Silicon Labs

CP2120-GMR  

I/O Expanders

CP2120-GMR Description

The CP2120-GMR is an obsolete, programmable interface IC chip manufactured by Silicon Labs. It is designed to provide robust communication capabilities through its I2C and SPI interfaces, operating at a clock frequency of 400 kHz. This chip is housed in a 20QFN package, making it suitable for surface-mount applications. The CP2120-GMR supports a supply voltage range of 3V to 3.6V and features 8 I/O pins with a current capacity of 100mA for both source and sink operations. It also includes an interrupt output, enhancing its functionality for various applications. The chip is available in a tape and reel (TR) package, facilitating efficient handling and assembly processes. Despite its obsolescence, the CP2120-GMR remains a reliable choice for specific legacy systems and applications requiring its unique feature set.

CP2120-GMR Features

• Programmability: The CP2120-GMR offers programmable capabilities, allowing for customization to meet specific application requirements.
• Dual Interface: It supports both I2C and SPI interfaces, providing flexibility and compatibility with a wide range of systems.
• Clock Frequency: Operating at 400 kHz, the CP2120-GMR ensures efficient data transfer rates suitable for various applications.
• Power Efficiency: With a supply voltage range of 3V to 3.6V, it is designed to operate efficiently within low-power environments.
• I/O Capability: The chip features 8 I/O pins, each capable of sourcing or sinking up to 100mA, making it suitable for applications requiring moderate current handling.
• Interrupt Output: The inclusion of an interrupt output enhances the chip's functionality, enabling efficient signaling and control mechanisms.
• Surface Mount: The surface-mount design allows for easy integration into modern PCB designs, ensuring compatibility with contemporary manufacturing processes.
• Moisture Sensitivity Level (MSL): With an MSL of 1 (Unlimited), the CP2120-GMR is suitable for a wide range of environmental conditions without the need for special handling.

CP2120-GMR Applications

The CP2120-GMR is ideal for applications requiring reliable and efficient communication interfaces. Its dual I2C and SPI capabilities make it suitable for systems where multiple communication protocols are needed. The chip's moderate current handling and programmability make it a versatile choice for various electronic devices, including:

• Embedded Systems: Ideal for embedded systems requiring efficient data transfer and control mechanisms.
• Industrial Automation: Suitable for industrial applications where robust communication interfaces are essential.
• Consumer Electronics: Can be used in consumer electronics for applications requiring moderate current handling and efficient data transfer.
• Legacy Systems: Given its obsolescence, the CP2120-GMR is particularly useful for maintaining and upgrading legacy systems that rely on its specific feature set.

Conclusion of CP2120-GMR

The CP2120-GMR, despite being marked as obsolete, remains a valuable component for specific applications due to its unique feature set. Its dual I2C and SPI interfaces, moderate current handling capabilities, and programmable nature make it a versatile choice for various electronic systems. While newer models may offer enhanced performance and additional features, the CP2120-GMR continues to serve as a reliable option for legacy systems and applications where its specific capabilities are required. For engineers and designers working with existing systems or requiring a specific set of features, the CP2120-GMR remains a viable and efficient solution.

CP2120-GMR Documents

Download datasheets and manufacturer documentation for CP2120-GMR

Errata :

CP2120 Errata      

Datasheets :

CP2120      

PCN Packaging :

Labeling Change 14/Dec/2021       Mult Dev Label Chgs 20/Oct/2021      

PCN Obsolescence/ EOL :

CP2120 15/Dec/2020      

HTML Datasheet :

CP2120