EM32100

EM32100 EM32100 DIGIT LCD DRIVER 8/10 8/10 DIGIT LCD DRIVER GENERAL DESCRIPTION The EM32100 is a CMOS LCD display driver which can receive dialing data from dialer IC and display on the LCD panel. The EM32100 can also display real time clock, conversation time (stopwatch). FEATURES Drive 8/10 digits LCD panel. Display dialing number. Display real time clock (RTC) in 12 hour or 24 hour format selectable. Stopwatch function for counting conversation time up to 59 minutes 59 seconds. Operating voltage: 1.5 VDC ( typical ) Operating current : 3 µA (max.) LCD driver method : 1/3 duty , 1/2 bias. Internal voltage doubler circuit for drive LCD. Internal dialer interface. Use single colck 32768Hz crystal. Package in QFP 48 pins or chip form . APPLICATION FIELD Telephone and Digital display system. PIN ASSIGNMENTS 12 11 10 9 8 7 6 5 4 3 2 1 NC ENRTC 24/12 VSS XOUT NC XIN VDD HKS SDI MS2 MS1 NC VP VN VEE SEG24 SEG23 SEG22 SEG21 SEG20 SEG19 SEG18 SEG17 13 14 15 16 17 18 19 20 21 22 23 24 EM32100 48 47 46 45 44 43 42 41 40 39 38 37 NC F32H TESTI TEST2 COM3 COM2 COM1 SEG1 SEG2 SEG3 SEG4 SEG5 * This specification are subject to be changed without notice. SEG16 SEG15 SEG14 SEG13 SEG12 SEG11 SEG10 NC SEG9 SEG8 SEG7 SEG6 25 26 27 28 29 30 31 32 33 34 35 36 2.10.1999 1 EM32100 8/10 DIGIT LCD DRIVER FUNCTION BLOCK DIAGRAM COM1~3 SEG1~24 1/3 Duty 1/2 Bias LCD Driver Serial Data Samplin & Decoding Sampling Signal Generator XIN XOUT VDD VSS VP Power Supply ...