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
Smart Card Reader
UTC-300P-S
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Dual color LED indicator. Memory Card: Synchronous 2-line, 3-line and I2C interface. CPU Card: Comply with ISO7816-1,2,3,T=1 and T=0 protocol. USB connection to UTC.
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Product
Open Standard Module (OSM)
ROM-2620
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Advantech ROM-2620 OSM 1.1 Computer-on-Module is powered by NXP i.MX 8ULP SoC which includes up to 2 Arm Cortex-A35 cores in combination with one Cortex-M33 real timeprocessor and Vivante GC7000 nanoULTRA/GC328 graphics engine. It provides USB2.0, Fast Ethernet, MIPI-CSI, I2C, SPI, GPIO, PWM and MIPI DSI display for embedded applications
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Product
ARM 9 System on Module
MS 1515
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- Processor: LPC3250 processor with ARM 9 core running at 266 MHz SDRAM- Memory: DDR2 256 MB (scalable to 512 MB)- Flash Memory: NAND flash 512 MB- Display & Graphics: Programmable color LCD controller supports up to a TFT interface- Touch screen: Integrated touch screen controller- Network Support: 10/100 Base-T Ethernet PHY- PC Interface: One USB 2.0 high-speed On-the-Go interface- Serial Interfaces: Up to four external UARTs- + CAN 2.0B controller- + Three I2C ports- + Three SPI ports- GPIO: Programmable I/O depending on peripheral requirements- Mechanical: 60 mm wide x 60 mm long x 5.4 mm high
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Product
SparkFun Qwiic Mux Breakout - 8 Channel (TCA9548A)
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Do you have too many sensors with the same I2C address? Put them on the SparkFun Qwiic Mux Breakout to get them all talking on the same bus! The Qwiic Mux Breakout enables communication with multiple I2C devices that have the same address that makes it simple to interface with. The Qwiic Mux also has eight configurable addresses of its own, allowing for up to 64 I2C buses on a connection. To make it even easier to use this multiplexer, all communication is enacted exclusively via I2C, utilizing our handy Qwiic system.
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Product
SparkFun Digital Temperature Sensor Breakout
AS6212 (Qwiic)
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This SparkFun Qwiic Digital Temperature Sensor Breakout provides a combination of high temperature accuracy with excellent low power consumption using the AS6212 digital temperature sensor from ams AG. The sensor measures temperature data up to ±0.2°C; accuracy over a wide range (-40°C; to +125°C;) and consumes an average of 6µA in normal operation (0.1µA in standby). The AS6212 communicates via I2C and has eight available I2C addresses selected by a pair of solder jumpers on the board. The breakout routes the I2C interface to a pair of Qwiic connectors to work with our plug-and-play Qwiic Ecosystem but also routes the bus and other pins to a standard 0.1"-spaced PTH header for users who prefer a soldered connection.
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Product
Temperature & Humidity Sensor Breakout Board
Si7021
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Sensor for Silicon labs has ± 3% relative humidity measurements with a range of 0–80% RH, and ±0.4 °C temperature accuracy at a range of -10 to +85 °C. Great for all of your environmental sensing projects. It uses I2C for data transfer so it works with a wide range of microcontrollers.
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Product
Grid-EYE® Infrared Array Sensors
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Panasonic Industrial Devices Sales Company of America
Panasonic Grid-EYE® 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. Grid-EYE features compact SMD design using MEMS thermopile technology.
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Product
Silicon Oscillators
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Analog Devices silicon oscillators are frequency programmable via pin-strapping, or through the resistor connection or serial interface (SPI or I2C). These solid-state clocks are well-suited for general-purpose usage, such as PGAs, ASICS, microprocessors, or UARTS, and they operate from 1 kHz to 170 MHz. Silicon oscillators are also ideal switching regulator clocks as they provide synchronization and EMI reduction (via spread spectrum).
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Product
Dual Band Block Up-Converter
DBUC Series
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*Connectorized Package *Wide Choice of Frequency Ranges *Dual Band *Integrated Filters *Gain Control *CAN, RS-232, I2C, or SPI Control *Internal / External References *Low Power Consumption *Low Phase Noise *Low Spurs
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Product
TTL/I2C/SPI* Expansion Kit
OP-SB5GL
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OP-SB5GL is the interface expansion kit that has a port to measure RS-232C(V.24) and a port to measure the TTL / CMOS signal level communications. The port for TTL / CMOS supports the measurement of TTL / CMOS level communications that power supply system is from 1.8V to 5V. It is suitable for monitoring the communications between the LSI and the interface IC on the printed circuit board by directly probing into the lines. It supports the protocol of not only UART and HDLC but also I2C and SPI* on monitoring and simulating.
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Product
Power Monitors
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Analog Devices’ power monitoring amplifiers provide an integrated solution for digital current and voltage measurement via an on-chip, 12-bit analog-to-digital converter (ADC), communicated through an I2C interface. Leveraging ADI’s precision analog design techniques, ADI’s products are twice as precise as competing devices, offering best-in-class accuracy (<±0.8%). The power monitors complete the industry’s only monitor and sequencer family to deliver <±1% accuracy for 2 to 12 supplies.
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Product
Hall Sensor Board with I2C Interface
050-280
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Version: +24V/60A -24V/60A -5,2V/90A -2V/25A The Hall-Sensor Board is the right accessory for your system in combination with the Elma SysMon. It's possible to measure up to 4 currents and to monitor them with the Elma SysMon 3 Gen.
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Product
SparkFun Pressure Sensor Breakout
MS5803-14BA
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This is the MS5803-14BA Pressure Sensor Breakout, a high resolution pressure sensor with both an I2C and SPI interface. This MEMS pressure sensor measures the absolute pressure of the fluid around it which includes air, water, and anything else that acts like a viscous fluid. Depending on how you interpret the data, you can determine altitude, water depth, or any other tasks that require an accurate pressure reading. What makes the MS5803-14BA unique is the the gel membrane and antimagnetic stainless steel cap that protects against 30 bar water pressure.
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Product
Computing Power VRM/IMVP
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Renesas' computing power products are featured with high accuracy up to ± 0.5%, parallel/serial VID supporting, phase dropping, CCM/DEM mode transition for energy saving, and I2C function. Our multiphase modulation technology comes from our experience in analog multiphase controllers used in computing.
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Product
Sensirion SHT31-DIS-B Humidity and Temperature Sensor Breakout Board
SEN-37002-H
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Breakout board for the Sensirion SHT31-DIS-B. This sensor is an extremely accurate digital (I2C interface) temperature and humidity sensing device, with +/-0.2C temperature and +/-2% humidity accuracy typical. These specs far exceed the accuracy of ICs that came before it, including the HTU2x and SHT1x series, and improves upon the success of the SHT2x that came before it. In addition, the SHT31-DIS-B has a wide input voltage range of 2.4V-5.5V and includes temperature isolation and airflow cutouts as recommended for the optimal operation. Finally, in the case of environmental changes that could cause light condensation, the SHT31-DIS-B has a built-in heater to burn off any condensate.
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Product
SIMRC - 16-Channel 2-Pole Multiplexer
1020-R-16-2-5/1D
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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
Bridging And I/O Expansion Versatility. Rapid Hardware Acceleration For Improved Signal Control.
MachXO2
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*Up to 256 kbits of user Flash memory and up to 240 kbits sysMEM™ embedded block RAM*Up to 334 hot-socketable IOs that avoid excess leakage*Programmable through JTAG, SPI, I2C or Wishbone*TransFR feature allows in-field design update without interrupting equipment operation*Programmable sysIO™ buffer supports LVCMOS, LVTTL, PCI, LVDS, BLVDS, MLVDS, RSDS, LVPECL, SSTL, HSTL and more
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Product
DataComm
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SCHILLER AUTOMATION GmbH & Co. KG
With ever-growing performance, accuracy, and precision required by 112G/800G PAM4 solutions, Wilder has designed a robust HCB and MCB fixtures to support OSFP-XD, QSFP-DD, OSFP and SFP-DD compliance testing. In addition, CMIS_GUI Software provides: Displays of many of the settings and Controls in the Module including Lane States, Module Power States and Optical Power. Alarms and Warnings for Module Temp and Vcc and Optical Power Controls for Module Power, Margins, and read access to Descriptors and Data Path Configuration. Direct Read/Write access to the I2C and CMIS Memory Map as well Scripts that directly access the CMIS Memory Map Registers.
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Product
Bus Analyzer, Monitor, Debugger & Programmer
BusPro-I™
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The BusPro-I has all the power, flexibility, and features you need to monitor and debug the I2C bus circuitry on your board. The BusPro I2C can be used to monitor and log I2C bus traffic in real-time, generate I2C transactions to communicate with peripheral components on the bus, and in-system program I2C compatible EEPROMs.
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Product
720W to 1000W - Single Output
CPFE1000 Series
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*Universal Input*MIL STD 461/462D CE102EMC*Baseplate cooled, no fan required*I2C Interface*High Efficiency*Conformal Coated
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Product
Sensirion SHT31-DIS-B Humidity and Temperature Sensor Breakout Board
SEN-37002-F
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Breakout board for the Sensirion SHT31-DIS-F with a built-in permeable membrane filter. This sensor is an extremely accurate digital (I2C interface) temperature and humidity sensing device, with +/-0.2C temperature and +/-2% humidity accuracy typical. These specs far exceed the accuracy of ICs that came before it, including the HTU2x and SHT1x series, and improves upon the success of the SHT2x that came before it. In addition, the SHT31-DIS-B has a wide input voltage range of 2.4V-5.5V and includes temperature isolation and airflow cutouts as recommended for the optimal operation. Finally, in the case of environmental changes that could cause light condensation, the SHT31-DIS-B has a built-in heater to burn off any condensate.
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Product
SparkFun GPS Breakout
NEO-M9N, U.FL (Qwiic)
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The SparkFun NEO-M9N GPS Breakout 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 with ~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
Function Generators
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Respective dual channels function/arbitrary waveform generator. Sine wave output up to 160MHz, full-band resolution of 1μHz. Pulse waveform up to 50MHz (or 40MHz), adjustable time of rising, falling and duty ratio. Sampling rate of 500MSa/s and vertical resolution of 16bit. 6-bit high-precision frequency meter compatible with TTL level signal. Arbitrary wave storage of 8~32M points, 7GB non-volatile waveform storage. Multi modulation function::AM,FM,PM, ASK,FSK,PSK, BPSK, QPSK,OSK,PWM, QAM, SUM . 16bit digital arbitrary wave (TTL level) DARB. 16th Harmonic Generation Function. Protocol output: I2C, SPI, UART (TTL level). 8 Inch high-resolution TFT color LCD,WVGA(800×480). Standard interface: USB Host, USB Device, LAN, 10MHz clock source input/output. Frequency sweep and burst output. Easy-to-use multi-functional knob and numeric keypad
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Product
Ambient Light Sensors
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Renesas' ambient light sensors optimize display backlighting, enhance energy efficiency, and improve user experience with ultra-low light sensitivity, low power consumption, and precise spectral response. Our offerings include light-to-digital sensors with IR blocking filters and I2C interfaces, and light-to-analog solutions integrating photodiodes and amplifiers. Designed for automotive, industrial, and medical applications, these sensors deliver reliable performance even in demanding environments.
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Product
ContactLAB Spy
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Laboratory class spy and protocol analyzer for easy, non-intrusive capture and analysis of communication between contact cards and readers using SWP, ISO 7816, SPI and I2C protocols.
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Product
Smart Card Reader
UTC-510P-S01E
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Memory card -Synchronous 2-line, 3-line and I2C interface. CPU card -Complies with ISO7816-1,2,3,T=1 and T=0 protocol. Reliability: 200,000 cycles.
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Product
Hall Sensor Board with I2C Interface
046-322
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Version: +5V/15A +12V/5A -5V/15A -12V/5A The Hall-Sensor Board is the right accessory for your system in combination with the Elma SysMon. It's possible to measure up to 4 currents and to monitor them with the Elma SysMon 3 Gen.
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Product
I2C Tools
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A set of open-source Linux user-space utilities used to interact, debug, and test I2C/SMBus peripheral devices without writing code.
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Product
SparkFun High Precision Temperature Sensor
TMP117 (Qwiic)
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The SparkFun Qwiic TMP117 breakout is a high precision temperature sensor equipped with an I2C interface. It outputs temperature readings with high precision of ±0.1°C across the temperature range of -20°C to +50°Cs with no calibration and a maximum range from -55°C to 150°C. The SparkFun High Precision Temperature Sensor also has a very low power consumption rate which minimizes the impact of self-heating on measurement accuracy. 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
MIPI I3C Sensor Controller
I3C
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The main purpose of MIPI I3C is to standardize sensor communication, reduce the number of physical pins used in sensor system integration and support low-power, high-speed and other critical features supported by I2C and SPI.





























