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Infineon Technologies CYTMA525-49FNI25ZZT
- Part No.:
- CYTMA525-49FNI25ZZT
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 49-UFBGA, WLCSP
- Datasheet:
-
CYTMA525-49FNI25ZZT.pdf
- Description:
- IC MCU 32BIT 49WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,902
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Product details
Overview
CYTMA525-49FNI25ZZT from Cypress Semiconductor is a TrueTouch® multi-touch all-points touchscreen controller featuring a 32-bit ARM Cortex™ CPU, configurable register set, and DualSense™ water/wet-finger tracking. It supports up to 25 sense pins (14 × 11 intersection), 4-finger reporting, 300-Hz refresh rate, and operates with 1.71–5.5-V digital supply and 2.65–5.5-V analog supply for 3.0-inch diagonal touchscreens.
For engineers reviewing the CYTMA525-49FNI25ZZT datasheet, CYTMA525-49FNI25ZZT pinout, CYTMA525-49FNI25ZZT application, or CYTMA525-49FNI25ZZT equivalent, key selection criteria include I²C/SPI interface support, 49-ball WLCSP package compatibility, ChargerArmor™ noise immunity (up to 60 VPP), glove/stylus/hover tracking capability, and low-power deep-sleep mode (4.5 µW).
Technical Context
The CYTMA525-49FNI25ZZT implements a self-capacitive + mutual-capacitive sensing architecture with dedicated hardware acceleration for baseline tracking, large-object rejection, and wet-finger compensation. Its ARM Cortex™ CPU executes firmware for real-time touch processing, including DualSense™ dual-mode signal analysis and automatic mode switching between bare-finger, gloved, and stylus inputs.
It integrates TX slew-rate control, configurable TX frequency (up to 500 kHz), and external display synchronization to minimize LCD-induced noise. The controller uses adaptive noise suppression tuned for battery charger interference, achieving ≤13-ms first-touch latency and stable operation under 60-VPP charger noise.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sense Pins | 25 - Supports 14 × 11 mutual-capacitive sensor grid for full-screen coverage on 3.0-inch 4:3 displays |
| Max Touch Points | 4 - Simultaneous finger tracking with independent X/Y coordinate resolution per point |
| Refresh Rate | Up to 300 Hz - Enables responsive UI interaction with sub-3.4-ms frame time |
| Digital Supply Range | 1.71–5.5 V - Compatible with single-supply SoC interfaces and wide-battery-voltage systems |
| Analog Supply Range | 2.65–5.5 V - Powers high-SNR TX driver stage delivering effective 28-V drive amplitude |
| Deep-Sleep Power | 4.5 µW - Sustains ultra-low-power look-for-touch mode without host wake-up overhead |
| Charger Noise Immunity | Up to 60 VPP - Maintains tracking integrity during fast-charging with AT&T Zero/Duracell adapters |
Pinout & Package
49-ball 3.085 × 3.25 × 0.55-mm Wafer-Level Chip Scale Package (WLCSP) with 0.4-mm ball pitch. Ball map defined in Cypress Document Number 001-90979 Rev. *A, Section 5 "Pin Assignments".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | Digital I/O Supply | 1.71–5.5-V rail powering GPIOs, I²C/SPI interface, and interrupt logic |
| VDDA | Analog Supply | 2.65–5.5-V rail powering TX drivers, RX amplifiers, and ADC reference |
| SDA / SCL | I²C Data/Clock | Supports standard/fast/fast-plus/high-speed modes (100 kbps–3.4 Mbps) for host communication |
| MOSI / MISO / SCLK / SS | SPI Interface | Full-duplex SPI slave supporting up to 10 Mbps for high-bandwidth firmware updates or debug streaming |
| INT | Interrupt Output | Active-low open-drain signal indicating new touch data ready or system event (e.g., hover detection) |
| RESET | Hardware Reset Input | Asynchronous active-low reset enabling deterministic initialization after power-on or fault recovery |
Key Features
| Feature | Design Value |
|---|---|
| DualSense™ Technology | Simultaneous self- and mutual-capacitance measurement enables robust wet-finger tracking and water rejection without calibration |
| ChargerArmor™ | Hardware-accelerated noise cancellation maintains SNR under 60-VPP charger interference, eliminating software filtering latency |
| Glove & Stylus Mode Switching | Automatic detection and seamless transition between bare-finger, 1–3 mm glove, and passive stylus input without host intervention |
| External Display Sync | Sync input pin aligns TX bursts with LCD vertical blanking to suppress display-induced coupling noise |
| Field Upgrade via Bootloader | Secure in-system firmware update over I²C/SPI preserves factory calibration and avoids rework during production or field deployment |
Applications
| Smartphone Front Panel | Industrial HMI Display |
|---|---|
Use Scenario: Capacitive touchscreen on 3.0-inch smartphone front panel with AMOLED display and USB-C fast charging. IC Role / Device Role / Timing Role: All-points mutual-capacitive controller performing real-time touch coordinate extraction, noise suppression, and host-interrupt signaling. Use Value: Maintains reliable finger tracking during 60-VPP charger noise and supports wet-finger operation without false triggers. | Use Scenario: Ruggedized handheld terminal used in warehouse logistics with frequent glove use and variable ambient lighting. IC Role / Device Role / Timing Role: Multi-mode touch processor enabling automatic switch between bare-finger, 2-mm synthetic glove, and passive stylus inputs. Use Value: Eliminates manual mode selection; delivers consistent 4-point tracking across input types with <13-ms first-touch latency. |
| Medical Diagnostic Tablet | Automotive Infotainment Panel |
Use Scenario: Portable ultrasound tablet requiring sterile-glove operation and high-precision stylus annotation. IC Role / Device Role / Timing Role: Dual-sensing controller executing calibrated stylus tip detection and large-object rejection to ignore palm rests. Use Value: Enables sub-4-mm stylus tip resolution and rejects >30-mm objects while maintaining 300-Hz UI responsiveness. | Use Scenario: In-vehicle infotainment display exposed to wide temperature swings and condensation. IC Role / Device Role / Timing Role: Environmental-adaptive touch engine performing automatic baseline tracking and water rejection. Use Value: Sustains accurate touch reporting through condensation events and thermal drift without recalibration. |
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 | 24-sense-pin limit; no native glove/stylus auto-switch; 400-kHz max TX frequency | Targeted at cost-sensitive consumer panels without wet/frozen environment requirements | Select when 3.0-inch screen size and basic 4-finger tracking suffice without ChargerArmor™ or DualSense™ |
| ATMEL MAXT336 | ARM Cortex-M0+ core; 32-sense-pin support; no integrated display sync input | Optimized for larger panels (≥4.3-inch); requires external noise mitigation for fast-charging environments | Select for scalable designs beyond 3.0-inch where higher pin count and lower power (2.8 µW deep sleep) are prioritized |
Compared with TMA388 and MAXT336, CYTMA525-49FNI25ZZT uniquely combines 25-sense-pin density, hardware-level charger noise immunity (60 VPP), and automatic multi-input mode switching-enabling robust operation in compact, high-noise, and mixed-input industrial and medical touch systems.
Availability
CYTMA525-49FNI25ZZT is available at Aetrix Electronics and suitable for smartphone front panels, industrial HMI displays, medical diagnostic tablets, and automotive infotainment panels requiring stable component supply and long-term lifecycle support.
Supply support for CYTMA525-49FNI25ZZT 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 high-performance mixed-signal ICs for touch sensing, USB connectivity, programmable systems-on-chip, and memory solutions.
The CYTMA525 belongs to the TrueTouch® Advanced family, engineered specifically for compact, noise-immune, multi-input capacitive touch interfaces in space-constrained portable and ruggedized devices.
FAQ
What is the maximum supported electrode pitch for CYTMA525-49FNI25ZZT?
The CYTMA525-49FNI25ZZT supports up to 4.3-mm electrode pitch for 3.0-inch diagonal 4:3 aspect ratio displays. Larger pitches may be used for bigger screens, but require firmware tuning and sensor layout validation per Cypress Application Note AN95177.
Does CYTMA525-49FNI25ZZT support Android 12+ HAL integration out of the box?
Yes-it includes certified Android™ touch driver support compliant with Android Open Source Project (AOSP) touch HAL v1.2+, validated on Android 10 through 13. Driver source and integration guide are provided in Cypress's TrueTouch Android SDK v3.2.1.
Can the 49-ball WLCSP package be hand-soldered for prototype evaluation?
No-the 0.4-mm ball pitch and 0.55-mm profile require precision reflow with controlled thermal profile and stencil-applied solder paste. Cypress recommends using the CY8CKIT-047 development kit or partnering with qualified assembly houses for prototyping.
Is external crystal required for CYTMA525-49FNI25ZZT timing accuracy?
No-internal RC oscillator provides sufficient timing stability for touch scanning. An external crystal is optional and only needed if system-level synchronization with display VSYNC or precise clock domain alignment is required per design specification.
CYTMA525-49FNI25ZZT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 49-UFBGA, WLCSP
- 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:
- 49-WLCSP (3.09x3.25)
CYTMA525-49FNI25ZZT FAQ
1.How can I place an order for CYTMA525-49FNI25ZZT through Aetrix?
Please submit a Request for Quotation (RFQ) for CYTMA525-49FNI25ZZT 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 CYTMA525-49FNI25ZZT reliable?
The price and inventory of CYTMA525-49FNI25ZZT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYTMA525-49FNI25ZZT is usually 5 days.
3.What payment methods are accepted for CYTMA525-49FNI25ZZT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYTMA525-49FNI25ZZT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYTMA525-49FNI25ZZT?
CYTMA525-49FNI25ZZT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYTMA525-49FNI25ZZT 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 CYTMA525-49FNI25ZZT?
For technical support, including CYTMA525-49FNI25ZZT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYTMA525-49FNI25ZZT requirements.
6.How does Aetrix verify that CYTMA525-49FNI25ZZT is sourced from the original manufacturer or authorized distributors?
All CYTMA525-49FNI25ZZT 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 CYTMA525-49FNI25ZZT meets industry standards.
7.What is the process for return or replacement of CYTMA525-49FNI25ZZT?
All CYTMA525-49FNI25ZZT units undergo pre-shipment inspection (PSI). If there is an issue with CYTMA525-49FNI25ZZT, 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 CYTMA525-49FNI25ZZT part is unused and in its original packaging.
Return procedure for CYTMA525-49FNI25ZZT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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