Adafruit CAN Pal - CAN Bus Transceiver - TJA1051T/3

Rating:

100% of 100

SKU: ADA5708 Brand: Adafruit

If you'd like to connect a board with native CAN Peripheral support, the Adafruit CAN Pal Transceiver will take the 3V logic level signals and convert...

$7.90 AUD, inc GST

$7.18 AUD, exc GST

In stock, ships same business day if ordered before 2PM
Fastest delivery: Tomorrow* Disclaimer:
The shipping address needs to be in the AusPost next day network and eParcel Express is chosen during checkout. On rare occasions, orders may be delayed by up to one business day due to AusPost pickup timings or for order verifications.

Quantity Discounts:

10-25 $6.89 (exc GST)
25+ $6.68 (exc GST)

Recommended Essentials:

OBD-II connector

$2.70

If you'd like to connect a board with native CAN Peripheral support, the Adafruit CAN Pal Transceiver will take the 3V logic level signals and convert them to CAN logic levels with the differential signalling required to communicate. Note that not all chips have a CAN peripheral! Some that Adafruit know do have it are the ESP32/ESP32-S2/ESP32-S3 (note that ESP32 calls this interface TWAI not CAN) series of chips, SAME51, STM32F405, or Teensy 4.

Check the product documentation for the board you are wiring this to, to make sure that the chip has CAN support and the RX and TX pins are brought out for you to connect the transceiver to! Despite sharing the 'RX' and 'TX' name with UART, they're not at all the same interface.

CAN Bus is a small-scale networking standard, originally designed for cars and, yes, busses, but is now used for many robotics or sensor networks that need better range and addressing than I2C, and don't have the pins or computational ability to talk on Ethernet. CAN is 2 wire differential, which means it's good for long distances and noisy environments.

Messages are sent at about 1Mbps rate - you set the frequency for the bus and then all 'joiners' must match it, and have an address before the packet so that each node can listen in to messages just for it. New nodes can be attached easily because they just need to connect to the two data lines anywhere in the shared net. Each CAN devices sends messages whenever it wants, and thanks to some clever data encoding, can detect if there's a message collision and retransmit later.

Adafruit have added a few nice extras to this breakout pal to make it useful in many common CAN scenarios:

TJA1051/T3 can communicate with 3.3V~5V logic for use with modern microcontrollers.
5V charge-pump voltage generator, so even though you are running 3.3V power and logic on most modern microcontroller boards, it will generate a nice clean 5V as required by the transceiver. No separate 5V power required!
3.5mm terminal block pre-soldered to the board.
2 x 60 ohm termination resistor on board (120 ohm in series), you can remove or activate the termination easily by flipping the onboard switch.

Technical Details

TJA1051T/3 Specifications:

Fully ISO 11898-2:2003 compliant
Timing guaranteed for data rates up to 5 Mbit/s in the CAN FD fast phase
Suitable for 12 V and 24 V systems
Low ElectroMagnetic Emission (EME) and high ElectroMagnetic Immunity (EMI)
V_IO input on TJA1051T/3 and TJA1051TK/3 allows for direct interfacing with 3 V to 5 V microcontrollers
Functional behaviour predictable under all supply conditions
Transceiver disengages from the bus when not powered up (zero load)
High ElectroStatic Discharge (ESD) handling capability on the bus pins
Bus pins protected against transients in automotive environments
Transmit Data (TXD) dominant time-out function
Undervoltage detection on pins V_CC and V_IO
Thermally protected

Product Dimensions: 20.3mm x 20.2mm x 4.0mm / 0.8" x 0.8" x 0.2"

Product Weight: 1.4g / 0.0oz

This product is listed in:

Breakouts & Modules>CAN Bus

Product Comments

Start the conversation

Exact shipping can be calculated on the view cart page (no login required).

Products that weigh more than 0.5 KG may cost more than what's shown (for example, test equipment, machines, >500mL liquids, etc).

We deliver Australia-wide with these options (depends on the final destination - you can get a quote on the view cart page):

$3+ for Stamped Mail (typically 10+ business days, not tracked, only available on selected small items)
$7+ for Standard Post (typically 6+ business days, tracked)
$11+ for Express Post (typically 2+ business days, tracked)
Pickup - Free! Only available to customers who live in the Newcastle region (must order online and only pickup after we email to notify you the order is ready). Orders placed after 2PM may not be ready until the following business day.

Non-metro addresses in WA, NT, SA & TAS can take 2+ days in addition to the above information.

Some batteries (such as LiPo) can't be shipped by Air. During checkout, Express Post and International Methods will not be an option if you have that type of battery in your shopping cart.

International Orders - the following rates are for New Zealand and will vary for other countries:

$12+ for Pack and Track (3+ days, tracked)
$16+ for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount will increase based on the weight of your order.

Our physical address (here's a PDF which includes other key business details):

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Take a look at our customer service page if you have other questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.

Have a product question? We're here to help!