My Inquiry
My Account
Texas Instruments TCAN332DCNR
- Part No.:
- TCAN332DCNR
- Manufacturer:
- Texas Instruments
- Category:
- Drivers, Receivers, Transceivers
- Package:
- SOT-23-8
- Datasheet:
-
TCAN332DCNR.pdf
- Description:
- IC TRANSCEIVER 1/1 SOT238
- Quantity:
- Payment:
- Shipping:
Inventory:4,263
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TCAN332DCNR from Texas Instruments is a 3.3V high-speed CAN transceiver compliant with ISO 11898-2, supporting up to 1 Mbps data rate in standard CAN networks. It operates across –40°C to 125°C, features ±12V common-mode range and ±14V bus fault protection, and functions exclusively in Normal mode with no standby, silent, or shutdown capability. It is used in industrial automation and building control systems requiring robust, low-power CAN physical layer interfacing.
For engineers reviewing the TCAN332DCNR datasheet, TCAN332DCNR pinout, TCAN332DCNR application, or TCAN332DCNR equivalent, key selection considerations include its fixed Normal-mode operation, SOT-23-8 package footprint, 135 ns max loop delay, integrated TXD/RXD dominant time-out protection, and compatibility with 3.3V CAN controllers without level-shifting.
Technical Context
The TCAN332DCNR implements a differential driver/receiver pair with matched dominant and recessive common-mode behavior for superior EMC performance. Its internal logic enforces TXD and RXD dominant time-out (1.2–3.8 ms and 1.6–5 ms respectively) to prevent bus lockup during controller faults.
No mode-control pins are functional: Pin 5 (SHDN) and Pin 8 (S) are No Connect (NC), disabling all power-saving modes. Bus terminals (CANH/CANL) provide ±25 kV HBM and ±12 kV IEC 61000-4-2 ESD protection, eliminating need for external TVS diodes in many system-level designs.
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 NMEA2000 protocols. |
| Supply Voltage | 3.0 V to 3.6 V - enables direct interface with 3.3V microcontrollers without voltage translation. |
| Total Loop Delay | ≤135 ns - ensures timing compliance in high-speed CAN networks with tight propagation budgets. |
| Common-Mode Range | ±12 V - maintains reliable communication in electrically noisy industrial environments with ground offsets. |
| Bus Fault Protection | ±14 V - withstands transient overvoltages on CANH/CANL without latch-up or damage. |
| ESD Protection | ±25 kV HBM on CANH/CANL - meets automotive and industrial immunity requirements without external protection components. |
| Operating Temperature | –40°C to 125°C - qualified for under-hood, factory-floor, and outdoor embedded applications. |
Pinout & Package
TCAN332DCNR is housed in an 8-pin SOT-23 package (2.9 mm × 1.6 mm), optimized for space-constrained PCB layouts. Pin functions are validated per TI SLLSEQ7F datasheet Figures 4-2 and Table 4-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - TXD | Input | CMOS-level transmit data input; LOW = dominant, HIGH = recessive; internal pull-up eliminates need for external resistor. |
| 2 - GND | Ground | Primary reference for supply and signal integrity; must be low-impedance connection to system ground plane. |
| 3 - VCC | Supply | 3.3V power input; requires local 100 nF ceramic decoupling capacitor placed within 2 mm of pin. |
| 4 - RXD | Output | CMOS-level receive data output; tri-state capable; drives HIGH for recessive, LOW for dominant bus state. |
| 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 CAN bus terminal; connects directly to twisted-pair CAN-L line with 120 Ω termination at network ends. |
| 7 - CANH | I/O | Differential high-side CAN bus terminal; connects directly to twisted-pair CAN-H line; symmetric layout critical for EMC. |
| 8 - NC | No Connect | Not internally bonded; must remain unconnected; floating NC pins reduce noise susceptibility vs. grounded stubs. |
Key Features
| Feature | Design Value |
|---|---|
| Normal-mode-only operation | Eliminates complexity of mode control logic and associated PCB routing; ideal for cost-sensitive, always-on CAN nodes. |
| Integrated TXD/RXD dominant time-out | Prevents permanent bus lockup due to MCU firmware hang; auto-releases bus after 1.2–5 ms without external watchdog intervention. |
| ±25 kV HBM ESD on bus pins | Enables direct board-level integration into harsh environments (e.g., factory floors) without discrete ESD protection devices. |
| Unpowered bus pin high-impedance | Allows safe hot-plug or power sequencing where VCC may be absent while CAN bus remains live; zero loading on active network. |
| Matched dominant/recessive common-mode | Reduces radiated emissions by >6 dB compared to asymmetric transceivers; simplifies EMC pre-compliance testing. |
Applications
| Industrial Automation Node | Building Climate Control Hub |
|---|---|
Use Scenario: Distributed I/O module communicating with PLC over CAN bus in a manufacturing cell with variable ground potentials and motor drive noise. IC Role / Device Role / Timing Role: Physical layer transceiver converting 3.3V UART signals from ARM Cortex-M4 MCU to differential CANH/CANL bus signals with <135 ns loop delay. Use Value: ±12V common-mode range rejects ground-loop noise; ±14V bus fault tolerance prevents failure during 24V DC power rail transients. | Use Scenario: Central HVAC controller aggregating sensor data (temperature, CO₂, humidity) from multiple CAN-connected field devices in commercial buildings. IC Role / Device Role / Timing Role: Robust CAN interface enabling deterministic 1 Mbps messaging between controller and remote nodes over 100+ meter cable runs. Use Value: Integrated 12 kV IEC 61000-4-2 contact ESD protection eliminates external TVS diodes, reducing BOM count and board area by 12 mm². |
| Telecom Base Station Monitor | Off-Road Vehicle Control Unit |
Use Scenario: Remote monitoring unit reporting status (fan speed, temperature, power supply health) from telecom base station cabinets via CAN backhaul. IC Role / Device Role / Timing Role: Isolated CAN physical layer node interfacing with 3.3V telemetry MCU; operates continuously at 85°C ambient. Use Value: –40°C to 125°C operating range ensures reliability in uncooled outdoor enclosures; low 3.5 mA recessive supply current extends backup battery life. | Use Scenario: Engine control module in agricultural machinery using CAN to coordinate hydraulic valves, PTO, and GPS-guided steering systems. IC Role / Device Role / Timing Role: Ruggedized CAN transceiver surviving vibration, wide temperature swings, and load-dump transients on 24V vehicle electrical system. Use Value: ±14V bus fault protection withstands ISO 7637-2 pulse 5a (load dump); unpowered high-impedance bus pins prevent interference during ignition cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CAN transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN65HVD230DR | 5V supply only; no TXD/RXD DTO; 125°C max junction temp; SOIC-8 only. | Requires level-shifter for 3.3V MCUs; lacks bus-lock prevention; less suitable for battery-powered or thermally constrained designs. | Select when legacy 5V systems dominate and DTO is not required; verify thermal margin in enclosed enclosures. |
| TCAN337DR | Includes open-drain FAULT output pin; same 3.3V supply and 1 Mbps rating; SOIC-8 package. | Enables real-time fault diagnostics (bus short, overtemp, UVLO) without additional GPIO polling; larger footprint than SOT-23. | Choose when system-level fault reporting is mandatory and PCB space allows SOIC-8; not drop-in compatible due to pinout and package. |
Compared with SN65HVD230DR, TCAN332DCNR offers native 3.3V operation and bus-lock protection but lacks fault signaling; versus TCAN337DR, it trades diagnostic capability for smaller size and lower cost-ideal for cost-optimized, always-on CAN nodes where fault visibility is handled at MCU level.
Availability
TCAN332DCNR is available at Aetrix Electronics and suitable for industrial automation, building climate control, and telecom base station monitoring requiring stable component supply, long-term lifecycle support, and AEC-Q200-aligned reliability.
Supply support for TCAN332DCNR 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 company specializing in analog, embedded processing, and connectivity solutions for industrial, automotive, and communications markets.
The TCAN33x product line delivers robust, low-power CAN physical layer transceivers designed specifically for noise-immune industrial networks and space-constrained embedded systems requiring ISO 11898-2 compliance.
FAQ
What is the maximum data rate supported by the TCAN332DCNR?
The TCAN332DCNR supports up to 1 Mbps data rate in standard CAN networks. It is not rated for CAN FD operation-only the TCAN332G variants (e.g., TCAN332GDR) support 5 Mbps. This 1 Mbps limit ensures timing compliance with ISO 11898-2 for networks up to 40 meters in length with proper termination.
Does the TCAN332DCNR support low-power modes like standby or shutdown?
No, the TCAN332DCNR operates exclusively in Normal mode. Pins 5 (SHDN) and 8 (S) are No Connect (NC), so standby, silent, and shutdown modes are disabled. Power consumption remains at ~3.5 mA in recessive state and ~55 mA in dominant state-intentionally simplified for always-on applications.
What package type is used for the TCAN332DCNR, and what are its dimensions?
The TCAN332DCNR uses the SOT-23-8 package, measuring 2.9 mm × 1.6 mm (nominal, including pins). This compact footprint is ideal for dense PCB layouts in space-constrained modules such as sensor nodes and edge controllers, and is distinct from the SOIC-8 option used by other TCAN33x variants.
How does the TCAN332DCNR protect against bus faults and ESD events?
The TCAN332DCNR provides ±14 V fault protection on CANH/CANL pins and ±25 kV HBM ESD protection on those same pins. It also includes IEC 61000-4-2 ±12 kV contact discharge protection-enabling direct integration into harsh environments without external TVS diodes or RC filters in most industrial use cases.
Is the TCAN332DCNR pin-compatible with other TCAN33x devices like TCAN334 or TCAN337?
No, the TCAN332DCNR is not pin-compatible with TCAN334 or TCAN337. While all share the SOT-23-8 outline, Pin 5 is NC in TCAN332DCNR but functions as SHDN in TCAN334 or FAULT in TCAN337, and Pin 8 is NC here but serves as STB or S elsewhere. PCB layout must be specific to TCAN332DCNR's NC pin configuration.
TCAN332DCNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Transceiver
- Protocol:
- CANbus
- Number of Drivers/Receivers:
- 1/1
- Duplex:
- -
- Receiver Hysteresis:
- 120 mV
- Data Rate:
- -
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-8
TCAN332DCNR FAQ
1.How can I place an order for TCAN332DCNR through Aetrix?
Please submit a Request for Quotation (RFQ) for TCAN332DCNR 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 TCAN332DCNR reliable?
The price and inventory of TCAN332DCNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TCAN332DCNR is usually 5 days.
3.What payment methods are accepted for TCAN332DCNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TCAN332DCNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TCAN332DCNR?
TCAN332DCNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TCAN332DCNR 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 TCAN332DCNR?
For technical support, including TCAN332DCNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TCAN332DCNR requirements.
6.How does Aetrix verify that TCAN332DCNR is sourced from the original manufacturer or authorized distributors?
All TCAN332DCNR 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 TCAN332DCNR meets industry standards.
7.What is the process for return or replacement of TCAN332DCNR?
All TCAN332DCNR units undergo pre-shipment inspection (PSI). If there is an issue with TCAN332DCNR, 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 TCAN332DCNR part is unused and in its original packaging.
Return procedure for TCAN332DCNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TCAN332DCNR Tags
-
ATA6561-GAQW-N
Microchip Technology
-
ATA6561-GBQW-N
Microchip Technology
-
AM26LS32ACDR
Texas Instruments
-
SP485CN-L/TR
MaxLinear, Inc.
-
SP485EN-L/TR
MaxLinear, Inc.
-
SP485EEN-L/TR
MaxLinear, Inc.
-
SP485ECN-L/TR
MaxLinear, Inc.
-
THVD1400DR
Texas Instruments
-
AM26C31IDR
Texas Instruments
-
TLIN1021ADRQ1
Texas Instruments
-
MAX232IDR
Texas Instruments
-
AM26C32IDR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
