FOUR_LED_BCD_DISPLAY

Published:2009/7/13 4:06:00 Author:May | From:SeekIC

Square-wave input pulses are counted by 7490 IC that drives LEDs indicating count in binary format up to 10 and then recycling Can be used for classroom demonstrations of counters,flip-flop action, and binary counting，Pulses can be obtained from UJT clock circuit operating at audio rate．－F M Mims, Computer Circuits for Experimenters, Radio Shack, Fort Worth, TX, 1974, p 85－93



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/LED_and_Light_Circuit/FOUR_LED_BCD_DISPLAY.html

Print this Page | Comments | Reading(3)