unisonic technologies co., ltd u74lvc2g07 cmos ic www.unisonic.com.tw 1 of 5 copyright ? 2010 unisonic technologies co., ltd qw-r502-402.a buffers with open-drain outputs ? description the u74lvc2g07 provides two non-inverting buffers with open-drain output and can be connected to other open-drain outputs to implement active-low wired-or or active-high wired-and functions. this device has power-down protective circuit to preventing device from destruction when it is powered down. ? features * wide supply voltage range from 1.65v to 5.5v. * inputs can be driven from ei ther 3.3v or 5v devices. * low power dissipation: ptot =300mw(max) * -24ma output drive(v cc =3.0v) * power down protection * latch-up performance exceeds 250ma. * high noise immunity * direct interface with ttl levels ? ordering information ordering number package packing U74LVC2G07G-AL6-R sot-363 tape reel ? marking
u74lvc2g07 cmos ic unisonic technologies co., ltd 2 of 5 www.unisonic.com.tw qw-r502-402.a ? pin configuration ? function table (each gate) input(na) output(ny) h z l l note: h = high voltage level l = low voltage level z = high-impedance off-state ? logic diagram (positive logic)
u74lvc2g07 cmos ic unisonic technologies co., ltd 3 of 5 www.unisonic.com.tw qw-r502-402.a ? absolute maximum rating (unless otherwise specified) parameter symbol ratings unit supply voltage v cc -0.5~6.5 v input voltage v in -0.5~6.5 v output voltage(active mode) v out -0.5~6.5 v output voltage(power-down mode) v out -0.5~6.5 v input clamp current(v in <0) i ik -50 ma output clamp current(v out <0) i ok -50 ma output current i out 50 ma v cc or gnd current i cc 100 ma operating ambient temperature t opr -40 ~ +125 storage temperature t stg -65 ~ +150 1. 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 oper ation is not implied. 2. the input and output voltage ratings may be exceeded if the input and output current ratings are observed. note: 3. when v cc =0v(power-down mode),the output volt age can be 5.5v in normal operation. ? recommended operating conditions parameter symbol min typ max unit supply voltage v cc 1.65 5.5 v input voltage v in 0 5.5 v active mode 0 vcc output voltage vcc=0v; power-down mode v out 0 5.5 v ? static characteristics (t opr =-40 to +85 ) parameter symbol test conditions min typ max unit v cc =1.65v~1.95v 0.65*v cc v cc =2.3v~2.7v 1.7 v cc =3.0v~3.6v 2.0 high-level input voltage v ih v cc =4.5v~5.5v 0.7* v cc v v cc =1.65v~1.95v 0.35* v cc v cc =2.3v~2.7v 0.7 v cc =3.0v~3.6v 0.8 low-level input voltage v il v cc =4.5v~5.5v 0.3* v cc v v cc =1.65v ~ 5.5v, i ol =100 a 0.1 v cc =1.65v, i ol =4ma 0.45 v cc =2.3v, i ol =8ma 0.3 v cc =2.7v, i ol =12ma 0.4 v cc =3.0v, i ol =24ma 0.55 low-level output voltage v ol v cc =4.5v, i ol =32ma 0.55 v input leakage current i i(leak) v cc =1.65v ~ 5.5v, v in =5.5v or 0 0.1 5 a power off leakage current i off v cc =0v, v in or vo=5.5v 0.1 10 a quiescent supply current i q v cc =5.5v, v in =v cc or gnd, i out =0 0.1 10 a additional quiescent supply current per pin i q v cc =2.3v ~ 5.5v, v in =vcc-0.6v, io=0a 5 500 a output off-state current i oz v cc =5.5v, v in =v ih or v il vo = v cc or gnd 0.1 10 a
u74lvc2g07 cmos ic unisonic technologies co., ltd 4 of 5 www.unisonic.com.tw qw-r502-402.a ? dynamic characteristics parameter symbol test condition min typ max unit t opr =-40 to +85 (note) v cc = 1.65 ~ 1.95 1.0 3.5 6.7 v cc = 2.3 ~ 2.7 0.5 2.4 4.3 v cc = 2.7 1.0 2.3 4.3 v cc = 3.0 ~ 3.6 0.5 2.6 3.7 propagation delay from input (na) to output(ny) t plz /t pzl v cc = 4.5 ~ 5.5 0.5 1.5 2.9 ns note: all typical values are measured at t opr =25 and at vcc=1.8v, 2.5v, 2.7v, 3.3v and 5.0v respectively. ? operating characteristics t a =25 parameter symbol test conditions typ unit power dissipation capacitance per gate c pd v cc =3.3v (notes 1, 2) 6.5 pf input capacitance c i 2.5 pf 1. c pd is used to determine the dynamic power dissipation (pd in w). pd = c pd * vcc2 * fi * n + cl *vcc2* fo where: fi = input frequency in mhz; fo= output frequency in mhz; c l = output load capacitance in pf; v cc = supply voltage in volts; n= total load switching outputs. (c l * vcc2 * fo)= sum of outputs. notes: 2. the condition is v in = gnd to vcc.
u74lvc2g07 cmos ic unisonic technologies co., ltd 5 of 5 www.unisonic.com.tw qw-r502-402.a ? test circuit and waveforms note 1: c l includes probe and jig capacitance. v cc v in t r / t f v m v load c l r l vx 1.8v0.15v v cc 2ns v cc /2 2* v cc 30pf 1k ? v ol + 0.15v 2.5v0.2v v cc 2ns v cc /2 2* v cc 30pf 500 ? v ol + 0.15v 2.7v 2.7v 2.5ns 1.5v 6v 50pf 500 ? v ol + 0.3v 3.3v0.3v 3 v 2.5ns 1.5v 6v 50pf 500 ? v ol + 0.3v 5v0.5v v cc 2.5ns v cc /2 2* v cc 50pf 500 ? v ol + 0.3v note: v = vx - vo l ny output na input t plz t pzl gnd v ol v m vi v m vx vcc v m 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.
|
