Product Overview: PCA9544APW,118 from NXP Semiconductors

The PCA9544APW,118 is a versatile and high-performance 4-channel I²C-bus switch with interrupt logic, manufactured by NXP Semiconductors. This integrated circuit (IC) provides a seamless interface for a multi-master I²C-bus system, where multiple I²C devices can communicate with a single I²C master. The PCA9544APW,118 is designed to effectively manage I²C bus traffic and signal routing, ensuring reliable communication between I²C peripherals.

Key Features

• Channel Selection: The device offers 4 selectable I²C-bus channels, enabling connection to multiple I²C devices without bus contention.
• Interrupt Function: Each channel has an associated interrupt input which can be monitored by the master, facilitating prompt response to peripheral events.
• High Compatibility: It is compatible with I²C-bus specification and supports standard (100 kHz), fast (400 kHz), and fast-plus (1 MHz) I²C-bus modes.
• Low Standby Current: The PCA9544APW,118 is designed for low power consumption, with a standby current of just 2.5 µA, making it suitable for battery-powered devices.

Applications

The PCA9544APW,118 is ideal for various applications that require multiple I²C devices or sensors to be connected to a single I²C bus. It is commonly used in:

• Servers and networking equipment
• Consumer electronics
• Industrial control systems
• Medical equipment
• Telecommunications infrastructure

Technical Specifications

• Package: TSSOP16 (Thin Shrink Small Outline Package, 16 leads)
• Supply Voltage: Operating between 2.3V and 5.5V, accommodating a variety of logic levels and providing design flexibility.
• Operating Temperature: Ranging from -40°C to +85°C, ensuring reliability across diverse environments.

Ordering Information

The PCA9544APW,118 is available in a tape and reel format, suitable for automated assembly processes. The '118' suffix indicates the packaging option for this specific part number.

With its robust feature set and NXP's commitment to quality, the PCA9544APW,118 is an excellent choice for systems requiring a multi-channel I²C-bus interface.