| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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12 pcs
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12 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The PCA9554A is an 8-bit remote I/O expander that communicates via the I2C interface. It is designed for general-purpose I/O expansion in systems operating from 2.3V to 5.5V.
Key features include an open-drain active-low interrupt output, three hardware address pins for up to eight devices on the I2C bus, and 5V tolerant I/Os. The device has configuration, input, output, and polarity inversion registers. At power-on, all I/Os are configured as inputs with weak pullups.
Available in various packages including SSOP, VQFN, and TSSOP, the PCA9554A supports a 400kHz Fast I2C bus speed. It offers robust ESD protection and high latch-up performance.
| Qty | Low | High |
|---|---|---|
| 1+ | $2.95 | $2.95 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The PCA9554A operates from a 2.3V to 5.5V supply voltage.
The PCA9554A supports a 400kHz Fast I2C bus speed.
The I/Os on the PCA9554A are 5V tolerant.
The PCA9554A is RoHS3 Compliant.
The Moisture Sensitivity Level (MSL) for the PCA9554A is Level 1.
The PCA9554A is REACH Unaffected.