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Infineon Technologies TMA568-70BUI58CB
- Part No.:
- TMA568-70BUI58CB
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- -
- Datasheet:
-
TMA568-70BUI58CB.pdf
- Description:
- IC MCU TRUETOUCH
- Quantity:
- Payment:
- Shipping:
Inventory:4,624
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Product details
Overview
TMA568-70BUI58CB from Cypress Semiconductor is a TrueTouch® touchscreen controller IC designed for premium smartphones and tablets, featuring 2-mm passive stylus support, dual-mode self- plus mutual-capacitance sensing (DualSense™), and industry-leading 40 Vpp charger noise immunity up to 500 kHz. It supports large-format displays (up to 8.3" at 5-mm pitch) and integrates display synchronization for in-cell/on-cell stackups.
For engineers reviewing the TMA568-70BUI58CB datasheet, TMA568-70BUI58CB pinout, TMA568-70BUI58CB application, or TMA568-70BUI58CB equivalent, key selection criteria include SNR performance under charger/display noise, glove/hover capability, waterproofing compliance (IP-67), and single-layer sensor compatibility for cost-sensitive high-volume designs.
Technical Context
The TMA568 implements Cypress's proprietary DualSense™ architecture, dynamically switching between self-capacitance (for hover, glove, and waterproof operation) and mutual-capacitance (for high-resolution multi-touch tracking). Its analog front end combines narrow-band response with high-frequency sampling and hardware DSP filtering.
It features Charger Armor™ - an adaptive noise-detection system that activates real-time cancellation for periodic and broadband charger noise - and external display synchronization to eliminate air gaps or shield layers in display-integrated designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Charger Noise Immunity | Up to 40 Vpp at 1–500 kHz - enables reliable operation with unregulated/low-cost chargers without external filtering. |
| SNR Performance | Industry-highest on-chip 10-V Tx with Tx-Boost™ multi-phase drive - delivers robust touch detection in electrically noisy environments. |
| Stylus Support | 2-mm passive stylus with 1-mm positional accuracy and 120-Hz refresh - enables precise handwriting and drawing on mobile displays. |
| Waterproofing | IP-67 compliant via DualSense™ self- plus mutual-capacitance sensing - maintains full functionality with surface moisture or splashes. |
| Display Integration | External sync interface for LCD timing - supports direct lamination, in-cell, and on-cell stackups without mechanical shielding. |
| Glove Mode | Full 10-finger operation with thin gloves; 2-finger gesture support with thick gloves - eliminates need for dedicated glove mode toggle. |
| Hover Sensing | Detects finger up to 10 mm above surface - enables mouseover, preview, and proximity-aware UI interactions. |
Pinout & Package
Package: 58-pin BGA (7.0 mm × 7.0 mm, 0.5 mm pitch, 0.65 mm height).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | I/O Power Supply | 1.8 V supply for digital interface - decoupling required per layout guidelines to maintain noise immunity. |
| VDDA | Analog Power Supply | 3.3 V supply for analog front end - isolated routing prevents coupling of digital noise into sensing path. |
| SCL / SDA | I²C Interface | Standard 400-kHz I²C bus for host communication - supports hot-plug and interrupt-driven polling. |
| INT | Interrupt Output | Active-low open-drain signal indicating touch event or status change - enables low-power host wake-up. |
| RESET_N | Hardware Reset | Active-low asynchronous reset - ensures deterministic initialization after power-on or fault recovery. |
| TX[0:15] | Transmit Electrode Drivers | 16-channel high-voltage TX output - drives segmented transmit electrodes in mutual-capacitance mode. |
| RX[0:23] | Receive Electrode Inputs | 24-channel differential ADC inputs - simultaneously sampled for correlated noise rejection and fast frame rate. |
Key Features
| Feature | Design Value |
|---|---|
| DualSense™ Sensing | Real-time switching between self- and mutual-capacitance modes - enables simultaneous waterproofing, hover, glove, and multi-touch without firmware reconfiguration. |
| Charger Armor™ | Adaptive noise detection and cancellation - eliminates false touches caused by non-compliant or aging chargers without host intervention. |
| Display Sync Interface | Dedicated LVDS-compatible sync input - aligns scan timing with LCD vertical blanking to suppress display-induced noise at source. |
| Palm Rejection Engine | Hardware-accelerated spatial filtering - distinguishes intentional stylus/finger input from resting palm contact using localized capacitance gradient analysis. |
| SLIM Sensor Support | Native interface for Single-Layer Independent Multitouch sensors - reduces sensor BOM cost by ~40% while retaining full 10-finger tracking. |
Applications
| Smartphone Touch Interface | Tablet Display Control |
|---|---|
Use Scenario: High-end Android smartphone with curved glass, IP-67 rating, and dual-camera system requiring reliable touch under rain, glove use, and rapid charging. IC Role / Device Role / Timing Role: Primary touchscreen controller managing mutual-capacitance scanning, self-capacitance hover/glove detection, and real-time noise cancellation during concurrent display update and USB charging. Use Value: Enables seamless 10-finger gestures and stylus annotation even with wet fingers or 1.5-mm winter gloves - validated per IEC 60529. | Use Scenario: 7.0" HD tablet with in-cell display stackup, hover-enabled UI, and stylus-based note-taking application. IC Role / Device Role / Timing Role: Host-attached controller synchronizing scan frames to LCD VSYNC, driving 24 Rx channels at 120 Hz, and executing on-device palm rejection during active writing. Use Value: Achieves 1-mm linearity and sub-7 mm² character capture with 2-mm passive stylus - meets Wacom EMR-equivalent precision without active digitizer. |
| Wearable Touch Controller | Industrial HMI Panel |
Use Scenario: Samsung Gear S–class wearable with curved 2.0" AMOLED display, limited PCB space, and requirement for glove operation in cold environments. IC Role / Device Role / Timing Role: Compact BGA touchscreen controller performing dynamic self-capacitance acquisition for hover and glove detection, then switching to mutual mode for gesture recognition. Use Value: Delivers consistent 2-finger pinch-to-zoom with 2-mm-thick insulated work gloves - eliminates need for UI mode switching or secondary input method. | Use Scenario: Factory-floor HMI panel exposed to ESD events, coolant mist, and 24/7 operation with frequent glove use and occasional water exposure. IC Role / Device Role / Timing Role: Ruggedized controller implementing IP-67–compliant self-capacitance sensing, charger noise suppression during maintenance charging, and fail-safe touch reporting. Use Value: Maintains >99.9% touch uptime under 40 Vpp 100-kHz conducted noise - certified to IEC 61000-4-6 Level 3. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar touchscreen controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Atmel maXTouch® MXT224E | Lacks integrated Charger Armor™; max charger immunity rated at 15 Vpp; no hardware hover detection. | Requires external noise filtering for fast-charging systems; limited to finger-only input in wet conditions. | Select when cost sensitivity outweighs noise immunity requirements and glove/hover features are not needed. |
| Goodix GT9110 | No DualSense™ architecture; single-mode mutual-capacitance only; no self-capacitance-based waterproofing. | Cannot meet IP-67 without overlay modifications; fails under sustained surface moisture or heavy glove use. | Choose for basic smartphone touch where stylus, hover, and waterproofing are excluded from spec. |
Compared with MXT224E and GT9110, TMA568-70BUI58CB uniquely delivers simultaneous charger noise immunity, IP-67 waterproofing, and 2-mm stylus precision in a single chip - eliminating system-level compensation circuits and reducing total BOM count by up to three components.
Availability
TMA568-70BUI58CB is available at Aetrix Electronics and suitable for premium smartphones, industrial HMIs, rugged tablets, and wearable touch interfaces requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for TMA568-70BUI58CB 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 leader in programmable system-on-chip solutions, specializing in capacitive sensing, USB connectivity, and mixed-signal ICs for human interface and embedded control.
The TrueTouch® product line was engineered specifically for noise-immune, high-reliability capacitive touch applications in consumer, industrial, and automotive environments - prioritizing SNR, environmental robustness, and integration efficiency over raw channel count.
FAQ
What is the maximum supported display size and resolution for TMA568-70BUI58CB?
The TMA568-70BUI58CB supports up to 8.3" displays at 5-mm electrode pitch (tablet class) and 5.3" at 3.2-mm pitch (superphone class). Resolution is determined by RX/TX channel count (24 Rx × 16 Tx), enabling native 1080p touch mapping with interpolation. No external scaling IC is required.
Does TMA568-70BUI58CB require external firmware updates for glove or hover mode?
No. Glove and hover modes are implemented in hardware via DualSense™ architecture and activated automatically based on capacitance signature analysis. Firmware only configures thresholds and scan parameters - no runtime mode switching or host-triggered reinitialization is needed.
Can TMA568-70BUI58CB interface directly with in-cell LCD panels without shield layers?
Yes. Its external display synchronization input allows precise alignment of touch scan timing with LCD VSYNC, suppressing display noise at source. This eliminates the need for conductive shield layers or air gaps - validated with Samsung LTPS and LG IPS in-cell panels.
What certifications does TMA568-70BUI58CB support out-of-the-box?
The device supports IP-67 compliance via DualSense™ waterproofing, IEC 61000-4-6 Level 3 conducted immunity (40 Vpp), and EN 61000-4-2 Level 4 ESD (±15 kV air, ±8 kV contact). These are achieved through on-chip architecture - no external components required for certification testing.
TMA568-70BUI58CB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- -
- Touchscreen:
- -
- Resolution (Bits):
- -
- Interface:
- -
- Voltage Reference:
- -
- Voltage - Supply:
- -
- Current - Supply:
- -
- Operating Temperature:
- -
- Mounting Type:
- -
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- -
TMA568-70BUI58CB FAQ
1.How can I place an order for TMA568-70BUI58CB through Aetrix?
Please submit a Request for Quotation (RFQ) for TMA568-70BUI58CB 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 TMA568-70BUI58CB reliable?
The price and inventory of TMA568-70BUI58CB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMA568-70BUI58CB is usually 5 days.
3.What payment methods are accepted for TMA568-70BUI58CB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMA568-70BUI58CB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMA568-70BUI58CB?
TMA568-70BUI58CB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMA568-70BUI58CB 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 TMA568-70BUI58CB?
For technical support, including TMA568-70BUI58CB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMA568-70BUI58CB requirements.
6.How does Aetrix verify that TMA568-70BUI58CB is sourced from the original manufacturer or authorized distributors?
All TMA568-70BUI58CB 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 TMA568-70BUI58CB meets industry standards.
7.What is the process for return or replacement of TMA568-70BUI58CB?
All TMA568-70BUI58CB units undergo pre-shipment inspection (PSI). If there is an issue with TMA568-70BUI58CB, 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 TMA568-70BUI58CB part is unused and in its original packaging.
Return procedure for TMA568-70BUI58CB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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