Описание
The TrueTouch family provides the fastest and most efficient way to develop and tune a capacitive touchscreen application. A TrueTouch device includes the configurable TrueTouch block, configurable analog and digital logic, programmable interconnect, and an 8-bit CPU to run custom firmware. This architecture enables the user to create flexible, customized touchscreen configurations to match the requirements of each individual touchscreen application. Various configurations of Flash program memory, SRAM data memory, and configurable IO are included in a range of convenient pinouts. The TrueTouch architecture is comprised of four main areas: the Core, Digital System, the TrueTouch Analog System, and System Resources including a full speed USB port. Configurable global busing allows all the device resources to be combined into a complete custom touchscreen system. The CY8CTST120 device can have up to seven IO ports that connect to the global digital and analog interconnects, providing access to four digital blocks and six analog blocks. Implementation of touchscreen application allows additional digital and analog resources to be used, depending on the touchscreen design. The CY8CTST120 is offered in a 56-pin QFN package with up to 48 general purpose IO (GPIO), and support of up to 37 X/Y sensors. When designing touchscreen applications, refer to the UM data sheet for performance requirements to meet and detailed design process explanation
- TrueTouch™ Capacitive Touchscreen Controller
- Supports Multi-Touch All-Point Touchscreen Applications
- Supports up to 37 X/Y Sensor Inputs
- Supports Screen Sizes 7.3” and Below (Typical)
- Fast Scan Rates: Typical 120 us per X/Y Crossing
- High Resolution: Typical 480 x 360 for 3.5” Screen
- Available in 56-Pin QFN Package
- Multi-Touch All-Point Addressable Detection
- Capable of Tracking up to 10 Independent Fingers
- Allows Development of Customized Multi-Finger Gestures
- Lowest Noise TrueTouch Device
- Highly Configurable Sensing Circuitry
- Allows Maximum Design Flexibility
- Allows Trade-Off Between Scan Time and Noise Performance
- Powerful Harvard Architecture Processor
- M8C Processor Speeds to 24 MHz
- Two 8×8 Multiply, 32-Bit Accumulate
- Low Power at High Speed
- 3V to 5.25V Operating Voltage
- Industrial Temperature Range: -40°C to +85°C
- USB Temperature Range: -10°C to +85°C
