The PCA9545A/45B/45C is a four-channel bidirectional I2C switch with interrupt logic and reset. It supports voltage level translation among 1.8 V, 2.5 V, 3.3 V, and 5 V systems, making it suitable for mixed voltage environments. Features include flexible channel selection via I2C, active LOW interrupt inputs, active LOW reset, and power-up default deselected channels. The device offers low Ron switches, robust ESD protection, and supports hot insertion with a wide operating voltage range of 2.3 V to 5.5 V, suitable for various digital communication applications.
On-State Resistance (Ron): 5 Ω at Vop = 3.6 V, 7 Ω at Vop = 2.3 V
Voltage Level Translation: Supports 1.8 V, 2.5 V, 3.3 V, 5 V
Power-On Reset: Internal reset, deselects all channels on power-up
ESD Protection: >2000 V HBM
Operating Temperature: -40°C to +85°C
Package Options: HVQFN20, TSSOP20, SO20
Control Register: Read/write via I2C; channel enable/disable
Built-in Interrupt Logic: Detects and reports device interrupts
Soldering Compatibility: Reflow, wave, with recommended PCB footprints
Buy the Buy NXP PCA9545A Part Number PCA9545APW118 Online
Purchase the NXP PCA9545A PCA9545APW118 online today and optimize your digital communication system. This four-channel I2C switch features interrupt logic, reset capability, and voltage level translation, making it ideal for complex, multilevel voltage environments. Its wide operating voltage range from 2.3 V to 5.5 V ensures compatibility with various devices, supporting hot insertion and providing robust ESD protection. Easy to integrate with multiple package options, the PCA9545A ensures reliable operation in industrial, consumer, and embedded systems, offering efficient control and enhanced system performance.
Order your NXP PCA9545A PCA9545APW118 today and enhance your I2C system with reliable four-channel switching, voltage translation, and robust interrupt management.
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