? semiconductor components industries, llc, 2015 june, 2015 ? rev. 11 1 publication order number: MC74VHCT125A/d MC74VHCT125A quad bus buffer with 3 ? state control inputs the MC74VHCT125A is a high speed cmos quad bus buffer fabricated with silicon gate cmos technology. it achieves high speed operation similar to equivalent bipolar schottky ttl while maintaining cmos low power dissipation. the MC74VHCT125A requires the 3 ? state control input (oe ) to be set high to place the output into the high impedance state. the vhct inputs are compatible with ttl levels. this device can be used as a level converter for interfacing 3.3 v to 5.0 v, because it has full 5.0 v cmos level output swings. the vhct125a input structures provide protection when voltages between 0 v and 5.5 v are applied, regardless of the supply voltage. the output structures also provide protection when v cc = 0 v. these input and output structures help prevent device destruction caused by supply voltage ? input/output voltage mismatch, battery backup, hot insertion, etc. the internal circuit is composed of three stages, including a buffer output which provides high noise immunity and stable output. the inputs tolerate voltages up to 7.0 v, allowing the interface of 5.0 v systems to 3.0 v systems. features ? high speed: t pd = 3.8 ns (typ) at v cc = 5.0 v ? low power dissipation: i cc = 4.0 a (max) at t a = 25 c ? ttl ? compatible inputs: v il = 0.8 v; v ih = 2.0 v ? power down protection provided on inputs ? balanced propagation delays ? designed for 2.0 v to 5.5 v operating range ? low noise: v olp = 0.8 v (max) ? pin and function compatible with other standard logic families ? latchup performance exceeds 300 ma ? esd performance: human body model > 2000 v; machine model > 200 v ? chip complexity: 72 fets or 18 equivalent gates ? nlv prefix for automotive and other applications requiring unique site and control change requirements; aec ? q100 qualified and ppap capable ? these devices are pb ? free and are rohs compliant marking diagrams tssop ? 14 dt suffix case 948g 1 soic ? 14 d suffix case 751a 1 see detailed ordering and shipping information in the package dimensions section on page 2 of this data sheet. ordering information www.onsemi.com a = assembly location l, wl = wafer lot y, yy = year ww, w = work week g or = pb ? free package vhct125ag awlyww 1 14 vhct 125a alyw 1 14 (note: microdot may be in either location)
MC74VHCT125A www.onsemi.com 2 logic diagram active ? low output enables y1 y2 y4 3 6 8 11 13 12 10 9 4 5 1 2 a1 oe1 a2 oe2 a3 oe3 a4 oe4 y3 function table vhct125a inputs output aoe y hl h ll l xh z pin connection (top view) 11 12 13 14 8 9 10 5 4 3 2 1 7 6 oe3 y4 a4 oe4 v cc y3 a3 oe2 y1 a1 oe1 gnd y2 a2 ordering information device package shipping ? MC74VHCT125Adr2g soic ? 14 (pb ? free) 2500 / tape & reel MC74VHCT125Adtrg tssop ? 14 (pb ? free) 2500 / tape & reel nlvvhct125adtrg* tssop ? 14 (pb ? free) 2500 / tape & reel ?for information on tape and reel specifications, including part orientation and tape sizes, please refer to our tape and reel packaging specifications brochure, brd8011/d. *nlv prefix for automotive and other applications requiring unique site and control change requirements; aec ? q100 qualified and ppap capable
MC74VHCT125A www.onsemi.com 3 ??????????????????????? ??????????????????????? ???? ???? ?????????????? ?????????????? ????? ????? ??? ??? ???? ???? v cc ?????????????? ?????????????? ????? ????? ??? ??? ???? ?????????????? ????? ??? ???? ???? ???? ?????????????? ?????????????? ?????????????? ? state high or low state ????? ????? ????? ??? ??? ??? ???? ???? ?????????????? ?????????????? ????? ????? ? 20 ??? ??? ???? ???? ?????????????? ?????????????? ????? ????? 20 ??? ??? ???? ???? ?????????????? ?????????????? ????? ????? 25 ??? ??? ???? ?????????????? ????? 75 ??? ???? ???? ???? ?????????????? ?????????????? ?????????????? ????? ????? ????? ??? ??? ??? ???? ???? ?????????????? ?????????????? ????? ????? ??? ??? c stresses exceeding those listed in the maximum ratings table may damage the device. if any of these limits are exceeded, device functionality should not be assumed, damage may occur and reliability may be affected. ?derating ? soic package: ? 7 mw/ c from 65 to 125 c tssop package: ? 6.1 mw/ c from 65 to 125 c recommended operating conditions ???? ???? ?????????????? ?????????????? ??? ??? ??? ??? ??? ??? ???? ???? v cc ?????????????? ?????????????? ??? ??? ??? ??? ??? ??? ???? ???? ?????????????? ?????????????? ??? ??? ??? ??? ??? ??? ???? ???? ?????????????? ?????????????? ? state high or low state ??? ??? ??? ??? ??? ??? ???? ???? ?????????????? ?????????????? ??? ??? ? 55 ??? ??? ??? ??? c ???? ???? ?????????????? ?????????????? 0.5 v ??? ??? ??? ??? ??? ??? ????????????????????????????????? ????????????????????????????????? dc electrical characteristics ???? ???? ???? ????????? ????????? ????????? ?????? ?????? ?????? ??? ??? ??? ??????? ??????? c ???? ???? 85 c ????? ????? 125 c ?? ?? ?? ??? ??? ??? ??? ??? ??? ??? ??? ?? ?? ??? ??? ??? ??? ???? ???? ???? v ih ????????? ????????? ????????? ? level input voltage ?????? ?????? ?????? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ?? ?? ?? ??? ??? ??? ??? ??? ??? ?? ?? ?? ???? ???? ???? ????????? ????????? ????????? ? level input voltage ?????? ?????? ?????? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ?? ?? ?? ??? ??? ??? ??? ??? ??? ?? ?? ?? ???? ???? ???? ???? ???? ????????? ????????? ????????? ????????? ????????? ? level output voltage v in = v ih or v il ?????? ?????? ? 50 a ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ?? ?? ??? ??? ??? ??? ?? ?? ?? ?? ?? ?????? ?????? ?????? ?????? ? 4.0 ma i oh = ? 8.0 ma ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ?? ?? ?? ?? ??? ??? ??? ??? ??? ??? ??? ??? ???? ???? ???? ???? ????????? ????????? ????????? ????????? ? level output voltage v in = v ih or v il ?????? ?????? a ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ?? ?? ??? ??? ??? ??? ?? ?? ?? ?? ?????? ?????? ?????? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ?? ?? ?? ??? ??? ??? ??? ??? ??? ???? ???? ???? ????????? ????????? ????????? ?????? ?????? ?????? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? 0.1 ??? ??? ??? ?? ?? ?? 0.1 ??? ??? ??? ??? ??? ??? 0.1 ?? ?? ?? a ???? ???? ????????? ????????? ?????? ?????? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ?? ?? ??? ??? ??? ??? ?? ?? a ???? ???? ????????? ????????? ?????? ?????? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ?? ?? ??? ??? ??? ??? ?? ?? ???? ???? ???? ????????? ????????? ????????? ? state leakage current ?????? ?????? ?????? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? 0.25 ??? ??? ??? ?? ?? ?? 2.5 ??? ??? ??? ??? ??? ??? 2.5 ?? ?? ?? a ???? ???? ????????? ????????? ?????? ?????? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ?? ?? ??? ??? ??? ??? ?? ?? a this device contains protection circuitry to guard against damage due to high static voltages or electric fields. however, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this high ? impedance cir- cuit. for proper operation, v in and v out should be constrained to the range gnd (v in or v out ) v cc . unused inputs must always be tied to an appropriate logic voltage level (e.g., either gnd or v cc ). unused outputs must be left open.
MC74VHCT125A www.onsemi.com 4 ????????????????????????????????? ????????????????????????????????? (input t r = t f = 3.0 ns) ???? ???? ???? symbol ???????? ???????? ???????? ????????? ????????? ????????? ?????? ?????? c ????? ????? 85 c ???? ???? 125 c ??? ??? ??? ??? ??? ??? ??? ?? ?? ??? ??? ??? ??? ??? ??? ?? ?? ???? ???? ???? ???? t plh , t phl ???????? ???????? ???????? ???????? ????????? ????????? ????????? 0.3 v c l = 15 pf c l = 50 pf ??? ??? ??? ??? ??? ??? ?? ?? ?? ??? ??? ??? ??? ??? ??? ??? ??? ??? ?? ?? ?? ??? ??? ??? ??? ????????? ????????? 0.5 v c l = 15 pf c l = 50 pf ??? ??? ??? ??? ?? ?? ??? ??? ??? ??? ??? ??? ?? ?? ???? ???? ???? ???? ???? ???????? ???????? ???????? ???????? ???????? ????????? ????????? ????????? 0.3 v c l = 15 pf r l = 1.0 k c l = 50 pf ??? ??? ??? ??? ??? ??? ?? ?? ?? ??? ??? ??? ??? ??? ??? ??? ??? ??? ?? ?? ?? ??? ??? ??? ??? ??? ????????? ????????? ????????? 0.5 v c l = 15 pf r l = 1.0 k c l = 50 pf ??? ??? ??? ??? ??? ??? ?? ?? ?? ??? ??? ??? ??? ??? ??? ??? ??? ??? ?? ?? ?? ???? ???? ???? ???? ???????? ???????? ???????? ???????? ????????? ????????? 0.3 v c l = 50 pf r l = 1.0 k ??? ??? ??? ??? 9.5 ?? ?? ??? ??? ??? ??? ??? ??? ?? ?? ??? ??? ??? ??? ????????? ????????? ????????? 0.5 v c l = 50 pf r l = 1.0 k ??? ??? ??? ??? ??? ??? 6.1 ?? ?? ?? ??? ??? ??? ??? ??? ??? ??? ??? ??? ?? ?? ?? ???? ???? ???? ???? ???????? ???????? ???????? ???????? ? to ? output skew ????????? ????????? ????????? 0.3 v c l = 50 pf (note 1) ??? ??? ??? ??? ??? ??? ?? ?? ?? ??? ??? ??? ??? ??? ??? ??? ??? ??? ?? ?? ?? ??? ??? ??? ??? ????????? ????????? 0.5 v c l = 50 pf (note 1) ??? ??? ??? ??? ?? ?? ??? ??? ??? ??? ??? ??? ?? ?? ???? ???? ???????? ???????? ????????? ????????? ??? ??? ??? ??? ?? ?? ??? ??? ??? ??? ??? ??? ?? ?? ??? ??? ???? ???? ???? ???? ???????? ???????? ???????? ???????? ? state output capacitance (output in high impedance state) ????????? ????????? ????????? ????????? ??? ??? ??? ??? ??? ??? ??? ??? ?? ?? ?? ?? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ??? ?? ?? ?? ?? ??? ??? ??? ??? typical @ 25 c, v cc = 5.0v pf 14 1. parameter guaranteed by design. t oslh = |t plhm ? t plhn |, t oshl = |t phlm ? t phln |. 2. c pd is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption with out load. average operating current can be obtained by the equation: i cc(opr ) = c pd v cc f in + i cc / 4 (per buffer). c pd is used to determine the no ? load dynamic power consumption; p d = c pd v cc 2 f in + i cc v cc . noise characteristics (input t r = t f = 3.0 ns, c l = 50 pf, v cc = 5.0 v) symbol characteristic t a = 25 c unit typ max v olp quiet output maximum dynamic v ol 0.3 0.8 v v olv quiet output minimum dynamic v ol ? 0.3 ? 0.8 v v ihd minimum high level dynamic input voltage 3.5 v v ild maximum low level dynamic input voltage 1.5 v
MC74VHCT125A www.onsemi.com 5 switching waveforms figure 1. figure 2. y 1.5v 1.5v 1.5v 3.0v gnd high impedance v ol + 0.3v v oh - 0.3v y y oe t pzl t plz t pzh t phz *includes all probe and jig capacitance c l * test point device under test output figure 3. test circuit *includes all probe and jig capacitance figure 4. test circuit output test point c l * 1 k connect to v cc when testing t plz and t pzl. connect to gnd when testing t phz and t pzh. device under test high impedance 1.5v 1.5v 3.0v gnd t plh t phl a v oh v ol
MC74VHCT125A www.onsemi.com 6 package dimensions soic ? 14 case 751a ? 03 issue k notes: 1. dimensioning and tolerancing per asme y14.5m, 1994. 2. controlling dimension: millimeters. 3. dimension b does not include dambar protrusion. allowable protrusion shall be 0.13 total in excess of at maximum material condition. 4. dimensions d and e do not include mold protrusions. 5. maximum mold protrusion 0.15 per side. h 14 8 7 1 m 0.25 b m c h x 45 seating plane a1 a m s a m 0.25 b s c b 13x b a e d e detail a l a3 detail a dim min max min max inches millimeters d 8.55 8.75 0.337 0.344 e 3.80 4.00 0.150 0.157 a 1.35 1.75 0.054 0.068 b 0.35 0.49 0.014 0.019 l 0.40 1.25 0.016 0.049 e 1.27 bsc 0.050 bsc a3 0.19 0.25 0.008 0.010 a1 0.10 0.25 0.004 0.010 m 0 7 0 7 h 5.80 6.20 0.228 0.244 h 0.25 0.50 0.010 0.019 6.50 14x 0.58 14x 1.18 1.27 dimensions: millimeters 1 pitch soldering footprint* *for additional information on our pb ? free strategy and soldering details, please download the on semiconductor soldering and mounting techniques reference manual, solderrm/d.
MC74VHCT125A www.onsemi.com 7 package dimensions tssop ? 14 dt suffix case 948g issue b dim min max min max inches millimeters a 4.90 5.10 0.193 0.200 b 4.30 4.50 0.169 0.177 c ??? 1.20 ??? 0.047 d 0.05 0.15 0.002 0.006 f 0.50 0.75 0.020 0.030 g 0.65 bsc 0.026 bsc h 0.50 0.60 0.020 0.024 j 0.09 0.20 0.004 0.008 j1 0.09 0.16 0.004 0.006 k 0.19 0.30 0.007 0.012 k1 0.19 0.25 0.007 0.010 l 6.40 bsc 0.252 bsc m 0 8 0 8 notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: millimeter. 3. dimension a does not include mold flash, protrusions or gate burrs. mold flash or gate burrs shall not exceed 0.15 (0.006) per side. 4. dimension b does not include interlead flash or protrusion. interlead flash or protrusion shall not exceed 0.25 (0.010) per side. 5. dimension k does not include dambar protrusion. allowable dambar protrusion shall be 0.08 (0.003) total in excess of the k dimension at maximum material condition. 6. terminal numbers are shown for reference only. 7. dimension a and b are to be determined at datum plane ? w ? . s u 0.15 (0.006) t 2x l/2 s u m 0.10 (0.004) v s t l ? u ? seating plane 0.10 (0.004) ? t ? ??? ??? ??? section n ? n detail e j j1 k k1 ? w ? 0.25 (0.010) 8 14 7 1 pin 1 ident. h g a d c b s u 0.15 (0.006) t ? v ? 14x ref k n n 7.06 14x 0.36 14x 1.26 0.65 dimensions: millimeters 1 pitch soldering footprint publication ordering information n. american technical support : 800 ? 282 ? 9855 toll free usa/canada europe, middle east and africa technical support: phone: 421 33 790 2910 japan customer focus center phone: 81 ? 3 ? 5817 ? 1050 MC74VHCT125A/d literature fulfillment : literature distribution center for on semiconductor p.o. box 5163, denver, colorado 80217 usa phone : 303 ? 675 ? 2175 or 800 ? 344 ? 3860 toll free usa/canada fax : 303 ? 675 ? 2176 or 800 ? 344 ? 3867 toll free usa/canada email : orderlit@onsemi.com on semiconductor website : www.onsemi.com order literature : http://www.onsemi.com/orderlit for additional information, please contact your local sales representative on semiconductor and the are registered trademarks of semiconductor components industries, llc (scillc) or its subsidia ries in the united states and/or other countries. scillc owns the rights to a number of pa tents, trademarks, copyrights, trade secret s, and other intellectual property. a listin g of scillc?s product/patent coverage may be accessed at www.onsemi.com/site/pdf/patent ? marking.pdf. scillc reserves the right to make changes without further notice to any products herein. scillc makes no warrant y, representation or guarantee regarding the suitability of it s products for any particular purpose, nor does scillc assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. ?typi cal? parameters which may be provided in scillc data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. all operating param eters, including ?typicals? must be validated for each customer application by customer?s technical experts. scillc does not convey any license under its patent rights nor the right s of others. scillc products are not designed, intended, or authorized for use as components in systems intended for surgic al implant into the body, or other applications intended to s upport or sustain life, or for any other application in which the failure of the scillc product could create a situation where personal injury or death may occur. should buyer purchase or use scillc products for any such unintended or unauthorized application, buyer s hall indemnify and hold scillc and its officers , employees, subsidiaries, affiliates, and dist ributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that scillc was negligent regarding the design or manufac ture of the part. scillc is an equal opportunity/affirmative action employer. this literature is subject to all applicable copyright laws and is not for resale in any manner.
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