Select site:
- English
I2C general purpose I/O
As Philips Semiconductors we invented the I²C bus, leading the world in these bus devices. Now as NXP we continue our leading position to offer you a vast portfolio of I²C logic products used for I²C-bus communication and protocol conversion.
Our I²C logic products are ideal for many systems using SMBus, AdvancedTCA (ATCA) IPMI, and PMBus. You can also choose from a comprehensive offering of other semiconductor ICs with I²C-bus interfaces.
ICB fab transfer information
The ICB fab in Boeblingen Germany will be closed at the end of the year and many of the general purpose I²C-bus GPIO / LED blinkers / dimmers and 16C UARTs will be transferred to a new fab. The transfer process is underway and going smoothly.
For more information click here.
Portfolio diagram
Key applications
The I²C-bus is used in virtually every application. I²C I/O expanders are used for keyboard/pad input or controlling LED status lights. Adding UART / IrDA functionality, to a cellular phone for example, is simple via the I²C bus with a choice of bridge ICs.
For numerous cellular handsets, LED blinkers and dimmers can control keypad, fun lighting, and other status LEDs. These ICs can also be used for more advanced status or illumination control while offloading the host processor in LCD displays. LCD segment drivers or LCD matrix drivers with an I²C interface are ideal for displays in cordless telephone handsets.
I²C serial EEPROM can be used to store preset information in an MP3 player or large LCD display, where PAL or NTSC settings during manufacture are set using I²C DIP switches. For environmental sensing I²C temperature sensors are used to monitor local temperatures. This is particularly important in wireless basestations, where I²C repeaters / hubs / extenders are also used, to isolate capacitance from the backplane.
Below are just some of the applications where you can use the different categories of I²C-bus devices.
- Basestation - discretes focus / Transceiver board
- Digital media adapters
- Nexperia personal media player
- PCI analog/DVB-T stereo TV receiver
- UMA-Enabled GSM/GPRS/EDGE VAS Phone (6100)