Product Overview
The TJA1040 is a high-speed CAN transceiver from NXP Semiconductors, providing a robust physical layer interface between a CAN protocol controller and the twisted-pair CAN bus. Fully compliant with ISO 11898 standard and supporting data rates up to 1 Mbit/s, it features two operating modes: Normal for full transmit/receive operation, and Standby for ultra-low power with bus wake-up capability. The device operates from a 4.5 V to 5.5 V supply and includes a separate VIO pin for direct 3.3 V or 5 V microcontroller I/O interfacing without level shifters. The TJA1040 delivers excellent electromagnetic compatibility (EMC) performance with optimized output slew rates, differential receiver with wide common-mode range, and integrated protection features including thermal shutdown, bus short-circuit withstand capability, and under-voltage detection. AEC-Q100 qualified and packaged in a compact SOIC-8 form factor, it is the industry-standard choice for automotive and industrial CAN networking applications where reliability and low power consumption are critical.
Key Specifications
| Standard Compliance | ISO 11898-2 / ISO 11898-5 |
| Data Rate | Up to 1 Mbit/s |
| Supply Voltage (VCC) | 4.5 V to 5.5 V |
| I/O Supply (VIO) | 3.3 V to 5.5 V |
| Bus Voltage (CANH/CANL) | -27 V to +40 V |
| Differential Output (Dom) | 1.5 V to 3.0 V |
| Supply Current (Normal) | ~50 mA typical (dominant) |
| Supply Current (Standby) | ~10 µA typical |
| Bus ESD Protection | ±8 kV (HBM) |
| Operating Modes | Normal, Standby |
| Wake-up Detection | Yes (bus wake-up in standby mode) |
| Thermal Shutdown | Yes |
| Bus Short-Circuit Protection | Yes (to battery and ground) |
| Under-Voltage Detection | Yes (VCC and VIO) |
| I/O Voltage Level | 3.3 V / 5 V compatible (via VIO) |
| Temperature Range | -40°C to +125°C (automotive) |
| Qualification | AEC-Q100 Grade 1 |
| Package | SOIC-8 (3.9 mm width) |
Features
- Fully ISO 11898-2 and ISO 11898-5 compliant
- Up to 1 Mbit/s data rate
- Two operating modes: Normal and Standby
- Very low standby current with bus wake-up
- Separate VIO supply for 3.3 V / 5 V I/O adaptation
- Excellent electromagnetic compatibility (EMC)
- Bus pins protected against automotive transients
- Bus short-circuit proof (to battery and ground)
- Thermal shutdown protection
- Under-voltage detection on VCC and VIO
- Predictable behavior in all supply states
- Bus passive when unpowered (zero load)
- AEC-Q100 qualified (automotive grade)
- SOIC-8 surface mount package
- RoHS compliant, halogen-free
- Automotive body electronics and body control modules
- Automotive powertrain and chassis systems
- Industrial control and factory automation networks
- CAN-based sensor and actuator networks
- Medical equipment and diagnostic instruments
- Building automation and HVAC systems
- Marine and avionics electronics
- Automotive infotainment and telematics
- Electric vehicle subsystems
- Test and measurement equipment
- Automotive body electronics and BCM modules
- Industrial control and factory automation
- CAN-based sensor networks
- Automotive powertrain and chassis systems
- Medical equipment and instrumentation
- Building automation and HVAC control
- Marine electronics
- Automotive infotainment systems
- Automotive Electronics: All automotive-grade components pass AEC-Q series certification, featuring excellent stability and durability to adapt to complex vehicle operating environments.
- Medical Devices: High-reliability components meet medical industry safety and compliance regulations, ensuring stable operation for medical equipment.
- Industrial Control & Consumer Electronics: Products conform to universal international electronic industry standards, suitable for long-term continuous operation of various equipment.
- Accepted Payment Methods
- T/T (Bank Wire Transfer): The primary settlement method for bulk orders and a widely used international payment channel.
- PayPal: Ideal for small orders, sample orders and quick payments.
Settlement Currency
US Dollar (USD) is the default settlement currency. RMB is available for domestic customers.
Bank Charges
All transfer fees, intermediary bank charges and other remittance-related expenses shall be borne by the buyer.
- Payment Requirements
- Sample and small orders: Shipment will be arranged upon full payment.
- In-stock bulk orders: Goods will be delivered within 2 to 3 working days after full payment.
- Logistics Partners
- International Express: DHL, FedEx, UPS, TNT
- Economy Logistics: Air freight and sea freight for large-volume cargo
- Domestic Delivery: SF Express, Yunda Express
- Order Processing Time
- In-stock items: Orders confirmed and fully paid before 14:00 (GMT+8) will be shipped on the same day. All other orders will be dispatched within 1 to 2 working days.
- Out-of-stock or sourced items: The delivery lead time will be confirmed separately according to brand and inventory status.
- Estimated Transit Time
- International Express: 3 – 7 working days globally
- Air Freight: 7 – 12 working days
- Sea Freight: 25 – 40 working days for heavy and large bulk cargo
- Shipping Fee Rules
- Shipping cost is calculated based on package weight, volume, destination and delivery method.
- Both freight prepaid and freight collect are available. Please provide your courier account number in advance if you choose freight collect.
- Free international express delivery is offered for large orders. Terms for long-term partners can be negotiated separately.
- Shipment Tracking
Within 24 hours after dispatch, we will send the tracking number, commercial invoice, packing list and other documents to your email or communication account. You may check the shipment status online in real time.
MOQ & Sample Service
We support flexible minimum order quantities for samples, small-batch and large-batch orders. All sample orders shall comply with the above shipping and payment policies.
Packaging Standard
All electronic components are packed with professional anti-static and shockproof materials. Original factory packaging is available for branded chips and integrated circuits.
Import Duties & Taxes
All import duties, customs clearance fees and local taxes incurred for international shipments shall be borne by the buyer. We will provide complete customs documents to assist you with clearance procedures.
- Handling of Lost or Damaged Goods
- In case of loss or severe damage during transit, please contact us within 48 hours after receiving the tracking information. We will assist you in filing a claim with the logistics provider.
- We shall not be liable for any losses caused by incorrect delivery address, wrong contact information or the buyer’s refusal to complete customs clearance.
- Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong Province, China
- Business Hours: 09:00 – 18:00, Monday to Friday. Closed on weekends and official public holidays.
- Notice: Please make an appointment via email or communication tools one day in advance, and present your order information upon pickup.
- All components are packed separately to avoid damage caused by friction and collision;
- Shockproof buffer materials are added for fragile products to ensure transportation safety;
- Each package is clearly marked with part number, quantity, batch number and specifications for easy inventory counting and management.
- Anti-static Packaging: Static-sensitive components such as chips, circuit boards and sensors are packaged with anti-static bags, shielding boxes and conductive foam in strict accordance with international anti-static standards to prevent static damage.
- Vacuum Moisture-proof Packaging: Moisture-sensitive components are vacuum-sealed with desiccants to isolate humid air, suitable for ocean transportation and long-term storage.
- Original Factory Packaging: Integrated circuits of brands such as NXP are delivered with original reels, trays or tubes by default, retaining complete original packaging and adapting to automated SMT production lines.
- Discrete Device Packaging: Discrete devices such as SMD resistors, power resistors and LEDs are quantitatively and classifiedly packaged with accurate quantity and clear marking.
- Connector / Aviation Connector Packaging: Hard outer packaging is adopted to prevent pin bending and structural deformation.
Applications
The TJA1040 is a high-speed CAN (Controller Area Network) transceiver from NXP Semiconductors, providing the interface between a CAN protocol controller and the physical CAN bus. Fully compliant with the ISO 11898 standard, it supports data rates up to 1 Mbit/s and is optimized for automotive and industrial applications requiring robust electromagnetic compatibility (EMC) performance. The device features two operating modes: Normal mode for full operation and Standby mode for low-power consumption with bus wake-up capability. Operating from a 4.5 V to 5.5 V supply, it provides 3.3 V and 5 V microcontroller interface compatibility, with dedicated TXD and RXD pins for differential CAN bus communication. The TJA1040 includes comprehensive protection features including thermal shutdown, bus short-circuit protection, under-voltage detection, and 8 kV ESD protection on the bus pins. Offered in an SOIC-8 package, it is AEC-Q100 qualified and widely used in automotive body electronics, industrial control, and other CAN-based networking applications.
The TJA1040 operates as the physical layer interface in a CAN network, translating the logic-level signals from the CAN controller (TXD pin) into differential bus signals (CANH and CANL), and vice versa on the receive path (RXD pin). In Normal mode, when TXD is driven low by the controller, the transceiver pulls CANH high and CANL low, creating a differential voltage (dominant state); when TXD is high, both CANH and CANL rest near 2.5 V (recessive state) with zero differential voltage. The receiver detects the differential voltage on the bus and outputs the corresponding logic level on RXD. In Standby mode, the transceiver draws minimal current while maintaining a low-power receiver that monitors the bus for a wake-up pattern; upon detection, it signals the microcontroller via the RXD pin (or a dedicated wake pin on some variants) to trigger a return to Normal mode. The integrated EMC optimized output drivers with controlled slew rates minimize electromagnetic emissions, while the differential receiver with wide common-mode range provides excellent noise immunity. Protection features include over-temperature shutdown, bus-to-battery and bus-to-ground short-circuit withstand capability, and under-voltage detection on both the VCC and VIO supply pins.
| Pin No. | Symbol | Type | Description |
|---|---|---|---|
| 1 | TXD | I | Transmit data input (from CAN controller, active low) |
| 2 | GND | P | Ground |
| 3 | VCC | P | Supply voltage (4.5 V to 5.5 V) |
| 4 | RXD | O | Receive data output (to CAN controller) |
| 5 | VIO | P | I/O supply voltage (for 3.3V/5V I/O level adaptation) |
| 6 | CANL | I/O | CAN low-level bus line |
| 7 | CANH | I/O | CAN high-level bus line |
| 8 | STB | I | Standby control input (high = standby, low = normal) |
Mode Control: STB = Low → Normal mode (full operation); STB = High → Standby mode (low power, wake on bus)
| Model | Manufacturer | Features | Description |
|---|---|---|---|
| TJA1042 | NXP | Standby + VIO | Enhanced version, separate VIO supply |
| TJA1044 | NXP | Standby, 5 Mbps FD | CAN FD capable, faster |
| TJA1050 | NXP | High-speed only | Basic high-speed CAN transceiver |
| SN65HVD230 | TI | 3.3V, high-speed | TI 3.3V CAN transceiver |
| MCP2551 | Microchip | High-speed | Microchip CAN transceiver |
| NCV7342 | onsemi | Standby, AEC-Q100 | onsemi automotive CAN transceiver |
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Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
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Materialparts is a professional electronic component supplier based in Shenzhen, China, with over 20 years of global trading experience. We integrate component procurement, quality inspection, technical support, customized packaging, and global delivery services to provide one-stop supply chain solutions. Our business covers industrial control, automotive electronics, consumer electronics, medical devices and other industries. We always adhere to genuine sources, stable supply and considerate after-sales service.
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Tel / WhatsApp: +86 13760382860
Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
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