CPT212B-A01-GM

$1.53

Description：12 CHANNEL CAPACITIVE TOUCH CONT
Series：-

SKU:f5c67ac2696c Category: Sensor, Capacitive Touch Brand: Silicon Labs

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Product introduction

Product Detailed Parameters

Description：12 CHANNEL CAPACITIVE TOUCH CONT
Series：-
Mfr：Silicon Labs
Package：Tube
Type：Buttons
Proximity Detection：Yes
Number of Inputs：Up to 12
LED Driver Channels：-
Interface：I2C
Resolution：-
Voltage - Supply：1.8V ~ 3.6V
Current - Supply：3.1mA
Operating Temperature：-40°C ~ 85°C
Mounting Type：Surface Mount
Package / Case：20-UFQFN Exposed Pad
Supplier Device Package：20-QFN (3x3)
Grade：-
Qualification：-

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CPT212B-A01-GM

Overview

The CPT212B-A01-GM is a 12-channel capacitive touch controller from Silicon Labs' TouchXpress series, designed for button-based user interfaces. It operates within a supply voltage range of 1.8 V to 3.6 V, with a typical operating voltage of 2.4 V. The device features an I2C interface for communication and is housed in a QFN-20 package measuring 3 mm x 3 mm x 0.55 mm. It supports surface mount technology and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

Provides a turnkey solution for adding capacitive touch interfaces without complex firmware development
Integrates configuration loader capabilities for simplified system integration
Supports standard I2C communication protocol for efficient data transfer

Applications

Home appliances
Medical devices
Consumer electronics
Instrumentation and control panels
Lighting controls

Procurement Notes

This component has been officially discontinued by the manufacturer as of February 27, 2024. Engineers must verify current availability through authorized distributors or secondary markets. Design-in activities should consider end-of-life status to ensure long-term supply chain stability for production runs.

Selection Notes

Select this part when a 12-channel capacitive touch solution with I2C connectivity is required. Verify that the host system supports the specified voltage range and that the QFN-20 footprint fits the PCB layout constraints. Ensure compatibility with existing TouchXpress configuration tools if updating designs.

Part Context

The CPT212B-A01-GM belongs to the CPT212B family of capacitive touch controllers. It shares the TouchXpress architecture with related models like the CPT213B, offering similar ease of integration for touch sensing applications. The suffix indicates specific packaging and configuration variants within the broader product line.

Replacement Considerations

No direct public substitute part numbers are confirmed for this discontinued model. Engineers may evaluate other members of the CPT212B or CPT213B families, though channel counts and pinouts may differ. Cross-referencing with newer Silicon Labs touch controllers is recommended for new designs.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.