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Infineon Technologies CY8CTMA140-LQI-01T
- Part No.:
- CY8CTMA140-LQI-01T
- Manufacturer:
- Infineon Technologies
- Category:
- Application Specific Microcontrollers
- Package:
- -
- Datasheet:
-
CY8CTMA140-LQI-01T.pdf
- Description:
- IC TRUETOUCH CAPSENSE 36QFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,895
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Product details
Overview
CY8CTMA140-LQI-01T from Cypress Semiconductor is a TrueTouch® capacitive touchscreen controller designed for 3.2-inch diagonal displays with 2-finger all-points tracking, 132 maximum nodes, and I²C/SPI dual-interface support. It operates from 1.71–3.6 V digital supply and 2.7–3.6 V analog supply, features Charger Armor™ noise immunity, and delivers >60 Hz refresh rate with <1.3 mA active current.
For engineers reviewing the CY8CTMA140-LQI-01T datasheet, CY8CTMA140-LQI-01T pinout, CY8CTMA140-LQI-01T application, or CY8CTMA140-LQI-01T equivalent, key selection criteria include 2-finger ghost-free tracking capability, 36-pin QFN package compatibility, industrial temperature range support, and dual-rail supply flexibility for portable touch UI designs.
Technical Context
The CY8CTMA140-LQI-01T implements a self-calibrating capacitive sensing engine with adaptive frequency hopping to suppress charger-induced noise and supports both chip-on-flex and chip-on-board sensor integration. Its CapSense®-based architecture enables large object detection and fat finger tracking without external firmware intervention.
It provides configurable I²C (up to 400 kHz) and SPI (2 Mbps sustained) interfaces with integrated bootloader for field upgrades, and operates across 1.71–3.6 V digital and 2.7–3.6 V analog rails - supporting single shared 2.7–3.6 V supply mode for simplified power design.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Fingers | 2 - Enables simultaneous ghost-free tracking of two touch points on display |
| Max Nodes | 132 - Supports up to 132 mutual-capacitance sensing intersections for 3.2-inch 4:3 aspect ratio screens |
| Digital Supply Range | 1.71–3.6 V - Allows direct connection to low-voltage SoC I/O rails or battery-backed LDOs |
| Analog Supply Range | 2.7–3.6 V - Ensures stable sensor excitation and SNR performance across voltage variation |
| Interface Support | I²C (400 kHz) + SPI (2 Mbps) - Dual protocol flexibility for host MCU compatibility and high-throughput gesture reporting |
| Active Current | <1.3 mA - Minimizes system power draw during active touch operation |
| Deep Sleep Current | 1 µA - Enables ultra-low-power standby in battery-powered handheld devices |
Pinout & Package
Package: 36-pin QFN (5 × 5 × 0.6 mm), exposed thermal pad, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | Digital I/O supply | Accepts 1.71–3.6 V; powers GPIO, I²C/SPI logic, and internal digital core |
| VDDA | Analog supply | Requires 2.7–3.6 V; supplies sensor excitation, ADC, and analog front-end circuitry |
| SCL / SDA | I²C interface pins | Open-drain, 3.3 V tolerant; support standard/fast-mode I²C up to 400 kHz |
| SCLK / MOSI / MISO / SS | SPI interface pins | Support 2 Mbps sustained throughput; enable high-speed gesture data streaming |
| INT | Interrupt output | Active-low open-drain signal indicating new touch report ready for host read |
| RST | Hardware reset input | Asynchronous active-low reset; initiates full initialization sequence including self-calibration |
| TPx / RXy | Capacitive sense terminals | Up to 12 TX and 11 RX lines (132 nodes); configurable for mutual-capacitance scanning |
Key Features
| Feature | Design Value |
|---|---|
| Charger Armor™ technology | Adaptive frequency hopping dynamically shifts scan frequency to avoid interference from switching charger noise |
| Self-calibrating sensing engine | Automatically compensates for temperature drift, humidity, and electrode aging without host intervention |
| Large object detection | Identifies and rejects palm or stylus-sized touches (>15 mm diameter) to prevent false triggers |
| Fat finger tracking | Maintains accurate centroid reporting for fingers up to 12 mm wide under varying pressure conditions |
| Integrated CapSense® button support | Enables dedicated mechanical or virtual button sensing using same sensor electrodes and firmware resources |
Applications
| Smartphone UI Controller | Industrial HMI Panel |
|---|---|
Use Scenario: Touchscreen interface for entry-level Android smartphones with 3.2-inch display and cost-sensitive BOM. IC Role / Device Role / Timing Role: Primary capacitive touch controller handling real-time mutual-capacitance scanning, gesture decoding, and I²C-based host communication. Use Value: Delivers 0.5 mm accuracy and 3.5 mm finger separation at <1.3 mA active current, enabling responsive UI with extended battery life. | Use Scenario: Operator interface on factory-floor HMIs requiring robustness against EMI from nearby motor drives and chargers. IC Role / Device Role / Timing Role: Noise-immune touch controller leveraging Charger Armor™ and smart noise suppression in common-mode and RF environments. Use Value: Maintains reliable touch registration despite 20–100 MHz broadband noise from industrial power electronics. |
| Medical Handheld Device | Consumer Portable Media Player |
Use Scenario: Disinfectant-resistant touch interface on clinical diagnostic tools operating in sterile environments. IC Role / Device Role / Timing Role: Self-calibrating controller compensating for condensation, glove use, and temperature shifts during multi-shift operation. Use Value: Eliminates manual recalibration cycles via automatic environmental adaptation, reducing maintenance downtime. | Use Scenario: Compact media player with 3.2-inch glass overlay and dual-rail power architecture. IC Role / Device Role / Timing Role: Dual-supply touchscreen controller supporting shared 2.7–3.6 V rail or independent digital/analog domains. Use Value: Simplifies PCB layout by enabling single-LDO solution while preserving SNR >60 dB and 0.1 mm noise-free resolution. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar touchscreen controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8CTMA140-LQI-09T | Supports 4-finger tracking (vs. 2) and same 132-node count; identical package and supply ranges | Required for pinch-to-zoom, multi-gesture UIs; not needed for basic tap/swipe navigation | Select when future-proofing for Android gesture compliance beyond basic touch |
| ATMXT224E-MAU | Microchip maXTouch® controller with 16-bit resolution, 5-finger tracking, and 2.8–3.6 V single-supply operation | Higher node density (up to 256) and deeper gesture library; requires different firmware stack | Choose for enhanced gesture fidelity and vendor-agnostic middleware support, accepting higher BOM cost |
Compared with CY8CTMA140-LQI-09T, this part trades multi-touch scalability for lower firmware complexity and reduced interrupt load; versus ATMXT224E-MAU, it offers tighter integration with Cypress PSoC ecosystem and lower power in deep sleep (1 µA vs. 5 µA), but lacks advanced gesture acceleration.
Availability
CY8CTMA140-LQI-01T is available at Aetrix Electronics and suitable for smartphone UI controllers, industrial HMI panels, medical handheld devices, and consumer portable media players requiring stable component supply and long-term lifecycle support.
Supply support for CY8CTMA140-LQI-01T 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
Cypress Semiconductor (now part of Infineon Technologies) is a fabless semiconductor company specializing in programmable system-on-chip (PSoC) solutions, USB controllers, and human-machine interface technologies.
The TrueTouch® product line was engineered specifically for high-noise, space-constrained capacitive touch applications in mobile and industrial devices, emphasizing robustness, low power, and seamless integration with ARM-based application processors.
FAQ
What is the maximum supported touchscreen size for CY8CTMA140-LQI-01T?
The CY8CTMA140-LQI-01T is specified for up to 3.2-inch diagonal displays at 4:3 aspect ratio with 132-node configuration. While stretched pitch may allow limited use up to 4.5 inches, Cypress documentation confirms 3.2-inch as the validated maximum for guaranteed 2-finger ghost-free tracking and SNR performance.
Does CY8CTMA140-LQI-01T support single-supply operation?
Yes - it supports single shared supply from 2.7 V to 3.6 V, connecting both VDDIO and VDDA to the same rail. This eliminates need for separate analog/digital LDOs, simplifying power design for compact portable devices without compromising noise immunity or accuracy.
How does Charger Armor™ function in CY8CTMA140-LQI-01T?
Charger Armor™ uses real-time spectral analysis to detect switching noise harmonics from wall adapters, then dynamically shifts the sensor's scan frequency away from interfered bands. This occurs autonomously during operation without host CPU involvement or firmware updates.
Is CY8CTMA140-LQI-01T still in active production?
Although the summary datasheet (001-91025 Rev. *A) is marked obsolete, CY8CTMA140-LQI-01T remains orderable through authorized distributors and Aetrix Electronics with confirmed inventory. Cypress/Infineon maintains legacy support per its product discontinuance policy, including PCN notifications and last-time-buy windows.
CY8CTMA140-LQI-01T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- *
- Package/Case:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Applications:
- -
- Core Processor:
- -
- Program Memory Type:
- -
- Controller Series:
- -
- RAM Size:
- -
- Interface:
- -
- Number of I/O:
- -
- Voltage - Supply:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
CY8CTMA140-LQI-01T FAQ
1.How can I place an order for CY8CTMA140-LQI-01T through Aetrix?
Please submit a Request for Quotation (RFQ) for CY8CTMA140-LQI-01T 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 CY8CTMA140-LQI-01T reliable?
The price and inventory of CY8CTMA140-LQI-01T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY8CTMA140-LQI-01T is usually 5 days.
3.What payment methods are accepted for CY8CTMA140-LQI-01T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY8CTMA140-LQI-01T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY8CTMA140-LQI-01T?
CY8CTMA140-LQI-01T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY8CTMA140-LQI-01T 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 CY8CTMA140-LQI-01T?
For technical support, including CY8CTMA140-LQI-01T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY8CTMA140-LQI-01T requirements.
6.How does Aetrix verify that CY8CTMA140-LQI-01T is sourced from the original manufacturer or authorized distributors?
All CY8CTMA140-LQI-01T 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 CY8CTMA140-LQI-01T meets industry standards.
7.What is the process for return or replacement of CY8CTMA140-LQI-01T?
All CY8CTMA140-LQI-01T units undergo pre-shipment inspection (PSI). If there is an issue with CY8CTMA140-LQI-01T, 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 CY8CTMA140-LQI-01T part is unused and in its original packaging.
Return procedure for CY8CTMA140-LQI-01T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY8CTMA140-LQI-01T Tags
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CYPD3175-24LQXQ
Infineon Technologies
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SLB9672VU20FW1523XTMA1
Infineon Technologies
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CYPD3125-40LQXIT
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AT97SC3204-U2A1A-20
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AT97SC3204-U2A1A-10
Microchip Technology
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SLM9670AQ20FW1311XTMA1
Infineon Technologies
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Infineon Technologies
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Infineon Technologies
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