The PCA9554A is an 8-bit CMOS GPIO expander for I2C-bus/SMBus applications, featuring higher drive capability, 5 V I/O tolerance, low current consumption, and configurable input/output pins. It provides 8 GPIO, an interrupt output, and supports clock frequencies up to 400 kHz. Ideal for expanding I/O for sensors, LEDs, switches, and fans, it offers flexible register control with active low interrupt, polarity inversion, and power-on reset, with various package options and a robust design suitable for industrial environments.
Operating power supply voltage range of 2.3 V to 5.5 V
I/O pin voltage tolerance: 5 V
Clock frequency: up to 400 kHz
Input/Output configuration and polarity inversion registers
Active LOW interrupt output
Input port reflects external signals; output port controls pins with default inputs
Various packages include SO16, SSOP16, SSOP20, TSSOP16, HVQFN16
Power-on reset initializes registers to default states
Maximum supply current: 85 mA
Standby current: 550-700 nA
Input leakage current: typically -1 to +1 nA
Temperature range: -40°C to +85°C
Electrostatic protection exceeding 2000 V HBM
Buy the NXP PCA9554A – Reliable GPIO Expander for Industrial Applications
Experience seamless I2C-GPIO expansion with the NXP PCA9554A, a reliable and power-efficient device suitable for industrial automation, sensor integration, and LED control. Offering 8 configurable pins, active low interrupt, and wide voltage tolerance, it simplifies system design and enhances performance. Delivered in multiple compact packages, it ensures easy integration into various industrial environments. Buy online today to upgrade your automation system with a robust, high-performance GPIO expander designed for demanding applications and long-term reliability.
Get NXP PCA9554A today—built for reliable I2C GPIO expansion with configurable inputs, interrupt support, and low power consumption for industrial applications.
Frequently Asked Questions
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