The PCA9536 is an 8-pin CMOS device offering 4-bit I2C-bus and SMBus GPIO expansion, suitable for sensors, LEDs, switches, and fans. It has configurable input/output pins, polarity inversion, power-on reset, low standby current, Vcc operation from 2.3 V to 5.5 V, 5 V tolerant I/Os, noise filtering, and various package options including SO8, TSSOP8, and HVSON8. This versatile I/O expander enhances system flexibility with its simple interface, internal pull-ups, and high ESD protection, ideal for advanced embedded applications requiring compact design.
Configurable pins: input (high-impedance) or output
Polarity inversion register for active LOW or HIGH operation
Input/output pins: 4 bits, with internal 100 kΩ pull-ups
Package options: SO8, TSSOP8, HVSON8
ESD protection exceeding 2000 V HBM
Low standby current: 225-350 nA
Operation speed up to 400 kHz I2C clock
Noise filtering on SCL and SDA lines
Input voltage on I/Os up to 5.5 V
Soldering: suitable for surface-mount reflow and wave soldering
Buy the NXP Series PCA9536 4-bit I2C GPIO Expander: PCA9536TK118
Purchase the NXP PCA9536TK118 GPIO expander online today and benefit from its configurable I/O pins, polarity inversion, low power consumption, and high ESD protection. Designed for compact embedded systems, this versatile 4-bit I2C-bus GPIO expansion device simplifies adding extra I/O lines for sensors, LEDs, switches, and fans. Its broad voltage supporting range from 2.3 to 5.5 V, along with various surface-mount packages, ensures ease of integration, durability, and reliable performance in demanding electronic applications.
Get NXP PCA9536TK118 today—built for precision, compact design, and long-lasting durability for your embedded and automation projects.
Frequently Asked Questions
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You can click on the BUY or RFQ button to purchase PCA9536TK118 from an authorized NXP distributor.
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