unisonic technologies co., ltd u74hc2g125 cmos ic www.unisonic.com.tw 1 of 6 copyright ? 2014 unisonic technologies co., ltd qw-r502-a58.a dual buffer/line driver; 3-state ? description the u74hc2g125 is a high speed, si-gate cmos device. the u74hc2g125 provides two non-inverting buffer/line drivers with 3-state output. the 3- state output is controlled by the output enable input (pin noe ). a high level at pin noe causes the output to assume a high-impedance off-state. tssop-8 ? features * wide supply voltage range from 2.0v to 6.0v * symmetrical output impedance * high noise immunity * low power consumption * balanced propagation delays * multiple package options * specified from -40 c to +125 c ? ordering information ordering number package packing lead free halogen free u74hc2g125l-p08-t u74hc2g125g-p08-t tssop-8 tube U74HC2G125L-P08-R u74hc2g125g-p08-r tssop-8 tape reel
u74hc2g125 cmos ic unisonic technologies co., ltd 2 of 6 www.unisonic.com.tw qw-r502-a58.a ? pin configuration ? pin configuration pin no symbol description 1, 7 1o e , 2oe output enable input (active low) 2. 5 1a, 2a data input 4 gnd ground (0v) 6, 3 1y, 2y data output 8 v cc supply voltage ? functional diagram ? function table control input output noe na ny l l l l h h h x z h=high voltage level; l=low voltage level; x=don?t care; z=high-impedance off-state
u74hc2g125 cmos ic unisonic technologies co., ltd 3 of 6 www.unisonic.com.tw qw-r502-a58.a ? absolute maximum rating parameter symbol conditions min typ max unit supply voltage v cc -0.5 +7.0 v input voltage v i -0.5 +7.0 v input clamping current i ik v i <-0.5v or v i >v cc +0.5v 20 ma output clamping current i ok v o <-0.5v or v o >v cc +0.5v 20 ma output current i o v o =-0.5v ~ (v cc +0.5v) 35 ma supply current i cc 70 ma ground current i gnd -70 ma power dissipation p d 300 mw storage temperature t stg -65 +150 c note: the input and output voltage ratings may be exceeded if the input and output current ratings are observed. ? recommended operating conditions parameter symbol test conditions min typ max unit supply voltage v cc 2 5 6 v input voltage v i 0 v cc v output voltage v o 0 v cc v input transition rise and fall rate ? t/ ? v v cc =2v 625 ns/v v cc =4.5v 1.67 139 v cc =6v 83 ambient temperature t a -40 +25 +125 c note: voltages are referenced to gnd (ground=0v). ? electrical characteristics (t a =25c , unless otherwise specified) parameter symbol test conditions min typ max unit high-level input voltage v ih v cc =2v 1.5 1.2 v v cc =4.5v 3.15 2.4 v v cc =6v 4.2 3.2 v low-level input voltage v il v cc =2v 0.8 0.5 v v cc =4.5v 2.1 1.35 v v cc =6v 2.8 1.8 v output voltage high-level v oh v cc =2v, i oh =-20 a 1.9 2.0 v v cc =4.5v, i oh =-20 a 4.4 4.5 v v cc =6v, i oh =-20 a 5.9 6.0 v v cc =4.5v, i oh =-6ma 3.84 4.32 v v cc =6v, i oh =-7.8ma 5.34 5.81 v output voltage low-level v ol v cc =2v, i ol =20 a 0 0.1 v v cc =4.5v, i ol =20 a 0 0.1 v v cc =6v, i ol =20 a 0 0.1 v v cc =4.5v, i ol =6ma 0.15 0.33 v v cc =6v, i ol =7.8ma 0.16 0.33 v input leakage current i i v cc =6v, v i = v cc or gnd 1 a off-state output current i oz v cc =6v, v i = v ih or v il , v o = v cc or gnd 0.25 a quiescent supply current i cc v cc =6v, v i =v cc or gnd, i out =0 1 a
u74hc2g125 cmos ic unisonic technologies co., ltd 4 of 6 www.unisonic.com.tw qw-r502-a58.a ? switching characteristics (t r = t f 6ns, c l =50pf, t a =25c, unless otherwise specified) parameter symbol test conditions min typ max unit propagation delay from input (na) to output(ny) t plh / t phl v cc =2v 35 115 ns v cc =4.5v 11 23 ns v cc =5v, c l =15pf 10 ns v cc =6v 8 20 ns enable time from noe to ny t pzl / t pzh v cc =2v 40 115 ns v cc =4.5v 11 23 ns v cc =6v 8 20 ns disable time from noe to ny t plz / t phz v cc =2v 24 125 ns v cc =4.5v 12 25 ns v cc =6v 10 21 ns transition time t thl / t tlh v cc =2v 18 75 ns v cc =4.5v 6 15 ns v cc =6v 5 13 ns ? capacitive characteristics (t a =25c , unless otherwise specified) parameter symbol test conditions min typ max unit input capacitance c i 1.0 pf output capacitance c o 1.5 pf power dissipation capacitance c pd per buffer; v i =gnd to v cc output enabled 11 pf output disabled 1 pf
u74hc2g125 cmos ic unisonic technologies co., ltd 5 of 6 www.unisonic.com.tw qw-r502-a58.a ? test circuit and waveforms s1 position t phl , t plh t pzh , t phz t pzl , t plz open gnd v cc
u74hc2g125 cmos ic unisonic technologies co., ltd 6 of 6 www.unisonic.com.tw qw-r502-a58.a ? test circuit and waveforms (cont.) 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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