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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 ~ 105°C (TA)
- Mounting Type：Surface Mount
- Package / Case：100-LQFP
- Supplier Device Package：100-TQFP (14x14)
- Current - Supply：-
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The Infineon CYAT81658-100AS48 is an automotive-grade, PSoC-based multitouch all-points touchscreen controller designed for capacitive sensing applications. It integrates a 32-bit Arm Cortex CPU and supports up to 48 sense pins with 560 intersections in a 28x20 configuration. The device operates on a 1.71V to 5.5V supply range and features I2C (up to 400 kbps) and SPI (up to 8 Mbps) interfaces. Packaged in a 100-pin TQFP, it supports screen sizes up to 8.5 inches and reports up to ten simultaneous touch points.
Feature Summary
- AEC Q100 qualified for automotive electronics environments
- Supports thin gloves (≤1 mm) and thick gloves (≤5 mm) with automatic mode switching
- Integrated noise-suppression technologies including AutoArmor and DisplayArmor
- DualSense technology enables water rejection and wet-finger tracking
Applications
- Automotive infotainment systems
- Vehicle instrument clusters
- Center console control panels
Procurement Notes
Verify the specific ordering suffix 'S48' corresponds to the -40 °C to +105 °C temperature grade required for your application. Confirm that the 100-pin TQFP package dimensions align with your PCB layout constraints before finalizing procurement.
Selection Notes
Select this model when high-temperature operation up to 105 °C is necessary. Ensure the design accommodates the 100-pin TQFP footprint. Verify that the system requires support for thick glove interaction and wet-finger tracking capabilities provided by the DualSense feature set.
Part Context
This component belongs to the CYAT8165X series of PSoC Automotive Multitouch controllers. It shares core architecture with variants like the CYAT81658-100AA48 but differs in its extended temperature rating (-40 °C to +105 °C versus -40 °C to +85 °C).
Replacement Considerations
The CYAT81658-100AA48 serves as a lower-temperature alternative within the same package. Cross-referencing firmware compatibility is essential when substituting between different suffixes or pin counts within the CYAT8165X family.
