MC74HC374A Octal 3-State Non-Inverting D Flip-Flop HighPerformance SiliconGate CMOS The MC74HC374A is identical in pinout to the LS374. The device MC74HC374A PIN ASSIGNMENT OUTPUT 1 20 V CC ENABLE LOGIC DIAGRAM Q0 2 19 Q7 2 D0 3 18 D7 3 Q0 D0 5 D1 4 17 D6 4 Q1 D1 7 6 Q1 5 16 Q6 D2 Q2 8 Q2 6 15 Q5 9 DATA D3 Q3 NONINVERTING INPUTS 13 D2 7 14 D5 12 D4 OUTPUTS Q4 14 D3 8 13 D4 D5 15 Q5 17 Q3 9 12 Q4 D6 16 Q6 18 GND 10 11 CLOCK D7 19 Q7 11 CLOCK FUNCTION TABLE PIN 20 = V CC Inputs Output PIN 10 = GND 1 Output OUTPUT ENABLE Enable Clock D Q LHH LLL L L,H, X No Change HX X Z X = dont care Z = high impedance ORDERING INFORMATION Device Package Shipping MC74HC374ANG PDIP20 18 Units / Box (Pb Free) MC74HC374ADWG SOIC20 WIDE 38 Units / Rail (Pb Free) NLV74HC374ADWG* MC74HC374ADWR2G SOIC20 WIDE 1000 Tape & Reel (Pb Free) NLV74HC374ADWR2G* MC74HC374ADTG TSSOP20 75 Units / Rail (Pb Free) TSSOP20 2500 Tape & Reel MC74HC374ADTR2G (Pb Free) NLV74HC374ADTR2G* MC74HC374AFG SOEIAJ20 40 Units / Rail (Pb Free) For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D. *NLV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements AECQ100 Qualified and PPAP Capable.