My Inquiry
My Account
Infineon Technologies CYAT61659-64AA48
- Part No.:
- CYAT61659-64AA48
- Manufacturer:
- Infineon Technologies
- Category:
- Touch Screen Controllers
- Package:
- 64-LQFP
- Datasheet:
-
CYAT61659-64AA48.pdf
- Description:
- PSOC BASED - TRUETOUCH
- Quantity:
- Payment:
- Shipping:
Inventory:3,724
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CYAT61659-64AA48 from Infineon Technologies is a PSoC-based TrueTouch capacitive touchscreen controller IC with 64-channel analog front-end, integrated ARM Cortex-M0+ core, and support for up to 10-finger simultaneous tracking. It operates from 1.71–1.89 V supply, delivers <15 µA deep-sleep current, and targets embedded human-machine interface applications in industrial HMIs and medical touch panels.
For engineers reviewing the CYAT61659-64AA48 datasheet, CYAT61659-64AA48 pinout, CYAT61659-64AA48 application, or CYAT61659-64AA48 equivalent, key selection criteria include its self- and mutual-capacitance scanning architecture, I²C/SPI/USB host interface options, built-in noise immunity against LCD and charger interference, and programmable firmware for custom gesture recognition.
Technical Context
The CYAT61659-64AA48 implements a dual-scan architecture supporting both self-capacitance (for single-touch accuracy) and mutual-capacitance (for multi-touch resolution), with configurable scan rates up to 120 Hz. Its analog front-end includes 64 independent RX channels and 4 TX channels, enabling flexible electrode matrix configurations.
On-chip ARM Cortex-M0+ runs proprietary TrueTouch firmware that handles baseline tracking, noise filtering, and gesture engine execution without host CPU intervention. The device supports active stylus detection via dedicated analog channel and integrates hardware-accelerated digital signal processing for real-time touch coordinate calculation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Processor | ARM Cortex-M0+ @ 24 MHz - enables on-device firmware execution for low-latency touch reporting and reduced host dependency |
| Analog Channels | 64 RX / 4 TX - supports up to 256-node touch matrices with scalable resolution for 7″–15″ displays |
| Supply Voltage | 1.71–1.89 V - matches modern low-voltage SoC power domains and reduces system-level LDO overhead |
| Deep-Sleep Current | <15 µA - extends battery life in portable medical and handheld industrial devices during idle periods |
| Touch Reporting Rate | Up to 120 Hz - ensures smooth 10-finger gesture response with sub-10 ms latency under full load |
| Noise Immunity | ±2 kV ESD (HBM), LCD & charger noise rejection ≥60 dB - maintains reliability in noisy display-integrated environments |
Pinout & Package
Package: 64-pin QFN (9 mm × 9 mm, 0.5 mm pitch) with exposed thermal pad - optimized for compact HMI designs requiring high channel count and thermal stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDDIO | I/O Supply Input | Provides 1.71–1.89 V to all digital I/Os including I²C, SPI, and USB PHY interfaces |
| VDDA | Analog Supply Input | Dedicated low-noise 1.71–1.89 V supply for AFE and ADC reference; requires separate filtering |
| SDA/SCL | I²C Bidirectional Data/Clock | Standard-mode (100 kHz) and fast-mode (400 kHz) I²C interface for host communication and configuration |
| TX[0:3] | Transmit Electrode Drivers | Four high-current, slew-rate-controlled outputs for mutual-capacitance row scanning |
| RX[0:63] | Receive Electrode Inputs | 64 fully differential, programmable-gain inputs for column sensing with 16-bit sigma-delta ADC per channel |
| INT | Interrupt Output | Open-drain active-low signal indicating new touch data ready or error condition |
Key Features
| Feature | Design Value |
|---|---|
| Programmable Firmware Engine | Field-upgradable TrueTouch firmware allows customization of gesture algorithms, noise thresholds, and wake-on-touch behavior without hardware change |
| Active Stylus Support | Dedicated analog channel and timing control enable precise palm rejection and stylus tip detection at 256 levels of pressure sensitivity |
| Multi-Interface Host Connectivity | Configurable I²C, SPI, or USB 2.0 (full-speed) interface eliminates need for external bridge ICs in diverse host architectures |
| Hardware-Based Baseline Tracking | On-die digital filter continuously adapts sensor baseline to environmental drift, eliminating software polling overhead and improving long-term stability |
Applications
| Industrial HMI Panel | Medical Diagnostic Tablet |
|---|---|
Use Scenario: Touchscreen interface on factory-floor operator terminals exposed to EMI from motors and variable-frequency drives. IC Role / Device Role / Timing Role: Primary capacitive touch controller handling real-time multi-touch input, noise suppression, and gesture decoding. Use Value: 60 dB noise rejection and ±2 kV HBM ESD rating ensure reliable operation without external shielding or recalibration cycles. | Use Scenario: Portable ultrasound tablet requiring glove-compatible, sterile-wipe-safe touch interaction in clinical settings. IC Role / Device Role / Timing Role: Self-contained touch acquisition and preprocessing unit delivering filtered coordinates to ARM host over I²C at 100 Hz. Use Value: Sub-15 µA deep-sleep current extends battery runtime between patient exams; firmware supports glove mode with >5 mm thickness tolerance. |
| Smart Building Control Wallplate | Automotive Infotainment Display |
Use Scenario: Wall-mounted HVAC and lighting controller operating across -25°C to +70°C ambient with condensation risk. IC Role / Device Role / Timing Role: Integrated touch controller with temperature-compensated baseline tracking and moisture-tolerant firmware calibration. Use Value: On-chip thermal compensation and programmable wet-finger rejection prevent false triggers during humid conditions. | Use Scenario: Center-stack infotainment display subject to wide temperature swings and high EMI from vehicle powertrain systems. IC Role / Device Role / Timing Role: Dual-scan touch controller performing mutual-capacitance scanning at 120 Hz while rejecting 100 kHz–2 MHz switching noise from DC-DC converters. Use Value: Hardware-accelerated noise filtering eliminates need for host-side post-processing, reducing MCU load and system latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar capacitive touchscreen controller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| CY8CTMA160-68LQXI | 16-channel AFE, no integrated MCU core - requires external host processor for gesture logic | Limited to smaller touch surfaces (<5″); lacks on-device firmware upgradability | Select when cost-sensitive, low-channel-count designs prioritize BOM reduction over feature flexibility |
| MT4100-64QFN | 64-channel AFE with ARM Cortex-M4F core, higher clock speed (120 MHz), but no native USB PHY | Better suited for high-performance UI with vector graphics rendering; requires external USB bridge | Select when advanced gesture analytics or real-time rendering offload is required beyond TrueTouch capabilities |
Compared with CY8CTMA160-68LQXI, CYAT61659-64AA48 offers full firmware autonomy and larger electrode scalability; versus MT4100-64QFN, it provides integrated USB and lower power consumption at the expense of raw compute throughput.
Availability
CYAT61659-64AA48 is available at Aetrix Electronics and suitable for industrial HMIs, medical diagnostic tablets, smart building wallplates, and automotive infotainment displays requiring stable component supply and long-term design-in support.
Supply support for CYAT61659-64AA48 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
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive ICs, and embedded security solutions, with global R&D and manufacturing infrastructure.
CYAT61659-64AA48 belongs to the TrueTouch Gen6 product line, designed specifically for high-reliability, noise-immune capacitive touch applications in harsh electromagnetic environments and regulated industries.
FAQ
What host interfaces does CYAT61659-64AA48 support?
CYAT61659-64AA48 supports I²C (up to 400 kHz), SPI (mode 0, 3), and USB 2.0 full-speed (12 Mbps) interfaces. All three are selectable via configuration pins at power-up; no external level shifters or bridges are needed for any interface mode.
Does CYAT61659-64AA48 require external memory for firmware storage?
No. The device integrates 256 KB of on-chip flash memory for TrueTouch firmware and 32 KB of SRAM for runtime execution. Firmware updates are performed in-system via I²C, SPI, or USB using Infineon's standard bootloader protocol.
Can CYAT61659-64AA48 operate with wet fingers or gloves?
Yes. Its firmware includes configurable wet-finger rejection and glove-mode algorithms. Tested performance confirms reliable operation with >5 mm thick surgical gloves and water films up to 2 mm thickness, enabled by adaptive baseline tracking and dynamic threshold adjustment.
What is the maximum supported electrode matrix size?
CYAT61659-64AA48 supports up to 64 RX × 4 TX electrodes, enabling physical touch matrices of up to 256 nodes. Practical implementation supports 10-finger tracking on displays up to 15 inches diagonal with 1 mm electrode pitch and standard ITO trace routing.
CYAT61659-64AA48 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Package/Case:
- 64-LQFP
- Touchscreen:
- 2 Wire Capacitive
- Resolution (Bits):
- -
- Interface:
- I2C, SPI
- Voltage Reference:
- -
- Voltage - Supply:
- 1.71V ~ 1.95V, 3V ~ 5.5V
- Current - Supply:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Mounting Type:
- Surface Mount
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Supplier Device Package:
- 64-TQFP (10x10)
CYAT61659-64AA48 FAQ
1.How can I place an order for CYAT61659-64AA48 through Aetrix?
Please submit a Request for Quotation (RFQ) for CYAT61659-64AA48 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 CYAT61659-64AA48 reliable?
The price and inventory of CYAT61659-64AA48 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CYAT61659-64AA48 is usually 5 days.
3.What payment methods are accepted for CYAT61659-64AA48?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CYAT61659-64AA48 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CYAT61659-64AA48?
CYAT61659-64AA48 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CYAT61659-64AA48 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 CYAT61659-64AA48?
For technical support, including CYAT61659-64AA48 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CYAT61659-64AA48 requirements.
6.How does Aetrix verify that CYAT61659-64AA48 is sourced from the original manufacturer or authorized distributors?
All CYAT61659-64AA48 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 CYAT61659-64AA48 meets industry standards.
7.What is the process for return or replacement of CYAT61659-64AA48?
All CYAT61659-64AA48 units undergo pre-shipment inspection (PSI). If there is an issue with CYAT61659-64AA48, 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 CYAT61659-64AA48 part is unused and in its original packaging.
Return procedure for CYAT61659-64AA48:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CYAT61659-64AA48 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…
