CP2120-GM
- Mfr.Part #
- CP2120-GM
- Manufacturer
- Silicon Labs
- Package / Case
- 20-VFQFN Exposed Pad
- Datasheet
- Download
- Description
- IC I/O EXPANDER I2C/SPI 8B 20QFN
- Stock
- 17,048
- In Stock :
- 17,048
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- Manufacturer :
- Silicon Labs
- Product Category :
- I/O Expanders
- Current - Output Source/Sink :
- 10mA 25mA
- Voltage - Supply :
- 3V~3.6V
- Number of Pins :
- 20
- Package / Case :
- 20-VFQFN Exposed Pad
- Surface Mount :
- yes
- Height :
- 900μm
- Supply Voltage :
- 3.3V
- Interface :
- I2C, SPI
- Base Part Number :
- CP2120
- RAM Size :
- 512B
- Packaging :
- Tube
- Number of Terminations :
- 20
- Clock Frequency :
- 400kHz
- Width :
- 4mm
- Published :
- 1997
- Interrupt Output :
- yes
- Factory Lead Time :
- 6 Weeks
- Pbfree Code :
- yes
- Pin Count :
- 20
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Operating Supply Voltage :
- 3V
- RoHS Status :
- RoHS Compliant
- Lead Free :
- Lead Free
- Weight :
- 42.467586mg
- Operating Temperature :
- -40°C~85°C
- Terminal Pitch :
- 0.5mm
- Mounting Type :
- Surface Mount
- Radiation Hardening :
- No
- uPs/uCs/Peripheral ICs Type :
- BUS CONTROLLER, I2C
- Length :
- 4mm
- Terminal Position :
- QUAD
- Output Type :
- Open Drain, Push-Pull
- Number of I/O :
- 8
- Datasheets
- CP2120-GM
CP2120-GM Documents

I/O Expanders Silicon Labs CP2120-GM Overview
The Silicon Labs CP2120-GM is a versatile and efficient I/O expander, perfect for designers who need to extend the input/output capabilities of their host processors via I2C or SPI communication protocols. This IC is housed in a compact 20QFN package, making it ideal for space-constrained applications. The CP2120-GM enables designers to add additional I/O ports to their systems, which can be particularly useful in complex embedded systems where GPIOs are limited. Its robust feature set and flexibility make it a preferred choice for a wide range of industrial and consumer applications, enhancing the overall functionality and responsiveness of electronic systems.
CP2120-GM Features
The CP2120-GM I/O expander from Silicon Labs boasts several key features that make it a powerful addition to any microcontroller or microprocessor system. These features include support for both I2C and SPI interfaces, providing flexibility in choice of serial communication. Additionally, it offers 8-bit I/O port expandability, low power consumption, and an easy-to-integrate 20QFN package, all of which contribute to its suitability for high-performance and scalable applications.
CP2120-GM Applications
- Smart Home Devices: Utilized in smart lighting systems and home automation hubs to manage multiple inputs and outputs, enhancing device interconnectivity and functionality.
- Industrial Automation: Deployed in industrial control systems to expand the number of sensors and actuators that can be controlled and monitored by a single processor, optimizing operational efficiency.
- Consumer Electronics: Integrated into devices such as gaming consoles and personal electronics to manage additional buttons and switches without the need for more complex microcontrollers.
- Portable Devices: Used in portable medical devices and handheld instruments to add extra controls and features without significant power consumption or space requirements.
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