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Digi-Key is your source for electronic component training. Our application notes provide instructions and recommendations for a variety of products, all of which come directly from the supplier.

Application Notes - I2C
SuppliersTechnologyTitleSource Code
Analog Devices, Inc.I2CAN-661: ADuC814 to ADM1032 via I2C® InterfaceView
Analog Devices, Inc.I2CAN-806: I2C Download Protocol for ADuC70xxBCPZxxI ModelsView
Analog Devices, Inc.I2CAN-840: Code Update via I2C®View
Analog Devices, Inc.I2CAN-895: ADuC702x MicroConverter I2C-Compatible InterfaceView
Energy MicroI2CAN0011: EFM32G I2C Multimaster  
Infineon TechnologiesI2CAP083701: C500 Interfacing SLx 24Cxx I2C-Bus 1View
Infineon TechnologiesI2CAP1602410: C166 Software emulation of the I2C-bus using the General Purpose Timer unit 1  
Infineon TechnologiesI2CAP1602510: C166 Software emulation of I2C-bus using CPU time  
Infineon TechnologiesI2CAP1602610: C166 Software emulation of the I2C-bus using the High-Speed Synchronous Serial Interface  
Infineon TechnologiesI2CAP1604510: C161RI Hardware I2C-bus in slave mode by using polling and interrupt methods  
MaximI2CAN3588: Software I²C Driver for the MAXQ2000 Microcontroller  
MaximI2CAN4267: Proven Implementations of the I²C Bus  
Microchip TechnologyI2CAN1079: Using the C30 Compiler and the I² Peripheral to Interface Serial EEPROMs with dsPIC33FView
Microchip TechnologyI2CAN1096: Using the C30 Compiler to Interface SPI Serial EEPROMs with dsPIC33View
Microchip TechnologyI2CAN1100: Using the C30 Compiler to Interface Serial EEPROMs with dsPIC33FView
Microchip TechnologyI2CAN709: System Level Design Considerations When Using I2C Serial EEPROM Devices  
Microchip TechnologyI2CAN734: Using the PIC Devices' SSP and MSSP Modules for Slave I2C CommunicationView
Microchip TechnologyI2CAN735: Using the PICmicro MSSP Module for I2C CommunicationsView
Microchip TechnologyI2CAN976: Using the MSSP Module to Interface I2C? Serial EEPROMs with PIC16 DevicesView
Microchip TechnologyI2CAN979: Interfacing I2C Serial EEPROMs to PIC18 DevicesView
Microchip TechnologyI2CAN982: Interfacing I2C Serial EEPROMs to PIC10 and PIC12 DevicesView
Microchip TechnologyI2CAN989: Using the MSSP Module to Interface I2C Serial EEPROMs with PIC18 DevicesView
Microchip TechnologyI2CAN991: Using the C18 Compiler and the MSSP to Interface I2C? EEPROMs with PIC18 DevicesView
Microchip TechnologyI2CAN997: Using the C18 Compiler to Interface I2C? Serial EEPROMs with PIC18 DevicesView
NXP SemiconductorsI2CAN10148: 80C51 (8-bit) PCA9564 - I2C-bus controller  
NXP SemiconductorsI2CAN10900: Cortex-M3 (32-bit) FM+ I2C on LPC1300View
STMicroelectronicsI2CAN1782: STR71x I2C Communication with M24Cxx EEPROM  
Texas InstrumentsI2CSLAA377: MSP430 CEC-to-I2C Bridge With the MSP430  View
Texas InstrumentsI2CSLAA382: MSP430 Using the USCI I2C Master  View
Texas InstrumentsI2CSLAA383: MSP430 Using the USCI I2C Slave  View
Texas InstrumentsI2CSLVA302: MSP430 Interface to TPS60250 via I2C Master Software  View
Texas InstrumentsI2CSPNA098A: TMS470 I2C Protocol (Rev. A)  View
Toshiba America Electronic ComponentsI2CAccessing EEPROM using I² BUSView