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Product Detailed Parameters
- Description：PSOC BASED - TRUETOUCH
- Series：PSOC™Gen6L
- Mfr：Infineon Technologies
- Package：Tray
- Touchscreen：2 Wire Capacitive
- Resolution (Bits)：-
- Interface：I2C, SPI
- Voltage Reference：-
- Voltage - Supply：1.71V ~ 1.95V, 3V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：64-LQFP
- Supplier Device Package：64-TQFP (10x10)
- Current - Supply：-
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The CYAT81659-64AA48 is a capacitive touchscreen controller from Infineon Technologies, part of the TrueTouch family. It integrates an Arm Cortex CPU for advanced signal processing and gesture recognition. The device supports I2C and SPI interfaces and operates on a supply voltage ranging from 1.71 V to 5.5 V. It draws approximately 20 mA during operation and functions within a temperature range of -40°C to +85°C. The component is housed in a TQFP-64 package suitable for surface-mount installation.
Feature Summary
- Integrated Arm Cortex CPU for programmable touch processing
- Supports both I2C and SPI communication protocols
- Wide operating voltage range from 1.71 V to 5.5 V
- Capacitive sensing technology with multi-touch capability
Applications
- Smartphones and mobile devices
- Tablets and portable media players
- Industrial control panels requiring touch input
- Automotive infotainment systems
Procurement Notes
Verify the specific suffix AA48 against official Infineon documentation to confirm pinout and electrical characteristics. Confirm moisture sensitivity levels and reflow soldering profiles prior to assembly. Ensure compatibility with existing firmware libraries provided by the manufacturer for the TrueTouch series.
Selection Notes
Select this model when a dedicated MCU is required for complex gesture handling or custom touch algorithms. Compare against CYAT81658 variants if slider-only functionality is sufficient. Verify that the TQFP-64 footprint aligns with the PCB design constraints and thermal management requirements.
Part Context
This component belongs to the CYAT8165x series of TrueTouch controllers. It differs from other series members primarily by its package type and specific pin configuration. The integration of a CPU distinguishes it from simpler passive touch controllers, allowing for greater flexibility in user interface design.
Replacement Considerations
Direct replacements within the same series include CYAT81659-64AS48. Verify pin-to-pin compatibility and software register mapping before substitution. Cross-reference with CYAT81658 models only if the application does not require the specific features of the 64-pin variant.
