CY8C20110-SX2I - 10-Input CapSense Controller | Infineon
MPN: CY8C20110-SX2I ✓ NakahandaCY8C20110-SX2I Ulas
A capacitive touch controller is a specialized input interface IC that detects changes in capacitance caused by a user's finger or conductive object. It belongs to the broader capacitive-sensing controller category, which combines analog front-end measurement, configurable button logic, and digital communication. Unlike a mechanical switch, a CapSense controller can provide sealed user interfaces, compact layouts, and configurable behavior without exposing moving electrical contacts.
The CY8C20110 supports four to ten capacitive buttons through its 10 CapSense I/O resources. Its I2C interface provides a straightforward connection to a host microcontroller for configuration and status communication. Configuration is stored in onboard nonvolatile memory so that the controller can load its operating configuration automatically at power-on. The device is also optimized for LED dimming in backlight applications through 15 selectable duty cycles.
The CY8C20110-SX2I combines sensing and control functions without requiring a separate host processor to perform basic touch detection. Its operating range of 2.4 V to 2.9 V suits low-voltage embedded systems where supply headroom is constrained. The industrial temperature rating of -40°C to 85°C supports operation across commercial and industrial ambient environments when the complete assembly is designed and tested for those conditions.
Typical uses include appliance control panels, compact capacitive keypads, lighting controls, backlight dimming interfaces, and embedded touch buttons. In a keypad, multiple CY8C20110 I/O resources can support individual electrodes, while the host reads touch events over I2C. The device is particularly useful when the mechanical design requires a flush panel, sealed enclosure, or a product appearance based on illuminated capacitive controls rather than discrete switches.
Designers should account for electrode geometry, guard components, environmental compensation, connector capacitance, and the effect of enclosure materials. The I2C bus must also be checked for address availability and pull-up requirements on the assembled system. Because the verified product information does not provide a complete public pin map, PCB designers should use the manufacturer pinout and reference design rather than infer connections from the package outline.
This page combines verified manufacturer and distributor information, package and interface constraints, drop-in alternatives, application guidance, and design notes. It highlights where the CY8C20110-SX2I fits within capacitive user-interface designs and where replacement decisions require additional firmware, firmware-compatibility, and board-level validation.
Mga alternatibo na pwedeng ilagay na CY8C20110-SX2I — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok CY8C20110-SX2I (parehas na form factor at footprint) — pagkakaiba sa Product Type, Package, Package Type, Sensor Type.
CY8C20110-SX1I
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
CY8C20100-SX2I
✅ Drop-In ⚠️ Mga Talaan Hindi Naiwerikmo📋 Alternatibo na Reference (hindi sa katalogo)
CY8C20100-SX1I
✅ Drop-In ⚠️ Mga Talaan Hindi Naiwerikmo📋 Alternatibo na Reference (hindi sa katalogo)
CY8C20111-SX1I
✅ Drop-In ⚠️ Mga Talaan Hindi NaiwerikmoMagkontak para sa presyo
Tingnan ang Datasheet →CY8C20111-SX2I
✅ Drop-In ⚠️ Mga Talaan Hindi Naiwerikmo📋 Alternatibo na Reference (hindi sa katalogo)
CY8C20110-SX2I Mga Spesipikasyon
| Product Type | CapSense Express capacitive touch controller |
| CapSense I/O Pins | 10 pins |
| Supported Capacitive Buttons | 4 to 10 buttons |
| Host Interface | I2C |
| Operating Supply Voltage Range | 2.4 V to 2.2.9 V |
| Hanay ng Temperature na Operasyon | -40°C to 85°C |
| Packhaging | 16-pin SOIC |
| Uri ng Pagpapasok | Surface mount |
| Configuration Storage | Onboard nonvolatile memory |
| Power-On Configuration Loading | Automatic loading |
| LED Dimming Duty Cycles | 15 selectable duty cycles |
| LED Dimming Optimization | Backlight applications |
| Product Series | CapSense Express PSOC 201xx |
| Type ng Sensor | Capacitive touch sensing |
| Manufacturer Document Package Code | PG-DSO-16-801 |
Gabay sa Pin Configuration ng CY8C20110-SX2I pg-dso-16-801
Pin configuration para sa CY8C20110-SX2I (pg-dso-16-801 package). Ang pagnunumero ng pin, mga function, at connection diagram ay tinukoy sa datasheet ng manufacturer. Sumangguni dito para sa eksaktong footprint at mga alituntunin sa soldering.
Wala ng detalyadong pinout data na magagamit para sa CY8C20110-SX2I.
Sumangguni sa datasheet para sa buong pin configuration.
Tipikal na mga Gamit
CY8C20110-SX2I ay nararapat para sa 6 aplikasyons: Appliance Control Panel, Backlight Dimming Control, Industrial Equipment Keypad, Consumer Touch Interface, Lighting and Dimmer Interface, Embedded Capacitive Keypad.
Appliance Control Panel
The CY8C20110-SX2I fits appliance control panels requiring four to 10 capacitive buttons in a compact 16-pin SOIC footprint. Its 10 CapSense I/O resources allow the designer to map multiple touch zones to a sealed or flush front panel without exposing mechanical switches. The controller communicates with the appliance mainboard through I2C, while onboard nonvolatile memory supports automatic configuration loading at power-on. Because the verified supply range is only 2.4 V to 2.9 V, the appliance power tree must maintain that range during startup and operation. Electrode geometry, panel material, grounding, and humidity can alter measured capacitance, so the assembled panel must be tuned and tested rather than validated only with a loose breadboard.
Inirekomenda
Backlight Dimming Control
The CY8C20110-SX2I is suitable for capacitive backlight controls because the device documentation identifies optimization for LED dimming through 15 selectable duty cycles. A user can place a touch button beside a backlight and have the system controller read the resulting event over I2C, after which the host applies the selected brightness level to the external LED driver. Keeping the touch controller separate from the LED power stage helps organize the design into sensing, communication, and drive functions. The touch electrode still needs adequate spacing and guarding, and the final dimming response depends on the selected duty cycle, the LED driver, and the host firmware. This arrangement is useful in appliances and industrial panels with compact illuminated controls.
Inirekomenda
Industrial Equipment Keypad
The CY8C20110-SX2I can support a compact industrial keypad containing four to 10 capacitive controls. Its -40°C to 85°C operating-temperature specification provides a suitable component-level range for extended commercial and industrial environments, while the 16-pin SOIC package supports conventional surface-mount assembly. The I2C interface allows an industrial controller to receive input status and coordinate the keypad with other machine functions. Designers should provide a clean, stable 2.4 V to 2.9 V supply and evaluate conductive contamination, condensation, gloves, and changes in enclosure material. The component rating alone does not define touch performance; electrode geometry and environmental validation remain necessary for a reliable user interface.
Inirekomenda
Consumer Touch Interface
For consumer products, the CY8C20110-SX2I supports a modern button-based interface using four to 10 capacitive sensing channels without mechanical switch contacts. The controller's 10 CapSense I/O pins permit flexible electrode assignment, and I2C provides a direct link to a product microcontroller. Onboard nonvolatile configuration enables automatic loading at power-on, reducing host initialization work when the intended design is validated in advance. The 2.4 V to 2.9 V operating range requires careful integration with a low-voltage system rail, including sufficient startup margin. Designers should also evaluate cosmetic panel finishes, hand moisture, cable coupling, and charging-system interference before mass production because those factors directly influence capacitive measurement stability.
Inirekomenda
Lighting and Dimmer Interface
The CY8C20110-SX2I is applicable to lighting controls that use capacitive touch as the user command interface. Its verified support for 15 selectable LED-duty-cycle options provides a defined set of dimming selections, while the I2C port lets a host controller translate a touch event into the required external-driver command. This arrangement separates low-energy user input from the potentially higher-current LED power stage and makes it possible to place a sealed touch surface near an illuminated control. The 16-pin SOIC package is convenient for compact boards, but the 2.4 V to 2.9 V operating range must be respected. Firmware should also debounce, report, and apply the selected level without creating visible flicker or unexpected brightness transitions.
Inirekomenda
Embedded Capacitive Keypad
The CY8C20110-SX2I is well suited to an embedded capacitive keypad connected to a host processor over I2C. Four to 10 buttons can be supported by the available CapSense resources, and the automatic power-on loading of onboard nonvolatile configuration can simplify deterministic startup behavior. The controller's 16-pin SOIC package can be placed on a compact mixed-signal PCB, subject to normal analog-layout practices for the sensing pins. A successful implementation must coordinate electrode spacing, ground reference, shielding or guarding, and the host's firmware interpretation of touch events. Changes in cable length, panel adhesives, or nearby switching circuitry can influence the sensor baseline, making production validation of the complete mechanical assembly important.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for CY8C20110-SX2I — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | CY8C20110-SX1I | CY8C20100-SX2I | CY8C20100-SX1I | CY8C20111-SX1I | CY8C20111-SX2I |
|---|---|---|---|---|---|---|
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies |
| Package | 16-pin SOIC | 16-pin SOIC - same package | 16-pin SOIC - same package | 16-pin SOIC - same package | 16-pin SOIC - same package | 16-pin SOIC - same package |
Pangunahing mga Pagkakaiba
- Supports a broad configurable button count within a compact controller (kumpara saCY8C20111-SX2I)
- Verified low-voltage operating range and industrial temperature grade (kumpara saCY8C20100-SX2I)
- Onboard nonvolatile configuration enables automatic power-on loading (kumpara saCY8C20100-SX1I)
- Defined backlight-control feature set (kumpara saCY8C20111-SX1I)
Talaan ng Disenyo
Place the CY8C20110-SX2I and its supporting components in accordance with the manufacturer layout guidance, keeping sensor connections away from noisy switching nodes. Because the verified material confirms capacitive sensing and I2C functionality but does not provide a complete PCB reference layout, do not invent trace dimensions or grounding geometry. Use the official application guidance and evaluate electrode return paths, guarding, and connector placement on the assembled board.
Design the associated power rail for the verified 2.4 V to 2.9 V operating range under temperature and load, not only at nominal room temperature. Confirm startup behavior, output accuracy, and any configuration-download requirements against the manufacturer datasheet. The controller can operate from onboard nonvolatile configuration at power-on, but the host and supporting circuitry must still satisfy the same supply constraints during initialization.
Do not judge touch performance from a loose controller board when the final product uses a panel, adhesive, enclosure, cable, or shield. Those mechanical and electrical elements can change the sensing baseline and coupling. Test button response across expected temperature, humidity, supply, panel tolerances, and nearby noise sources, and recalibrate only according to the manufacturer's procedure. A component-level -40°C to 85°C rating does not guarantee a specified user experience in every enclosure.
Treat the I2C bus as a shared interface and verify address selection, pull-up requirements, capacitance, and bus compatibility with the host and other peripherals. The verified data does not disclose the electrical timing or address, so those details must come from the official manufacturer documentation. Keep the firmware able to distinguish communication faults from genuine touch events and define a safe behavior for an unavailable or unconfigured controller.
Impormasyon ng Pagsunod sa Kautusan
The supplied verified data does not explicitly state the target's RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than being inferred.