unisonic technologies co., ltd u74hct574 cmos ic www.unisonic.com.tw 1 of 5 copyright ? 2011 unisonic technologies co., ltd qw-r502-653.a octal d-type edge-trigger flip-flop with 3-state output ? description the utc 74hct574 is octal d-type flip-flo p featuring separate d-type inputs for each flip-flop and non-invert ing 3-state outputs for bus-oriented applications. ? features * operation voltage range:4.5v~5.5v * 3-state non-inverting outputs for bus-oriented applications * common 3-state output enable input * inputs are ttl voltage compatible ? ordering information ordering number lead free halogen free package packing U74HCT574L-R20-T u74hct574g-r20-t tssop-20 tape reel U74HCT574L-R20-T u74hct574g-r20-t tssop-20 tube
u74hct574 cmos ic unisonic technologies co., ltd 2 of 5 www.unisonic.com.tw qw-r502-653.a ? pin configuration 9 8 7 6 5 4 3 2 1 18 17 16 14 15 13 12 11 10 19 20 oe 1d 2d 3d 4d 5d 6d 7d 8d gnd cp v cc 1q 3q 5q 6q 7q 8q 4q 2q ? function table inputs( oe ) inputs(cp) inputs(d) output(q) l h h l l l l l or h x q0 h x x z ? logic diagram
u74hct574 cmos ic unisonic technologies co., ltd 3 of 5 www.unisonic.com.tw qw-r502-653.a ? absolute maximum rating ( unless otherwise specified ) parameter symbol ratings unit supply voltage v cc -0.5~7.0 v input voltage v in -0.5~vcc+0.5 v output voltage(active mode) v out -0.5~v cc +0.5 v input clamp current (v in < 0) i ik 20 ma output clamp current (v out < 0) i ok 20 ma output current i out 35 ma v cc or gnd current i cc 50 ma storage temperature t stg -65 ~ +150 c notes: 1. absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. 2. the input and output voltage ratings may be ex ceeded if the input and output current ratings are observed. ? recommended operating comditions parameter symbol ratings unit supply voltage v cc 4.5 ~ 5.5 v input voltage v in 0 ~ v cc v output voltage v out 0 ~ v cc v operating temperature t opr -40 ~ 85 c input transition rise or fall rate t t 0 ~ 500 ns ? electrical characteristics ( t a =25 , unless otherwise specified ) parameter symbol test conditions min typ max unit high-level input voltage v ih v cc =4.5v~5.5v 2.0 1.6 v low-lever output voltage v il v cc =4.5v~5.5v 1.2 0.8 v v cc =4.5v, i oh =-20 a 4.4 4.499 v high-level output voltage v oh v cc =4.5v, i oh =-6ma 3.98 4.3 v v cc =4.5v, i ol =20 a 0.001 0.1 v low-level output voltage v ol v cc =4.5v, i oh =6ma 0.17 0.26 v input leakage current i i(leak) v cc =5.5v, v in =v cc or gnd 0.1 100 na output off -state current i oz v cc =5.5v, v out =v cc or gnd 0.01 0.5 a quiescent supply current i cc v cc =5.5v, v in =v cc or gnd, i out =0 8 a additional quiescent supply current i cc v cc =5.5v,one input at 0.5v or 2.4v,other inputs at 0 or v cc 100 360 a input capacitance c in v cc =5.5v, v in =v cc or gnd 3 10 pf
u74hct574 cmos ic unisonic technologies co., ltd 4 of 5 www.unisonic.com.tw qw-r502-653.a ? timing requirements ( t a =25 , c l =50pf,unless otherwise specified ) parameter symbol test conditions min typ max unit pulse duration, le high t w v cc =4.5v 16 7 ns setup time, data before le t su v cc =4.5v 12 3 ns hold time, data after le t h v cc =4.5v 5 -1 ns ? dynamic characteristics ( t a =25 , c l =50pf,r l =1k ? ,unless otherwise specified ) parameter symbol test conditions min typ max unit propagation delay from input (cp) to output ( q ) t pd (t plh /t phl ) v cc =4.5v 18 33 ns 3-state output enable time from input ( oe ) to output ( q ) t en (t pzl /t pzh ) v cc =4.5v 19 33 ns 3-state output disable time from input ( oe ) to output ( q ) t dis (t plz /t phz ) v cc =4.5v 16 28 ns output transition time, ( q ) t t (t r /t f ) v cc =4.5v 5 12 ns ? operating characteristics parameter symbol test conditions ratings unit power dissipation capacitance c pd no load 50 pf
u74hct574 cmos ic unisonic technologies co., ltd 5 of 5 www.unisonic.com.tw qw-r502-653.a ? test circuit and waveforms note c l includes probe and jig capacitance. p rr 1mhz, z o = 50 ? , t r 6ns, t f 6ns utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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