| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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1,875 pcs
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1875 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The PCA9545APW,112 from NXP Semiconductors is a quad bidirectional translating switch designed for I2C-bus applications. It features a single upstream SCL/SDA pair that fans out to four downstream pairs, allowing for flexible channel selection via a programmable control register. This device supports communication between different bus voltages, enabling 1.8 V, 2.5 V, or 3.3 V parts to interface with 5 V parts without additional protection.
Key electrical specifications include an operating supply voltage range of 2.3 V to 5.5 V and compatibility with SMBus standards. The switch supports clock frequencies from 0 Hz up to 400 kHz. It also includes four active LOW interrupt inputs and one active LOW interrupt output, along with an active LOW reset input for recovery from bus issues.
Packaged in a 20-TSSOP, the PCA9545APW,112 is suitable for surface mount applications. It offers 5 V tolerant inputs and supports hot insertion. ESD protection exceeds 2000 V HBM, and latch-up protection exceeds 100 mA, ensuring robust operation in various environments.
| 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 PCA9545APW,112 is supplied in a 20-TSSOP package.
The device supports clock frequencies from 0 Hz to 400 kHz.
Yes, it allows voltage level translation between 1.8 V, 2.5 V, 3.3 V and 5 V buses.