PCA9539DB

Description

The PCA9539DB is a versatile 16-bit I/O expander from Texas Instruments (ti) that features an I2C interface. It's capable of driving LEDs with currents up to 25 mA, with programmable PWM control for adjustable brightness levels. The device has internal power-on reset, hardware address pins for controlling up to four devices on the same bus, and a cascading feature for controlling multiple devices. This I/O expander is suitable for various applications, including LED displays, gaming consoles, industrial automation, and portable devices. Its low-power consumption and small form factor make it an ideal choice for battery-operated or space-constrained systems.

Features

According to the product information, the features of PCA9539DB are: 1. 24-channel I2C-bus controlled 5-bit LED driver capable of driving LEDs with currents up to 25 mA. 2. Programmable PWM control allowing for adjustable brightness levels. 3. Internal power-on reset. 4. Hardware address pins for up to 4 devices on the same I2C-bus. 5. Cascading feature for controlling multiple devices. These features make PCA9539DB a versatile 16-bit I/O expander with I2C interface, suitable for various applications such as LED displays, gaming consoles, and industrial automation.

Package

The package type of PCA9539DB is SSOP-24.

Pinout

The PCA9539DB has a pin count of 24, packaged in an SSOP-24 format.

According to the product description and features, the pins are used as follows:

• 20 GPIO (general-purpose input/output) pins for controlling LEDs
• 2 hardware address pins (A0-A1) for selecting up to 4 devices on the same I2C-bus
• 1 interrupt pin (INT)
• 1 power-on reset pin (POR)
• 24V capable pin (VCC)

The device provides a 5.5V operating voltage and supports currents up to 25 mA per channel for driving LEDs.

Manufacturer

The manufacturer of the PCA9539DB is Texas Instruments (TI), a leading semiconductor company that designs, manufactures, and tests semiconductors and related technologies. TI is a global technology leader in developing innovative solutions for customers' electronics needs.

Applications

The PCA9539DB is suitable for applications like LED displays, gaming consoles, industrial automation, and portable devices that require GPIO expansion and programmable PWM outputs. Its low power consumption and small form factor make it ideal for battery-powered devices. It can also be used in automotive, medical, and consumer electronics applications where I2C interface and 5-bit LED driver are required.