path prediction algorithms. |
Use Scenario: Coordinated torque delivery across engine, transmission, and electric axle controllers in hybrid powertrains. IC Role / Device Role / Timing Role: FlexRay interface for synchronized actuator command distribution and feedback aggregation with cycle-consistent latency. Use Value: Supports 10 Mbit/s throughput and bus guardian enforcement to prevent erroneous torque commands during transient conditions. |
| Electric Vehicle Battery Management Systems (BMS) | Chassis Domain Controllers |
Use Scenario: High-voltage battery pack monitoring with cell-level voltage/temperature acquisition and thermal runaway coordination. IC Role / Device Role / Timing Role: Node transceiver connecting distributed battery monitoring units to central BMS controller via shielded/unshielded FlexRay bus. Use Value: ±60 V bus tolerance and 8 kV HBM ESD withstand enable direct connection to high-voltage domains without additional protection circuitry. |
Use Scenario: Integrated chassis controller managing brake-by-wire, steer-by-wire, and suspension damping with functional safety requirements. IC Role / Device Role / Timing Role: Active star transceiver providing redundant, low-latency communication between chassis sub-nodes and central domain controller. Use Value: Star-sleep mode reduces standby current to ≤50 µA while maintaining wake-up responsiveness - extends vehicle "ready" time after ignition-off. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar FlexRay transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MC33664 | Supports only node configuration; lacks TRXD0/TRXD1 pins and star topology capability; lower max data rate (10 Mbit/s same, but tighter timing margins). | Restricted to linear bus architectures; not suitable for active star networks or inner-star data routing. | Select MC33664 only for cost-sensitive node-only designs where star expansion is excluded. |
| TJA1081TS | Pin-compatible upgrade with enhanced EMC performance, improved common-mode rejection, and extended VIO range (1.65–5.25 V). | Direct drop-in replacement with higher noise immunity in high-EMI engine compartments or 48 V mild-hybrid systems. | Prefer TJA1081TS for new designs targeting ISO 11898-4 compliance upgrades or future-proofing against stricter EMC requirements. |
Compared with MC33664 and TJA1081TS, the TJA1080TS,112 uniquely balances dual-topology flexibility (node/star), comprehensive diagnostics (wake-source ID, UV flags), and AEC-Q100 Grade 0 operation - making it optimal for scalable FlexRay domain controllers where architecture evolution and field diagnostics are prioritized.
Availability
TJA1080TS,112 is available at Aetrix Electronics and suitable for automotive ADAS, powertrain control, battery management, and chassis domain applications requiring stable component supply, long-term lifecycle support, and AEC-Q100-compliant sourcing.
Supply support for TJA1080TS,112 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and IoT applications, with deep expertise in automotive networking and functional safety.
The TJA1080TS,112 belongs to NXP's FlexRay transceiver product line, designed specifically for time-triggered, fault-tolerant automotive communication systems demanding deterministic latency, high EMC immunity, and seamless integration into ASAM-compliant development workflows.
FAQ
What is the maximum data rate supported by the TJA1080TS,112?
The TJA1080TS,112 supports data transfer up to 10 Mbit/s, fully compliant with FlexRay Electrical Physical Layer Specification V2.1 Rev. A. This rate enables deterministic, time-triggered communication essential for safety-critical automotive functions such as brake-by-wire and ADAS sensor fusion. The TJA1080TS,112 maintains signal integrity across this range using differential BP/BM outputs with VOH(dif) = +600 to +1200 mV and VOL(dif) = −1200 to −600 mV under 40–55 Ω bus termination.
How does the TJA1080TS,112 support both node and star network topologies?
The TJA1080TS,112 configures its topology at power-on via strapping of TRXD0 and TRXD1 pins: grounding both selects node mode (stand-alone bus interface), while connecting either to VBUF selects star mode (branch of active star). In star mode, the TJA1080TS,112 autonomously manages Star-transmit, Star-receive, and Star-idle states using internal activity detection on BP/BM, TXEN, and TRXD lines - eliminating need for external mode control logic.
What wake-up mechanisms does the TJA1080TS,112 provide?
The TJA1080TS,112 supports three independent wake-up sources: remote wake-up symbols on BP/BM bus lines, local wake-up via negative edge on WAKE pin (with internal pull-up/pull-down selectable by voltage), and positive edge on STBN if VIO is present. The device identifies the active wake source and asserts ERRN to signal the cause, enabling targeted diagnostic response in the host microcontroller - a key capability documented in Section 7.5 of the TJA1080TS,112 datasheet.
Does the TJA1080TS,112 include built-in diagnostics and fault reporting?
Yes, the TJA1080TS,112 provides integrated diagnostics including overtemperature detection, bus short-circuit monitoring, VBAT/VCC/VIO undervoltage flags, TXEN/BGE clamping detection, and wake-source identification. All are reported via the open-drain ERRN pin, which can be read serially by the host MCU. These features are confirmed in Sections 2.3 and 7.2.5 of the official TJA1080TS,112 product data sheet and support ISO 26262 ASIL-B diagnostic coverage requirements.
What is the purpose of the INH1 and INH2 pins on the TJA1080TS,112?
INH1 and INH2 are inhibit outputs used to control external voltage regulators in the system. In Normal, Receive-only, and Standby modes, INH1 is driven HIGH; INH2 follows INH1 in Normal/Receive-only, but floats in Standby unless the wake flag is set. This dual inhibit scheme enables coordinated power sequencing across multiple supply domains - for example, disabling auxiliary rails during Sleep mode to reduce total system quiescent current below 50 µA, as specified for the TJA1080TS,112.
TJA1080TS,112 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 20-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Applications:
- -
- Interface:
- FlexRay
- Voltage - Supply:
- 4.75V ~ 5.25V
- Supplier Device Package:
- 20-SSOP
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
TJA1080TS,112 FAQ
1.How can I place an order for TJA1080TS,112 through Aetrix?
Please submit a Request for Quotation (RFQ) for TJA1080TS,112 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TJA1080TS,112 reliable?
The price and inventory of TJA1080TS,112 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TJA1080TS,112 is usually 5 days.
3.What payment methods are accepted for TJA1080TS,112?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TJA1080TS,112 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TJA1080TS,112?
TJA1080TS,112 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TJA1080TS,112 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TJA1080TS,112?
For technical support, including TJA1080TS,112 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TJA1080TS,112 requirements.
6.How does Aetrix verify that TJA1080TS,112 is sourced from the original manufacturer or authorized distributors?
All TJA1080TS,112 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TJA1080TS,112 meets industry standards.
7.What is the process for return or replacement of TJA1080TS,112?
All TJA1080TS,112 units undergo pre-shipment inspection (PSI). If there is an issue with TJA1080TS,112, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TJA1080TS,112 part is unused and in its original packaging.
Return procedure for TJA1080TS,112:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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