My Inquiry
My Account
Texas Instruments SN65HVD1040DR
- Part No.:
- SN65HVD1040DR
- Manufacturer:
- Texas Instruments
- Category:
- Drivers, Receivers, Transceivers
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
SN65HVD1040DR.pdf
- Description:
- IC TRANSCEIVER HALF 1/1 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:7,492
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SN65HVD1040 from Texas Instruments is a high-speed CAN bus transceiver compliant with ISO 11898, supporting data rates up to 1 Mbps, featuring ±12 kV ESD protection on bus pins, –27 V to 40 V bus-fault tolerance, and low-power standby mode drawing 5 μA typical. It serves as the physical layer interface between CAN controllers and differential bus lines in industrial automation, automotive diagnostics, and SAE J1939 systems.
For engineers reviewing the SN65HVD1040 datasheet, SN65HVD1040 pinout, SN65HVD1040 application, or SN65HVD1040 equivalent, this page delivers verified electrical specifications, functional mode behavior (high-speed vs. bus-monitor standby), dominant time-out timing (300–700 μs), split-pin biasing capability (VCC/2), and real-world thermal shutdown activation at 190°C - all critical for robust CAN node design and failure-mode analysis.
Technical Context
The SN65HVD1040 implements a dual-mode CAN physical layer: STB pin selects between full-speed operation (STB = GND) with bidirectional TXD→CANH/CANL and CANH/CANL→RXD signal paths, or low-power bus-monitor standby (STB = VCC), where only dominant bus events >5 μs trigger RXD output. Its driver includes dominant time-out circuitry triggered by falling edge on TXD, disabling output after 300–700 μs if no rising edge occurs.
Internally, it integrates overtemperature shutdown (190°C junction), rugged input protection (–200 V to +200 V transients per ISO 7637), and a dedicated SPLIT pin delivering VCC/2 for stable common-mode bias in split-termination networks. Receiver hysteresis is 100–125 mV in high-speed mode and supports indeterminate states during bus transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Signaling Rate | Up to 1 Mbps - enables full-speed CAN FD pre-phase and legacy CAN 2.0B communication without bandwidth limitation. |
| Bus Fault Tolerance | –27 V to +40 V - protects against battery reverse connection, load dump, and ground loss in 12/24 V vehicle and industrial systems. |
| ESD Protection | ±12 kV HBM on CANH/CANL/SPLIT - eliminates need for external TVS diodes in most automotive and medical applications. |
| Standby Supply Current | 5 μA typical - extends battery life in handheld diagnostics and remote sensor nodes requiring wake-on-bus functionality. |
| Dominant Time-Out | 300–700 μs - prevents single-node bus lockup during controller firmware hangs while allowing valid 11-bit dominant sequences. |
| Operating Temperature | –40°C to +125°C - qualified for under-hood automotive, HVAC control, and industrial motor drive environments. |
| Common-Mode Range | –12 V to +12 V - ensures reliable reception across noisy ground offsets in distributed CAN networks. |
Pinout & Package
SN65HVD1040 is housed in an 8-pin SOIC package (4.90 mm × 3.91 mm body size), optimized for automated assembly and thermal dissipation in space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TXD (1) | Driver input | Logic-level digital input controlling bus state: LOW → dominant, HIGH → recessive; includes dominant time-out detection. |
| GND (2) | Power reference | Primary ground return for internal logic and driver/receiver circuits; must be low-impedance connection to system ground plane. |
| VCC (3) | Supply input | 5-V ±5% supply powering all internal circuitry; decoupling capacitor (100 nF) required within 1 cm of pin. |
| RXD (4) | Receiver output | CMOS-compatible digital output reflecting bus state: LOW = dominant, HIGH = recessive; monotonic during power cycling. |
| SPLIT (5) | Reference output | Provides VCC/2 voltage for split-termination networks; stabilizes common-mode voltage and reduces EMI in long bus runs. |
| CANL (6) | Bus line (low) | Differential bus terminal; withstands –27 V to +40 V faults and ±200 V transients; connects to twisted-pair CAN_L wire. |
| CANH (7) | Bus line (high) | Differential bus terminal; matches CANL in fault rating and transient immunity; connects to twisted-pair CAN_H wire. |
| STB (8) | Mode select input | Active-high control: GND = high-speed mode (full TX/RX), VCC = low-power bus-monitor standby (RX-only, wake-on-dominant). |
Key Features
| Feature | Design Value |
|---|---|
| Drop-in replacement for TJA1040 | Pin- and function-compatible with NXP TJA1040, enabling direct substitution in existing ISO 11898 designs without layout changes. |
| Rugged split-pin bus stability | SPLIT output enables precise VCC/2 biasing for split-termination, reducing common-mode noise and improving EMC performance in harsh environments. |
| Glitch-free power-up/down | Bus inputs and outputs remain high-impedance or monotonic during VCC ramp; prevents false dominant states during brownout or hot-plug events. |
| Bus-fault protected receiver | Continues to monitor bus and assert RXD during –27 V to +40 V faults on CANH/CANL - maintains network visibility even during wiring faults. |
| DeviceNet™ Vendor ID 806 | Pre-programmed vendor ID allows immediate integration into DeviceNet™ networks without custom configuration or firmware updates. |
Applications
| Industrial Automation | Automotive Diagnostics |
|---|---|
|
Use Scenario: Distributed I/O modules in factory PLC networks using SAE J1939 or CANopen protocols. IC Role / Device Role / Timing Role: Physical layer transceiver converting microcontroller UART/CAN controller signals to differential CANH/CANL bus levels. Use Value: ±12 kV ESD protection and –27 V to +40 V fault tolerance prevent field failures in electrically noisy motor control cabinets. |
Use Scenario: Handheld OBD-II scanners and ECU reprogramming tools operating from vehicle battery. IC Role / Device Role / Timing Role: Low-power CAN interface enabling bus monitoring and command transmission during engine-off conditions. Use Value: 5 μA standby current and wake-on-bus (≥5 μs dominant pulse) extend battery runtime without sacrificing responsiveness. |
| Medical Imaging Systems | HVAC Control Networks |
|
Use Scenario: Interconnection of MRI gantry subsystems, patient table controls, and console displays via isolated CAN bus. IC Role / Device Role / Timing Role: Isolated physical layer node providing galvanically separated, noise-immune communication between safety-critical modules. Use Value: Monotonic outputs during power cycling and glitch-free startup ensure no spurious bus traffic during system boot or reset sequences. |
Use Scenario: Multi-zone HVAC controllers communicating temperature, damper position, and compressor status across building-wide CAN network. IC Role / Device Role / Timing Role: Bus transceiver interfacing 8-bit microcontrollers to differential CAN bus with integrated SPLIT pin for stable termination. Use Value: VCC/2 SPLIT output simplifies split-termination implementation, reducing component count and improving signal integrity over 100+ meter cable runs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar CAN transceiver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TJA1040T/3 | Pin-compatible but lacks SPLIT pin; no VCC/2 reference output; lower ESD rating (±8 kV HBM). | Requires external bias network for split termination; less robust in high-ESD environments like service bays or factory floors. | Choose when legacy TJA1040 footprint must be retained and split termination is not required. |
| MCP2551-I/P | 5 V only, no standby mode, no dominant time-out, higher quiescent current (25 mA active), no SPLIT pin. | Not suitable for battery-powered or fail-safe bus applications; requires external protection for >±8 kV ESD. | Use only in cost-sensitive, non-safety-critical 5 V CAN nodes with simple termination and no low-power requirements. |
Compared with TJA1040T/3 and MCP2551-I/P, SN65HVD1040 provides unique integration of bus-wakeup standby, dominant time-out, and SPLIT pin - delivering superior reliability in automotive diagnostics, industrial automation, and medical systems where fault resilience and power efficiency are mandatory.
Availability
SN65HVD1040 is available at Aetrix Electronics and suitable for industrial automation, automotive diagnostics, and medical imaging applications requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for SN65HVD1040 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 expertise in automotive and industrial interface ICs.
The SN65HVD1040 belongs to TI's high-reliability CAN transceiver product line, engineered specifically for demanding applications including SAE J1939, ISO 11783, and DeviceNet™ networks where bus fault resilience, low-power operation, and electromagnetic compatibility are critical.
FAQ
What is the dominant time-out duration for SN65HVD1040, and how does it affect CAN protocol compliance?
The SN65HVD1040 dominant time-out (DTO) is specified from 300 μs to 700 μs. This window prevents bus lockup during controller failures while remaining compatible with CAN 2.0B's longest allowed dominant sequence (11 bits). The DTO resets on each TXD rising edge, ensuring that valid multi-bit dominant frames - such as overload or error flags - pass unblocked. SN65HVD1040 thus maintains full protocol compliance without requiring firmware workarounds.
How does the SPLIT pin on SN65HVD1040 improve CAN bus stability compared to standard termination?
The SPLIT pin on SN65HVD1040 delivers a precise VCC/2 reference voltage used to bias the center tap of a split-termination network (e.g., two 60 Ω resistors to SPLIT instead of one 120 Ω to ground). This actively stabilizes the common-mode voltage on CANH/CANL, reducing radiated emissions and improving noise immunity - especially over long cables or in electrically noisy environments. Unlike passive termination, SPLIT-based biasing minimizes common-mode drift caused by ground potential differences between nodes.
Can SN65HVD1040 operate reliably in automotive under-hood environments?
Yes. SN65HVD1040 is characterized from –40°C to +125°C and features –27 V to +40 V bus fault protection, ±12 kV HBM ESD rating, and ISO 7637 transient immunity (–200 V to +200 V). Its thermal shutdown activates at 190°C junction temperature, safeguarding against sustained short-circuits. These specifications meet AEC-Q100 stress test requirements for Grade 1 automotive applications, making SN65HVD1040 suitable for engine control, battery management, and chassis modules.
What happens to RXD output during SN65HVD1040 thermal shutdown?
During thermal shutdown, the SN65HVD1040 disables its driver outputs (CANH/CANL go high-impedance), but the receiver remains fully operational. RXD continues to reflect the actual bus state - outputting LOW for dominant and HIGH for recessive - enabling continuous network monitoring even when the local node cannot transmit. This behavior preserves system visibility and supports diagnostic logging during overtemperature events, a key requirement in safety-critical CAN networks.
Is SN65HVD1040 pin-compatible with older CAN transceivers like PCA82C251?
No. SN65HVD1040 is not pin-compatible with PCA82C251. While both are 8-pin SOIC CAN transceivers, their pin assignments differ significantly: PCA82C251 places VCC on pin 8 and GND on pin 5, whereas SN65HVD1040 uses pin 3 for VCC and pin 2 for GND. Additionally, SN65HVD1040 includes STB (pin 8) and SPLIT (pin 5) functions absent in PCA82C251. Direct replacement requires PCB redesign; however, SN65HVD1040 is pin-compatible with TJA1040, enabling drop-in upgrades.
SN65HVD1040DR 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:
- Half
- Receiver Hysteresis:
- 125 mV
- Data Rate:
- -
- Voltage - Supply:
- 4.75V ~ 5.25V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
SN65HVD1040DR FAQ
1.How can I place an order for SN65HVD1040DR through Aetrix?
Please submit a Request for Quotation (RFQ) for SN65HVD1040DR 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 SN65HVD1040DR reliable?
The price and inventory of SN65HVD1040DR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SN65HVD1040DR is usually 5 days.
3.What payment methods are accepted for SN65HVD1040DR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SN65HVD1040DR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SN65HVD1040DR?
SN65HVD1040DR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SN65HVD1040DR 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 SN65HVD1040DR?
For technical support, including SN65HVD1040DR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SN65HVD1040DR requirements.
6.How does Aetrix verify that SN65HVD1040DR is sourced from the original manufacturer or authorized distributors?
All SN65HVD1040DR 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 SN65HVD1040DR meets industry standards.
7.What is the process for return or replacement of SN65HVD1040DR?
All SN65HVD1040DR units undergo pre-shipment inspection (PSI). If there is an issue with SN65HVD1040DR, 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 SN65HVD1040DR part is unused and in its original packaging.
Return procedure for SN65HVD1040DR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SN65HVD1040DR 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…
