| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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2,367 pcs
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2367 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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| Automotive Grade | |
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| Voltage |
The PCA9542A is a 1-of-2 bidirectional translating multiplexer designed for I2C-bus communication. It allows a single upstream I2C-bus to fan out to two downstream channels, with only one channel selected at a time via a programmable control register. This device supports voltage level translation between different bus voltages, such as 1.8V, 2.5V, 3.3V, and 5V parts, without additional protection.
Key features include two active LOW interrupt inputs (INT0, INT1) and an active LOW interrupt output (INT). It has 3 address pins, enabling up to 8 devices on the I2C-bus. The multiplexer channels are deselected upon power-up, and it supports hot insertion. The operating supply voltage range is from 2.3V to 5.5V, and all I/O pins are 5V tolerant. The device supports a clock frequency of up to 400 kHz.
This component is available in a 14-SOIC package and is designed for surface mounting. Its ESD protection exceeds 2000V HBM and 1000V CDM, and latch-up testing exceeds 100mA per JESD78.
The PCA9542A is suitable for applications requiring flexible I2C bus management and voltage level translation in embedded systems.
| Qty | Low | High |
|---|---|---|
| 1+ | $6.39 | $6.39 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operating supply voltage range is 2.3 V to 5.5 V.
The PCA9542AD,118 is available in a 14-SOIC (0.154", 3.90mm Width) package.
The device supports a clock frequency of up to 400 kHz.
Yes, it allows voltage level translation between 1.8 V, 2.5 V, 3.3 V, and 5 V buses.
It features two active LOW interrupt inputs (INT0, INT1) and one active LOW interrupt output (INT).