unisonic technologies co., ltd U74LVC14A cmos ic www.unisonic.com.tw 1 of 5 copyright ? 2011 unisonic technologies co., ltd qw-r502-436.b hex schmitt-trigger inverters ? description the U74LVC14A devices contain six independent inverters with schmitt-trigger action which perform the boolean function y= a in positive logic . this device has power-down protective circuit preventing destruction of the device when it is powered down. ? features * operate from 1.65v to 3.6v * inputs accept voltages to 5.5v * i off supports partial-power-down mode * low power dissipation * max t pd of 6.4 ns at 3.3v ? ordering information ordering number lead free halogen free package packing U74LVC14Al-p14-r U74LVC14Ag-p14-r tssop-14 tape reel U74LVC14Al-s14-r U74LVC14Ag-s14-r sop-14 tape reel
U74LVC14A cmos ic unisonic technologies co., ltd 2 of 5 www.unisonic.com.tw qw-r502-436.b ? pin configuration ? function table (each inverter) input ( a ) output ( y ) h l l h note: h: high voltage level; l: low voltage level. ? logic diagram (each inverter) logic symbol
U74LVC14A cmos ic unisonic technologies co., ltd 3 of 5 www.unisonic.com.tw qw-r502-436.b ? absolute maximum rating parameter symbol ratings unit supply voltage v cc -0.5 ~ +6.5 v input voltage v in -0.5 ~ +6.5 v output voltage v out -0.5 ~ v cc +0.5 v v cc or gnd current i cc 100 ma continuous output current ( v out =0 to v cc) i out 50 ma input clamp current (v in <0) i ik -50 ma output clamp current (v out < 0) i ok -50 ma tssop-14 500 mw power dissipation ( t a =-40 c to +125 c ) sop-14 p d 600 mw storage temperature range t stg -65 ~ +150 c note: absolute maximum ratings are those values beyo nd which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device operation is not implied. ? thermal data parameter symbol ratings unit tssop-14 113 c /w junction to ambient sop-14 ja 76 c /w ? recommended operating conditions parameter symbol test conditions min typ max unit supply voltage v cc operating 1.65 3.6 v input voltage v in 0 5.5 v output voltage v out 0 v cc v ambient operating temperature t opr -40 125 c v cc =1.65v -4 ma v cc =2.3v -8 ma v cc =2.7v -12 ma high-level output current i oh v cc =3v -24 ma v cc =1.65v 4 ma v cc =2.3v 8 ma v cc =2.7v 12 ma low-level output current i ol v cc =3v 24 ma ? electrical characteristics ( t a =25 c , unless otherwise specified) parameter symbol test conditions min typ max unit v cc =1.65v 0.4 1.3 v v cc =1.95v 0.6 1.5 v v cc =2.3v 0.8 1.7 v v cc =2.5v 0.8 1.7 v v cc =2.7v 0.8 2 v v cc =3v 0.9 2 v positive-going threshold v t+ v cc =3.6v 1.1 2 v v cc =1.65v 0.15 0.85 v v cc =1.95v 0.25 0.95 v v cc =2.3v 0.4 1.2 v v cc =2.5v 0.4 1.2 v v cc =2.7v 0.4 1.4 v v cc =3v 0.6 1.5 v negative-going threshold v t- v cc =3.6v 0.8 1.7 v
U74LVC14A cmos ic unisonic technologies co., ltd 4 of 5 www.unisonic.com.tw qw-r502-436.b ? electrical characteristics (cont.) parameter symbol test conditions min typ max unit v cc =1.65v 0.1 1.15 v v cc =1.95v 0.15 1.25 v v cc =2.3v 0.25 1.3 v v cc =2.5v 0.25 1.3 v v cc =2.7v 0.3 1.1 v v cc =3v 0.3 1.2 v hysteresis(v t+ - v t- ) v t v cc =3.6v 0.3 1.2 v i oh =-100 a v cc =1.65 ~ 3.6v v cc -0.2 v i oh =-4ma v cc =1.65v 1.29 v i oh =-8ma v cc =2.3v 1.9 v i oh =-12ma v cc =2.7v 2.2 v i oh =-12ma v cc =3.0v 2.4 v high-level output voltage v oh i oh =-24ma v cc =3v 2.3 v i ol =100 a v cc =1.65 ~ 3.6v 0.1 v i ol =4ma v cc =1.65v 0.24 v i ol =8ma v cc =2.3v 0.3 v i ol =12ma v cc =2.7v 0.4 v low-level output voltage v ol i ol =24ma v cc =3.0v 0.55 v input leakage current i i(leak) v in =5.5v or gnd, v cc =3.6v 1 a quiescent supply current i q v in = v cc or gnd, i out =0, v cc =3.6v 1 a additional quiescent supply current per input pin i q v cc =2.7 ~ 3.6v, i out =0 one input at v cc -0.6v, other inputs at v cc or gnd 500 a input capacitance c in v in = v cc or gnd 5 pf ? switching characteristics (t a =25 ) parameter symbol test conditions min typ max unit v cc =1.80.15v r l =1k ? 1.0 5 10.5 ns v cc =2.50.2v r l =500 ? c l =30pf 1.0 3.4 7.3 ns v cc =2.7v r l =500 ? 1.0 3.6 7.3 ns propagation delay from input (na) to output(ny) t plh / t phl v cc =3.30.3v r l =500 ? c l =50pf 1.0 3.2 6.2 ns ? operating characteristics (t a =25 ) parameter symbol test conditions min typ max unit v cc =1.8v 11 pf v cc =2.5v 12 pf power dissipation capacitance per inverter c pd f=10mh z v cc =3.3v 15 pf
U74LVC14A cmos ic unisonic technologies co., ltd 5 of 5 www.unisonic.com.tw qw-r502-436.b ? test circuit and waveforms note: c l includes probe and jig capacitance. all input pulses are supplied by generators having the following characteristics: prr 10mhz, zo = 50 ? . 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. inputs v cc v in t r , t f v m c l r l 1.8v0.15v v cc 2ns v cc /2 30pf 1k ? 2.5v0.2v v cc 2ns v cc /2 30pf 500 ? 2.7v 2.7v 2.5ns 1.5v 50pf 500 ? 3.3v0.3v 2.7v 2.5ns 1.5v 50pf 500 ?
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