myMectronic
myMectronic

A Premier B2B Part Search

NXP PCA9555D112 16-bit GPIO Expander

The PCA9555 is a 16-bit I2C and SMBus I/O expander with interrupt capability, designed for simple GPIO expansion in industrial and automation applications. It features higher drive capability, 5V I/O tolerance, low power consumption, individual I/O configuration, and multiple package options, including DIP, SO, TSSOP, HVQFN, HWQFN, and SSOP. The device offers open-drain interrupt output, internal power-on reset, noise filtering, and supports clock frequencies up to 400 kHz, making it suitable for various embedded control systems requiring reliable I/O expansion.

Authorized Distributors
Source:Newark
Part No:PCA9555D,112
Stock:1000
Inv Date:06-09-2026
Price: Unit price: $0.884
Buy/RFQ:
Source:DigiKey
Part No:PCA9555D,112
Stock:88
Inv Date:06-09-2026
Price: Unit price: $2.18
Buy/RFQ:
Part No:PCA9555D,112
Stock:2991
Inv Date:06-10-2026
Price: Unit price: $2.17
Buy/RFQ:
Source:Arrow EU
Part No:PCA9555D,112
Stock:10969
Inv Date:06-10-2026
Price: N/A
Buy/RFQ:

NXP PCA9555D112 16-bit GPIO Expander Specifications:

  • Operating voltage range: 2.3 V to 5.5 V
  • I/O Pins: 16, default as inputs
  • Input/output: Configurable ports with high impedance, pull-up resistors
  • Interrupt: Active LOW open-drain output, triggered by input change
  • Clock frequency: 0 Hz to 400 kHz
  • Package options: DIP24, SO24, SSOP24, TSSOP24, HVQFN24, HWQFN24
  • ESD protection: exceeds 2000 V HBM, 200 V MM, 1000 V CDM
  • Power-on reset: Yes, initializes registers to default states
  • Noise filter: on SCL and SDA inputs
  • Tolerant I/O: 5 V
  • Maximum sink/source current: 25 mA per pin (limited externally), total I/O current: 160 mA
  • Body dimensions vary per package, precise dimensions are included in datasheets

Buy the NXP Series PCA9555 GPIO Expander: PCA9555D112

Enhance your embedded system with the NXP PCA9555D112 16-bit GPIO expander, which provides scalable I/O solutions with interrupt capability. It supports I2C/SMBus communication at up to 400 kHz, includes internal reset, noise filtering, and high drive I/O pins capable of 5V tolerance. The device offers multiple package options such as DIP, SO, TSSOP, HVQFN, HWQFN, and SSOP, making integration flexible for various applications. Its low power consumption and robust ESD protections ensure maximum reliability and durability for industrial, automation, and control systems. Order now online for quick deployment and seamless performance.

Buy NXP PCA9555D112 now and experience unmatched reliability and performance in GPIO expansion for industrial and automation systems.

Frequently Asked Questions

Where can I buy NXP PCA9555D112?

You can click on the BUY or RFQ button to purchase PCA9555D112 from an authorized NXP distributor.

How do I troubleshoot issues or seek technical support for part PCA9555D112?

You can download the PCA9555D112 datasheet or visit the NXP website for support.

Who is the manufacturer of PCA9555D112?

NXP

NXP Part List

Browse and search other NXP parts, locate datasheets and stock

Sponsored by