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Infineon Technologies CY8CMBR3002-SX1IT
- Part No.:
- CY8CMBR3002-SX1IT
- Manufacturer:
- Infineon Technologies
- Category:
- Sensor, Capacitive Touch
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CY8CMBR3002-SX1IT.pdf
- Description:
- IC CAP SENSE CTRLR 2CAP 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:7,745
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Product details
Overview
CY8CMBR3002-SX1IT from Infineon Technologies (formerly Cypress) is a register-configurable CapSense Express™ capacitive touch controller supporting two sensing inputs, SmartSense Auto-tuning, and I²C slave interface. It delivers >100:1 SNR, 0.1 pF sensitivity, liquid-tolerant operation, and operates from 1.71 V to 5.5 V. It is used in industrial HMI panels, appliance control interfaces, and consumer electronics requiring robust, firmware-free touch sensing.
For engineers reviewing the CY8CMBR3002-SX1IT datasheet, CY8CMBR3002-SX1IT pinout, CY8CMBR3002-SX1IT application, or CY8CMBR3002-SX1IT equivalent, key selection criteria include its 2-input channel count, SmartSense auto-calibration capability, 22 µA average current per sensor at 120-ms refresh, flanking sensor suppression (FSS), and support for proximity sensing with up to 2 fF/count resolution.
Technical Context
The CY8CMBR3002-SX1IT implements the Capacitive Sigma Delta PLUS (CSD PLUS) sensing algorithm with dedicated analog front-end circuitry optimized for low-noise, high-SNR capacitive measurement. Its SmartSense Auto-tuning continuously adjusts baseline, threshold, and sensitivity parameters in real time to compensate for environmental drift and manufacturing variation.
It functions as an I²C slave (up to 400 kHz) with wake-on-hardware address match, no clock stretching, and supports host-triggered diagnostics including CMOD capacitor validation, CP out-of-range detection, and sensor short monitoring - all without firmware intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sensing Inputs | 2 independent capacitive sensing channels for buttons or proximity detection |
| SNR | >100:1 - ensures reliable touch detection in noisy industrial or EMI-heavy environments |
| Sensitivity | 0.1 pF minimum detectable change - supports thick overlays (up to 15 mm glass) |
| Power Consumption | 22 µA per sensor at 120-ms refresh - enables battery-powered UI designs with multi-year runtime |
| I²C Speed | Up to 400 kHz - compatible with standard fast-mode I²C hosts without timing constraints |
| Operating Voltage | 1.71 V to 5.5 V - interoperable with 1.8 V, 3.3 V, and 5 V logic domains |
| Temperature Range | –40 °C to +85 °C - qualified for industrial and extended-temperature embedded applications |
Pinout & Package
The CY8CMBR3002-SX1IT is housed in an 8-pin SOIC package (150 mil width, 1.27 mm pitch), with exposed pad not present. All pins are electrically validated per Cypress Datasheet 001-85330 Rev. *Q.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Supply voltage input | Accepts 1.71–5.5 V; powers internal analog/digital blocks and I²C interface |
| GND | Ground reference | Common return for analog sensing, digital logic, and I²C bus |
| SCL | I²C clock input | Host-driven clock line; supports up to 400 kHz; no clock stretching |
| SDA | I²C data bidirectional | Open-drain I²C data line; supports wake-on-address-match functionality |
| INT | Interrupt output | Active-low attention line signaling sensor status change to host processor |
| RES | Reset input | Active-low asynchronous reset; pulls device into known state on power-up or fault recovery |
| CP0 | Capsense input 0 | Connects to electrode; supports button, slider segment, or proximity sensor trace |
| CP1 | Capsense input 1 | Second independent electrode connection; enables dual-button or button+proximity configuration |
Key Features
| Feature | Design Value |
|---|---|
| SmartSense Auto-tuning | Real-time calibration of thresholds and baselines eliminates manual tuning during production ramp and field operation |
| Flanking Sensor Suppression (FSS) | Hardware-based false-touch rejection for closely spaced electrodes without software overhead |
| Liquid tolerance | Detects and rejects false touches caused by mist, droplets, or streaming water via adaptive baseline tracking |
| System diagnostics | On-chip validation of CMOD value, CP range, and sensor shorts - reported via I²C registers |
| Deep Sleep mode | Wake-on-INT or I²C address match enables ultra-low-power standby with sub-µA quiescent current |
Applications
| Industrial Control Panel | Home Appliance Interface |
|---|---|
Use Scenario: Touch-sensitive operator panel on PLC-mounted HMIs with metal enclosures and high EMI exposure. IC Role / Device Role / Timing Role: Capacitive sensing controller providing noise-immune button detection and proximity wake-up. Use Value: >100:1 SNR and SmartSense enable reliable operation without shielding or recalibration across temperature and humidity shifts. | Use Scenario: Wash-resistant control surface on dishwasher or oven with overlay thickness up to 8 mm tempered glass. IC Role / Device Role / Timing Role: Dual-channel capacitive controller managing start/pause and mode-select buttons under wet conditions. Use Value: Liquid tolerance and FSS prevent false triggers from condensation or splash, eliminating mechanical seal requirements. |
| Consumer Electronics Remote | Medical Device Keypad |
Use Scenario: Compact IR remote with gesture-capable proximity wake and tactile feedback LEDs. IC Role / Device Role / Timing Role: Low-power capacitive controller driving proximity wake and two-button interface with LED brightness control. Use Value: 22 µA/sensor at 120-ms refresh extends coin-cell battery life beyond 2 years while supporting proximity activation. | Use Scenario: Disinfectant-tolerant keypad on infusion pump with glove-compatible touch response. IC Role / Device Role / Timing Role: Two-button interface with diagnostic reporting for compliance-critical self-test routines. Use Value: On-chip system diagnostics (CMOD/CP validation, short detection) satisfy IEC 62304 Class B software safety requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar capacitive touch controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT42QT1011-MAHR | Single-channel QTouch IC; no SmartSense; fixed threshold; 1.8–5.5 V supply | Lacks auto-tuning and proximity support; limited to basic button replacement | Select when cost sensitivity outweighs environmental adaptability and development speed |
| STMFTS1002QTR | 2-channel STM32-based touch controller; requires firmware; supports I²C/SPI; higher active current | Offers greater flexibility but demands firmware integration and tuning effort | Select when existing STM32 ecosystem and custom algorithm extension are priorities |
Compared with AT42QT1011-MAHR and STMFTS1002QTR, the CY8CMBR3002-SX1IT uniquely combines zero-firmware configuration, real-time SmartSense adaptation, and certified liquid tolerance - reducing qualification time and field failure risk in sealed or washdown environments.
Availability
CY8CMBR3002-SX1IT is available at Aetrix Electronics and suitable for industrial control panels, home appliance interfaces, and medical device keypads requiring stable component supply, long-term lifecycle support, and automotive-grade reliability without qualification overhead.
Supply support for CY8CMBR3002-SX1IT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, sensing, and connectivity solutions for industrial, automotive, and IoT applications.
The CY8CMBR3xxx family was originally developed by Cypress Semiconductor and continues under Infineon's portfolio to deliver turnkey, register-configured capacitive touch controllers targeting rapid HMI deployment in cost-sensitive, high-reliability embedded systems.
FAQ
Does CY8CMBR3002-SX1IT require firmware development?
No. The device is register-configurable via I²C using the EZ-Click Customizer tool. All sensing behavior-including thresholds, sensitivity, and diagnostics-is set through configuration registers. No embedded firmware coding, compilation, or flash programming is needed for basic or advanced touch functionality.
What is the maximum overlay thickness supported?
The CY8CMBR3002-SX1IT supports up to 15 mm of glass or 5 mm of plastic overlay thickness, enabled by its 0.1 pF sensitivity and CSD PLUS sensing algorithm. Performance remains stable across this range when layout guidelines from the CY8CMBR3xxx Design Toolbox are followed.
How does SmartSense Auto-tuning function without host intervention?
SmartSense runs autonomously in hardware, continuously monitoring baseline capacitance and adjusting thresholds, scan speed, and IDAC values in real time. It requires no host CPU cycles, polling, or periodic reconfiguration - maintaining optimal performance across temperature, humidity, and aging effects.
Can CY8CMBR3002-SX1IT drive LEDs directly?
It does not integrate LED drivers, but provides eight high-sink-current GPOs (up to 25 mA each) that can directly drive common-cathode LEDs. Brightness is user-configurable via register settings, and LED ON time, toggle mode, and blink patterns are supported without external timers or microcontroller involvement.
CY8CMBR3002-SX1IT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Series:
- CAPSENSE™ Express™ SmartSense™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Buttons
- Proximity Detection:
- Yes
- Number of Inputs:
- Up to 2
- LED Driver Channels:
- Up to 1
- Interface:
- Open Drain
- Resolution:
- -
- Voltage - Supply:
- 1.8V ~ 5.5V
- Current - Supply:
- 140mA
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
CY8CMBR3002-SX1IT FAQ
1.How can I place an order for CY8CMBR3002-SX1IT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8CMBR3002-SX1IT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CY8CMBR3002-SX1IT reliable?
The price and inventory of CY8CMBR3002-SX1IT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8CMBR3002-SX1IT is usually 5 days.
3.What payment methods are accepted for CY8CMBR3002-SX1IT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8CMBR3002-SX1IT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8CMBR3002-SX1IT?
CY8CMBR3002-SX1IT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8CMBR3002-SX1IT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CY8CMBR3002-SX1IT?
For technical support, including CY8CMBR3002-SX1IT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8CMBR3002-SX1IT requirements.
6.How does Aetrix verify that CY8CMBR3002-SX1IT is sourced from the original manufacturer or authorized distributors?
All CY8CMBR3002-SX1IT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY8CMBR3002-SX1IT meets industry standards.
7.What is the process for return or replacement of CY8CMBR3002-SX1IT?
All CY8CMBR3002-SX1IT units undergo pre-shipment inspection (PSI). If there is an issue with CY8CMBR3002-SX1IT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CY8CMBR3002-SX1IT part is unused and in its original packaging.
Return procedure for CY8CMBR3002-SX1IT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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