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Infineon Technologies TMA568-70BUI58CBT
- Part No.:
- TMA568-70BUI58CBT
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- -
- Datasheet:
-
TMA568-70BUI58CBT.pdf
- Description:
- IC MCU TRUETOUCH
- Quantity:
- Payment:
- Shipping:
Inventory:1,733
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Product details
Overview
TMA568-70BUI58CBT from Cypress Semiconductor is a TrueTouch® touchscreen controller IC designed for premium smartphones and tablets. It supports 5.3" superphones (3.2-mm pitch) and 8.3" tablets (5-mm pitch), delivers 40 Vpp charger noise immunity up to 500 kHz, achieves industry-leading SNR via multi-phase TX and correlated scanning, and enables 2-mm passive stylus input with palm rejection.
For engineers reviewing the TMA568-70BUI58CBT datasheet, TMA568-70BUI58CBT pinout, TMA568-70BUI58CBT application, or TMA568-70BUI58CBT equivalent, key selection criteria include integrated display noise cancellation, DualSense™ self-plus mutual-capacitance architecture for waterproofing and glove/hover operation, and SLIM sensor compatibility for single-layer cost reduction.
Technical Context
The TMA568 implements Cypress's patented DualSense™ architecture, dynamically switching between self- and mutual-capacitance measurement modes to support simultaneous glove, hover (up to 10 mm), and waterproof (IP-67) operation. Its analog front end combines narrow-band response with high-frequency sampling and hardware DSP filtering.
It features Charger Armor™ adaptive noise suppression, external display synchronization for in-cell/on-cell stackups, and simultaneous Rx-line scanning across all ADC channels to enable correlated noise immunity-critical for operation under 40 Vpp charger interference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Screen Size | 8.3" tablet at 5-mm pitch; enables thin, direct-lamination form factors without air gaps or shielding layers |
| Charger Noise Immunity | Up to 40 Vpp, 1–500 kHz; eliminates false touches during fast charging without external filtering |
| Stylus Support | 2-mm passive stylus with 1-mm positional accuracy and 120-Hz refresh; enables handwriting capture of 7 mm² characters |
| Waterproof Rating | IP-67 compliant via DualSense architecture; maintains full functionality with surface moisture or splashes |
| Glove Operation | Full 10-finger touch with thin gloves; automatic mode-switching between finger/glove input without host intervention |
| Hover Sensing | Detects finger up to 10 mm above surface; enables mouseover UI interactions without physical contact |
Pinout & Package
Package: 128-pin BGA (7.0 mm × 7.0 mm, 0.5 mm pitch), RoHS-compliant, thermally enhanced for mobile touchscreen applications.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | I/O Power Supply | 1.8 V supply for digital interface; decoupling required for noise-sensitive I²C/SPI communication |
| VDDA | Analog Power Supply | 3.3 V supply for analog front end; isolated routing prevents coupling into sensing circuitry |
| SCL/SDA | I²C Interface | Standard-mode I²C bus (up to 400 kHz); supports host processor polling and interrupt-driven reporting |
| INT | Interrupt Output | Active-low open-drain signal indicating touch event or status change; drives host wake-up logic |
| RESET | Hardware Reset Input | Asynchronous active-low reset; initiates full calibration and firmware reload sequence |
| TX[0:15] | Transmit Electrode Drivers | 16-channel multi-phase TX output; enables high-SNR correlated scanning and charger noise cancellation |
| RX[0:23] | Receive Electrode Inputs | 24-channel differential RX inputs; simultaneously sampled for real-time noise correlation and mutual-capacitance decoding |
Key Features
| Feature | Design Value |
|---|---|
| DualSense™ Sensing | Dynamic self-/mutual-capacitance mode switching enables waterproofing, hover, and glove operation in one IC without firmware reconfiguration |
| Charger Armor™ | Adaptive detection and suppression of periodic/broadband charger noise up to 40 Vpp, eliminating need for external EMI filters |
| Display Noise Cancellation | External sync interface synchronizes scanning to LCD frame rate, removing requirement for shield layers or air gaps in in-cell designs |
| SLIM Sensor Support | Native compatibility with Single-Layer Independent Multitouch sensors reduces sensor layer count by 50%, cutting material cost by ~40% |
Applications
| Smartphone Touch Interface | Tablet Human-Machine Interface |
|---|---|
Use Scenario: High-resolution 6.44" HD smartphone (e.g., ZTE Nubia X6) requiring reliable multi-touch under fast charging and wet conditions. IC Role / Device Role / Timing Role: Primary touchscreen controller managing mutual-capacitance scanning, self-capacitance fallback, and real-time noise correlation. Use Value: Maintains 10-finger tracking accuracy and IP-67 compliance while enabling 2-mm stylus annotation without added sensor layers. | Use Scenario: 7.0" Huawei X1 tablet supporting hover gestures, glove input, and LCD-integrated on-cell stackup. IC Role / Device Role / Timing Role: Host-attached controller providing synchronized display noise cancellation and dynamic mode switching for dual-input modalities. Use Value: Eliminates need for mechanical buttons or secondary input devices by delivering robust hover-to-touch transition and palm rejection at system level. |
| Wearable Touch Display | Industrial Control Panel |
Use Scenario: Samsung Gear S wristwatch with curved 1.63" AMOLED display operating under RF-rich environments and variable ambient moisture. IC Role / Device Role / Timing Role: Low-power capacitive controller executing correlated scanning at reduced frame rates to extend battery life while preserving SNR. Use Value: Enables continuous glove operation and splash resistance without sacrificing touch latency or power budget. | Use Scenario: Factory-floor HMI panel exposed to ESD, conductive dust, and 24/7 operation with operator gloves. IC Role / Device Role / Timing Role: Ruggedized controller performing self-calibration during idle cycles and rejecting common-mode noise from nearby motor drives. Use Value: Delivers deterministic touch response and zero false triggers despite 40 Vpp industrial charger transients and unshielded cabling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar touchscreen controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CapSense® CSD91600 | Single-chip PSoC-based solution with programmable analog/digital resources; lower SNR (22 dB vs. TMA568's >30 dB), no native hover or IP-67 support | Targeted at cost-sensitive consumer electronics with basic 5-finger touch; lacks charger armor and display sync interfaces | Select when firmware flexibility and mixed-signal integration outweigh noise immunity requirements |
| Atmel maXTouch® MXT224E | Legacy 224-node controller; supports only mutual-capacitance; no self-capacitance mode, glove/hover, or 40 Vpp charger immunity | Used in older-generation tablets; requires external noise mitigation and cannot meet IP-67 without mechanical redesign | Choose only for legacy design refresh where board space and BOM constraints prohibit migration to newer architectures |
Compared with CSD91600 and MXT224E, the TMA568-70BUI58CBT uniquely integrates adaptive charger noise suppression, dual-mode capacitance sensing, and display-sync capability-enabling thinner, more robust, and feature-rich touch interfaces without system-level compromises.
Availability
TMA568-70BUI58CBT is available at Aetrix Electronics and suitable for premium smartphone development, industrial HMIs, wearable displays, and medical-grade touch panels requiring stable component supply and long-term lifecycle assurance.
Supply support for TMA568-70BUI58CBT 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 high-performance mixed-signal ICs for human interface, connectivity, and memory applications.
The TrueTouch® product line was engineered specifically for noise-immune, high-reliability capacitive touch control in mobile, wearable, and industrial environments-prioritizing SNR, environmental robustness, and integration efficiency over raw node count.
FAQ
What is the maximum supported electrode count for TMA568-70BUI58CBT?
The TMA568 supports up to 16 transmit (TX) and 24 receive (RX) electrodes, enabling configurations up to 384 nodes. This matches the 8.3" tablet specification at 5-mm pitch and allows flexible layout for curved or asymmetric displays without firmware modification.
Does TMA568-70BUI58CBT require external memory for firmware storage?
No. The device integrates on-chip ROM for boot code and flash memory for user-configurable firmware and tuning parameters. Field updates are performed via I²C without external memory components, reducing BOM count and PCB footprint.
How does Charger Armor™ differ from standard hardware filtering?
Charger Armor™ is adaptive-it detects charger presence and frequency content in real time, then activates proprietary multi-phase TX modulation and correlated sampling algorithms. Unlike fixed filters, it suppresses both periodic (e.g., 100/120 Hz ripple) and broadband noise (e.g., SMPS switching harmonics) without degrading touch sensitivity.
Can TMA568-70BUI58CBT drive in-cell LCD stackups without additional timing controllers?
Yes. It provides dedicated SYNC_IN and SYNC_OUT pins for direct frame-rate synchronization with LCD timing controllers. This eliminates the need for external timing bridges or software-based resampling, enabling true in-cell integration with minimal host processor overhead.
TMA568-70BUI58CBT 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:
- -
TMA568-70BUI58CBT FAQ
1.How can I place an order for TMA568-70BUI58CBT through Aetrix?
Please submit a Request for Quotation (RFQ) for TMA568-70BUI58CBT 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 TMA568-70BUI58CBT reliable?
The price and inventory of TMA568-70BUI58CBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TMA568-70BUI58CBT is usually 5 days.
3.What payment methods are accepted for TMA568-70BUI58CBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TMA568-70BUI58CBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TMA568-70BUI58CBT?
TMA568-70BUI58CBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TMA568-70BUI58CBT 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 TMA568-70BUI58CBT?
For technical support, including TMA568-70BUI58CBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TMA568-70BUI58CBT requirements.
6.How does Aetrix verify that TMA568-70BUI58CBT is sourced from the original manufacturer or authorized distributors?
All TMA568-70BUI58CBT 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 TMA568-70BUI58CBT meets industry standards.
7.What is the process for return or replacement of TMA568-70BUI58CBT?
All TMA568-70BUI58CBT units undergo pre-shipment inspection (PSI). If there is an issue with TMA568-70BUI58CBT, 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 TMA568-70BUI58CBT part is unused and in its original packaging.
Return procedure for TMA568-70BUI58CBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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