? semiconductor components industries, llc, 2016 october, 2016 ? rev. 11 1 publication order number: mc74vhct126a/d mc74vhct126a quad bus buffer with 3?state control inputs the mc74vhct126a is a high speed cmos quad bus buffer fabricated with silicon gate cmos technology. it achieves noninverting high speed operation similar to equivalent bipolar schottky ttl while maintaining cmos low power dissipation. the mc74vhct126a requires the 3?state control input (oe) to be set low to place the output into high impedance. 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 vhct126a 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: hbm > 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, halogen free/bfr free and are rohs compliant www. onsemi.com see detailed ordering and shipping information in the packag e dimensions section on page 4 of this data sheet. ordering information a h l x function table inputs outputs oe h h l y h l z vhct126a marking diagrams soic?14 d suffix case 751a 1 a = assembly location wl, l = wafer lot y = year ww, w = work week g or = pb?free package vhct126ag awlyww 1 14 see applications note #and8004/d for date code and traceability information. tssop?14 dt suffix case 948g 1 vhct 126a alyw 1 14 (note: microdot may be in either location)
mc74vhct126a www. onsemi.com 2 figure 1. logic diagram active?high 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 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 figure 2. pin assignment ??????????????????????? ??????????????????????? ?????????????? ?????????????? ??? ??? ?????? ?????? ??? ??? ?????????????? ?????????????? dc supply voltage ??? ??? ?????? ?????? ??? ??? ?????????????? ?????????????? ??? ??? ?????? ?????? ??? ??? ?????????????? ?????????????? ??? ??? ?????? ?????? ??? ??? ?????????????? ?????????????? ??? ??? ?????? ?????? ??? ??? ?????????????? ?????????????? ??? ??? ?????? ?????? 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 packages: ? 7 mw/ c from 65 to 125 c tssop package: ? 6.1 mw/ c from 65 to 125 c recommended operating conditions ?????????????? ?????????????? ??? ??? ???? ???? ??? ??? ??? ??? ?????????????? ?????????????? dc supply voltage ??? ??? ???? ???? ??? ??? ??? ??? ?????????????? ?????????????? ??? ??? ???? ???? ??? ??? ??? ??? ?????????????? ?????????????? ?????????????? ??? ??? ??? ???? ???? ???? ??? ??? ??? ??? ??? ??? ?????????????? ?????????????? ??? ??? ???? ???? ??? ??? ??? ??? c ?????????????? 0.5 v ??? ???? ??? ??? (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.
mc74vhct126a www. onsemi.com 3 ????????????????????????????????? ????????????????????????????????? ?????????? ?????????? ?????????? ?????? ?????? ?????? ??? ??? ??? ???? ???? ???? ?????? ?????? c ???? ???? 85 c ????? ????? 125 c ?? ?? ?? ?? ?? ?? ?? ??? ??? ??? ??? ?? ?? ??? ??? ??? ??? ?????????? ?????????? ?????????? minimum high?level input voltage ?????? ?????? ?????? ??? ??? ??? ???? ???? ???? ?? ?? ?? ?? ?? ?? ??? ??? ??? ??? ??? ??? ?? ?? ?? ??? ??? ??? ??? ??? ??? ?? ?? ?? ?????????? ?????????? ?????????? ?????? ?????? ?????? ??? ??? ??? ???? ???? ???? ?? ?? ?? ?? ?? ?? ??? ??? ??? ??? ??? ??? ?? ?? ?? ??? ??? ??? ??? ??? ??? ?? ?? ?? ?????????? ?????????? ?????????? ?????????? ?????????? ?????? ?????? ?????? a ??? ??? ??? ??? ??? ???? ???? ???? ?? ?? ?? ?? ?? ?? ??? ??? ??? ??? ??? ??? ?? ?? ?? ??? ??? ??? ??? ??? ??? ?? ?? ?? ?? ?? ?????? ?????? ?????? ???? ???? ???? ?? ?? ?? ?? ?? ?? ??? ??? ??? ??? ??? ??? ?? ?? ?? ??? ??? ??? ??? ??? ??? ?????????? ?????????? ?????????? ?????????? ?????????? ?????? ?????? a ??? ??? ??? ??? ??? ???? ???? ?? ?? ?? ?? ??? ??? ??? ??? ?? ?? ??? ??? ??? ??? ?? ?? ?? ?? ?? ?????? ?????? ?????? ?????? ???? ???? ???? ???? ?? ?? ?? ?? ?? ?? ?? ?? ??? ??? ??? ??? ??? ??? ??? ??? ?? ?? ?? ?? ??? ??? ??? ??? ??? ??? ??? ??? ?????????? ?????????? ?????? ?????? ??? ??? ???? ???? ?? ?? ?? ?? ??? ??? 0.1 ??? ??? ?? ?? 1.0 ??? ??? ??? ??? 1.0 ?? ?? a ?????????? ?????????? ?????? ?????? ??? ??? ???? ???? ?? ?? ?? ?? ??? ??? ??? ??? ?? ?? ??? ??? ??? ??? ?? ?? a ?????????? ?????????? ?????? ?????? ??? ??? ???? ???? ?? ?? ?? ?? ??? ??? ??? ??? ?? ?? ??? ??? ??? ??? ?? ?? ?????????? ?????????? ?????? ?????? ??? ??? ???? ???? ?? ?? ?? ?? ??? ??? 0.2 5 ??? ??? ?? ?? 2.5 ??? ??? ??? ??? 2.5 ?? ?? a ?????????? ?????????? ?????? ?????? ??? ??? ???? ???? ?? ?? ?? ?? ??? ??? ??? ??? ?? ?? ??? ??? ??? ??? ?? ?? a ????????????????????????????????? ????????????????????????????????? ac electrical characteristics (input t r = t f = 3.0 ns) ?????????? ?????????? ?????????? parameter ???????? ???????? ???????? ???? ???? ???? ?????? ?????? c ???? ???? 85 c ????? ????? 125 c ?? ?? ?? ?? ?? ?? ?? ??? ??? ??? ??? ?? ?? ??? ??? ??? ??? ?????????? ?????????? ?????????? ?????????? maximum propagation delay, a to y ???????? ???????? 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 ???? ???? ???? ???? t plz , t phz ?? ?? ?? ?? ?? ?? ??? ??? ??? ??? ??? ??? ?? ?? ?? ??? ??? ??? ??? ??? ??? ?? ?? ?? ?? ???????? ???????? 0.5 v c l = 50 pf r l = 1.0 k ?? ?? ?? ?? 6.1 ??? ??? ??? ??? ?? ?? ??? ??? ??? ??? ?????????? ?????????? ?????????? ?????????? ???????? ???????? ???????? 0.3 v c l = 50 pf (note 1) ???? ???? ???? ???? ?? ?? ?? ?? ?? ?? ??? ??? ??? ??? ??? ??? ?? ?? ?? ??? ??? ??? ??? ??? ??? ?? ?? ?? ?? ???????? ???????? 0.5 v c l = 50 pf (note 1) ?? ?? ?? ?? ??? ??? ??? ??? ?? ?? ??? ??? ??? ??? ?????????? ?????????? ???????? ???????? ???? ???? ?? ?? ?? ?? ??? ??? ??? ??? ?? ?? ??? ??? ??? ??? ?? ?? ?????????? ?????????? ?????????? ???????? ???????? ???????? ???? ???? ???? ?? ?? ?? ?? ?? ?? ??? ??? ??? ??? ??? ??? ?? ?? ?? ??? ??? ??? ??? ??? ??? ?? ?? ?? ????????????????? ????????????????? ????????????????? ???? ???? ???? ????????????? ????????????? typical @ 25 c, v cc = 5.0v ?? ?? ?? pf ????????????? ????????????? 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 .
mc74vhct126a www. onsemi.com 4 noise characteristics (input t r = t f = 3.0ns, c l = 50pf, v cc = 5.0v) characteristic symbol t a = 25 c unit typ max quiet output maximum dynamic v ol v olp 0.3 0.8 v quiet output minimum dynamic v ol v olv ? 0.3 ? 0.8 v minimum high level dynamic input voltage v ihd 3.5 v maximum low level dynamic input voltage v ild 1.5 v switching waveforms 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 *includes all probe and jig capacitance 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 figure 3. figure 4. figure 5. test circuit figure 6. test circuit ordering information device package shipping ? mc74vhct126adr2g soic?14 (pb?free) 2500 / tape & reel m74vhct126adtr2g tssop?14 (pb?free) 2500 / tape & reel nlvvhct126adtr2g* 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.
mc74vhct126a www. onsemi.com 5 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.
mc74vhct126a www. onsemi.com 6 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? ??? ??? ??? 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 on semiconductor and are trademarks of semiconductor components industries, llc dba on semiconductor or its subsidiaries i n the united states and/or other countries. on semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property . a listing of on semiconductor?s product/patent coverage may be accessed at www.onsemi.com/site/pdf/patent?marking.pdf . on semiconductor reserves the right to make changes without further notice to any products herein. on semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does o n semiconductor assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including wi thout limitation special, consequential or incidental damages. buyer is responsible for its products and applications using on semiconductor products, including compliance with all laws, reg ulations and safety requirements or standards, regardless of any support or applications information provided by on semiconductor. ?typical? parameters which may be provided in on semiconductor data sheets and/or specifications can and do vary in dif ferent applications and actual performance may vary over time. all operating parameters, including ?typic als? must be validated for each customer application by customer?s technical experts. on semiconductor does not convey any license under its patent rights nor the right s of others. on semiconductor products are not designed, intended, or authorized for use as a critical component in life support systems or any fda class 3 medical devices or medical devices with a same or similar classification in a foreign jurisdiction or any devices intended for implantation in the human body. should buyer purchase or use on semicondu ctor products for any such unintended or unauthorized application, buyer shall indemnify and hold on semiconductor and its officers, employees, subsidiaries, affiliates, and distrib utors 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 on semiconductor was negligent regarding the design or manufacture of the part. on semiconductor is an equal opportunity/affirmative action employer. this literature is subject to all applicable copyright laws and is not for resale in any manner. p ublication 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 mc74vhct126a/d literature fulfillment : literature distribution center for on semiconductor 19521 e. 32nd pkwy, aurora, colorado 80011 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 loc al sales representative ?
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