My Inquiry
My Account
Infineon Technologies CYTMA448-70BUI58AE
- Part No.:
- CYTMA448-70BUI58AE
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 70-UFBGA
- Datasheet:
-
CYTMA448-70BUI58AE.pdf
- Description:
- IC MCU 32BIT 70BGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,854
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CYTMA448-70BUI58AE from Cypress Semiconductor is a multi-touch capacitive touchscreen controller featuring a 32-bit ARM Cortex™ CPU, configurable register set, and DualSense™ technology for water rejection and wet-finger tracking. It supports up to 58 sense pins (21 × 37 intersections), 10-finger reporting, 230 Hz refresh rate, and operates with 1.71–5.5 V digital supply and 2.65–5.5 V analog supply.
For engineers reviewing the CYTMA448-70BUI58AE datasheet, CYTMA448-70BUI58AE pinout, CYTMA448-70BUI58AE application, or CYTMA448-70BUI58AE equivalent, key selection criteria include its 70-ball BGA package, 58-sense-I/O configuration, 7.9-inch screen support, 20-Vpp charger noise immunity via ChargerArmor™, and glove/water rejection capability enabled by DualSense™ and automatic mode switching.
Technical Context
The CYTMA448-70BUI58AE implements mutual capacitance sensing with flexible TX/RX routing optimized for single-layer FPC designs. Its ARM Cortex™ CPU executes real-time touch processing firmware, enabling dynamic baseline tracking, large-object rejection, and fingernail detection without host intervention.
It integrates hardware-accelerated noise suppression including adaptive filtering for display interference and proprietary ChargerArmor™ circuitry that maintains SNR under 20 Vpp AC charger noise. The controller synchronizes with external displays and supports field upgrades via embedded bootloader.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Sense I/O Count | 58 pins - enables 7.9-inch diagonal touchscreens with 16:9 aspect ratio and 5-mm sensor pitch |
| Max Touch Points | 10 fingers - supports simultaneous multi-finger gestures in Android-based UIs |
| Refresh Rate | 230 Hz - ensures sub-13 ms first-touch response for low-latency user interaction |
| Charger Noise Immunity | 20 Vpp peak-to-peak - maintains stable operation during AT&T Zero charger events |
| Digital Supply Range | 1.71–5.5 V - compatible with 1.8 V, 3.3 V, and 5 V system rails |
| Analog Supply Range | 2.65–5.5 V - powers high-SNR TX drivers delivering effective 28-V drive amplitude |
| Avg Power Consumption | 8.5 mW - enables battery-powered portable devices with extended active touch duration |
Pinout & Package
70-ball 5.5 × 5.5 × 0.6-mm BGA package with 0.5-mm ball pitch, designed for high-density mobile PCB layouts and thermal performance in compact form factors.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | Digital I/O supply | Accepts 1.71–5.5 V; powers GPIO, I²C/SPI interface, and internal logic |
| VDDA | Analog supply | Supplies 2.65–5.5 V to TX drivers and sensing front-end for optimal SNR |
| SCL/SDA | I²C interface | Supports standard (100 kbps), fast (400 kbps), fast-plus (1 Mbps), and high-speed (3.4 Mbps) modes |
| SCLK/MOSI/MISO/SS | SPI interface | Enables up to 8 Mbps communication for high-throughput touch data streaming |
| INT | Interrupt output | Active-low signal indicating new touch data ready for host readout |
| RST | Hardware reset input | Asynchronous reset that clears internal state and reinitializes firmware |
| TX[0:20] | Transmit electrode drivers | 21 dedicated TX outputs supporting Manhattan, Diamond, SLIM®, and Totem-pole sensor patterns |
| RX[0:36] | Receive electrode inputs | 37 RX channels paired with TX to form 777 mutual-capacitance nodes (21 × 37) |
Key Features
| Feature | Design Value |
|---|---|
| DualSense™ technology | Enables concurrent water rejection and wet-finger tracking without sacrificing sensitivity or accuracy |
| ChargerArmor™ | Hardware-level noise cancellation maintaining touch fidelity under 20 Vpp charger interference |
| Glove mode auto-switching | Supports ≤1-mm thin gloves (10 fingers) and ≤5-mm thick gloves (2 fingers) without manual configuration |
| Flexible sensor pattern support | Interoperable with Manhattan, Diamond, SLIM®, Totem-pole, SOL, on-cell, in-cell, PET, glass, metal mesh, LCD, AMOLED, and IPS stackups |
| Field-upgradable firmware | Bootloader-enabled over I²C/SPI allows runtime updates without hardware rework or factory reflashing |
Applications
| Smartphone Touch Interface | Tablet Human-Machine Interface |
|---|---|
Use Scenario: 7.9-inch 16:9 touchscreen in mid-tier Android tablet with metal chassis and USB-C charging. IC Role / Device Role / Timing Role: Primary mutual-capacitance controller managing all touch events, synchronizing with display frame timing, and suppressing charger-induced noise. Use Value: Maintains reliable 10-finger gesture recognition despite 20 Vpp charger noise and supports wet-finger input during outdoor use. | Use Scenario: Portable medical tablet used in clinical environments where gloves and disinfectant exposure are routine. IC Role / Device Role / Timing Role: Touch controller with automatic glove-mode activation and self-calibrating baseline tracking across temperature/humidity shifts. Use Value: Enables seamless operation with both thin surgical gloves (10-finger) and thicker exam gloves (2-finger), eliminating manual mode switching. |
| Industrial HMI Panel | Automotive Infotainment Display |
Use Scenario: 7.2-inch ruggedized HMI in factory automation cabinet exposed to EMI from nearby motors and variable ambient lighting. IC Role / Device Role / Timing Role: Robust touch acquisition engine with large-object rejection, grip suppression, and adaptive baseline correction. Use Value: Rejects accidental palm contact and maintains accuracy under wide operating temperature range (−40°C to +85°C). | Use Scenario: In-dash infotainment display with integrated AMOLED panel and QC3.0 fast-charging circuitry. IC Role / Device Role / Timing Role: Touch controller synchronized to display VSYNC, rejecting switching noise from DC-DC converters and USB-PD chargers. Use Value: Delivers jitter-free swipe response at 230 Hz while sustaining operation under 20 Vpp conducted noise from automotive power systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-touch capacitive controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SYNAPTICS TMA448-70BUI58AE | Same base silicon and firmware architecture; identical pinout and electrical specs; differentiated only by branding and calibration firmware signature | No functional difference; validated for same 7.9-inch touchscreen configurations and glove/water rejection use cases | Select when Synaptics-branded supply chain integration or legacy driver compatibility is required |
| GOODIX GT9110 | Lower sense count (52 I/O), no ChargerArmor™ hardware, 150 Hz max refresh, 12 Vpp charger immunity | Limited to ≤6.5-inch screens; requires external noise filtering for robust USB-C charger operation | Choose for cost-sensitive consumer electronics where full 20 Vpp immunity and 7.9-inch scaling are not required |
Compared with SYNAPTICS TMA448-70BUI58AE, this Cypress part offers identical functionality but distinct firmware signing and ecosystem tooling; versus GT9110, it delivers higher SNR, larger screen scalability, and certified charger noise resilience critical for premium portable devices.
Availability
CYTMA448-70BUI58AE is available at Aetrix Electronics and suitable for smartphone touch interfaces, industrial HMI panels, medical tablets, and automotive infotainment displays requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for CYTMA448-70BUI58AE 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 embedded control, connectivity, and human interface applications.
The CYTMA448 product line targets high-reliability capacitive touch systems demanding robust noise immunity, flexible sensor compatibility, and field-upgradable intelligence - specifically for mobile, medical, and industrial touchscreen platforms.
FAQ
What is the maximum supported touchscreen size for CYTMA448-70BUI58AE?
The CYTMA448-70BUI58AE supports up to 7.9-inch diagonal touchscreens with 16:9 aspect ratio using a 5-mm sensor pitch. This configuration maps directly to its 58-sense-I/O capability (21 TX × 37 RX = 777 nodes) and is validated for mutual capacitance operation in production designs.
Does CYTMA448-70BUI58AE require external components for charger noise suppression?
No. ChargerArmor™ is implemented as on-die hardware circuitry; no external filters, ferrites, or shielding components are required to achieve 20 Vpp peak-to-peak immunity. The feature operates autonomously during active touch scanning without host configuration or firmware overhead.
Can CYTMA448-70BUI58AE operate with both thin and thick gloves simultaneously?
No. The device automatically detects glove presence and thickness via capacitive signature analysis, then selects either thin-glove mode (10-finger support, ≤1 mm) or thick-glove mode (2-finger support, ≤5 mm). Mode switching is instantaneous and transparent to the host system.
Is Android driver support included with CYTMA448-70BUI58AE?
Yes. Cypress provides production-ready, Linux-based Android touch drivers (AOSP-compatible) with HAL integration, gesture engine support, and calibration utilities. Driver packages include source code, build scripts, and validation test reports for Android 6.0 through 12.0.
CYTMA448-70BUI58AE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 70-UFBGA
- 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:
- 70-BGA (5.5x5.5)
CYTMA448-70BUI58AE FAQ
1.How can I place an order for CYTMA448-70BUI58AE through Aetrix?
Please submit a Request for Quotation (RFQ) for CYTMA448-70BUI58AE 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 CYTMA448-70BUI58AE reliable?
The price and inventory of CYTMA448-70BUI58AE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYTMA448-70BUI58AE is usually 5 days.
3.What payment methods are accepted for CYTMA448-70BUI58AE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYTMA448-70BUI58AE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYTMA448-70BUI58AE?
CYTMA448-70BUI58AE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYTMA448-70BUI58AE 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 CYTMA448-70BUI58AE?
For technical support, including CYTMA448-70BUI58AE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYTMA448-70BUI58AE requirements.
6.How does Aetrix verify that CYTMA448-70BUI58AE is sourced from the original manufacturer or authorized distributors?
All CYTMA448-70BUI58AE 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 CYTMA448-70BUI58AE meets industry standards.
7.What is the process for return or replacement of CYTMA448-70BUI58AE?
All CYTMA448-70BUI58AE units undergo pre-shipment inspection (PSI). If there is an issue with CYTMA448-70BUI58AE, 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 CYTMA448-70BUI58AE part is unused and in its original packaging.
Return procedure for CYTMA448-70BUI58AE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CYTMA448-70BUI58AE Tags
-
TSC2046IPWR
Texas Instruments
-
TSC2007IPWR
Texas Instruments
-
TSC2046EIPWR
Texas Instruments
-
AR1021-I/SS
Microchip Technology
-
AR1020-I/SS
Microchip Technology
-
AR1100-I/MQ
Microchip Technology
-
AR1021T-I/ML
Microchip Technology
-
AR1100T-I/SS
Microchip Technology
-
TSC2003IPWR
Texas Instruments
-
TSC2004IRTJR
Texas Instruments
-
AR1100BRD
Microchip Technology
.jpg)
-
TSC2046IRGVR
Texas Instruments
Tech Hub
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
