TCAN337DR - 3.3V CAN FD Transceiver | Texas Instruments
MPN: TCAN337DR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.2636 | $1.26 |
| 10 | $1.2636 | $12.64 |
| 100 | $1.2636 | $126.36 |
| 500 | $1.2636 | $631.80 |
| 1,000 | $1.2636 | $1,263.60 |
TCAN337DR Overview
A CAN transceiver, also called a CAN bus interface IC, converts logic-level TXD and RXD signals into the differential CAN bus voltage and back again. In the system hierarchy, it belongs to interface ICs and specifically to the CAN physical-layer family. The TCAN337DR supports normal mode, silent mode, low-power shutdown, and standby operation, making it useful for both continuously connected and battery-powered equipment.
Key verified features include 3.3 V single-supply operation, 3 V to 3.6 V supply range, up to 1 Mbps signaling rate, CAN FD compatibility, ISO 11898-2 compatibility, and an 8-pin SOIC package. The listed operating temperature is -40°C to 125°C, making the device suitable for industrial and automotive-temperature environments when the complete system satisfies its qualification requirements.
The TCAN337 family includes a standard 8-pin SOIC option intended for drop-in compatibility, while SOT-23 options address space-constrained designs. TCAN337G variants extend the signaling rate to 5 Mbps, whereas the TCAN337DR is identified as a 1 Mbps device. This distinction is important when selecting a replacement or comparing newer CAN FD hardware.
Typical applications include industrial automation equipment, automotive and transportation electronics, robotics, building controls, and embedded CAN gateways. The 3.3 V supply operation is especially useful with low-voltage processors, while the transceiver isolates the logical interface from the physical bus wiring.
Designers should provide correct bus termination, a suitable common-mode network, and compliant transceiver decoupling. The SOIC footprint simplifies conventional leaded-board assembly, but exposed-pad-free packages may limit heat dissipation compared with an exposed-pad option. Verify the exact logic levels, bus fault limits, standby behavior, and CAN FD timing before substituting another device.
Drop-in alternatives for TCAN337DR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with TCAN337DR (same form factor and footprint) — differing in Package, Product Type, Operating Temperature Range, Pin Count, Supply Voltage (VCC).
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
TCAN337D
✅ Drop-In✓ In Stock
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View Datasheet →TCAN337GDR
✅ Drop-In📋 Reference alternative (not in catalog)
TCAN337GDCNR
✅ Drop-In📋 Reference alternative (not in catalog)
TCAN334DR
✅ Drop-In📋 Reference alternative (not in catalog)
SN75176BD
✅ Drop-In✓ In Stock
$0.1501 / Unit
View Datasheet →TJA1021T/20/C
✅ Drop-In✓ In Stock
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View Datasheet →TCAN337DR Specifications
| Product Type | 3.3 V CAN FD transceiver |
| Number of Channels | 1 channel |
| Supply Voltage Range | 3 V to 3.6 V |
| Maximum Signaling Rate | 1 Mbps |
| Protocol Support | CAN and CAN FD |
| High-Speed CAN Compatibility | ISO 11898-2 |
| Package | 8-pin SOIC (D) |
| Operating Temperature | -40°C to 125°C |
| Normal Mode | Supported |
| Silent Mode | Supported |
| Low-Power Shutdown Mode | Supported |
| Standby Mode | Supported |
| Bus Fault Voltage | -14 V to 14 V |
| Mounting Type | Surface Mount |
| Manufacturer | Texas Instruments |
TCAN337DR Pin Configuration
| Pin 1 | GND — Ground |
| Pin 2 | TXD — Transmit data input |
| Pin 3 | RXD — Receive data output |
| Pin 4 | VCC — Supply voltage |
| Pin 5 | CANL — CAN low bus output |
| Pin 6 | CANH — CAN high bus output |
| Pin 7 | STB — [DATA_NEEDED: STB pin function] |
| Pin 8 | VCC — [DATA_NEEDED: VCC pin function] |
Typical Applications
TCAN337DR is suitable for 8 applications: Industrial CAN Automation, Automotive and Transportation Electronics, Robotics and Motor Control, Building Automation and HVAC, Embedded CAN Gateway, Battery-Powered Sensor Node, Test and Measurement Equipment, Consumer and Portable Equipment.
Industrial CAN Automation
The TCAN337DR fits industrial automation nodes that connect sensors, actuators, and controllers over a 3.3 V CAN bus. Its 3 V to 3.6 V operating range, ISO 11898-2 compatibility, and 1 Mbps maximum signaling rate provide a conventional high-speed CAN physical layer without requiring a 5 V transceiver. In a PLC or factory gateway, the device connects the controller’s TXD and RXD pins to CANH and CANL. Its normal mode supports continuous communication, while silent mode allows a node to monitor bus state without driving the bus when the application does not require transmission.
Recommended
Automotive and Transportation Electronics
The TCAN337DR is appropriate for 3.3 V automotive and transportation electronics operating across the verified -40°C to 125°C temperature range. It can serve as the bus interface between a low-voltage body or sensor controller and a high-speed CAN network. The 1 Mbps rating suits conventional CAN communication, and CAN FD compatibility allows use in systems migrating toward more efficient payload transport. However, the supplied data does not explicitly confirm AEC-Q100 qualification, so automotive sourcing decisions must verify qualification, production status, and any manufacturer-specific quality requirements separately.
Recommended
Robotics and Motor Control
The TCAN337DR can provide a reliable physical-layer interface in robot controllers, motor-control modules, and sensor aggregators that operate from 3.3 V. Its 1 Mbps signaling limit supports the stated high-speed CAN role, while shutdown and standby modes help manage energy use in mobile or intermittently powered systems. The 8-pin SOIC package is straightforward for conventional PCB assembly and matched to the manufacturer’s drop-in-compatible family package. Designers should compare logic thresholds, bus fault handling, and termination against the controller interface before release.
Recommended
Building Automation and HVAC
The TCAN337DR suits building-automation controllers, room modules, and HVAC gateways that use a low-voltage CAN physical layer. At up to 1 Mbps, it supports control and sensor traffic on a 3 V to 3.6 V supply, and the ISO 11898-2 compatibility provides a defined high-speed CAN physical-layer basis. Silent mode is useful during diagnostics or coordinated bus shutdown, while standby and shutdown support power-conscious accessories. The final design must still provide correct 120-ohm termination at bus ends, adequate common-mode margin, and manufacturer-recommended decoupling.
Recommended
Embedded CAN Gateway
The TCAN337DR is a useful interface stage in an embedded CAN-to-serial or CAN-to-network gateway built around a 3.3 V microcontroller. The transceiver converts the controller’s digital transmit and receive signals to the differential CAN bus, adding the physical layer required for reliable communication with remote nodes. Its 1 Mbps rate is appropriate for conventional CAN FD systems whose timing remains within that limit, while CAN FD protocol support makes the part relevant to gateways handling higher-payload traffic. The 8-pin SOIC footprint minimizes routing complexity compared with larger interface packages.
Recommended
Battery-Powered Sensor Node
The TCAN337DR can support 3.3 V battery-powered sensor nodes that need intermittent or low-power CAN connectivity. Shutdown and standby modes provide mechanisms to reduce current use when communication is unnecessary, while silent mode can support monitoring without active bus transmission. The 3 V to 3.6 V supply range aligns with common regulated 3.3 V power rails, and the 1 Mbps rating covers many local sensor-network applications. Designers should select the best operating mode for wake behavior and confirm exact current consumption and logic thresholds in the manufacturer documentation.
Recommended
Test and Measurement Equipment
The TCAN337DR can be used in CAN protocol analyzers, interface fixtures, and automated test equipment that communicates with devices over a 3.3 V high-speed CAN bus. Its ISO 11898-2 compatibility and 1 Mbps signaling rate allow it to participate in legacy CAN systems, while CAN FD support is relevant to modern equipment under test. The 8-pin SOIC package permits straightforward insertion into test boards. For dependable measurements, the fixture must preserve approved bus topology, use proper termination, avoid excessive stub lengths, and provide a stable 3.3 V supply with adequate decoupling.
Recommended
Consumer and Portable Equipment
The TCAN337DR can serve as the CAN interface in portable or consumer equipment where the system uses a 3.3 V controller and needs a conventional high-speed CAN connection. Low-power shutdown and standby modes are useful in portable products, while the 8-pin SOIC package offers a straightforward assembly option for cost-conscious boards. Designers should evaluate the transceiver against the system’s supply tolerance, EMI environment, and bus-length requirements. Because the device is specified only to 1 Mbps, it should not be selected for designs requiring the 5 Mbps signaling capability of TCAN337G variants.
Recommended
Recommended Products Summary
Engineering reference data for TCAN337DR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TCAN337D | TCAN337GDR | TCAN337GDCNR | TCAN334DR | SN75176BD | TJA1021T/20/C |
|---|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | NXP Semiconductors |
| Package | 8-pin SOIC (D) | 8-pin SOIC (D) - same | 8-pin SOIC (D) - same | 8-pin SOIC (D) - same | 8-pin SOIC (D) - same | 8-pin SOIC (D) - same | 8-pin SOIC (D) - same |
Key Differentiators
- Direct 1 Mbps replacement in the same TI family (vs TCAN337GDR)
- Pin- and package-consistent ordering option (vs TCAN337D)
- CAN FD capability without a 5-Mbps requirement (vs TCAN334DR)
- Low-voltage 3.3 V operation with broad temperature range (vs SN75176BD)
Design Notes
Follow the Texas Instruments TCAN337 datasheet layout for the 8-pin SOIC footprint, including recommended copper and thermal treatment. Keep the transceiver close to the CANH and CANL connector or bus-header pins to minimize susceptibility to EMI and ESD. Route TXD and RXD away from the differential bus nets where practical; unintended coupling into these logic lines can create command errors even when the CAN wiring itself is correctly terminated.
Provide a stable 3.3 V supply within the verified 3 V to 3.6 V operating range and use the manufacturer-recommended bypass capacitors placed close to VCC and ground. Estimate the local rail requirement from the transceiver load plus controller current rather than assuming the controller alone determines supply droop. Confirm capacitor voltage rating and DC-bias derating so capacitance remains adequate during transient operation.
Do not select TCAN337GDR merely because it uses the same 8-pin SOIC footprint: its verified maximum signaling rate is 5 Mbps, while TCAN337DR is specified to 1 Mbps. Likewise, confirm standby-versus-silent behavior when replacing TCAN337DR with TCAN334DR. The physical footprint may remain compatible, but wake behavior, bus participation, and timing must match the system’s fault-recovery requirements.
Terminate the CAN bus correctly at both physical ends, normally with 120 ohms, and avoid placing unnecessary termination across every node. Use a controlled common-mode network because the transceiver’s verified bus-fault voltage range is -14 V to 14 V. Keep the differential pair tightly routed, minimize stubs, and connect the connector return path appropriately to reduce radiated emissions and improve immunity in industrial environments.
Compliance Information
The supplied search results mention RoHS and REACH in comparison-page snippets but do not provide an authoritative compliance statement for TCAN337DR. The part is an industrial/automotive-temperature interface IC, but the verified data does not explicitly identify it as AEC-Q100 qualified; automotive designs should verify qualification with Texas Instruments.