I2C
IC serial bus protocol speed grades; standard mode: 0.1 / 0.4, fast mode: 1.0 / 3.4 / 5.0 Mbit/s are maximum ratings. Also known as: Inter-Integrated Circuit
See Also: Serial, Serial Communications, LIN, Can bus, ExpressCard, Fieldbus, FireWire, RS-232, RS-485, PCI Express, Serial ATA, Serial Peripheral Interface, SMBus
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Product
I2C Isolators
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Analog Devices’ family of isolated I2C isolators support a complete isolated I2C interface. This portfolio is based on our iCoupler® chip scale transformer technology. iCoupler is a magnetic isolation technology with functional, performance, size, and power consumption advantages compared to optocouplers. By integrating iCoupler channels with semiconductor circuitry, our technology enables a complete, isolated I2C interface with a small form factor. Our I2C isolators covers applications such as central office switching, networking, and power over Ethernet.
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Product
USB to I2C Adapter
Model JI-300
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The JI-300 is a versatile, easy to use PC hosted adapter used to drive I2C communicationsto/from a target device. The desktop unit can be configured to interface a variety of I2Cnetworks. Bus parameters such as clock frequency, duty-cycle, setup and hold times, busvoltage, and pull-up resistor values can be varied. JI-300''s diagnostic features including"excessive clock-stretch", "bus-not-free", and "bus contention" monitoring, as well as statusreporting at the conclusion of each message transaction simplifies I2C trouble-shooting. AWindows software application manages the setup and control of the instrument.Communications and unit power is provided via a USB 2.0 connection.
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Product
USB-8451, 250 kHz I2C, 12 MHz SPI I2C/SPI Interface Device
779553-01
Interface Module
The NI USB‑8451 is a master interface for connecting to and communicating with inter-integrated circuit (I2C), System Management Bus (SMBus), and serial peripheral interface (SPI) devices. With plug‑and‑play USB connectivity, the USB‑8451 is a portable solution to communicate with consumer electronics and integrated circuits. It also includes eight general-purpose digital I/O lines for a variety of applications, such as configuring the address of I2C devices or toggling LEDs. The USB‑8451 can be physically located more closely to I2C/SPI devices than PCI interfaces, reducing I2C bus length and minimizing noise problems. Additionally, the interface provides +5 V and GND to power circuits with no external power supply.
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Product
I2C Bus Monitor - USB
Model JI-216
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The JI-216 I2C Bus Monitor is a low cost, easy-to-use PC hosted instrument specificallydesigned for troubleshooting and debugging I2C networks. The JI-216''s FPGA basedarchitecture provides for the capture and display of all valid or invalid messages and I2Cbus events. Captured I2C messages are available for display in two modes: real-timestreaming, or triggered. These modes provide optimized data display for either hardwareor software development. The SDA/SCL timing display aids in tracking down and solvinghardware timing problems. JI-216''s broad bandwidth (DC 3.4Mbits/s), wide input signalrange (0 15.0V), and variable signal filtering provides flexibility in monitoring a variety ofI2C bus systems. An intuitive Windows application manages instrument setup andcontrol. Communications and unit power is provided via a USB 2.0 link.
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Product
I2C High Speed Interface for USB
telos Tracii XL
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telos EDV Systementwicklung GmbH
Tracii XL is the outstanding I2C Adapter featuring the I2C high-speed specification running the I2C bus with up to 2 Mbit/s. Additionally Tracii XL can work as an I2C monitor.
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Product
Breakout - General Purpose USB to GPIO+SPI+I2C
FT232H
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This chip from FTDI is similar to their USB to serial converter chips but adds a ''multi-protocol synchronous serial engine'' which allows it to speak many common protocols like SPI, I2C, serial UART, JTAG, and more! There''s even a handful of digital GPIO pins that you can read and write to do things like flash LEDs, read switches or buttons, and more. The FT232H breakout is like adding a little swiss army knife for serial protocols to your computer!
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Product
I2C Adapter
RS485
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*RS485 address adjustable via DIP switch*I2C frequency adjustable up to 400kHz*I2C level shifter, I2C level from 2V to 15V*Interrupt input for external events*Simple software interface (ASCII commands)
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Product
Triple-Axis Accelerometer (+-2g/4g/8g/16g) w/ I2C/SPI
ADXL345
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Filling out our accelerometer offerings, we now have the really lovely digital ADXL345 from Analog Devices, a triple-axis accelerometer with digital I2C and SPI interface breakout. We added an on-board 3.3V regulator and logic-level shifting circuitry, making it a perfect choice for interfacing with any 3V or 5V microcontroller such as the Arduino.
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Product
I2C Soil Moisture Sensor
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Capacitive soil moisture sensor interfaced via I2C. Additionaly provides ambient light and temperature readings. Open Source Hardware. Soil moisture sensing, Light sensing, Temperature sensing.
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Product
USB-8452, 3.3 MHz I2C, 50 MHz SPI I2C/SPI Interface Device
781964-02
Interface Module
The NI USB‑8452 is a master interface for connecting to and communicating with inter-integrated circuit (I2C) and serial peripheral interface (SPI) devices. With plug‑and‑play USB connectivity, the USB‑8452 is a bus-powered, portable solution to communicate with consumer electronics and integrated circuits. It also includes eight general-purpose digital I/O lines for a variety of applications, such as configuring the address of I2C devices, toggling LEDs, or strobing convert and data ready lines common to analog converter chips. You can physically place the USB‑8452 more closely than PCI interfaces to I2C/SPI devices, which reduces I2C bus length and minimizes noise problems. Additionally, the interface provides +5 V and GND to power circuits with no external power supply.
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Product
RS232 I2C Adapter
12C Master
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*I2C frequency adjustable up to 400kHz*I2C level shifter, I2C level from 2V to 15V*Interrupt input for external events*Simple software interface (ASCII commands)
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Product
I2C High Speed Interface for USB
Tracii XL 2.0
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telos EDV Systementwicklung GmbH
Tracii XL 2.0 is the outstanding I2C Adapter featuring the I2C high-speed specification running the I2C bus with up to 3.33 Mbit/s. Additionally Tracii XL 2.0 can work as an I2C monitor.
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Product
Soil Moisture Sensor
Modbus RS485
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This is a contact-less capacitive soil moisture sensor, a continuation of my I2C soil moisture sensor. This particular version of the sensor is suited for more professional installations where long cable runs is a requirement. It adds a local voltage regulator to mitigate the voltage drop and RS485 transceiver to accommodate long wires, also reverse polarity and an additional ESD protection level is added.
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Product
SparkFun GPS Breakout
NEO-M9N, Chip Antenna (Qwiic)
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The SparkFun NEO-M9N GPS Breakout with on-board chip antenna is a high quality GPS board with equally impressive configuration options. The NEO-M9N module is a 92-channel u-blox M9 engine GNSS receiver, meaning it can receive signals from the GPS, GLONASS, Galileo, and BeiDou constellations witn ~1.5 meter accuracy. This breakout supports concurrent reception of four GNSS. This maximizes position accuracy in challenging conditions, increasing precision and decreases lock time; and thanks to the onboard rechargeable battery, you'll have backup power enabling the GPS to get a hot lock within seconds! Additionally, this u-blox receiver supports I2C (u-blox calls this Display Data Channel) which made it perfect for the Qwiic compatibility so we don't have to use up our precious UART ports. Utilizing our handy Qwiic system, no soldering is required to connect it to the rest of your system. However, we still have broken out 0.1"-spaced pins in case you prefer to use a breadboard.
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Product
Dual Wide Range Power Monitor
LTC2992
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The LTC®2992 is a rail-to-rail system monitor that measures current, voltage, and power of two supplies. It features an operating range of 2.7V to 100V and includes a shunt regulator for supplies above 100V. The voltage measurement range of 0V to 100V is independent of the input supply. Two ADCs simultaneously measure each supply’s current. A third ADC monitors the input voltages and four auxiliary external voltages. Each supply’s current and power is added for total system consumption. Minimum and maximum values are stored and an overrange alert with programmable thresholds minimizes the need for software polling. Data is reported via a standard I2C interface. Shutdown mode reduces current consumption to 25μA typically.
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Product
1Gsps, 18 Channel, Logic Analyzer with Protocol Analyzer plugins and Hardware Compression
DigiView™ DV518
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- Physical Channels: 18- Sample rate: 4ch@1 Gsps or 9ch@500Msps or 18ch@1Gsps (4 ch. are sampled every 1ns or 9 ch. are sampled every 2ns or 18 ch. are sammpled every 4ns)- Typical capture: 100M transitions (> 1B samples)- Hardware based triggers with 8 universal match circuits, and partitionable 16 stage sequencer- Adjustable Threshold (± 4V)- Real-time, Hardware-based, Adaptive Compression- Channels protected to ± 20V- Ground leads protected to ± 12V- High-quality test leads: 66 strand soft copper wires, flexible insulation, and gold plated connectors. Fit .025 square posts as well as the included clips.- Extra ESD protection- Streaming storage with auto fall-back to Store & Forward mode ensures large storage and reliability.- USB 3.0 (SS) or USB 2.0 (High Speed)- USB powered- Each DigiVIew includes all avialable Protocol Analyzer plugins (including: I2C, SPI, CAN, Async, Sync, 1-wire, I2S, TDM)- Free Plugin Developers' Kit- Requires Windows 7 or greater OS (32bit or 64bit)- Free Lifetime sofware updates.- 1 year warranty
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Product
Grid-EYE High Performance Type
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Panasonic Industrial Devices Sales Company of America
Panasonic's Grid-EYE® Series High-Performance Type is an 8x8 (64) pixel Infrared Array Sensor. This Sensor offers digital output (I2C) for thermal presence, direction, and temperature values. The built-in lens includes a 60-degree viewing angle. The Grid-EYE Sensor features compact SMD design using MEMS thermopile technology. This Sensor offers several advancements over the original Grid-EYE, including higher accuracy, enhanced resolution, and longer detection distance for true next-generation performance.
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Product
SparkFun MicroMod GNSS Carrier Board (ZED-F9P)
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With GNSS you are able to know where you are, where you're going, and how to get there anywhere on Earth within 30 seconds. This means the higher the accuracy the better! GNSS Real Time Kinematics (RTK) has mastered dialing in the accuracy of their GNSS modules to just millimeters, and that's why we had to put it on this board! With the flexibility of the MicroMod's M.2 connector, you can easily test and swap out different MicroMod processor boards for your application. Simply match up the key on your board's beveled edge connector to the key on the M.2 connector and secure the boards with a screw. This means solderless access to the ZED-F9P modules features via UART1, UART2, SPI, and I2C ports!
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Product
SIMRC - 16 x Uncommitted Reed Relay, SPST
1010-R-16-1-5/1D
Reed Relay
Our small format embedded switching (SIM relay) cards offer a choice of switching configurations using low cost industry standard SIM connectors. They free the designer from the detail of routing complex switching circuits, you may select from a wide range of cards using the built in RS-232 and I2C interfaces. These low-cost embedded switching cards are intended to be mounted on to a simple motherboard. They may be used to construct very high density switching networks. SIM based switching cards also allow for very simple in-field maintenance.
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Product
LCD Controllers
CP240x
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The CP240x extremely low power LCD controller devices can drive up to 128 LCD segments. These devices are easily interfaced with any microcontroller using SPI or I2C interfaces. A benefit to this approach is designers can select the best-fit MCU for the system and then add the CP240x to handle LCD requirements efficiently with respect to system size and power consumption.
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Product
SparkFun Distance Sensor Breakout
4 Meter, VL53L1X (Qwiic)
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This SparkFun Distance Sensor Breakout utilizes the VL53L1X next generation ToF (Time of Flight) sensor module to give you the highly accurate measurements at long ranges for its size. The VL53L1X from STMicroelectronics uses a VCSEL (Vertical Cavity Surface Emitting Laser) to emit an Infrared laser to time the reflection to the target. That means that you will be able to measure the distance to an object from 40mm to 4m away with millimeter resolution! To make it even easier to get your readings, all communication is enacted exclusively via I2C, utilizing our handy Qwiic system so no soldering is required to connect it to the rest of your system. However, we still have broken out 0.1”-spaced pins in case you prefer to use a breadboard.
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Product
Integrated Board Power Management Functions For The Forward Thinking Engineer
Power Manager II
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*Up to 12 differential voltage sensors with immunity to noise on ground plane*Voltage trimming to within 1%*Ruggedized CPLD with up to 48 macrocells for sequencing and supervisory signal logic*Large operating power supply range (3.3 V + 20% to 3.3 V -15%)*Up to 4 High-Voltage MOSFET Driver Outputs*Voltage Measurement with 10-bit ADC through I2C*Up to 8 On-chip DACs for Margining and Trimming
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Product
Engine Control
StepGenerator4
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*4-axis stepper motor control *Clock and direction signals *Speed up to 100,000 steps / s Positioning range +/- 2,147,483,647 steps *Simple ASCII commands via the serial interface *I2C adapter (master) for controlling external actuators / sensors *40-pin DIP package PCB (600mil / 19mm x 52mm).
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Product
High Speed Digital Analog
ITA
The Automatic Test Equipment is designed to provide R&D and the Production floor with a high quality, reliable and easy to use Test Station comprised of COTS equipment from industry leading instrument manufactures. The measurement switching has low thermal offset allowing for micro volt measurements. The switching also accommodates both stimulus and measurement up to 5 Amps. Also to provide High Speed and Static Digital Stimulus and Response that covers LVDS, 3.3V, TTL, CMOS and Industrial logic families. For Serial communications there are SPI, I2C, RS232/485, USB and Ethernet. The system has nine programmable DC power supplies that are capable of powering both the UUT and the UUT interface separately. The system can interface with a variety of UUT’s via an ITA. Each system comes with the Imperial Test Executive, National Instruments TestStand, CVI, LabView and .NET Runtime.
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Product
SIMRC - 8-Channel 2-Pole Multiplexer
1020-R-8-2-5/1D
Multiplexer Module
Our small format embedded switching (SIM relay) cards offer a choice of switching configurations using low cost industry standard SIM connectors. They free the designer from the detail of routing complex switching circuits, you may select from a wide range of cards using the built in RS-232 and I2C interfaces. These low-cost embedded switching cards are intended to be mounted on to a simple motherboard. They may be used to construct very high density switching networks. SIM based switching cards also allow for very simple in-field maintenance.
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Product
Lightning "Emulator" Shield
SEN-39002
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Arduino shield, ideal for AS3935 lightning sensor development. The lightning "emulator" generates a RF signal that mimics lightning strikes. This board is in an Arduino Uno form factor, and only uses GPIO and I2C, so can be stacked on many form factors (developed on an Uno and Mega).
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Product
Open Standard Module (OSM)
ROM-2860
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Advantech ROM-2860 OSM 1.1 Computer-on-Module is powered by Qualcomm QCS6490/5430 SoC which includes up to Arm v8 Cortex® in combination with Andreo GPU 643 and Andreo VPU 633 graphics engine. It provides PCIe, USB 3.2, Giga Ethernet, MIPI-CSI, I2C, SPI, GPIO, PWM and eDP, DP, MIPI-DSI display for embedded applications.
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Product
I²C/SPI Interface Device
Interface
The I²C/SPI Interface Device is a master or slave interface for inter-integrated circuit (I²C), or master interface for serial parallel interface (SPI) devices. With plug-and-play USB connectivity, the I²C/SPI Interface Device is a portable solution to communicate with consumer electronics and integrated circuits. The I²C/SPI Interface Device can be physically located more closely to I²C/SPI devices than PCI interfaces, reducing I²C bus length and minimizing noise problems. The I²C/SPI Interface Device supports I²C rates up to 250 kHz and SPI rates up to 50 MHz, and it also includes eight general-purpose digital I/O lines for a variety of applications, such as configuring the address of I²C devices or toggling LEDs.
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Product
µModule Isolated Transceivers
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Analog Devices µModule (micromodule) isolated transceivers provide robust galvanic isolation for digital serial communication interfaces, including SPI, I2C, RS-485/RS-422, RS-232, and USB. Isolation barriers are implemented using Ethernet transformers, coupling capacitors, or embedded inductors. All devices are simple to configure, have very low EMI susceptibility and emissions, and feature high noise immunity to preserve signal integrity.
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Product
GPIB to I2C and 8-Bit Data Bus Interface
Model 4802
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ICS's GPIB to I2C Interface Board is an IEEE-488.2 GPIB and HP-IB compatible interface for I2c and SMB devices.





























