| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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10,000 pcs
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10000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | 2026-02-16 21:33:16 |
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The PCA9539RPW/Q900J from NXP Semiconductors is a 16-bit General Purpose Input/Output (GPIO) expander designed for I2C-bus and SMBus applications. It provides a simple solution for systems requiring additional I/O pins for devices such as sensors, LEDs, and push buttons.
This device features two 8-bit configuration registers, allowing I/Os to be selected as either inputs or outputs. It includes an open-drain interrupt output that activates when an input state changes, signaling the system master. The PCA9539RPW/Q900J operates over a supply voltage range of 2.3V to 5.5V and supports a maximum clock frequency of 400kHz.
Available in a 24-TSSOP package, the PCA9539RPW/Q900J is suitable for surface mount applications. It offers 5V tolerant I/Os and includes features like power-on reset (POR) and a hardware reset pin for the I2C-bus interface.
Key specifications include 16 I/O bits, a 400kHz clock frequency, and an operating temperature range of -40°C to 125°C. The device supports I2C and SMBus interfaces, making it versatile for various embedded systems.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.15 | $1.15 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The operating voltage range is 2.3V to 5.5V.
The operating temperature range is -40°C to 125°C.
The maximum clock frequency is 400kHz.
It uses I2C and SMBus interfaces.
It provides 16 I/O pins.
Yes, it has an interrupt output.
It is supplied in a 24-TSSOP package.