Texas Instruments

PCA9517DR

The PCA9517DR is a 3-wire I2C bus multiplexer from Texas Instruments. It is designed to allow multiple I2C devices to share the same I2C bus, which can help to reduce the number of I/O pins required on a microcontroller or other system.

Here is a description of the PCA9517DR, along with its features and potential applications:

Description:

The PCA9517DR is a bus multiplexer that allows multiple I2C devices to share the same I2C bus. It has a 3-wire interface, consisting of a serial clock line (SCL), a serial data line (SDA), and a multiplexer select line (SCS). The SCS line is used to select which I2C device is connected to the bus at any given time.

Features:

• 3-wire I2C bus interface
• Supports up to 8 I2C devices on the same bus
• Supports standard mode I2C bus speeds of up to 100 kbps
• Active low multiplexer select input (SCS)
• Small package size (6-pin SOT-23)

Applications:

The PCA9517DR can be used in a variety of applications where multiple I2C devices need to share the same I2C bus. Some potential applications include:

• Embedded systems with multiple I2C devices
• Industrial control systems
• Automotive systems
• Consumer electronics
• Any application where space is limited and multiple I2C devices need to share the same bus

Overall, the PCA9517DR is a useful component for systems that require multiple I2C devices to share the same bus, as it can help to reduce the number of I/O pins required on a microcontroller or other system.