| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
|
2,000 pcs
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2000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | 2026-02-16 21:33:16 |
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| AEC Qualified | |
| Automotive Grade | |
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| Current | |
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| Industrial Grade | |
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| Interrupt Output | |
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| Medical Grade | |
| Military Grade | |
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| Tape & Reel | |
| Voltage |
The PCA9539AHF,128 is an integrated circuit IO expander manufactured by NXP Semiconductors. It features 16 input/output ports and supports I2C and SMBus communication protocols operating at a clock frequency of 400 kHz. The device is designed for applications requiring additional I/O expansion in embedded systems, industrial automation, and consumer electronics.
The IC is packaged in a 24-pin WQFN package, suitable for surface mounting on printed circuit boards. It operates within a voltage range from 1.65 V to 5.5 V, making it compatible with various power supply configurations. The device can source or sink up to 25 mA per I/O pin, providing flexibility for driving different loads.
This IO expander is used in systems where additional digital I/O lines are needed, such as controlling LEDs, switches, or other digital peripherals. Its support for standard I2C and SMBus interfaces allows easy integration with microcontrollers and other digital devices, facilitating scalable and efficient system design.
| 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 from 1.65 V to 5.5 V.