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Infineon Technologies CYTMA545-48LQI36ZZAT
- Part No.:
- CYTMA545-48LQI36ZZAT
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 48-UFQFN Exposed Pad
- Datasheet:
-
CYTMA545-48LQI36ZZAT.pdf
- Description:
- IC MCU 32BIT 48QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,160
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Product details
Overview
CYTMA545-48LQI36ZZAT from Cypress Semiconductor is a 32-bit ARM Cortex™-based multi-touch all-points touchscreen controller with 36 sense pins, 10-finger tracking, DualSense™ water/wet-finger rejection, and full glove/stylus/hover/face detection support. It delivers up to 300 Hz refresh rate, 500 kHz TX frequency, and operates from 1.71–5.5 V digital supply and 2.65–5.5 V analog supply for 5.0-inch diagonal touchscreens using 4.8-mm sensor pitch.
For engineers reviewing the CYTMA545-48LQI36ZZAT datasheet, CYTMA545-48LQI36ZZAT pinout, CYTMA545-48LQI36ZZAT application, or CYTMA545-48LQI36ZZAT equivalent, key selection criteria include its 48-pin QFN package, ChargerArmor™ noise immunity (up to 60 VPP), 5.6-mW average power, I²C/SPI interface support, and factory-programmed custom feature set (ZZA variant).
Technical Context
The CYTMA545-48LQI36ZZAT implements a self-capacitive + mutual-capacitive hybrid sensing architecture with configurable TX/RX routing for single-layer FPC designs. Its ARM Cortex™ CPU executes real-time touch firmware with automatic baseline tracking, fast first-touch response (≤13 ms), and field-upgradable bootloader.
It integrates dedicated hardware blocks for DualSense™ wet-finger discrimination, ChargerArmor™ adaptive noise cancellation synchronized to charger ripple, and SLIM®/Manhattan/diamond sensor pattern support across PET/glass substrates and LCD/AMOLED displays.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sense Pins | 36 - enables 299-intersection (23 × 13) sensor matrix for 5.0-inch 16:9 displays |
| Max Touch Points | 10 fingers - supports simultaneous multi-finger gestures including pinch-to-zoom and rotate |
| Refresh Rate | Up to 300 Hz - ensures low-latency UI responsiveness in high-speed scrolling or gaming |
| TX Frequency | Up to 500 kHz - improves SNR and enables robust operation under high-noise EMI environments |
| Digital Supply Range | 1.71–5.5 V - allows direct interfacing with 1.8 V, 3.3 V, or 5 V host systems without level shifters |
| Analog Supply Range | 2.65–5.5 V - powers high-voltage TX drivers delivering effective 28-V drive for enhanced signal integrity |
| Avg Power Consumption | 5.6 mW - enables battery-powered handheld devices to sustain >100 hours of active touch use |
Pinout & Package
48-pin 6 × 6 × 0.6-mm QFN package with 0.4-mm lead pitch, exposed thermal pad, and standard JEDEC MO-220 footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | Digital I/O supply | 1.71–5.5 V input powering GPIOs, I²C/SPI interface, and internal logic |
| VDDA | Analog supply | 2.65–5.5 V input for TX driver stage and ADC reference |
| VSS | Ground reference | Common return path for analog/digital domains; requires low-impedance PCB connection |
| SCL / SDA | I²C bus interface | Supports 100 kbps to 3.4 Mbps; compatible with standard Linux Android I²C drivers |
| MOSI / MISO / SCLK / SS | SPI slave interface | Full-duplex SPI up to 10 Mbps; enables high-throughput firmware updates and debug streaming |
| INT | Interrupt output | Active-low open-drain signal indicating new touch data ready for host read |
| RST | Hardware reset input | Asynchronous active-low reset; required for bootloader entry and recovery sequences |
| TPx / RXx | Touch sense inputs | 36 configurable sense pins supporting mutual/self-capacitance measurement per channel |
Key Features
| Feature | Design Value |
|---|---|
| DualSense™ water rejection | Enables reliable operation with wet fingers or condensation on screen surface without false triggers |
| ChargerArmor™ noise immunity | Suppresses interference from AT&T Zero/Duracell chargers up to 60 VPP peak-to-peak ripple |
| Glove mode auto-switching | Supports ≤1-mm thin gloves (10 fingers) and ≤5-mm thick gloves (2 fingers) without manual configuration |
| Passive stylus + palm rejection | Accurately tracks stylus tip while ignoring palm contact during note-taking or drawing |
| Face detection + grip suppression | Prevents accidental activation when device is held to ear or resting against cheek during calls |
Applications
| Smartphone UI Control | Tablet Navigation |
|---|---|
Use Scenario: User interacts with Android OS via multi-finger gestures, pinch zoom, and swipe navigation on 5.0-inch display. IC Role / Device Role / Timing Role: Primary touchscreen controller handling real-time mutual-capacitance scanning, gesture decoding, and I²C reporting at 300 Hz. Use Value: Fast first-touch response (≤13 ms) and 10-finger tracking ensure fluid UX even during complex multi-gesture input. | Use Scenario: User draws with passive stylus while resting palm on screen edge during creative applications. IC Role / Device Role / Timing Role: Stylus detection engine with integrated palm rejection and hover sensing for precise input separation. Use Value: Eliminates need for external palm-rejection hardware; reduces BOM cost and layout complexity. |
| Industrial Handheld Terminal | Medical Tablet Interface |
Use Scenario: Technician wears nitrile gloves (≤1 mm) while operating ruggedized handheld in warehouse environment. IC Role / Device Role / Timing Role: Auto-switching glove mode controller with environmental baseline tracking for stable operation across temperature/humidity shifts. Use Value: Maintains 10-finger accuracy without calibration; avoids workflow interruption due to touch failure. | Use Scenario: Nurse uses tablet with wet gloves or damp hands in clinical setting where sterilization is routine. IC Role / Device Role / Timing Role: DualSense™-enabled capacitive controller rejecting moisture-induced false touches while preserving finger tracking fidelity. Use Value: Prevents mis-taps during critical data entry; meets IEC 60601-1 usability requirements for medical devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-touch all-points controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SYNAPTICS TMA388-001 | 24-sense-pin limit; no built-in ChargerArmor™; max 5-finger tracking | Limited to sub-4.5-inch screens; lacks wet-finger/glove robustness | Select only for cost-sensitive, non-charger-noise environments with smaller displays |
| ATMEL MAXT336U | ARM Cortex-M0 core; 32-sense-pin max; no hover/facial detection | Requires external firmware for stylus/palm separation; no face detection for call suppression | Choose when deep integration with Atmel Studio toolchain is required and advanced gesture features are secondary |
Compared with SYNAPTICS TMA388-001 and ATMEL MAXT336U, CYTMA545-48LQI36ZZAT provides higher sense pin count (36), certified charger noise immunity, and factory-enabled ZZ-series features (hover, face, stylus, glove), making it uniquely suited for premium 5-inch mobile and medical-grade touch interfaces.
Availability
CYTMA545-48LQI36ZZAT is available at Aetrix Electronics and suitable for smartphone UI control, industrial handheld terminals, medical tablet interfaces, and ruggedized consumer electronics requiring stable component supply and long-term lifecycle support.
Supply support for CYTMA545-48LQI36ZZAT 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 Corporation, now part of Infineon Technologies, designs programmable system-on-chip solutions for embedded control, connectivity, and human interface applications.
The CYTMA545 belongs to the TrueTouch® family, engineered specifically for high-reliability capacitive touchscreens in mobile, medical, and industrial devices demanding robust noise immunity and multi-modal input support.
FAQ
What touchscreen sensor patterns does CYTMA545-48LQI36ZZAT support?
It supports Manhattan, diamond, and SLIM® sensor patterns on PET or glass substrates, including sensor-on-lens (SOL) and on-cell AMOLED/LCD integrations. The 36-sense-pin configuration enables 23 × 13 intersection matrices optimized for 5.0-inch 16:9 displays with 4.8-mm pitch.
Does CYTMA545-48LQI36ZZAT require external firmware development?
No - it ships with factory-programmed firmware enabling all ZZ-series features (hover, face detection, stylus, glove). Cypress provides Android and Windows Phone 8 drivers, MTK test kit, and CapSense® Tuner GUI for configuration without low-level code changes.
How does ChargerArmor™ function without host processor involvement?
ChargerArmor™ operates autonomously in hardware, synchronizing TX modulation to detected charger ripple frequency and dynamically adjusting gain/filtering. It achieves up to 60 VPP immunity without CPU cycles or host-triggered calibration, verified against AT&T Zero and Duracell chargers.
Is the 48-pin QFN package RoHS-compliant and lead-free?
Yes - CYTMA545-48LQI36ZZAT uses a lead-free, RoHS-compliant 6 × 6 × 0.6-mm QFN package with matte tin finish and JEDEC-standard reflow profile compatibility (J-STD-020D). The exposed thermal pad is designed for solder paste stencil optimization per IPC-7351B.
CYTMA545-48LQI36ZZAT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 48-UFQFN Exposed Pad
- Touchscreen:
- 2 Wire Capacitive
- Resolution (Bits):
- 32 b
- Interface:
- I2C, SPI
- Voltage Reference:
- -
- Voltage - Supply:
- 1.71V ~ 5.5V
- Current - Supply:
- -
- Operating Temperature:
- -
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 48-QFN (6x6)
CYTMA545-48LQI36ZZAT FAQ
1.How can I place an order for CYTMA545-48LQI36ZZAT through Aetrix?
Please submit a Request for Quotation (RFQ) for CYTMA545-48LQI36ZZAT 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 CYTMA545-48LQI36ZZAT reliable?
The price and inventory of CYTMA545-48LQI36ZZAT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYTMA545-48LQI36ZZAT is usually 5 days.
3.What payment methods are accepted for CYTMA545-48LQI36ZZAT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYTMA545-48LQI36ZZAT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYTMA545-48LQI36ZZAT?
CYTMA545-48LQI36ZZAT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYTMA545-48LQI36ZZAT 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 CYTMA545-48LQI36ZZAT?
For technical support, including CYTMA545-48LQI36ZZAT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYTMA545-48LQI36ZZAT requirements.
6.How does Aetrix verify that CYTMA545-48LQI36ZZAT is sourced from the original manufacturer or authorized distributors?
All CYTMA545-48LQI36ZZAT 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 CYTMA545-48LQI36ZZAT meets industry standards.
7.What is the process for return or replacement of CYTMA545-48LQI36ZZAT?
All CYTMA545-48LQI36ZZAT units undergo pre-shipment inspection (PSI). If there is an issue with CYTMA545-48LQI36ZZAT, 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 CYTMA545-48LQI36ZZAT part is unused and in its original packaging.
Return procedure for CYTMA545-48LQI36ZZAT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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