unisonic technologies co., ltd u74ac14 cmos ic www.unisonic.com.tw 1 of 5 copyright ? 2008 unisonic technologies co., ltd qw-r502-211.a hex schmitt-trigger inverter ? description the u74ac14 contains six independent inverter with schmitt-trigger , provides the function = ya ? features * operation voltage range: 2.0~6.0v * low power dissipation: i cc =20 a(max) *pb-free plating product number: u74ac14l ? ordering information ordering number normal lead free plating package packing u74ac14-s14-r U74AC04AL-S14-R sop-14 tape reel u74ac14-s14-t u74ac04al-s14-t sop-14 tube
u74ac14 cmos ic unisonic technologies co., ltd 2 of 5 www.unisonic.com.tw qw-r502-211.a ? pin configuration 1 2 3 4 5 6 7 14 13 12 11 10 9 8 gnd 3y 3a 2y 2a 1y 1a 4y 4a 5y 5a 6y 6a v cc ? function table (each gate) input(a) output(y) l h h l ? logic diagram (positive logic) iec logic symbol
u74ac14 cmos ic unisonic technologies co., ltd 3 of 5 www.unisonic.com.tw qw-r502-211.a ? absolute maximum rating (unless otherwise specified) parameter symbol ratings unit supply voltage v cc -0.5~7 v input voltage v in -0.5~vcc+0.5 v output voltage v out -0.5~v cc +0.5 v input clamp current i ik 20 ma output clamp current i ok 20 ma output current i out 50 ma v cc or gnd current i cc 200 ma storage temperature t stg -65 ~ +150 note: absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device operation is not implied. ? recommended operating conditions parameter symbol min typ max unit supply voltage v cc 2.0 6.0 v input voltage v in 0 v cc v output voltage v out 0 v cc v v cc =3v -12 v cc =4.5v -24 high-level output current v cc =5.5v i oh -24 v cc =3v 12 v cc =4.5v 24 low-level output current v cc =5.5v i ol 24 ma operating temperature t a -40 25 85 ? static characteristics (t a =25 ) parameter symbol test conditions min typ max unit v cc =3.0v 0.8 1.8 2.2 v v cc =4.5v 1.5 2.6 3.2 v high-level input voltage v ih v cc =5.5v 1.6 3.2 3.9 v v cc =3.0v 0.5 0.8 1 v v cc =4.5v 0.9 1.4 1.8 v low-level input voltage v il v cc =5.5v 1.1 1.8 2.3 v v cc =3.0v 0.3 1 1.2 v v cc =4.5v 0.4 1.2 1.4 v hysteresis v th v cc =5.5v 0.5 1.4 1.6 v v cc =3.0v, i oh =-50 a 2.9 v v cc =4.5v, i oh =-50 a 4.4 v v cc =5.5v, i oh =-50 a 5.4 v v cc =3.0v, i oh =-12ma 2.56 v v cc =4.5v, i oh =-24ma 3.86 v high-level output voltage v oh v cc =5.5v, i oh =-24ma 4.86 v v cc =3.0v, i ol =50 a 0.002 0.1 v v cc =4.5v, i ol =50 a 0.001 0.1 v v cc =5.5v, i ol =50 a 0.001 0.1 v v cc =3.0v, i ol =12ma 0.36 v v cc =4.5v, i ol =24ma 0.36 v low-level output voltage v ol v cc =5.5v, i ol =24ma 0.36 v input leakage current i i(leak) v in =v cc or gnd, v cc =5.5 0.1 a quiescent supply current i q v in =v cc or gnd, i out =0, v cc =5.5 2 a input capacitance c in v in =v cc or gnd 4.5 pf
u74ac14 cmos ic unisonic technologies co., ltd 4 of 5 www.unisonic.com.tw qw-r502-211.a ? dynamic characteristics (t a =25 , input: t r ,t f 2.5ns;prr 1mhz) parameter symbol test conditions min typ max unit v cc =3.3v, c l =50pf 1.5 6 13.5 ns t plh v cc =5.0v, c l =50pf 1.5 5 10 ns v cc =3.3v, c l =50pf 1.5 6 11.5 ns propagation delay from input (a) to output(y) t phl v cc =5.0v, c l =50pf 1.5 5 8.5 ns ? operating characteristics parameter symbol test conditions min typ max unit power dissipation capacitance cpd c l =50 pf, f=1mhz, v cc =5 25 pf
u74ac14 cmos ic unisonic technologies co., ltd 5 of 5 www.unisonic.com.tw qw-r502-211.a ? test circuit and waveforms note: cl includes probe and jig capacitance. fig.1 load circuitry for switching times. output input 1/2 * v cc 1/2 * v cc 1/2 * v cc 1/2 * v cc t phl t plh v cc 0 v v oh v ol fig.2 propagation delay from input(a) to output(y). 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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