I2C bus

I2C bus

(Inter-IC bus) A two-line, synchronous, serial bus that is widely used to connect chips together on a circuit board. Also called the "I-squared-C bus" and developed by Philips in the 1980s, it is used as a control bus for every variety of chip from sensors to microprocessors. One chip, typically a microcontroller or DSP, functions as a master and initiates requests, and all other chips are slaves that respond to the master. See SPI bus and IPMI.
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One of two selectable I2C bus addresses can be used, allowing two VersaClock 6 generators to be used in the same system without address conflicts.
The I2C bus (which probably already exists in the design), and a little firmware overhead complete the design.
With a single command, the software can poll up to eight devices, reducing MIPS and bandwidth on the I2C bus.
The 3mm x 3mm x 1mm form factor package contains an internal FIFO (first in/first out) 32-samples per axis (X-,Y- and Z-axis) memory buffer which allows the host processor to offload functions and which can prevent data loss due to situations where otherwise the primary processor with have to multiplex data over the same I2C bus as other sensors.
Its application- oriented digital features, controlled via the I2C interface, enable the design of high quality systems; particular attention has been paid to application issues, with the demodulator providing outputs such as RF and IF AGC and noise-free I2C bus for tuner control, to simplify the design of high-quality application boards.
Besides the 14-bit A/Ds, 10-bit A/Ds, and the LCD controller/booster, the H8/38086F MCU offers many other built-in peripheral functions, such as power-on reset (POR), real-time clock (RTC), hardware I2C bus interface, several timers and two serial interface channels.
The firmware is field flashable via a I2C bus so cables can be reflashed while in the host system.
The BH1745NUC from Rohm Semiconductor is a digital color sensor IC with I2C bus interface.
The DI2CM core, which offers an interface between a microprocessor or microcontroller and the I2C bus, is capable of working as a master transmitter or master receiver - based on a working mode, determined by the microcontroller.
The XRP7620 interfaces seamlessly with processor based designs providing unprecedented ease of use through a standard I2C bus while reducing the number of external components to a single capacitor.
The MCU's peripheral set includes a powerful timer function capable of controlling a 3-phase motor, a 5-megabit per second (Mbps) asynchronous serial interface, a 10-MHz clocked serial interface, an I2C bus interface, a 10-bit A/D converter and an 8-bit D/A converter.
amp; BIEL, Switzerland -- IXYS-Clare, a division of IXYS Corporation (NASDAQ:IXYS), announced the immediate availability of the CPC5903, an Optically Isolated I2C Bus Repeater and new addition to the enhanced-communications IC family.