74 Serie. GatesCountersDecoders7Segment Display DriversQuad 2input gates 1 7400 quad 2input NAND 2 7403 quad 2input NAND with open collector outputs 3 7408 quad 2input AND 4 7409 quad 2input AND with open collector outputs 5 7432 quad 2input OR 6 7486 quad 2input EXOR 7 74132 quad 2input NAND with Schmitt trigger inputs 1 7402 quad 2input NOR Note the unusual gate layout Triple 3input gates 1 7410 triple 3input NAND 2 7411 triple 3input AND 3 7412 triple 3input NAND with open collector outputs 4 7427 triple 3input NOR Dual 4input gates 1 7420 dual 4input NAND 2 7421 dual 4input AND 7490 decade (09) ripple counter 7493 4bit (015) ripple counter Connecting ripple counters in a chain please see 74393below 74393 dual 4bit (015) ripple counter Counting to less than 15 can be achieved by connecting the appropriate output(s) to the reset inputusing an AND gate if necessary For example to count 0 to 8 connect QA (1) and QD (8) to reset using an AND gate Connecting ripple counters in a chain The diagram below shows how to link ripple counters in a chain notice how the highest output QD of eachcounter drives the clockinput of the next counter 741603 synchronous counters 1 74160 synchronous decade counter (standard reset) 2 74161 synchronous 4bit counter (standard reset) 3 74162 synchronous decade counter (synchronous reset) 4 74163 synchronous 4bit counter (synchronous reset) Counting to less than the maximum (15 or 9) can be achieved by connecting the appropriate output(s)through a NOT or NAND gate to the reset inputFor the 74162 and 74163 (synchronous reset) you must use the output(s) representing one lessthan the reset count you require eg to re 7442 BCD to decimal (1 of 10) decoder Also see 74HC4017 and 4017both are a decade counter and 1of10 decoder in a single IC 7447 BCD to 7segment display driver The 7447 is intended for BCD (binary coded decimal) which is input values 0 to 9 (0000 to 1001 in binary)Inputs from 10 to 15 (1010 to 1111 in binary) will light odd display segments but will do no harm 74HC4511 BCD to 7segment display driver 1 Electronics Club Home Page 2 Site Map 3 Example Projects 4 Construction of Projects 5 Soldering Guide 6 Study Electronics 7 Electronic Components 8 555 Timer 9 Circuit Symbols 10 Frequently Asked Questions 11 Links to other Electronics sites.
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74 Series Logic ICs Electronics Club
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This page covers a selection of the many ICs in the 74 series concentrating on the most useful gates counters decoders and display drivers For each IC there is a diagram showing the pin arrangement and brief notes explain the function of the pins where necessary For simplicity the family letters after the 74 are omitted in the diagrams below because the pin connections apply to all ICs.
74 Series Logic ICs dlb.sa.edu.au
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List of 7400series integrated circuits Wikipedia
74 Series
Some manufacturers released some 4000series equivalent CMOS circuits with a 74 prefix for example the 74HC4066 was a replacement for the 4066 with slightly different electrical characteristics (different powersupply voltage ratings higher frequency capabilities lower “on” resistances in analog switches etc).