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Texas Instruments TCAN334DR
- Part No.:
- TCAN334DR
- Manufacturer:
- Texas Instruments
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TCAN334DR.pdf
- Description:
- IC TRANSCEIVER 1/1 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,919
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Product details
Overview
TCAN334DR from Texas Instruments is a 3.3V high-speed CAN transceiver supporting ISO 11898-2, operating up to 1 Mbps with shutdown and low-power standby modes featuring wake detection. It delivers ±12 V common-mode range, ±14 V bus fault protection, <135 ns total loop delay, and operates from –40°C to 125°C in SOIC-8 package - used in industrial automation and building control systems requiring robust CAN communication.
For engineers reviewing the TCAN334DR datasheet, TCAN334DR pinout, TCAN334DR application, or TCAN334DR equivalent, this page provides verified technical context, mode-specific timing behavior, ESD protection specs (±25 kV HBM, ±12 kV IEC 61000-4-2), DTO safeguards, and drop-in compatibility with 5V CAN transceivers on shared buses.
Technical Context
The TCAN334DR implements dual operational modes: Normal mode for full CAN bus arbitration and data exchange, and Standby mode with wake detection enabled via STB pin - allowing ultra-low quiescent current (15–20 µA) while retaining bus activity monitoring. Its driver and receiver dominant time-out (DTO) logic prevents bus lockup during TXD or RXD faults, with tTXD_DTO = 1.2–3.8 ms and tRXD_DTO = 1.6–5 ms.
It features integrated undervoltage protection (UVVCC threshold 2.2–2.6 V rising, 1.65–2.5 V falling), thermal shutdown at 175°C, and matched dominant/recessive common-mode behavior for superior EMC. The device maintains high-impedance bus pins when unpowered, enabling glitch-free power sequencing in mixed-voltage systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | Up to 1 Mbps - supports standard CAN (not CAN FD); sufficient for CANopen, DeviceNet, and ISO 11783 applications. |
| Supply Voltage | 3.3 V nominal (3.0–3.6 V range) - enables direct interface with 3.3V CAN controllers without level-shifting. |
| Common-Mode Range | ±12 V - ensures reliable operation in electrically noisy industrial environments with ground offsets. |
| Bus Fault Protection | ±14 V on CANH/CANL - protects against transients and short-to-battery/ground events in automotive and factory settings. |
| Total Loop Delay | <135 ns - meets timing budgets for high-speed CAN networks with tight propagation constraints. |
| Standby Current | 15–20 µA at TA < 85°C - enables battery-powered nodes with extended sleep duration and fast wake response. |
| ESD Protection | HBM ±25 kV on bus pins; IEC 61000-4-2 contact discharge ±12 kV - eliminates need for external TVS diodes in many system-level designs. |
Pinout & Package
TCAN334DR is housed in an 8-pin SOIC package (4.9 mm × 6 mm), compatible with industry-standard footprints and reflow profiles. Pin functions are validated per TI SLLSEQ7F datasheet Rev. May 2025.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - TXD | Input | CAN controller transmit data input; LOW = dominant, HIGH = recessive; internal pull-up. |
| 2 - GND | Ground | Primary reference for all analog and digital circuitry; must be low-impedance connection. |
| 3 - VCC | Supply | 3.3 V power input; UV detection triggers protected mode below 2.2 V (rising) or 1.65 V (falling). |
| 4 - RXD | Output | CAN bus receive data output; tri-state capable; drives HIGH for recessive, LOW for dominant. |
| 5 - SHDN | Input | Active-HIGH shutdown control; places transceiver in ultra-low-power state (≤2.5 µA). |
| 6 - CANL | I/O | Low-side CAN bus line; differential pair with CANH; fault-tolerant ±14 V rating. |
| 7 - CANH | I/O | High-side CAN bus line; differential pair with CANL; matches CANL for symmetry and EMC. |
| 8 - STB | Input | Active-HIGH standby mode enable with wake detection; reduces supply current to ~20 µA while monitoring bus activity. |
Key Features
| Feature | Design Value |
|---|---|
| Shutdown + Standby with Wake | SHDN and STB pins provide two distinct low-power states: shutdown (≤2.5 µA) and standby (15–20 µA with wake detection). |
| Dominant Time-Out (DTO) | Driver DTO (1.2–3.8 ms) and receiver DTO (1.6–5 ms) prevent permanent bus lockup due to local TXD/RXD faults. |
| Unpowered Bus Isolation | When VCC = 0 V, CANH/CANL and logic pins enter high-impedance state - no loading or interference on live bus. |
| Integrated ESD Protection | ±25 kV HBM and ±12 kV IEC 61000-4-2 on bus pins - eliminates external protection components in most industrial deployments. |
| Wide Temperature Range | –40°C to +125°C ambient operation - qualified for under-hood, motor drive, and factory-floor environments. |
Applications
| Industrial PLC Communication | Building Automation Sensors |
|---|---|
|
Use Scenario: Connecting distributed I/O modules to central PLC over long CAN bus runs in factory environments with high EMI. IC Role / Device Role / Timing Role: Physical layer transceiver translating 3.3V controller signals to differential CANH/CANL; handles bus arbitration and error framing. Use Value: ±12 V common-mode range and ±14 V fault tolerance ensure stable communication despite ground shifts and surges in industrial enclosures. |
Use Scenario: Interfacing temperature, occupancy, and HVAC sensors to BAS controllers in commercial buildings. IC Role / Device Role / Timing Role: Low-power CAN node transceiver enabling battery-operated sensor nodes with wake-on-bus-activity capability. Use Value: Standby current of 15–20 µA extends battery life; STB pin allows immediate wake response to network commands without polling. |
| Telecom Base Station Control | Mobile Equipment Monitoring (ISO 11783) |
|
Use Scenario: Remote status reporting and firmware update coordination between base station RF units and management controllers. IC Role / Device Role / Timing Role: Robust physical interface ensuring reliable command/response exchange in electrically dense telecom racks. Use Value: Excellent EMC performance and 1 Mbps timing margin support deterministic control loops even under RF interference. |
Use Scenario: Implementing J1939-compatible diagnostics and telemetry in agricultural and construction machinery. IC Role / Device Role / Timing Role: CAN transceiver compliant with ISO 11783 physical layer requirements for mobile hydraulics and engine control networks. Use Value: Direct 3.3V MCU interface and wide –40°C to +125°C operation suit harsh outdoor vehicle environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CAN transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TCAN334D | Same functionality and pinout; D suffix denotes SOIC-8 package with Pb-free matte tin lead finish (DR uses NiPdAu). | No functional difference; identical electrical specs and thermal performance; RoHS-compliant variant. | Select TCAN334D if matte tin termination is required for solderability or legacy process compatibility. |
| SN65HVD234DR | 1 Mbps CAN transceiver with 3.3V supply, but lacks standby/wake mode and has lower ESD rating (±16 kV HBM vs ±25 kV). | Suitable for fixed-power nodes where ultra-low sleep current is unnecessary; less robust in high-ESD environments. | Choose SN65HVD234DR only when cost sensitivity outweighs need for wake-capable standby and enhanced ESD protection. |
Compared with TCAN334DR, TCAN334D offers identical functionality with alternate surface finish, while SN65HVD234DR trades standby capability and ESD resilience for lower cost - making TCAN334DR optimal for battery-aware or mission-critical industrial nodes.
Availability
TCAN334DR is available at Aetrix Electronics and suitable for industrial automation, building control systems, and telecom base station management requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for TCAN334DR 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity solutions with decades of automotive and industrial qualification expertise.
The TCAN33x product line was designed specifically for robust, low-power CAN communication in harsh environments - emphasizing ESD resilience, wide temperature operation, and intelligent fault handling for industrial and mobile equipment.
FAQ
What is the maximum data rate supported by the TCAN334DR?
The TCAN334DR supports up to 1 Mbps, compliant with ISO 11898-2 for standard CAN (Classical CAN). It is not rated for CAN FD operation - that capability is exclusive to TCAN334G variants. This makes TCAN334DR ideal for CANopen, DeviceNet, and ISO 11783 implementations where 1 Mbps suffices and cost/power optimization is prioritized.
Does the TCAN334DR support wake-from-standby functionality?
Yes, the TCAN334DR supports wake-from-standby via its STB pin. When STB is driven HIGH, the device enters standby mode with ~20 µA supply current while continuously monitoring the CAN bus for dominant pulses. A valid wake event (e.g., bus activity meeting filter criteria) automatically transitions it back to normal mode within ≤10 µs, enabling responsive low-power node design.
How does the TCAN334DR handle undervoltage conditions?
The TCAN334DR incorporates undervoltage protection (UVP) with rising threshold of 2.2–2.6 V and falling threshold of 1.65–2.5 V. When VCC drops below the falling threshold, the device enters protected mode - disabling driver output and placing RXD in high-impedance state. Recovery requires VCC to exceed the rising threshold, followed by tUV_RE-ENABLE (1000 µs) before resuming normal operation.
What package type is used for the TCAN334DR?
The TCAN334DR uses an 8-pin SOIC package (package code D), measuring 4.9 mm × 6 mm. It is pin-compatible with other TCAN33x devices in SOIC-8 and supports standard PCB layout practices, including thermal relief pads and 0.050" pitch routing. The "DR" suffix denotes tape-and-reel packaging with NiPdAu lead finish.
Can the TCAN334DR coexist on the same CAN bus with 5V transceivers?
Yes, the TCAN334DR is fully compatible with 5V CAN transceivers on the same bus. Its differential output voltage (VOD) ranges from 1.6 V to 3.0 V in dominant state and maintains proper common-mode margins (±12 V), ensuring interoperability across mixed-voltage CAN networks - a key advantage in legacy system upgrades or hybrid controller architectures.
TCAN334DR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Transceiver
- Protocol:
- CANbus
- Number of Drivers/Receivers:
- 1/1
- Duplex:
- -
- Receiver Hysteresis:
- 120 mV
- Data Rate:
- 1Mbps
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
TCAN334DR FAQ
1.How can I place an order for TCAN334DR through Aetrix?
Please submit a Request for Quotation (RFQ) for TCAN334DR 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 TCAN334DR reliable?
The price and inventory of TCAN334DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TCAN334DR is usually 5 days.
3.What payment methods are accepted for TCAN334DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCAN334DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCAN334DR?
TCAN334DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCAN334DR 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 TCAN334DR?
For technical support, including TCAN334DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCAN334DR requirements.
6.How does Aetrix verify that TCAN334DR is sourced from the original manufacturer or authorized distributors?
All TCAN334DR 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 TCAN334DR meets industry standards.
7.What is the process for return or replacement of TCAN334DR?
All TCAN334DR units undergo pre-shipment inspection (PSI). If there is an issue with TCAN334DR, 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 TCAN334DR part is unused and in its original packaging.
Return procedure for TCAN334DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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