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Texas Instruments TCAN332DR
- Part No.:
- TCAN332DR
- Manufacturer:
- Texas Instruments
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TCAN332DR.pdf
- Description:
- IC TRANSCEIVER 1/1 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:5,463
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Product details
Overview
TCAN332DR from Texas Instruments is a 3.3V high-speed CAN transceiver compliant with ISO 11898-2, supporting up to 1 Mbps data rate in normal mode only, operating across –40°C to 125°C, with ±12V common-mode range and total loop delay < 135 ns. It interfaces directly with 3.3V CAN controllers in industrial automation and building control networks.
For engineers reviewing the TCAN332DR datasheet, TCAN332DR pinout, TCAN332DR application, or TCAN332DR equivalent, key selection criteria include its SOIC-8 package, absence of standby/silent/shutdown modes, integrated driver/receiver dominant time-out protection, and compatibility with 5V CAN transceivers on shared buses.
Technical Context
The TCAN332DR implements a differential bus interface with matched dominant/recessive common-mode behavior for robust EMC performance. Its receiver features 500–900 mV input threshold with 120 mV hysteresis and supports –12V to +12V common-mode voltage in normal and silent modes.
Driver output symmetry is specified within ±400 mV (CANHREC + CANLREC – CANHDOM – CANLDOM), and it includes undervoltage lockout (2.2–2.6 V rising, 1.65–2.5 V falling) and thermal shutdown at 175°C with 5°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data Rate | Up to 1 Mbps - supports standard CAN (not CAN FD) in highly loaded networks without timing symmetry constraints. |
| Supply Voltage | 3.0–3.6 V - enables direct interfacing with 3.3V microcontrollers without level-shifting. |
| Common-Mode Range | ±12 V - ensures reliable operation in electrically noisy industrial environments with ground offsets. |
| Total Loop Delay | < 135 ns - meets timing budgets for real-time CAN communication at 1 Mbps with margin. |
| ESD Protection | ±25 kV HBM, ±12 kV IEC 61000-4-2 contact - eliminates need for external TVS diodes on bus lines. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive and industrial embedded applications. |
| Bus Fault Protection | ±14 V - withstands transient overvoltage events on CANH/CANL without latch-up or damage. |
Pinout & Package
TCAN332DR is housed in an 8-pin SOIC package (4.9 mm × 6 mm), with pin 1 marked by a beveled corner or dot. Pin functions are fixed per device variant: pins 5 and 8 are NC (no connect), confirming no standby, silent, or fault functionality.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 TXD | Input | CMOS-level transmit data input; LOW = dominant, HIGH = recessive; internal pull-up ensures fail-safe recessive default. |
| 2 GND | Ground | Primary reference for all logic and bus circuitry; must be low-impedance connection to system ground plane. |
| 3 VCC | Supply | 3.3V power input; requires local 100 nF ceramic decoupling capacitor placed ≤5 mm from pin. |
| 4 RXD | Output | CMOS-level receive data output; tri-state during power-down; drives MCU input with 0.2–0.4 V LOW and ≥2.64 V HIGH. |
| 5 NC | No Connect | Not internally bonded; must remain unconnected on PCB to avoid parasitic coupling or EMI. |
| 6 CANL | I/O | Differential low-side bus terminal; designed for twisted-pair termination; supports ±14 V fault tolerance. |
| 7 CANH | I/O | Differential high-side bus terminal; matches CANL for common-mode rejection; same fault rating as CANL. |
| 8 NC | No Connect | Not internally bonded; floating per TI device comparison table; no pull-up/down or internal function. |
Key Features
| Feature | Design Value |
|---|---|
| Single 3.3V supply operation | Eliminates need for dual-rail supplies or level shifters when interfacing with modern 3.3V CAN controllers. |
| Driver and receiver dominant time-out (DTO) | Prevents bus lockup: TXD DTO (1.2–3.8 ms) disables driver after prolonged dominant state; RXD DTO (1.6–5 ms) forces RXD high if bus stays dominant too long. |
| Optimized unpowered behavior | Bus pins (CANH/CANL) and logic pins (TXD/RXD) enter high-impedance state when VCC = 0 V, avoiding loading of live bus or MCU. |
| Integrated 12 kV IEC 61000-4-2 ESD protection | Meets industrial surge immunity requirements without external protection components, reducing BOM count and board area. |
| Matched dominant/recessive common-mode behavior | Enables excellent EMC performance (CISPR 25 Class 5) in automotive and industrial noise environments. |
Applications
| Industrial CAN Node | Building Automation Controller |
|---|---|
Use Scenario: Connecting PLC I/O modules via CAN bus in factory-floor machinery with high EMI and ground potential differences. IC Role / Device Role / Timing Role: Physical layer transceiver translating MCU UART/CAN controller signals to differential bus levels with ±12V common-mode tolerance. Use Value: Enables reliable 1 Mbps communication across 100+ meter cable runs with >60 dB common-mode rejection, eliminating intermittent errors in motor-drive environments. | Use Scenario: HVAC zone controllers communicating temperature, valve position, and fan status over shared CAN backbone in commercial buildings. IC Role / Device Role / Timing Role: Isolates MCU logic from bus transients while providing glitch-free power-up/down sequencing across distributed nodes. Use Value: Maintains network integrity during brownouts via undervoltage lockout and prevents bus contention during firmware updates using DTO protection. |
| Telecom Base Station Monitor | Automotive Diagnostic Interface |
Use Scenario: Monitoring power supply status, cooling fan RPM, and alarm conditions in 4G/5G base station cabinets using CANopen protocol. IC Role / Device Role / Timing Role: Robust physical interface between ARM-based management MCU and CAN bus, surviving repeated 14V bus faults. Use Value: Eliminates field failures caused by lightning-induced surges on outdoor cabinet cabling due to ±14V bus pin fault protection. | Use Scenario: Aftermarket OBD-II diagnostic tool connecting to vehicle CAN bus for ECU readout and flash programming support. IC Role / Device Role / Timing Role: Level-translating transceiver enabling 3.3V host processor to safely access 5V automotive CAN networks. Use Value: Full interoperability with legacy 5V transceivers on same bus, verified per ISO 11898-2, avoids protocol-level incompatibility during multi-vendor diagnostics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CAN transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TCAN332D | Same SOIC-8 package, identical pinout and electrical specs; differs only in tape-and-reel packaging (DR = cut tape, D = reel). | No functional difference; both support 1 Mbps, NC on pins 5/8, same thermal and ESD ratings. | Select TCAN332D for automated SMT assembly requiring full reels; TCAN332DR suits prototyping or low-volume production with manual placement. |
| SN65HVD232DR | Also 3.3V, 1 Mbps, SOIC-8, but lacks driver/receiver DTO, has lower ESD (±16 kV HBM), and narrower common-mode (±7 V). | Suitable for benign environments only; cannot replace TCAN332DR in industrial settings requiring ±12 V CMR or bus-lockup prevention. | Choose SN65HVD232DR only where cost is critical and system-level fault protection is implemented externally. |
Compared with TCAN332D, TCAN332DR offers identical performance in cut-tape form for flexible procurement; versus SN65HVD232DR, it delivers superior bus robustness via integrated DTO, ±12 V common-mode, and ±25 kV HBM ESD-critical for unattended industrial deployments.
Availability
TCAN332DR is available at Aetrix Electronics and suitable for industrial automation, building control systems, and telecom base station monitoring requiring stable component supply and long-term manufacturability.
Supply support for TCAN332DR 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 deep expertise in automotive and industrial communications ICs.
The TCAN33x product line was designed specifically for robust, low-power CAN physical layer interfacing in harsh environments-emphasizing fault tolerance, ESD resilience, and seamless integration with 3.3V microcontrollers.
FAQ
Does TCAN332DR support CAN FD?
No, TCAN332DR supports standard CAN up to 1 Mbps only. CAN FD capability is exclusive to TCAN332G variants (e.g., TCAN332GDR), which include enhanced timing symmetry parameters for 2–5 Mbps operation and are explicitly designated with the "G" suffix in the part number.
What are the functions of pins 5 and 8 on TCAN332DR?
Pins 5 and 8 on TCAN332DR are No Connect (NC) terminals-unbonded and internally unconnected. They must remain unpopulated and unconnected on the PCB layout to prevent noise coupling or unintended current paths, as confirmed in TI's Device Options table and Pin Functions table.
Can TCAN332DR coexist on the same CAN bus with 5V transceivers?
Yes, TCAN332DR is fully compatible with 5V CAN transceivers on the same bus. Its differential output voltages (VO(D) = 2.45–3.3 V on CANH, 0.5–1.25 V on CANL) and input thresholds meet ISO 11898-2 requirements for interoperability, enabling mixed-voltage network designs without level shifters.
What protection features does TCAN332DR include beyond ESD?
TCAN332DR includes driver dominant time-out (1.2–3.8 ms), receiver dominant time-out (1.6–5 ms), undervoltage lockout (2.2–2.6 V rising threshold), thermal shutdown (175°C), and ±14 V bus pin fault tolerance-providing comprehensive defense against software faults, power anomalies, overheating, and wiring errors.
Is TCAN332DR qualified for automotive applications?
TCAN332DR is not AEC-Q100 qualified. While it operates from –40°C to +125°C and meets ISO 11898-2, it lacks automotive-specific qualification testing (e.g., stress testing, failure analysis). For automotive use, TI recommends AEC-Q100–qualified alternatives such as TCAN1042 or TCAN1051.
TCAN332DR 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
TCAN332DR FAQ
1.How can I place an order for TCAN332DR through Aetrix?
Please submit a Request for Quotation (RFQ) for TCAN332DR 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 TCAN332DR reliable?
The price and inventory of TCAN332DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TCAN332DR is usually 5 days.
3.What payment methods are accepted for TCAN332DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCAN332DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCAN332DR?
TCAN332DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCAN332DR 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 TCAN332DR?
For technical support, including TCAN332DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCAN332DR requirements.
6.How does Aetrix verify that TCAN332DR is sourced from the original manufacturer or authorized distributors?
All TCAN332DR 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 TCAN332DR meets industry standards.
7.What is the process for return or replacement of TCAN332DR?
All TCAN332DR units undergo pre-shipment inspection (PSI). If there is an issue with TCAN332DR, 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 TCAN332DR part is unused and in its original packaging.
Return procedure for TCAN332DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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