PCA9548ABS

PCA9548ABS specifications:

• IC Interface: Supports Standard-mode (100 kHz), Fast-mode (400 kHz), and Fast-mode Plus (1 MHz) IC-bus frequencies.

• Voltage Range: Operates with a supply voltage (VDD) from 2.3 V to 5.5 V.

• Channel Selection: Features 8 bidirectional channels, individually selectable via the I²C-bus.

• Interrupt Handling: Includes a reset input (RESET) that resets the I²C state machine and deselects all channels when activated.

• Low On-Resistance: Typical on-state resistance (Ron) of 20 Ω, ensuring minimal voltage drop across channels.

• Package: Available in a 24-terminal HVQFN24 package.

• Operating Temperature: Designed to function within an ambient temperature range of -40°C to +85°C.

• ESD Protection: Equipped with Electrostatic Discharge (ESD) protection on all pins.

The PCA9548ABS from NXP is an advanced 8-channel IC switch designed to enhance communication flexibility in multi-device systems. Not only does it allow a master device to control multiple slave devices through independently selectable channels, but it also operates seamlessly across different IC speeds, including Standard-mode (100 kHz), Fast-mode (400 kHz), and Fast-mode Plus (1 MHz). Moreover, since it supports a wide supply voltage range from 2.3 V to 5.5 V, it is highly adaptable for various embedded applications. In addition to its versatile voltage compatibility, the low on-resistance (typically 20 Ω) ensures efficient signal transmission while minimizing voltage drops across the switch. Consequently, this enhances performance and reduces power loss, making it an excellent choice for power-sensitive applications. Furthermore, the built-in RESET function plays a crucial role in improving system reliability, as it allows the IC state machine to reset and deselect all channels when triggered.

Beyond its electrical capabilities, the PCA9548ABS is also engineered for durability and ease of integration. For instance, it operates reliably within a broad temperature range of -40°C to +85°C, ensuring suitability for both consumer and industrial environments. Additionally, its HVQFN24 package offers a compact form factor, which is particularly advantageous for space-constrained designs. Furthermore, the device features robust ESD protection, safeguarding against potential damage from electrostatic discharges. Not only does this increase its longevity, but it also enhances system stability.

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