
Electronic components
I/O Expanders Chip PCA9555D
- Part number
- I/O Expanders Chip PCA9555D
- Category
- Integrated Circuit / Programmable Logic Device
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Overview
The PCA9555 is a 24-pin CMOS device with a universal GPIO interface, which serves as a serial input/output I/O expander chip and provides 16 bits of general purpose parallel input/output (GPIO) expansion.
Details
Products Description
The PCA9555 is a 24-pin CMOS device with a universal GPIO interface, which serves as a serial input/output I/O expander chip and provides 16 bits of general purpose parallel input/output (GPIO) expansion.
Features
The PCA9555D is a reliable and versatile interface chip for Serial Input Output I/O expansion. It has the added benefit of being 5V tolerant, making it compatible with a wide range of applications. Additionally, the chip features a Polarity Inversion register, an Active LOW interrupt output, and Low standby current, all of which contribute to its efficiency and effectiveness as an input/output expander.
Furthermore, the PCA9555D is designed with a noise filter on SCL/SDA inputs to prevent disruptions in communication, and there is no glitch on power-up, ensuring a smooth and uninterrupted start-up process. Additionally, the chip has an internal power-on reset, which further enhances its reliability and stability.
In terms of safety, the PCA9555D features ESD protection that exceeds 2000 V HBM per JESD22-A114 and 200 V MM per, ensuring that it can withstand a high level of electrostatic discharge without any damage.
Overall, the PCA9555D is a highly capable and dependable chip that can be used in a wide range of applications to expand input/output capabilities while maintaining superior performance and safety.
Dual-range VCCAUX supply simplifies 3.3V-only design
Abundant, flexible logic resources
Hierarchical SelectRAM™ memory architecture
Parameters
Packaging method
Input voltage
Operational temperature
SOT-137
3.00 V to 5V
-40 ℃ to 85 ℃
Application
IO extensions or sensor interfaces or communication interfaces or IOT applications etc
Pin Configuration
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