? semiconductor components industries, llc, 2012 july, 2012 ? rev. 11 1 publication order number: mc74lcx244/d mc74lcx244 low-voltage cmos octal buffer with 5 v ? tolerant inputs and outputs (3 ? state, non ? inverting) the mc74lcx244 is a high performance, non ? inverting octal buffer operating from a 2.3 to 3.6 v supply. high impedance ttl compatible inputs significantly reduce current loading to input drivers while ttl compatible outputs offer improved switching noise performance. a v i specification of 5.5 v allows mc74lcx244 inputs to be safely driven from 5 v devices. the mc74lcx244 is suitable for memory address driving and all ttl level bus oriented transceiver applications. current drive capability is 24 ma at the outputs. the output enable (oe ) input, when high, disables the output by placing them in a high z condition. features ? designed for 2.3 to 3.6 v v cc operation ? 5 v tolerant ? interface capability with 5 v ttl logic ? supports live insertion and withdrawal ? i off specification guarantees high impedance when v cc = 0 v ? lvttl compatible ? lvcmos compatible ? 24 ma balanced output sink and source capability ? near zero static supply current in all three logic states (10 a) substantially reduces system power requirements ? latchup performance exceeds 500 ma ? esd performance: ? human body model >2000 v ? machine model >200 v ? these devices are pb ? free, halogen free/bfr free and are rohs compliant 1 20 marking diagrams a = assembly location l, wl = wafer lot y, yy = year w, ww = work week g or =pb ? free package soic ? 20 wb dw suffix case 751d lcx244 awlyywwg lcx 244 alyw tssop ? 20 dt suffix case 948e 1 1 20 1 20 20 see detailed ordering and shipping information in the package dimensions section on page 6 of this data sheet. ordering information http://onsemi.com (note: microdot may be in either location) qfn20 mn suffix case 485aa 1 lcx 244 alyw
mc74lcx244 http://onsemi.com 2 figure 1. pinouts: 20 ? lead (top view) pin names function output enable inputs data inputs 3 ? state outputs pins noe 1dn, 2dn 1on, 2on truth table outputs inputs l l h 1oe 2oe 1dn 2dn l h x l h z h = high voltage level l = low voltage level z = high impedance state x = high or low voltage level and transitions are acceptable for i cc reasons, do not float inputs figure 2. logic diagram 19 20 18 17 16 15 14 2 1 34567 v cc 13 8 12 9 11 10 2oe 1o0 2d0 1o1 2d1 1o2 2d2 1o3 2d3 1oe 1d0 2o0 1d1 2o1 1d2 2o2 1d3 2o3 gnd 1oe 1 1d0 2 1o0 18 1d1 4 1o1 16 1d2 6 1o2 14 1d3 8 1o3 12 2oe 19 2d0 17 2o0 3 2d1 15 2o1 5 2d2 13 2o2 7 2d3 11 2o3 9 1on, 2on pin #1 29 19 12 20 10 11 qfn
mc74lcx244 http://onsemi.com 3 maximum ratings symbol parameter value condition units v cc dc supply voltage ? 0.5 to +7.0 v v i dc input voltage ? 0.5 v i +7.0 v v o dc output voltage ? 0.5 v o +7.0 output in 3 ? state v ? 0.5 v o v cc + 0.5 output in high or low state (note 1) v i ik dc input diode current ? 50 v i < gnd ma i ok dc output diode current ? 50 v o < gnd ma +50 v o > v cc ma i o dc output source/sink current 50 ma i cc dc supply current per supply pin 100 ma i gnd dc ground current per ground pin 100 ma t stg storage temperature range ? 65 to +150 c msl moisture sensitivity level 1 stresses exceeding maximum ratings may damage the device. maximum ratings are stress ratings only. functional operation above t he recommended operating conditions is not implied. extended exposure to stresses above the recommended operating conditions may af fect device reliability. 1. i o absolute maximum rating must be observed. recommended operating conditions symbol parameter min typ max units v cc supply voltage operating data retention only 2.0 1.5 2.5, 3.3 2.5, 3.3 3.6 3.6 v v i input voltage 0 5.5 v v o output voltage high or low state 3 ? state 0 0 v cc 5.5 v i oh high level output current v cc = 3.0 v ? 3.6 v v cc = 2.7 v ? 3.0 v ? 24 ? 12 ma i ol low level output current v cc = 3.0 v ? 3.6 v v cc = 2.7 v ? 3.0 v 24 12 ma t a operating free ? air temperature ? 55 +125 c t/ v input transition rise or fall rate, v in from 0.8 v to 2.0 v, v cc = 3.0 v 0 10 ns/v
mc74lcx244 http://onsemi.com 4 dc electrical characteristics t a = ? 55 c to +125 c symbol characteristic condition min max units v ih high level input voltage (note 2) 2.3 v v cc 2.7 v 1.7 v 2.7 v v cc 3.6 v 2.0 v il low level input voltage (note 2) 2.3 v v cc 2.7 v 0.7 v 2.7 v v cc 3.6 v 0.8 v oh high level output voltage 2.3 v v cc 3.6 v; i ol = 100 a v cc ? 0.2 v v cc = 2.3 v; i oh = ? 8 ma 1.8 v cc = 2.7 v; i oh = ? 12 ma 2.2 v cc = 3.0 v; i oh = ? 18 ma 2.4 v cc = 3.0 v; i oh = ? 24 ma 2.2 v ol low level output voltage 2.3 v v cc 3.6 v; i ol = 100 a 0.2 v v cc = 2.3 v; i ol = 8 ma 0.6 v cc = 2.7 v; i ol = 12 ma 0.4 v cc = 3.0 v; i ol = 16 ma 0.4 v cc = 3.0 v; i ol = 24 ma 0.55 i oz 3 ? state output current v cc = 3.6 v, v in = v ih or v il , v out = 0 to 3.6 v 5 a i off power off leakage current v cc = 0, v in = 3.6 v or v out = 3.6 v 10 a i in input leakage current v cc = 0 to 3.6 v, v in = 3.6 v or gnd 5 a i cc quiescent supply current v cc = 3.6 v, v in = 3.6 v or v out = 3.6 v 10 a i cc increase in i cc per input 2.3 v cc 3.6 v; v ih = v cc ? 0.6 v 500 a 2. these values of v i are used to test dc electrical characteristics only. ac characteristics (t r = t f = 2.5 ns; r l = 500 ) limits t a = ? 55 c to +125 c v cc = 3.0 v to 3.6 v v cc = 2.7 v v cc = 2.5 v 0.2 c l = 50 pf c l = 50 pf c l = 30 pf symbol parameter waveform min max min max min max units t plh t phl propagation delay input to output 1 1.5 1.5 6.5 6.5 1.5 1.5 7.5 7.5 1.5 1.5 7.8 7.8 ns t pzh t pzl output enable time to high and low level 2 1.5 1.5 8.0 8.0 1.5 1.5 9.0 9.0 1.5 1.5 10 10 ns t phz t plz output disable time from high and low level 2 1.5 1.5 7.0 7.0 1.5 1.5 8.0 8.0 1.5 1.5 8.4 8.4 ns t oshl t oslh output ? to ? output skew (note 3) 1.0 1.0 ns 3. skew is defined as the absolute value of the dif ference between the actual propagation delay for any two separate outputs of the same d evice. the specification applies to any outputs switching in the same direction, either high ? to ? low (t oshl ) or low ? to ? high (t oslh ); parameter guaranteed by design.
mc74lcx244 http://onsemi.com 5 dynamic switching characteristics t a = +25 c symbol characteristic condition min typ max units v olp dynamic low peak voltage (note 4) v cc = 3.3 v, c l = 50 pf, v ih = 3.3 v, v il = 0 v v cc = 2.5 v, c l = 30 pf, v ih = 2.5 v, v il = 0 v 0.8 0.6 v v olv dynamic low valley voltage (note 4) v cc = 3.3 v, c l = 50 pf, v ih = 3.3 v, v il = 0 v v cc = 2.5 v, c l = 30 pf, v ih = 2.5 v, v il = 0 v ? 0.8 ? 0.6 v 4. number of outputs defined as ?n?. measured with ?n ? 1? outputs switching from high ? to ? low or low ? to ? high. the remaining output is measured in the low state. capacitive characteristics symbol parameter condition typical units c in input capacitance v cc = 3.3 v, v i = 0 v or v cc 7 pf c out output capacitance v cc = 3.3 v, v i = 0 v or v cc 8 pf c pd power dissipation capacitance 10 mhz, v cc = 3.3 v, v i = 0 v or v cc 25 pf v cc 0 v v oh v ol 1dn, 2dn 1on, 2on t phl t plh v cc 0 v 0 v 1oe , 2oe 1on, 2on t pzh 3.0 v t phz t pzl t plz 1on, 2on vmo vmo vmi vmi vmo vmo figure 3. ac waveforms vmi v cc v oh - 0.3 v v ol + 0.3 v gnd waveform 1 ? propagation delays t r = t f = 2.5 ns, 10% to 90%; f = 1 mhz; t w = 500 ns waveform 2 ? output enable and disable times t r = t f = 2.5 ns, 10% to 90%; f = 1 mhz; t w = 500 ns symbol v cc 3.3 v 0.3 v 2.7 v 2.5 v 0.2 v vmi vmo v hz v lz vmi 1.5 v 1.5 v v ol + 0.3 v v oh ? 0.3 v 1.5 v 1.5 v v ol + 0.3 v v oh ? 0.3 v v cc /2 v cc /2 v ol + 0.15 v v oh ? 015 v
mc74lcx244 http://onsemi.com 6 open pulse generator r t dut v cc r l r 1 c l 6 v gnd test switch t plh , t phl open t pzl , t plz 6 v at v cc = 3.3 0.3 v 6 v at v cc = 2.5 0.2 v open collector/drain t plh and t phl 6 v t pzh , t phz gnd c l = 50 pf at v cc = 3.3 0.3 v or equivalent (includes jig and probe capacitance) c l = 30 pf at v cc = 2.5 0.2 v or equivalent (includes jig and probe capacitance) r l = r 1 = 500 or equivalent r t = z out of pulse generator (typically 50 ) figure 4. test circuit ordering information device package shipping ? MC74LCX244DWG soic ? 20 wb (pb ? free) 38 units / rail mc74lcx244dwr2g soic ? 20 wb (pb ? free) 1000 / tape & reel mc74lcx244dtg tssop ? 20 (pb ? free) 75 units / rail mc74lcx244dtr2g tssop ? 20 (pb ? free) 2500 / tape & reel mc74lcx244mntwg qfn20 (pb ? free) 3000 / 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.
mc74lcx244 http://onsemi.com 7 package dimensions 20 1 11 10 b 20x h 10x c l 18x a1 a seating plane h x 45 e d m 0.25 m b m 0.25 s a s b t e t b a dim min max millimeters a 2.35 2.65 a1 0.10 0.25 b 0.35 0.49 c 0.23 0.32 d 12.65 12.95 e 7.40 7.60 e 1.27 bsc h 10.05 10.55 h 0.25 0.75 l 0.50 0.90 0 7 notes: 1. dimensions are in millimeters. 2. interpret dimensions and tolerances per asme y14.5m, 1994. 3. dimensions d and e do not include mold protrusion. 4. maximum mold protrusion 0.15 per side. 5. dimension b does not include dambar protrusion. allowable protrusion shall be 0.13 total in excess of b dimension at maximum material condition. soic ? 20 wb case 751d ? 05 issue g
mc74lcx244 http://onsemi.com 8 package dimensions tssop ? 20 case 948e ? 02 issue c dim a min max min max inches 6.60 0.260 millimeters 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 0.27 0.37 0.011 0.015 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 ? . 110 11 20 pin 1 ident a b ? t ? 0.100 (0.004) c d g h section n ? n k k1 jj1 n n m f ? w ? seating plane ? v ? ? u ? s u m 0.10 (0.004) v s t 20x ref k l l/2 2x s u 0.15 (0.006) t detail e 0.25 (0.010) detail e 6.40 0.252 --- --- s u 0.15 (0.006) t 7.06 16x 0.36 16x 1.26 0.65 dimensions: millimeters 1 pitch soldering footprint
mc74lcx244 http://onsemi.com 9 package dimensions case 485aa ? 01 issue b dim min max millimeters a a1 0.00 0.05 a3 b 0.20 0.30 d 2.50 bsc d2 0.85 1.15 e 4.50 bsc e2 e 0.50 bsc k 0.20 --- notes: 1. dimensioning and tolerancing per asme y14.5m, 1994. 2. controlling dimension: millimeters. 3. dimensions b applies to plated terminal and is measured between 0.25 and 0.30 mm from terminal. 4. coplanarity applies to the exposed pad as well as the terminals. 0.20 ref b d2 l pin one reference e2 1 9 19 12 11 d e b a c 0.15 c 0.15 2x 2x e 2 e 20x 20x 0.10 c 0.05 c a b note 3 a 20x k 20x a1 (a3) seating plane c 0.08 c 0.10 0.80 1.00 l 0.35 0.45 2.85 3.15 top view side view c bottom view 20 on semiconductor and are registered trademarks of semiconductor co mponents industries, llc (scillc). scillc owns the rights to a numb er of patents, trademarks, copyrights, trade secrets, and other intellectual property. a list ing of scillc?s product/patent coverage may be accessed at ww w.onsemi.com/site/pdf/patent ? marking.pdf. scillc reserves the right to make changes without further notice to any products herein. scillc makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does scillc assume any liability arising out of the application or use of any product or circuit, and s pecifically disclaims any and all liability, including without limitation special, consequential or incidental damages. ?typical? 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 parame ters, 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 a uthorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in whic h the failure of the scillc product could create a situation where personal injury or death may occur. should buyer purchase or us e scillc products for any such unintended or unauthorized appli cation, buyer shall indemnify and hold scillc and its officers, employees, subsidiaries, affiliates, and distributors 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 unin tended or unauthorized use, even if such claim alleges that scil lc was negligent regarding the design or manufacture of the part. scillc is an equal opportunity/affirmative action employer. this literature is subject to all applicable copyrig ht laws and is not for resale in any manner. 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 mc74lcx244/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
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