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NXP PCAL9539AHF128 GPIO Expander

The PCAL9539A is a low-voltage 16-bit GPIO expander with interrupt and reset for I2C and SMBus applications. It features flexible GPIO configurations, programmable drive strength, latchable inputs, and internal pull-up/pull-down resistors. The device supports voltage ranges from 1.65 V to 5.5 V, ideal for microprocessor and microcontroller interfacing. It provides a power-on reset, maskable interrupts, and direct LED driving capabilities with low power consumption, making it suitable for sensor, LED, fan control, and power management systems.

Authorized Distributors
Source:Newark
Part No:PCAL9539AHF,128
Stock:5816
Inv Date:06-09-2026
Price: Unit price: $2.25
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Part No:PCAL9539AHF,128
Stock:0
Inv Date:06-10-2026
Price: Unit price: $2.22
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Part No:PCAL9539AHF,128
Stock:0
Inv Date:06-09-2026
Price: Unit price: $0.995
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Part No:PCAL9539AHF,128
Stock:28
Inv Date:06-10-2026
Price: N/A
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NXP PCAL9539AHF128 GPIO Expander Specifications:

  • Voltage Range: 1.65 V to 5.5 V
  • GPIOs: 16 programmable I/O pins
  • Drive Strength: 4 programmable levels
  • Interrupt: Maskable, edge- or level-sensitive, open-drain output
  • Input Type: Latchable and non-latchable inputs
  • Pull-up/Pull-down: Internal resistors, 50 kΩ to 150 kΩ
  • Power consumption: Typical standby current 1.5 pA at 5 V
  • Communication: 400 kHz Fast-mode I2C-bus
  • Package Options: TSSOP24, HVQFN24
  • Reset: Internal power-on and external RESET pin
  • ESD Protection: >2000 V Human Body Model
  • Operating Temperature: -40°C to +85°C
  • Marker: Default all I/Os configured as inputs at power-up
  • Additional Features: Programmable open-drain or push-pull output, input masking, polarity inversion

Buy the Buy NXP PCAL9539A Part Number 128 Online

Get the NXP PCAL9539A low-voltage GPIO expander today from our online store. This 16-bit I2C device offers programmable drive strength, maskable interrupts, internal pull-up/down resistors, and latchable inputs. Designed for efficient microcontroller interfacing, it supports voltages from 1.65 V to 5.5 V, making it suitable for power management, sensors, LEDs, and fan control applications. Its compact packages, low power consumption, and robust features ensure reliable integration into your electronic projects for improved performance and system flexibility.

Order your NXP Series PCAL9539A GPIO Expander with Interrupt and Reset today and enhance your system's I/O capabilities with reliable, low-power performance.

Frequently Asked Questions

Where can I buy NXP PCAL9539AHF128?

You can click on the BUY or RFQ button to purchase PCAL9539AHF128 from an authorized NXP distributor.

How do I troubleshoot issues or seek technical support for part PCAL9539AHF128?

You can download the PCAL9539AHF128 datasheet or visit the NXP website for support.

Who is the manufacturer of PCAL9539AHF128?

NXP

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