NXP Semiconductors

GPIO Expanders

NXP Semiconductors' GPIO expanders offer more pins for users' microcontrollers

Image of NXP Semiconductor's GPIO ExpandersNXP Semiconductors' industry-leading GPIO expanders provide 4, 8, 16, 24, or 40 general purpose I/O pins for the CPU via the I2C bus to help designers reduce board space and complexity and simplify software development time for lower overall system cost.

  • Robust performance from the I2C inventors: rock solid performance and specification conformance eliminates miscommunication and system hang up issues 
  • Broadest portfolio: complete line of industry-standard and special-function devices simplifies procurement and minimizes qualification costs with a single supplier
  • Differentiated devices: help the users' systems stand out in the market
    • Lowest I2C bus power supply voltage down to 0.8 V eliminates level translation
    • Smallest, thinnest packages available save space: 2 mm x 2 mm x 0.35 mm 24-pin land grid array
    • Agile I/O GPIO includes features to eliminate external components like pull up resistors, open drain outputs, output drive control, and input latches to permit faster software development and more robust firmware performance

App Note: AN11496 Agile I/O Devices Electrical Characteristics
Selector Guide: I2C Selector Guide 2016

Image of NXP Semiconductor's GPIO Expanders Diagram

GPIO Expanders

ImageManufacturer Part NumberDescriptionInterfaceOperating TemperatureAvailable QuantityPriceView Details
IC XPNDR 1MHZ I2C 32HUQFNPCAL6524HEAZIC XPNDR 1MHZ I2C 32HUQFNI2C-40°C ~ 85°C45606 - Immediate$1.89View Details
IC XPND 400KHZ I2C SMBUS 24HWQFNPCAL6416AHF,128IC XPND 400KHZ I2C SMBUS 24HWQFNI2C, SMBus-40°C ~ 85°C45300 - Immediate$1.38View Details
IC XPND 400KHZ I2C SMBUS 16HVQFNPCAL6408ABSHPIC XPND 400KHZ I2C SMBUS 16HVQFNI2C, SMBus-40°C ~ 85°C19704 - Immediate$1.30View Details
IC XPNDR 100KHZ I2C SMBUS 8XQFNPCA9570GMHIC XPNDR 100KHZ I2C SMBUS 8XQFNI2C, SMBus-40°C ~ 85°C38 - Immediate$0.67View Details
IC XPND 400KHZ I2C SMBUS 24TSSOPPCA9555APW,118IC XPND 400KHZ I2C SMBUS 24TSSOPI2C, SMBus-40°C ~ 85°C8009 - Immediate$1.70View Details
IC XPNDR 1MHZ I2C 56HVQFNPCA9698BS,118IC XPNDR 1MHZ I2C 56HVQFNI2C-40°C ~ 85°C6605 - Immediate$5.98View Details

Development Tools

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
EVAL BOARD FOR OM6275 PCA9698OM6281,598EVAL BOARD FOR OM6275 PCA96980 - ImmediateView Details
EVAL BRD FOR PCA9617A PCAL6416AOM13320,598EVAL BRD FOR PCA9617A PCAL6416A0 - ImmediateView Details
EVAL BOARD FOR PCAL6524OM13526ULEVAL BOARD FOR PCAL65248 - ImmediateView Details
IIC TO GPIO SHIELD V2.0DFR0013IIC TO GPIO SHIELD V2.00 - ImmediateView Details
Published: 2017-02-27

Related Product Highlight

PCAL6524HE I/O Expander NXP’s PCAL6524 is a 24-bit I/O expander that provides remote I/O expansion for most microcontroller families via the Fast-mode Plus (Fm+) I²C bus interface.
1.65 V GPIO Expanders with Agile I/O The NXP Semiconductors family of low voltage GPIO with Agile I/O expands the two wires of the I²C-bus into 8 or 16 general purpose I/O.

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Related Product Training Modules

Introduction to GPIO Expanders A simple, cost-effective way to monitor and control several peripheral microcontroller signals. Review specifications and product offerings from NXP.
I²C Bus Fundamentals Using the I²C Bus are versatile and have require fewer pins on PCB layout and have a wide adoption and multi-master capabilities.