| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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5,000 pcs
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5000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | 2026-02-16 21:33:16 |
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The PCAL9539AHF,128 from NXP Semiconductors is a 16-bit General Purpose Input/Output (GPIO) expander designed for I2C-bus and SMBus applications. It provides a flexible solution for systems requiring additional I/Os, such as ACPI power switches, sensors, push buttons, and LED control.
This device operates within a wide voltage range of 1.65 V to 5.5 V, allowing it to interface with modern microprocessors and microcontrollers. Key features include programmable output drive strength, latchable inputs, programmable pull-up/pull-down resistors, and a maskable interrupt. The expander supports a clock frequency of up to 400 kHz and offers both open-drain and push-pull output types.
The PCAL9539AHF,128 is supplied in a 24-WFQFN Exposed Pad package, designed for surface mounting. It has a low standby current consumption of 1.5 µA and features a power-on reset function. The device also includes an open-drain interrupt output that signals changes in input states to the system master.
With 16 I/O pins, this expander is suitable for various embedded applications where efficient I/O expansion is needed. Its design facilitates integration into compact systems, offering a balance of functionality and low power consumption.
| 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 1.65V to 5.5V.
It is supplied in a 24-WFQFN Exposed Pad package.
The operating temperature range is -40°C to 85°C.
The RoHS status is RoHS3 Compliant.
It has 16 I/O pins.
It uses the I2C interface.