Serial Peripheral Interface
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Serial Peripheral Interface is a de facto standard for synchronous serial communication, used primarily in embedded systems for short-distance wired communication between integrated circuits.
SPI memory by Atmel
Fairchild EEPROM using Microwire
Microchip 32-Mbit SQI flash memory
I2C
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I2C, alternatively known as I2C and IIC, is a synchronous, multi-master/multi-slave, single-ended, serial communication bus invented in 1980 by Philips Semiconductors. It is widely used for attaching
Serial Peripheral Interface
…duplex communication. It is sometimes called a four-wire serial bus to contrast with three-wire variants which are half duplex, and with the two-wire I²C and 1-Wire serial buses. Typical applications include interfacing microcontrollers with peripheral chips for Secure Digital cards, liquid crystal…
Microchip MCP23008 8-bit I2C I/O expander in DIP-18 package
STMicroelectronics M24C08-BN6: serial EEPROM with I2C bus
A 16-bit ADC board with I2C interface