CAP1203-1-SN

Overview

The CAP1203-1-SN is a three-channel capacitive touch sensor controller manufactured by Microchip Technology. It features programmable sensitivity and automatic recalibration for system parasitic capacitance. The device supports SMBus and I2C communication interfaces with an operating voltage range of 3.0V to 5.5V. It offers multiple power states, including Deep Sleep with typical current consumption of 5µA. The component is housed in an 8-pin SOIC package.

Feature Summary

• Three independent capacitive touch sensor inputs with individual threshold configuration
• Multiple pattern touch recognition allowing simultaneous button detection
• Low power operation with configurable Active, Standby, and Deep Sleep states
• Integrated analog filtering and digital EMI blocker for noise immunity

Applications

• Desktop and notebook PCs
• LCD monitors
• Consumer electronics
• Appliances

Procurement Notes

Verify the specific ordering suffix '-1-SN' against official Microchip documentation to confirm package type and tape/reel specifications. Ensure compatibility with host controller voltage levels and interface requirements before procurement.

Selection Notes

Select this component when a multi-touch interface with low standby power is required. Consider the 8-pin SOIC package for through-hole or standard surface mount assembly. Verify that the host system supports SMBus or I2C protocols for proper integration.

Part Context

The CAP1203 series provides capacitive sensing solutions for user interface applications. The -SN suffix typically denotes the 8-pin Small Outline Integrated Circuit (SOIC) package variant within the product family, offering a compact footprint for space-constrained designs.

Replacement Considerations

Consult Microchip's official cross-reference tools for verified substitutes. Ensure any replacement maintains compatible pinout, voltage range, and communication protocol support.