ROHM Semiconductor BU21024FV-M Resistive Touch Screen Controller IC
ROHM BU21024FV-M Resistive Touch Screen Controller IC is a 4-wire touchscreen controller that enables dual-touch detection and gesture recognition. This intelligent controller exposes a set of registers to a host processor and is configured through software. The AEC-Q100 qualified BU21024FV-M IC can detect single point coordinates, dual coordinates, pinch-in, pinch-out, rotate left, and rotate right gestures. This enables pan and zoom operations in applications that previously had to rely exclusively on capacitive touch technology. The resistive touch does not require custom screen development that, which reduces development costs and results in faster time to market across a family of products.
Features
- Enables single touch, dual touch, and gesture recognition using standard 4-wire resistive touchscreens
- Adjustable touch detection threshold allows fine-tuning of pressure sensitivity for an application
- AEC-Q100 qualified
- Enables measurement of single-point touch pressure
- Built-in support for intelligent calibration
- SPI- and I2C interface for interfacing to host processor
- Programmable interrupt polarity
- 10-bit ADC provides sufficient resolution for finger or stylus inputs
- Firmware for internal CPU may be downloaded from the host processor or an EEPROM
- Easy to swap X and Y coordinates or adapt to different touchscreen connections
- Includes filtering options to eliminate false coordinates
- Ideally suited for large-volume automotive, consumer, and industrial applications
- Available in small packages and temperature ranges
Specifications
- 60µA standby current
- SPI and I2C interface
- 2.7 to 3.6V supply voltage range
- -40°C to 85°C temperature range
- SSOP-B28 package
Applications
- Products with an LCD can benefit from pan and zoom operations
- Portable data terminal and coin processing machines
- Meter for medical treatments portable
- Car audio and navigation systems
- Printers, copiers, and barcode scanners
- Touch kiosks and single-board computers
- Digital stethoscopes and digital cameras
- Network-attached storages
- Portable Navigation Devices (PND)
ROHM BU21024FV-M Resistive Touch Screen Controller Functional Block Diagram
Related Products
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Designed to generate data that enables dual touch detection.
ROHM Semiconductor BU2107 Capacitive Switch Controller ICs
Used for operating switches and feature low power consumption using intermittent operation mode.
Published: 2018-04-02
| Updated: 2023-03-06