AccuTouch COACh V Controller Chip

The COACh V (Controller On A Chip, 5th generation) (Part # E196429, RoHS Compliant) is a compact universal resistive touchscreen controller chip solution. It supports both serial and USB communication interfaces and is capable of interfacing to either AccuTouch five-wire resistive touchscreens. Regardless of the configuration, operation is automatically detected on power up and needs no user intervention. The COACh V fully supports the Elo SmartSet protocol and all program drivers, both serial and USB.

Features

• Single chip ASIC design for compact integration
• Supports both USB and RS232 interfaces with autodetection
• Serial Interface:
  • bidirectional communication as a DCE
  • 2,400, 4,800, 9,600 and 19,200 baud rates supported
  • Frame configuration 8 data, 1 stop, No Parity, Full Duplex
  • Hardware handshaking supported: DSR, DTR, RTS, CTS
• USB Interface:
  • Full speed USB device
  • Self-powered
• Supports five-wire touchscreens with autodetection
• Resolution: 4096x4096, size independent
• Conversion time approximately 10 ms per coordinate set
• Improved measurement algorithm eliminates the need for touch filter adjustments
• Full AccuTouch SmartSet protocol
• Multiple output formats: Binary or ASCII
• E261-280, E271-140, E281A-4002 compatibility modes
• On-board calibration, coordinate scaling, and programmable output rates allow for application-specific performance tuning
• Configuration parameters including serial number are stored on the internal chip Flash memory
• Power requirements: 5 VDC, nominal (5.5 max); 37 mA (typical), and 60 mA (max); 3.3V is required with the maximum of 3.6Volts
• Average power consumption: 123 mWatt @ 5 volts
• 48-pin LQFP package (7 mm x 7 mm x 1.6 mm)
• Temperature:
  • Operating: -40°C to +85°C
  • Storage: -65°C to +125°C
• ESD rating (human body model): 2.0 kV
• Look up product statement of compliance by part number