| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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64 pcs
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64 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The NXP PCA8574D,518 is a general-purpose remote I/O expansion device utilizing the two-wire I2C-bus interface. It provides eight quasi-bidirectional ports, a 400 kHz I2C-bus interface, and an interrupt output. The device operates between 2.3 V and 5.5 V, with I/Os that are 5.5 V tolerant.
Each quasi-bidirectional port can be independently configured as an input or an output. The latched output ports offer a 25 mA high current sink drive capability, suitable for directly driving LEDs. The low standby current consumption of 4.5 µA makes it ideal for mobile applications. The PCA8574D,518 includes an active LOW open-drain interrupt output that can signal the microcontroller when an input state changes, reducing the need for continuous polling.
This I/O expander is available in a 16-SOIC surface mount package. Its features make it suitable for applications such as LED signs and displays, keypads, industrial control, and mobile devices.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.15 | $1.15 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The PCA8574D,518 operates between 2.3 V and 5.5 V.
The PCA8574D,518 is available in a 16-SOIC package.
The operating temperature range is -40°C to +85°C.
Yes, the PCA8574D,518 features an active LOW open-drain interrupt output.
The device supports a maximum I2C clock frequency of 400 kHz.
The latched output ports have a 25 mA high current sink drive capability.