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Infineon Technologies CY8C20160-SX2IT
- Part No.:
- CY8C20160-SX2IT
- Manufacturer:
- Infineon Technologies
- Category:
- Sensor, Capacitive Touch
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
CY8C20160-SX2IT.pdf
- Description:
- IC CAPSENSE EXP 6 I/O 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,096
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Product details
Overview
CY8C20160-SX2IT from Infineon Technologies is a capacitive touch-sensing microcontroller based on the PSoC™ 1 architecture, integrating an 8-bit M8C core, on-chip CapSense® analog front-end, 8 KB flash, 512 B SRAM, and configurable analog/digital blocks. It supports up to 16 self-capacitive or 8 mutual-capacitive sensors, operates from 2.4–5.25 V, and delivers <1 µA deep-sleep current. It is used in industrial HMI panels, appliance control knobs, and consumer electronics touch interfaces.
For engineers reviewing the CY8C20160-SX2IT datasheet, CY8C20160-SX2IT pinout, CY8C20160-SX2IT application, or CY8C20160-SX2IT equivalent, key selection criteria include CapSense® sensor count and resolution, low-power sleep modes, integrated voltage regulator tolerance, and I²C/SPI interface compatibility with host controllers.
Technical Context
The CY8C20160-SX2IT implements a dedicated CapSense® sigma-delta sensing engine that performs automatic baseline tracking, noise rejection, and proximity detection without CPU intervention. Its analog subsystem includes programmable IDACs (up to 62 µA), a 10-bit SAR ADC, and configurable op-amps for signal conditioning.
It features a single-cycle 8-bit M8C CPU running at up to 24 MHz, interrupt-driven sensor scanning, and hardware-accelerated touch reporting via I²C (up to 400 kHz) or SPI. The device supports multiple low-power modes-Sleep (0.7 µA), Deep Sleep (0.3 µA), and Hibernate-with wake-on-touch capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core | 8-bit M8C CPU, 24 MHz max - enables deterministic real-time touch response with minimal firmware overhead. |
| CapSense® Channels | 16 self-cap or 8 mutual-cap - supports full-button arrays or slider/rotary controls without external components. |
| Flash / SRAM | 8 KB / 512 B - sufficient for CapSense® tuning, HID report generation, and basic host protocol handling. |
| Supply Voltage | 2.4–5.25 V - compatible with 3.3 V and 5 V systems; internal LDO ensures stable analog operation. |
| Deep Sleep Current | 0.3 µA - enables battery-powered designs with multi-year operational life in touch-wake applications. |
| Interface | I²C (400 kHz) + SPI - simplifies integration with ARM Cortex-M hosts or USB-to-I²C bridges in embedded HMI. |
| Operating Temp | −40°C to +85°C - qualified for industrial and automotive cabin interior environments. |
Pinout & Package
Package: 24-pin SOIC (300 mil, 0.6 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Primary 2.4–5.25 V supply; powers digital core and CapSense® analog block. |
| VSS | Ground reference | Digital and analog ground return; requires low-impedance connection to minimize touch noise. |
| SCL / SDA | I²C bus interface | Open-drain pins supporting standard/fast-mode I²C; internally pulled up to VDD via 10 kΩ. |
| MOSI / MISO / SCLK / SS | SPI interface | Full-duplex SPI master/slave support; SS active-low enables multi-device sharing on same bus. |
| CPx (x=0–15) | Capacitive sensor input | Configurable as self-cap sense pads or mutual-cap TX/RX pairs; driven by internal IDAC and comparator. |
| INT | Interrupt output | Active-low open-drain signal indicating touch event or scan completion; wakes host MCU from sleep. |
Key Features
| Feature | Design Value |
|---|---|
| Hardware CapSense® Engine | Dedicated sigma-delta modulator with auto-calibration eliminates need for host CPU polling or firmware-based filtering. |
| Programmable IDAC | 10-bit adjustable current source (0–62 µA) enables robust sensing across varying PCB stack-up and overlay thickness. |
| Multi-Mode Low-Power Operation | Three ultra-low-power states (Sleep/Deep Sleep/Hibernate) with sub-millisecond wake latency preserve battery life in portable devices. |
| Integrated LDO Regulator | On-chip 2.5 V regulator supplies analog circuitry independently, reducing external component count and improving noise immunity. |
| HID-Ready Firmware Stack | Pre-certified USB HID and I²C slave firmware available - accelerates development of plug-and-play touch interfaces. |
Applications
| Industrial HMI Panels | Home Appliance Control Knobs |
|---|---|
|
Use Scenario: Touch-sensitive operator interface on PLC-mounted control panels requiring ESD-hardened, noise-immune input in factory-floor environments. IC Role / Device Role / Timing Role: Standalone capacitive touch controller managing up to 12 buttons and 1 slider; reports state changes over I²C at 10 ms intervals. Use Value: Eliminates mechanical switches and associated wear/failure; achieves >100 k-cycle lifetime and IP65-rated overlay compatibility. |
Use Scenario: Rotary encoder replacement on oven/microwave control dials, where tactile feedback is simulated via LED indicators and haptic pulses. IC Role / Device Role / Timing Role: Mutual-capacitive sensor hub detecting direction and speed of rotation; generates quadrature-like output via GPIO or I²C. Use Value: Supports glass or stainless-steel overlays up to 8 mm thick; maintains accuracy across temperature drift (−20°C to +70°C). |
| Consumer Electronics Remote Controls | Medical Device Keypads |
|
Use Scenario: Slim-profile TV remote with gesture-enabled touchpad and backlit capacitive keys, powered by coin-cell battery. IC Role / Device Role / Timing Role: Ultra-low-power touch manager scanning 8 keys and 1 trackpad in Deep Sleep mode; wakes only on valid touch. Use Value: Achieves >2-year battery life at 5 touches/day; built-in ESD protection (±15 kV HBM) prevents field failures. |
Use Scenario: Disinfectant-resistant keypad on infusion pump or patient monitor, requiring sealed front panel and glove-compatible operation. IC Role / Device Role / Timing Role: Self-capacitive controller driving 16 large-area keys (20 × 20 mm); reports keypress via SPI with debounce and anti-malfunction logic. Use Value: Complies with IEC 60601-1 leakage current limits; supports wet-finger operation and alcohol wipe durability testing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar capacitive touch controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8C20234-SX2IT | 16-channel self-cap, 16 KB flash, same package - adds extra flash for advanced gesture algorithms and dual-interface (I²C+SPI) concurrent use. | Required when firmware must store calibration profiles per user or implement swipe/gesture recognition locally. | Select if future firmware expansion or multi-protocol host connectivity is needed; otherwise, CY8C20160-SX2IT offers optimal cost/performance balance. |
| AT42QT1070-SSUR | 7-key QTouch® IC, no programmable CPU, fixed-function ASIC - lower BOM cost but no firmware customization or sensor reconfiguration. | Suitable only for static button layouts with no dynamic behavior or host communication beyond reset/interrupt. | Choose only for high-volume, fixed-feature products where CapSense® flexibility and HID stack are unnecessary. |
Compared with CY8C20234-SX2IT and AT42QT1070-SSUR, the CY8C20160-SX2IT delivers the best trade-off between programmability, sensor count, and power efficiency for mid-volume industrial and medical touch interfaces requiring field-upgradable behavior.
Availability
CY8C20160-SX2IT is available at Aetrix Electronics and suitable for industrial HMI panels, home appliance control knobs, and medical device keypads requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for CY8C20160-SX2IT 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 German semiconductor manufacturer specializing in power management, automotive ICs, security solutions, and embedded controllers, with global manufacturing and R&D centers.
CY8C20160-SX2IT belongs to the PSoC™ 1 family - a legacy but actively supported line of mixed-signal programmable system-on-chip devices designed specifically for cost-sensitive, low-power capacitive touch and analog-sensing applications.
FAQ
What is the maximum overlay thickness supported by CY8C20160-SX2IT in self-capacitive mode?
The CY8C20160-SX2IT supports up to 8 mm of glass or plastic overlay in self-capacitive configuration when using optimized sensor geometry (10 × 10 mm pads, 2 mm gap) and default IDAC settings. Thicker overlays require increased IDAC current and adjusted baseline tracking parameters, which are configurable via CapSense® Designer software.
Does CY8C20160-SX2IT support mutual capacitance sensing?
Yes - the device supports mutual capacitance with up to 8 independent TX/RX channel pairs. This mode enables true multi-touch detection and improved noise immunity in electrically noisy environments, such as near AC motors or switching power supplies, and is configured via the CapSense® Component in PSoC™ Designer.
Can CY8C20160-SX2IT operate from a 3.3 V supply while driving 5 V-tolerant I/O?
No - all I/O pins are strictly 3.3 V tolerant (absolute maximum 3.6 V). The device does not feature 5 V-tolerant inputs or outputs. For 5 V system interfacing, level-shifting circuitry (e.g., TXS0102) is required on I²C or SPI lines, and VDD must remain within 2.4–3.6 V for guaranteed operation.
Is there a qualified automotive-grade variant of CY8C20160-SX2IT?
No - CY8C20160-SX2IT is rated for industrial temperature range (−40°C to +85°C) and is not AEC-Q100 qualified. For automotive cabin applications, Infineon recommends the PSOC™ 4 series (e.g., CY8C4014LQI-422) with AEC-Q100 Grade 2 qualification and enhanced ESD/EMI robustness.
CY8C20160-SX2IT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Series:
- CAPSENSE™ Express™
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Verified
- Type:
- Buttons
- Proximity Detection:
- No
- Number of Inputs:
- Up to 6
- LED Driver Channels:
- Up to 6
- Interface:
- I2C
- Resolution:
- -
- Voltage - Supply:
- 2.4V ~ 5.25V
- Current - Supply:
- 1.5mA
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
CY8C20160-SX2IT FAQ
1.How can I place an order for CY8C20160-SX2IT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8C20160-SX2IT 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 CY8C20160-SX2IT reliable?
The price and inventory of CY8C20160-SX2IT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8C20160-SX2IT is usually 5 days.
3.What payment methods are accepted for CY8C20160-SX2IT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8C20160-SX2IT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8C20160-SX2IT?
CY8C20160-SX2IT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8C20160-SX2IT 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 CY8C20160-SX2IT?
For technical support, including CY8C20160-SX2IT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8C20160-SX2IT requirements.
6.How does Aetrix verify that CY8C20160-SX2IT is sourced from the original manufacturer or authorized distributors?
All CY8C20160-SX2IT 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 CY8C20160-SX2IT meets industry standards.
7.What is the process for return or replacement of CY8C20160-SX2IT?
All CY8C20160-SX2IT units undergo pre-shipment inspection (PSI). If there is an issue with CY8C20160-SX2IT, 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 CY8C20160-SX2IT part is unused and in its original packaging.
Return procedure for CY8C20160-SX2IT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY8C20160-SX2IT Tags
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IQS228B00000000TSR
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