CY8C20160-SX2I CapSense Touch Controller | Infineon
MPN： CY8C20160-SX2I ✓ 啟用中CY8C20160-SX2I 概覽
A capacitive-touch controller is a semiconductor that detects changes in capacitance caused by a user touching an electrode or sensor pad. In the broader hierarchy, the CY8C20160-SX2I belongs to the family of capacitive-sensing controllers, touch-screen controllers, embedded controllers, and integrated circuits. Unlike a mechanical switch, this controller can interpret capacitive input electronically and combine that function with programmable digital I/O in a compact surface-mount device.
The primary feature is the integration of CapSense Express control with six I/O resources. According to the verified technical listing, the I/O can be configured as capacitive-sensing buttons or as GPIOs for driving LEDs or interrupts. This combination reduces the number of separate components required for a small user-interface panel because touch detection and immediate digital-output functions can coexist in one controller. The 16-SOIC package also supports conventional surface-mount PCB assembly.
The device operates from a 3 V supply and is specified over -40°C to 85°C. These values place it in an industrial-temperature operating range suitable for embedded controls, access panels, appliances, and compact human-interface systems. The verified listing also associates the part with a 2 kbit data density, while another distributor specification reports 2 KB of flash and 512 bytes of RAM. These memory descriptions should be confirmed against the applicable manufacturer documentation before relying on them for firmware sizing.
Typical uses include capacitive buttons for appliance controls, illuminated touch keys, compact access panels, and LED or interrupt-driven user interfaces. Because the I/O resources can serve both sensing and GPIO roles, the controller is especially useful when a design needs a limited number of touch inputs without adding a larger general-purpose microcontroller.
Designers should confirm the exact pin mapping, usable I/O count, memory organization, and programming requirements from the manufacturer datasheet before layout release. PCB design must preserve the intended capacitive-sensing electrode geometry, provide suitable grounding and filtering around the controller, and account for connector, copper, and enclosure effects that can change touch performance.
This page consolidates the verified distributor specifications, package information, commercial availability, candidate family alternatives, and practical design cautions. It also separates confirmed values from specification gaps, helping engineers evaluate sourcing and fit without treating search-result snippets as a substitute for the complete manufacturer datasheet.
直接替換替代品，適用於 CY8C20160-SX2I — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： CY8C20160-SX2I （相同外形與佔位） — 差異在於 Product Type, Operating Temperature, Package Type, Supply Voltage, Configurable I/O Count.
CY8C20180-SX2I
✅ 直接替換聯絡詢價
查看資料表 →CY8C20140-SX2I
✅ 直接替換聯絡詢價
查看資料表 →CY8C20120-SX2I
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
CY8C20100-SX2I
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MC9RS08KA4CWG
✅ 直接替換聯絡詢價
查看資料表 →CY8C20160-SX2I 規格
| Product Type | CapSense Express capacitive-touch controller |
| Number of I/O Resources | 6 I/O |
| 封裝 | 16-SOIC |
| 腳位數 | 16 pins |
| 供應電壓 | 3 V |
| 工作溫度 | -40°C to 85°C |
| Configurable Sensing Inputs | Capacitive-sensing buttons |
| General-Purpose I/O | GPIOs for driving LEDs or interrupts |
| Reported Data Density | 2 kbit |
| Reported Flash Memory | 2 KB |
| Reported RAM | 512 bytes |
| Controller Architecture | 8-bit controller |
| 安裝類型 | Surface Mount |
| Configuration Interface | I2C |
CY8C20160-SX2I 16-soic 腳位配置指南
CY8C20160-SX2I（16-soic 封裝）的腳位配置。 腳位編號、功能與連接圖定義於製造商資料手冊中。請參閱該手冊以取得確切的封裝尺寸與焊接指引。
無詳細腳位定義資料： CY8C20160-SX2I.
請參閱 資料表 以查看完整腳位配置。
典型應用
CY8C20160-SX2I 適用於 6 應用s: Appliance Touch Controls, Access and Security Keypads, Illuminated User Interfaces, Industrial Equipment Interfaces, Consumer Appliance Buttons, IoT Control Panels.
Appliance Touch Controls
The CY8C20160-SX2I fits compact appliance control panels that require capacitive buttons without a larger general-purpose microcontroller. Its verified 3 V supply and configurable I/O resources allow sensing inputs to coexist with functions such as LED indication or interrupt signaling. According to the DigiKey and Mouser listings, the device is a CapSense Express controller with six I/O resources. This makes it suitable for selecting product options, adjusting operating modes, or activating functions through a sealed capacitive keypad. The principal design consideration is electrode and enclosure validation, because moisture, conductive coatings, and nearby power circuitry can change the sensed capacitance.
推薦
Access and Security Keypads
The CY8C20160-SX2I is suitable for compact access-control or security panels that need a limited number of capacitive keys and indication functions. The verified 16-SOIC package is compatible with conventional surface-mount assembly, while the six-I/O CapSense Express configuration can combine button detection with LED drive or interrupt outputs. Its -40°C to 85°C specified operating range also supports industrial environments where consumer-temperature controllers may be unsuitable. Designers should test the complete keypad assembly because finger geometry, glove use, panel material, and grounding can materially affect capacitive sensing performance.
推薦
Illuminated User Interfaces
The CY8C20160-SX2I can serve as the controller for illuminated capacitive keys because its I/O resources can be configured for capacitive-sensing buttons, LED drive, or interrupts. The verified 3 V operating point aligns with low-voltage embedded product designs, and the 16-SOIC package avoids requiring a large custom package. In a typical implementation, the controller detects a touch event, updates an indicator, and manages a system interrupt. Board-level decoupling and LED current routing remain important because the sensor threshold and user-interface response must remain stable when indicator circuitry switches.
推薦
Industrial Equipment Interfaces
The CY8C20160-SX2I is applicable to industrial equipment interfaces requiring a small number of robust capacitive inputs over a -40°C to 85°C operating range. The verified six-I/O CapSense Express architecture can reduce component count when a product needs touch buttons plus local indication or host notification. It is especially useful in compact machine controls where a mechanical switch would be undesirable. Implementation should include startup and threshold validation across temperature, moisture, and supply variation, as well as layout checks that keep noisy power and switching nodes away from sensitive sensor inputs.
推薦
Consumer Appliance Buttons
The CY8C20160-SX2I is a practical controller for consumer appliances requiring sealed capacitive buttons, status indication, and a compact interface footprint. Its verified 16-SOIC package supports automated surface-mount production, and the 3 V supply is suitable for many embedded control platforms. Compared with a mechanical multi-switch design, the device can consolidate touch detection and GPIO behavior while preserving a clean exterior panel. Firmware must provide dependable debounce and fault handling, and the final sensor layout should be tested with the production enclosure because plastic thickness and conductive coatings affect capacitance.
推薦
IoT Control Panels
The CY8C20160-SX2I can support compact IoT control panels that need a small set of local capacitive commands without a full application processor. Its six-I/O configuration provides a potential mix of sensor inputs and GPIO outputs, while the -40°C to 85°C range suits equipment installed outside controlled room conditions. The controller may detect user input and generate an interrupt for a separate communications or processing device. Because the target is a dedicated controller rather than a fully specified communications SoC, its I2C configuration interface and firmware support should be evaluated against the system architecture before selection.
推薦
推薦產品摘要
工程參考資料，適用於 CY8C20160-SX2I — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | CY8C20180-SX2I | CY8C20140-SX2I | CY8C20120-SX2I | CY8C20100-SX2I | MC9RS08KA4CWG |
|---|---|---|---|---|---|---|
| Package | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC | 16-SOIC class |
| Brand | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | Freescale Semiconductor |
| Product Category | CapSense Express controller | CapSense Express controller | CapSense Express controller | CapSense Express controller | CapSense Express controller | 8-bit controller |
主要差異化特點
- Six-I/O configuration is explicitly identified for the target (對比CY8C20180-SX2I)
- CapSense Express functionality combines touch sensing and GPIO duties (對比MC9RS08KA4CWG)
- The target has verified commercial channel availability (對比CY8C20100-SX2I)
設計說明
Do not treat a matching SOIC package as proof of drop-in compatibility. The supplied search results conflict over whether every listing describes an eight-pin or 16-pin device, and they do not provide a complete pin table. Download the applicable Infineon document, compare power, ground, I2C, and every capacitive-sensing pin, and confirm that the alternative supports the same number of electrodes and GPIO functions before revising a PCB.
Keep sensitive capacitive-sensing traces short and isolate them from switching nodes, high-current LED paths, inductors, and long ground-current paths. Use a continuous ground reference beneath the controller and sensor area, route return currents away from the electrodes, and keep connector and enclosure structures away from the sensing copper. Because the verified information does not provide recommended trace geometry, obtain the manufacturer layout guidance rather than inventing dimensions.
Plan the 3 V supply rail so that controller and indicator loads do not disturb sensor thresholds. Place local bypass capacitors at the controller's supply pins and keep LED or load-driver switching paths physically separate from capacitive inputs. The verified data does not state the permitted supply range, capacitor values, or I2C pull-up requirements, so those values must be obtained from the manufacturer datasheet. Validate startup and touch operation across the expected 3 V supply tolerance.
Capacitive sensing performance must be verified with the production PCB, front panel, cable, enclosure, and intended user interaction. A threshold that works on a bare board may fail after a plastic overlay is added. Test nominal touches, wet or contaminated surfaces, adjacent-button interference, glove use if required, and system noise. The controller's capacitive capability should not be treated as a guaranteed user-interface result without this production-level validation.
合規資訊
The supplied verified data does not contain explicit RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive-qualification statements. The industrial temperature range alone does not establish AEC-Q100 qualification.