? semiconductor components industries, llc, 2005 january, 2005 ? rev. 3 1 publication order number: mc74lcx139/d mc74lcx139 dual low-voltage cmos 2-to-4 decoder/demultiplexer with 5v?tolerant inputs the mc74lcx139 is a high performance, 2?to?4 decoder/ demultiplexer 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 mc74lcx139 inputs to be safely driven from 5 v devices. the mc74lcx139 is suitable for memory address decoding and other ttl level bus oriented applications. the mc74lcx139 high?speed 2?to?4 decoder/demultiplexer accepts two binary weighted inputs (a0, a1) and, when enabled, provides four mutually exclusive active?low outputs. the lcx139 features an active low enable input. all outputs will be high unless en is low. the lcx139 can be used as an 8?output demultiplexer by using one of the active?low enable inputs as the data input and the other enable input as a strobe. the enable inputs which are not used must be permanently tied to ground. current drive capability is 24 ma at the outputs. features ? designed for 2.3 to 3.6 v v cc operation ? 5 v tolerant inputs ? interface capability with 5 v ttl logic ? lvttl compatible ? lvcmos compatible ? 24 ma balanced output sink and source capability ? near zero static supply current (10 a) substantially reduces system power requirements ? latchup performance exceeds 500 ma ? esd performance: human body model >2000 v machine model >200 v ? pb?free packages are available* *for additional information on our pb?free strategy and soldering details, please download the on semiconductor soldering and mounting techniques reference manual, solderrm/d. marking diagrams a = assembly location l, wl = wafer lot y = year w, ww = work week soic?16 d suffix case 751b lcx139 awlyww lcx 139 alyw tssop?16 dt suffix case 948f soeiaj?16 m suffix case 966 74lcx139 alyw 16 1 16 16 1 1 16 1 16 1 16 1 see detailed ordering and shipping information in the package dimensions section on page 3 of this data sheet. ordering information http://onsemi.com
mc74lcx139 http://onsemi.com 2 13 14 15 16 9 10 11 12 5 4 3 2 1 8 7 6 ea a1a a0a gnd a1b a0b eb v cc y0a y1a y2a y3a y0b y1b y2b y3b figure 1. pin assignment truth table inputs outputs e a1 a0 y0 y1 y2 y3 hxxhhhh llllhhh llhhlhh lhlhhlh lhhhhhl pin names function address inputs enable inputs outputs pins a0n?a1n en y0 n?y3 n figure 2. iec logic diagram a0a a1a ea a0b a1b 1 eb y0a y1a y2a y3a y0b y1b y2b y3b active?low outputs address inputs active?low outputs 3 2 address inputs 13 14 15 4 5 6 7 12 11 10 9 4 figure 3. logic diagram y0a y1a y2a y3a y0b y1b y2b y3b 5 6 7 12 11 10 9 15 14 13 1 2 3 a1a a0a ea a1b a0b eb 2 1 en x/y 1 0 2 3 0 1 dmux 1 0 2 3 g 0 3 15 14 13 1 2 3 a1a a0a ea a1b a0b eb y0a y1a y2a y3a y0b y1b y2b y3b 4 5 6 7 12 11 10 9 en a0 a1 y0 y1 y2 y3 figure 4. expanded logic diagram (1/2 of device) h = high voltage level; l = low voltage level; z = high impedance state
mc74lcx139 http://onsemi.com 3 maximum ratings symbol parameter value condition unit 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 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 maximum ratings are those values beyond which device damage can occur. maximum ratings applied to the device are individual str ess limit values (not normal operating conditions) and are not valid simultaneously. if these limits are exceeded, device functional operation i s not implied, damage may occur and reliability may be affected. 1. i o absolute maximum rating must be observed. recommended operating conditions symbol parameter min typ max unit v cc supply voltage operating data retention only 2.0 1.5 2.3 to 3.3 3.6 3.6 v v i input voltage 0 5.5 v v o output voltage (high or low state) 0 v cc v i oh high level output current v cc = 3.0 v ? 3.6 v v cc = 2.7 v ? 3.0 v v cc = 2.3 v ? 2.7 v ?24 ?12 ?8 ma i ol low level output current v cc = 3.0 v ? 3.6 v v cc = 2.7 v ? 3.0 v v cc = 2.3 v ? 2.7 v +24 +12 +8 ma t a operating free?air temperature ?40 +85 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 ordering information device package shipping 2 mc74lcx138d soic?16 48 units / rail MC74LCX138DR2 soic?16 2500 tape & reel MC74LCX138DR2g soic?16 (pb?free) 2500 tape & reel mc74lcx138dt tssop?16* 96 units / rail mc74lcx138dtr2 tssop?16* 2500 tape & reel mc74lcx138m soeiaj?16 48 units / rail mc74lcx138mel soeiaj?16 2000 tape & reel 2for information on tape and reel specifications, including part orientation and tape sizes, please refer to our tape and reel packaging specifications brochure, brd8011/d. *this package is inherently pb?free.
mc74lcx139 http://onsemi.com 4 dc electrical characteristics t a = ?40 c to +85 c symbol characteristic condition min max unit v ih high level input voltage (note 2) 2.3 v v cc 2.7 v 1.7 v ih g( ) 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 il g( ) 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 oh g v cc = 2.3 v; i oh = ?8 ma 1.7 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 ol g v cc = 2.3 v; i ol = 8 ma 0.7 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 i input leakage current 2.3 v v cc 3.6 v; 0 v v i 5.5 v 5 a i cc quiescent supply current 2.3 v cc 3.6 v; v i = gnd or v cc 10 a cc y 2.3 v cc 3.6 v; 3.6 v i or v o 5.5 v 10 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; c l = 50 pf; r l = 500 limits t a = ?40 c to +85 c v cc = 3.0 v to 3.6 v v cc = 2.7 v v cc = 2.3 v to 2.7 v c l = 50 pf c l = 50 pf c l = 30pf symbol parameter min max min max min max unit t plh t phl propagation delay a to y 0.8 0.8 6.2 6.2 1.0 1.0 7.3 7.3 0.8 0.8 9.3 9.3 ns ns t plh t phl propagation delay e to y 0.8 0.8 4.7 4.7 1.0 1.0 5.2 5.2 0.8 0.8 7.2 7.2 ns ns t oshl t oslh output?to?output skew (note 3) 1.0 1.0 ns ns 3. skew is defined as the absolute value of the difference 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. capacitive characteristics symbol parameter condition typical unit 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 10mhz, v cc = 3.3 v, v i = 0 v or v cc 25 pf
mc74lcx139 http://onsemi.com 5 figure 5. waveform 1 prop delays 50% t phl t plh v cc gnd y 50% v cc a v cc gnd t phl t plh y e 50% v cc 50% figure 6. waveform 2 output enable pulse generator r t dut v cc r l c l figure 7. test circuit c l = 50 pf or equivalent (includes jig and probe capacitance) r l = r 1 = 500 or equivalent r t = z out of pulse generator (typically 50 )
mc74lcx139 http://onsemi.com 6 package dimensions soic?16 d suffix case 751b?05 issue j notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: millimeter. 3. dimensions a and b do not include mold protrusion. 4. maximum mold protrusion 0.15 (0.006) per side. 5. dimension d does not include dambar protrusion. allowable dambar protrusion shall be 0.127 (0.005) total in excess of the d dimension at maximum material condition. 18 16 9 seating plane f j m r x 45 g 8 pl p ?b? ?a? m 0.25 (0.010) b s ?t? d k c 16 pl s b m 0.25 (0.010) a s t dim min max min max inches millimeters a 9.80 10.00 0.386 0.393 b 3.80 4.00 0.150 0.157 c 1.35 1.75 0.054 0.068 d 0.35 0.49 0.014 0.019 f 0.40 1.25 0.016 0.049 g 1.27 bsc 0.050 bsc j 0.19 0.25 0.008 0.009 k 0.10 0.25 0.004 0.009 m 0 7 0 7 p 5.80 6.20 0.229 0.244 r 0.25 0.50 0.010 0.019 tssop?16 dt suffix case 948f?01 issue o ?? ?? 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 0.18 0.28 0.007 0.011 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-. section n?n seating plane ident. pin 1 1 8 16 9 detail e j j1 b c d a k k1 h g detail e f m l 2x l/2 -u- s u 0.15 (0.006) t s u 0.15 (0.006) t s u m 0.10 (0.004) v s t 0.10 (0.004) ?t? ?v? ?w? 0.25 (0.010) 16x ref k n n
mc74lcx139 http://onsemi.com 7 package dimensions soeiaj?16 m suffix case 966?01 issue o h e a 1 dim min max min max inches --- 2.05 --- 0.081 millimeters 0.05 0.20 0.002 0.008 0.35 0.50 0.014 0.020 0.18 0.27 0.007 0.011 9.90 10.50 0.390 0.413 5.10 5.45 0.201 0.215 1.27 bsc 0.050 bsc 7.40 8.20 0.291 0.323 0.50 0.85 0.020 0.033 1.10 1.50 0.043 0.059 0 0.70 0.90 0.028 0.035 --- 0.78 --- 0.031 a 1 h e q 1 l e 10 0 10 l e q 1 notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: millimeter. 3. dimensions d and e do not include mold flash or protrusions and are measured at the parting line. mold flash or protrusions shall not exceed 0.15 (0.006) per side. 4. terminal numbers are shown for reference only. 5. the lead width dimension (b) does not include dambar protrusion. allowable dambar protrusion shall be 0.08 (0.003) total in excess of the lead width dimension at maximum material condition. dambar cannot be located on the lower radius or the foot. minimum space between protrusions and adjacent lead to be 0.46 ( 0.018). m l detail p view p c a b e m 0.13 (0.005) 0.10 (0.004) 1 16 9 8 d z e a b c d e e l m z
mc74lcx139 http://onsemi.com 8 on semiconductor and are registered trademarks of semiconductor components industries, llc (scillc). scillc reserves the right to mak e changes without further notice to any products herein. scillc makes no warranty, representation or guarantee regarding the suitability of its products for an y 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 wi thout limitation special, consequential or incidental damages. atypicalo parameters which may be provided in scillc data sheets and/or specifications can and do vary in different application s and actual performance may vary over time. all operating parameters, including atypicalso must be validated for each customer application by customer's technical experts. scillc does not convey any license under its patent rights nor the rights of others. scillc products are not designed, intended, or authorized 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 which the failure of the scillc product could create a sit uation where personal injury or death may occur. should buyer purchase or use scillc products for any such unintended or unauthorized application, buyer shall indemnify and hold scillc and its officers, employees, subsidiaries, af filiates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, direct ly 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 manufacture 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. publication ordering information n. american technical support : 800?282?9855 toll free usa/canada japan : on semiconductor, japan customer focus center 2?9?1 kamimeguro, meguro?ku, tokyo, japan 153?0051 phone : 81?3?5773?3850 mc74lcx139/d literature fulfillment : literature distribution center for on semiconductor p.o. box 61312, phoenix, arizona 85082?1312 usa phone : 480?829?7710 or 800?344?3860 toll free usa/canada fax : 480?829?7709 or 800?344?3867 toll free usa/canada email : orderlit@onsemi.com on semiconductor website : http://onsemi.com order literature : http://www.onsemi.com/litorder for additional information, please contact your local sales representative.
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