The PCA9545A/45B/45C is a versatile 4-channel I2C-bus switch with interrupt logic and reset capabilities. It supports voltage level translation, hot insertion, and power-up reset, making it suitable for complex multi-voltage systems. The device features active LOW interrupt inputs and an active LOW reset input, with up to 4 address pins for system scalability. It provides glitch-free channel switching, low Ron switches, and protections against ESD and latch-up. Its compact packages include HVQFN20, TSSOP20, and SO20, optimized for surface mounting and thermal management.
Support for I2C-bus, SMBus standards operating up to 400 kHz.
Voltage supply range from 2.3 V to 5.5 V, Vpp from 2.7 V to 5.5 V.
Active LOW interrupt inputs with external pull-ups, one active LOW interrupt output.
Support for hot insertion, low standby current, and glitch-free switching.
Power-on reset ensures default channel deselection at startup.
Pass gates constructed for voltage level translation with maximum Vpp of 5.5 V.
Built-in ESD protection exceeding 2000 V HBM, latch-up protection over 100 mA.
Package options include HVQFN20, TSSOP20, SO20, optimized for surface mounting.
Maximum junction temperature 125°C, operating temperature from -40°C to +85°C.
Physical dimensions vary per package, with thermal considerations for HVQFN20.
Buy the Buy NXP PCA9545A Part Number PCA9545AD118 Online
Purchase the NXP PCA9545AD118 4-channel I2C switch online today to upgrade your electronic projects with a reliable, versatile, and easy-to-integrate component. This device supports multi-voltage systems, features interrupt logic, reset capabilities, and voltage level translation, making it ideal for complex system designs. Its compact size in HVQFN20, TSSOP20, or SO20 packages ensures easy surface mounting. With rigorous protections, low Ron, and hot insertion support, it provides an excellent solution for scalable, efficient, and robust I2C-bus multiplexing applications.
Order your NXP PCA9545AD118 4-channel I2C switch today and enhance your system's voltage compatibility and reliability with this compact, high-performance device.
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