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Product Detailed Parameters
- Description：PSOC BASED - TRUETOUCH
- Series：PSOC™7XL
- Mfr：Infineon Technologies
- Package：Tray
- Touchscreen：2 Wire Capacitive
- Resolution (Bits)：-
- Interface：I2C
- Voltage Reference：-
- Voltage - Supply：1.71V ~ 1.95V, 3V ~ 5.5V
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：128-LQFP
- Supplier Device Package：128-TQFP (14x20)
- Current - Supply：-
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The CYAT847AZA77-42002 is a Generation 7XL multi-chip capacitive touchscreen controller from Infineon Technologies, designed for automotive applications. It features a 32-bit Arm® Cortex® CPU and supports screen sizes up to 35 inches diagonal with a refresh rate of up to 120 Hz. The device operates on a 3.0 V to 5.5 V analog supply and includes integrated DSP for data processing. It provides 77 sense I/Os in a 128-pin TQFP package, supporting AEC-Q100 qualification and operating temperatures from -40°C to 85°C.
Feature Summary
- Multi-chip architecture with 32-bit Arm® Cortex® CPU and register configurability
- Supports screens up to 35-inch diagonal with 6-mm electrode pitch and 120 Hz refresh rate
- Integrated AutoArmor technology for electromagnetic emission and immunity improvement
- DualSense water rejection and wet-finger tracking capabilities
Applications
- Automotive infotainment systems requiring large touchscreens
- Vehicle cockpit displays with high noise environments
- Smart mobility interfaces utilizing OLED or LCD technologies
Procurement Notes
Verify the specific ordering code against the official Infineon datasheet to ensure correct pin count and temperature range configuration. Confirm that the selected package matches the design requirements, as this component is available in both 100-pin and 128-pin TQFP variants within the same product family.
Selection Notes
Select this model for designs requiring support for screens larger than 19 inches, as it accommodates up to 35-inch diagonals. Ensure the system design accounts for the multi-chip implementation if scaling beyond single-chip limits. Verify that the host interface supports the required I2C slave rates for communication.
Part Context
This component belongs to the PSoC™ Automotive Multitouch Generation 7XL series, specifically the multi-chip variant. It is engineered to meet strict automotive standards while enabling advanced user interaction modes. The '4' in the part number indicates its role as a slave device within a multi-chip configuration.
Replacement Considerations
Direct replacements within the same generation include other CYAT847X variants with different sense pin counts (e.g., CYAT847AZA88-42002). Cross-generation upgrades may involve the Gen8XL series for larger displays.
