QT60485B

www.DataSheet4U.com LQ 32, 48, 64 KEY QMatrix™ KEYPANEL SENSOR ICS LED DRDY X7 CZ1 CSR AIN MS Vdd Vss YG SS QT60325B, QT60485B, QT60645B Advanced second generation QMatrix controllers Up to 32, 48 or 64 touch keys through any dielectric Panel thicknesses to 5 cm or more 100% autocal for life - no adjustments required Keys individually adjustable for sensitivity, response time, and many other critical parameters Mix and match key sizes & shapes in one panel Passive matrix - no components at the keys Moisture suppression capable AKS™ - Adjacent Key Suppression feature Synchronous noise suppression Sleep mode with wake pin SPI Slave or Master/Slave interface to a host controller Low overhead communications protocol 44-pin TQFP package MOSI MISO SCLK RST Vdd Vss XTO XTI X0 X1 X2WS 1 2 3 4 5 6 7 44 43 42 41 40 39 38 37 36 35 34 33 32 CZ2 YS0 YS1 YS2 Aref AGnd AVdd YC7 YC6 YC5 YC4 QT60325B QT60485B QT60645B TQFP-44 31 30 29 28 27 26 25 24 8 9 10 11 23 12 13 14 15 16 17 18 19 20 21 22 XS X6 X5 X4 X3 Vdd YC1 YC0 Vss YC3 YC2 APPLICATIONS Security keypanels Industrial keyboards Appliance controls Outdoor keypads ATM machines Touch-screens Automotive panels Machine tools The QT60325B, QT60485B, and QT60645B digital charge-transfer (“QT”) QMatrix™ ICs are designed to detect human touch on up to 32, 48, or 64 keys respectively using a scanned, passive X-Y matrix. It will project the keys through almost any dielectric, e.g. glass, plastic, stone, ceramic, and even wood, up to...