LE79Q2281DVC

The LE79Q2281DVC is a string of eight registers with a shift-in/shift-out serial port from I2C interface, also known as I2C SIPO (serial in/parallel out). It facilitates quick and easy serial input/output of data between a microcontroller or processor to other peripherals. Examples of applications include shifting display data among LCD, OLED and EPD, providing a software-based backplane for display frames, transmitting multiplexed display data.

The device is compliant with the SDA (Serial Data) and SCL (Serial Clock) pins defined by I2C standards and including stretched clock input, allowing to adjust serial data communication speeds up to 100kHz. Furthermore, the device communicates using traditional I2C protocols, allowing communication speeds of up to 1MHz. The high speed at which I2C communication works allows for more efficient data transmission and improved responsiveness.

The LE79Q2281DVC is versatile, making it ideal for various applications. Examples of such applications include digital signal processing, voice recognition, analog-to-digital converters, and motor control. Whether dealing with data transmissions between various components, or data manipulation in real-time scenarios, the device provides a simple, low-power solution for any type of communication-related task.

LE79Q2281DVC working principle involves two data lines: the SDA (Serial Data Line) and the SCL (Serial Clock Line). The I2C SIPO offers in-system debugging and allows connection in isolation mode, as well as master and slave modes. Aside from setup and temperature stability settings, no other settings are required.

Using the SCL line the controller acknowledges the SDA\'s activity and then requests data and sends acknowledgement when done. This principle is commonly known as I2C\'s Multiple-Master Synchronous Serial Bus Arbitration, which allows for the data exchange between multiple slaves connected to the same bus.

The interaction follows a strict protocol. When both SDA and SCL are active, the bus is busy. When both lines are in high state, the bus is in slow mode, which allows several I2C SIPO devices to be connected without conflicts. When the SDA is active while the SCL is inactive, the bus is in fast mode, allowing higher speed data transactions.

The LE79Q2281DVC also provides a power-saving feature, with both slave and master modes operating only when data is actually transmitted. The device has both current-limiting and overtemperature protection, providing consistent stability and low power consumption for a reliable operation.

In short, the LE79Q2281DVC is a versatile shift-in/shift-out 8-bit register from I2C interface, which is suitable for any type of communication, either in multi-master or single-slave configuration. It operates in both busy and fast modes, providing reliable data transmission with low power consumption, consistent stability and reliability.