FM7843 - Touch Screen Controller
Symbol Vcc X+ Y+ XYGND IN3 IN4 Vref Vcc PENIRQ DOUT BUSY DIN CS DCLK Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Power supply 2.7v to 5v X+ Position input.
ADC input Channel 1 Y+ Position input.
ADC input Channel 2 X- Position input Y- Position input Ground Auxiliary input 1.
ADC input Channel 3 Auxi
www.DataSheet4U.com FM7843 Touch Screen Controller Specification Oct.
2007 FM7843 Touch Screen Controller Ver 1.0 Specification 1 www.DataSheet4U.com INFORMATION IN THIS DOCUMENT IS INTENDED AS A REFERENCE TO ASSIST OUR CUSTOMERS IN THE SELECTION OF SHANGHAI FUDAN MICROELECTRONICS CO., LTD PRODUCT BEST SUITED TO THE CUSTOMER'S APPLICATION; THEY DO NOT CONVEY ANY LICENSE UNDER ANY INTELLECTUAL PROPERTY RIGHTS, OR ANY OTHER RIGHTS, BELONGING TO SHANGHAI FUDAN MICROELECTRONICS CO., LTD OR A
FM7843 Features
* Realizing the driver selection of touch screen Analog-to-digital conversion on input voltage or auxiliary voltage Synchronous serial interface Up to 125kHz conversion rate Programmable 8-bit or 12-bit resolution Single supply: 2.7V to 5V 2 auxiliary analog inputs Block Diagram FM7843
