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? semiconductor components industries, llc, 2011 may, 2011 ? rev. 9 1 publication order number: mc74hc4851a/d mc74hc4851a, mc74hc4852a analog multiplexers/ demultiplexers with injection current effect control automotive customized these devices are pin compatible to standard hc405x and mc1405xb analog mux/demux devices, but feature injection current effect control. this makes them especially suited for usage in automotive applications where voltages in excess of normal logic voltage are common. the injection current effect control allows signals at disabled analog input channels to exceed the supply voltage range without affecting the signal of the enabled analog channel. this eliminates the need for external diode/ resistor networks typically used to keep the analog channel signals within the supply voltage range. the devices utilize low power silicon gate cmos technology. the channel select and enable inputs are compatible with standard cmos outputs. features ? injection current cross ? coupling less than 1mv/ma (see figure 9) ? pin compatible to hc405x and mc1405xb devices ? power supply range (v cc ? gnd) = 2.0 to 6.0 v ? in compliance with the requirements of jedec standard no. 7a ? chip complexity: 154 fets or 36 equivalent gates ? these devices are pb ? free, halogen free and are rohs compliant http://onsemi.com marking diagrams soic ? 16 d suffix case 751b tssop ? 16 dt suffix case 948f 1 16 pdip ? 16 n suffix case 648 1 16 1 16 1 16 mc74hc485xan awlyywwg 1 16 hc485xag awlyww hc48 5xa alyw 1 16 x = 1 or 2 a = assembly location wl, l = wafer lot yy, y = year ww, w = work week g or = pb ? free package (note: microdot may be in either location) 1 16 soic ? 16 wide dw suffix case 751g 1 16 hc4851a awlywwg see detailed ordering and shipping information in the package dimensions section on page 12 of this data sheet. ordering information
mc74hc4851a, mc74hc4852a http://onsemi.com 2 figure 1. mc74hc4851a logic diagram single ? pole, 8 ? position plus common off x0 13 x1 14 x2 15 x3 12 x4 1 x5 5 x6 2 x7 4 a 11 b 10 c 9 enable 6 multiplexer/ demultiplexer x 3 analog inputs/ channel inputs pin 16 = v cc pin 8 = gnd common output/ input 15 16 14 13 12 11 10 2 1 34567 v cc 9 8 x2 x1 x0 x3 a b c x4 x6 x x7 x5 enable nc gnd figure 2. mc74hc4851a 16 ? lead pinout (top view) outputs select l l l l h h h h x l l h h l l h h x l h l h l h l h x function table ? mc74hc4851a control inputs on channels enable select cba x0 x1 x2 x3 x4 x5 x6 x7 none l l l l l l l l h figure 3. mc74hc4852a logic diagram double ? pole, 4 ? position plus common off x0 12 x1 14 x2 15 x3 11 y0 1 y1 5 y2 2 y3 4 a 10 b 9 enable 6 x switch y switch x 13 analog inputs/outputs channel\select inputs pin 16 = v cc pin 8 = gnd common outputs/inputs l l h h x l h l h x function table ? mc74hc4852a control inputs on channels enable select ba x0 x1 x2 x3 l l l l h x = don?t care figure 4. mc74hc4852a 16 ? lead pinout (top view) 15 16 14 13 12 11 10 2 1 34567 v cc 9 8 x2 x1 x x0 x3 a b y0 y2 y y3 y1 enable nc gnd y 3 y0 y1 y2 y3 none
mc74hc4851a, mc74hc4852a http://onsemi.com 3 ??????????????????????? ??????????????????????? ???? ???? ?????????????? ?????????????? ????? ????? ??? ??? ???? ???? v cc ?????????????? ?????????????? ????? ????? ??? ??? ???? ???? ?????????????? ?????????????? ????? ????? ??? ??? ???? ???? ?????????????? ?????????????? ????? ????? 25 ??? ??? ???? ???? ???? ?????????????? ?????????????? ?????????????? ????? ????? ????? ??? ??? ??? ???? ???? ?????????????? ?????????????? ????? ????? ??? ??? c ???? ???? ???? ?????????????? ?????????????? ?????????????? ????? ????? ????? ??? ??? ??? c stresses exceeding maximum ratings may damage the device. maximum ratings are stress ratings only. functional operation above the recom mended operating conditions is not implied. extended exposure to stresses above the recommended operating conditions may af fect device reliability. ?derating ? plastic dip: ? 10 mw/ c from 65 to 125 c soic package: ? 7 mw/ c from 65 to 125 c tssop package: ? 6.1 mw/ c from 65 to 125 c recommended operating conditions symbol parameter min max unit v cc positive dc supply voltage (referenced to gnd) 2.0 6.0 v v in dc input voltage (any pin) (referenced to gnd) gnd v cc v v io * static or dynamic voltage across switch 0.0 1.2 v t a operating temperature range, all package types ? 55 + 125 c t r , t f input rise/fall time v cc = 2.0 v (channel select or enable inputs) v cc = 4.5 v v cc = 6.0 v 0 0 0 1000 500 400 ns *for voltage drops across switch greater than 1.2 v (switch on), excessive v cc current may be drawn; i.e., the current out of the switch may contain both v cc and switch input components. the reliability of the device will be unaffected unless the maximum ratings are exceeded. dc characteristics ? digital section (voltages referenced to gnd) v ee = gnd, except where noted symbol parameter condition v cc v guaranteed limit unit ? 55 to 25 c 85 c 125 c v ih minimum high ? level input voltage, channel ? select or enable inputs r on = per spec 2.0 3.0 4.5 6.0 1.50 2.10 3.15 4.20 1.50 2.10 3.15 4.20 1.50 2.10 3.15 4.20 v v il maximum low ? level input voltage, channel ? select or enable inputs r on = per spec 2.0 3.0 4.5 6.0 0.50 0.90 1.35 1.80 0.50 0.90 1.35 1.80 0.50 0.90 1.35 1.80 v i in maximum input leakage current on digital pins (enable/a/b/c) v in = v cc or gnd 6.0 0.1 1.0 1.0 a i cc maximum quiescent supply current (per package) v in(digital) = v cc or gnd v in(analog) = gnd 6.0 2 20 40 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.
mc74hc4851a, mc74hc4852a http://onsemi.com 4 dc characteristics ? analog section symbol parameter condition v cc guaranteed limit unit ? 55 to 25 c 85 c 125 c r on maximum ?on? resistance v in = v il or v ih ;v is = v cc to gnd; i s 2.0 ma 2.0 3.0 4.5 6.0 1700 1100 550 400 1750 1200 650 500 1800 1300 750 600 r on delta ?on? resistance v in = v il or v ih ; v is = v cc /2 i s 2.0 ma 2.0 3.0 4.5 6.0 300 160 80 60 400 200 100 80 500 240 120 100 i off maximum off ? channel leakage current, any one channel common channel v in = v cc or gnd 6.0 0.1 0.1 0.1 0.1 0.1 0.1 a i on maximum on ? channel leakage channel ? to ? channel v in = v cc or gnd 6.0 0.1 0.1 0.1 a ac characteristics (c l = 50 pf, input t r = t f = 6 ns) symbol parameter v cc ? 55 to 25 c 85 c 125 c unit t phl , t plh maximum propagation delay, analog input to analog output 2.0 3.0 4.5 6.0 160 80 40 30 180 90 45 35 200 100 50 40 ns t phl , t phz,pzh t plh , t plz,pzl maximum propagation delay, enable or channel ? select to analog output 2.0 3.0 4.5 6.0 260 160 80 78 280 180 90 80 300 200 100 80 ns c in maximum input capacitance digital pins (all switches off) any single analog pin (all switches off) common analog pin 10 35 130 10 35 130 10 35 130 pf c pd power dissipation capacitance typical 5.0 20 pf injection current coupling specifications (v cc = 5v, t a = ? 55 c to +125 c) symbol parameter condition typ max unit v out maximum shift of output voltage of enabled analog channel i in * 1 ma, r s 3,9 k i in * 10 ma, r s 3,9 k i in * 1 ma, r s 20 k i in * 10 ma, r s 20 k 0.1 1.0 0.5 5.0 1.0 5.0 2.0 20 mv * i in = total current injected into all disabled channels.
mc74hc4851a, mc74hc4852a http://onsemi.com 5 figure 5. typical on resistance v cc = 2v figure 6. typical on resistance v cc = 3v figure 7. typical on resistance v cc = 4.5v figure 8. typical on resistance v cc = 6v v in , input voltage (volts), referenced to gnd r on , on resistance (ohms) -55 c +25 c +125 c v in , input voltage (volts), referenced to gnd r on , on resistance (ohms) -55 c +25 c +125 c v in , input voltage (volts), referenced to gnd r on , on resistance (ohms) -55 c +25 c +125 c v in , input voltage (volts), referenced to gnd r on , on resistance (ohms) -55 c +25 c +125 c 1100 1000 900 800 700 600 500 400 300 200 100 0 1100 1000 900 800 700 600 500 400 300 200 100 0 660 600 540 480 420 360 300 240 180 120 60 0 440 400 360 320 280 240 200 160 120 80 40 0 0.0 0.9 1.8 2.7 3.6 4.5 0.0 1.2 2.4 3.6 4.8 6.0 0.0 0.4 0.8 1.2 1.6 2.0 0.0 0.6 1.2 1.8 2.4 3.0
mc74hc4851a, mc74hc4852a http://onsemi.com 6 figure 9. injection current coupling specification current source hp4155c smu #2 vin1 = 4.9 v (smu3) iin1 meas. here vm1 connected here. vin2 / iin2 meas. here. gnd or v ss 3 notes: rs = 3.9 k or 20 k . notes: vm1 & vm2 are internal notes: hp4155c voltmeters. 16 4 13 6 8 external dc p.s. v cc = 5 v x vout vm2 connected here. x7 x0 rs
mc74hc4851a, mc74hc4852a http://onsemi.com 7 channel 1 channel 2 channel 3 channel 4 channel 5 channel 6 channel 7 channel 8 common out v cc hc4051a microcontroller a/d - input v cc 5v 6v 5v sensor (8x identical circuitry) figure 10. actual technology requires 32 passive components and one extra 6v regulator to suppress injection current into a standard hc4051 multiplexer channel 1 channel 2 channel 3 channel 4 channel 5 channel 6 channel 7 channel 8 common out v cc hc4851a microcontroller a/d - input v cc 5v sensor (8x identical circuitry) figure 11. mc74hc4851a solution solution by applying the hc4851a multiplexer
mc74hc4851a, mc74hc4852a http://onsemi.com 8 figure 12. on resistance test set ? up plotter mini computer programmable power supply dc analyzer v cc device under test + - analog in common out gnd figure 13. maximum off channel leakage current, any one channel, test set ? up off off 6 8 16 common o/i v cc v ih nc a v cc v ee v cc figure 14. maximum off channel leakage current, common channel, test set ? up off off 6 8 16 common o/i v cc v ih analog i/o v cc v ee v cc figure 15. maximum on channel leakage current, channel to channel, test set ? up on off 6 8 16 common o/i v cc v il v cc v ee v cc n/c a analog i/o figure 16. propagation delays, channel select to analog out figure 17. propagation delay, test set ? up channel select to analog out v cc gnd channel select analog out 50% t plh t phl 50% on/off 6 8 16 v cc c l * *includes all probe and jig capacitance channel select test point common o/i off/on analog i/o v cc
mc74hc4851a, mc74hc4852a http://onsemi.com 9 figure 18. propagation delays, analog in to analog out figure 19. propagation delay, test set ? up analog in to analog out figure 20. propagation delays, enable to analog out figure 21. propagation delay, test set ? up enable to analog out v cc gnd analog in analog out 50% t plh t phl 50% on 6 8 16 v cc c l * *includes all probe and jig capacitance test point common o/i analog i/o on/off 6 8 enable v cc enable 90% 50% 10% t f t r v cc gnd analog out t pzl analog out t pzh high impedance v ol v oh high impedance 10% 90% t plz t phz 50% 50% analog i/o c l * test point 16 v cc 10k 1 2 1 2 position 1 when testing t phz and t pzh position 2 when testing t plz and t pzl figure 22. power dissipation capacitance, test set ? up on/off 6 8 16 v cc channel select nc common o/i off/on analog i/o v cc a 11 v cc
mc74hc4851a, mc74hc4852a http://onsemi.com 10 13 x0 14 x1 15 x2 12 x3 1 x4 5 x5 2 x6 4 x7 3 x 11 a 10 b 9 c 6 enable figure 23. diagram of bipolar coupling mechanism appears if v in exceeds v cc , driving injection current into the substrate figure 24. function diagram, hc4851a + + + p+ p+ n - substrate (on v cc potential) gate = v cc (disabled) common analog output v out > v cc disabled analog mux input v in > v cc + 0.7v injection current control injection current control injection current control injection current control injection current control injection current control injection current control injection current control injection current control
mc74hc4851a, mc74hc4852a http://onsemi.com 11 figure 25. function diagram, hc4852a 10 a 9 b 6 enable 13 x0 14 x1 15 x2 12 x3 1 y0 5 y1 2 y2 4 y3 13 x injection current control injection current control injection current control injection current control injection current control injection current control injection current control injection current control injection current control 3 y injection current control
mc74hc4851a, mc74hc4852a http://onsemi.com 12 ordering information device package shipping ? mc74hc4851ang pdip ? 16 (pb ? free) 500 units / box mc74hc4851adg soic ? 16 (pb ? free) 48 units / rail mc74hc4851adr2g soic ? 16 (pb ? free) 2500 units / tape & reel mc74hc4851adtr2g tssop ? 16* 2500 units / tape & reel mc74hc4851adwg soic ? 16 wide (pb ? free) 48 units / rail mc74hc4851adwr2g soic ? 16 wide (pb ? free) 1000 units / tape & reel mc74hc4852ang pdip ? 16 (pb ? free) 500 units / box mc74hc4852adg soic ? 16 (pb ? free) 48 units / rail mc74hc4852adr2g soic ? 16 (pb ? free) 2500 units / tape & reel mc74hc4852adtr2g tssop ? 16* 2500 units / 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. *this package is inherently pb ? free.
mc74hc4851a, mc74hc4852a http://onsemi.com 13 package dimensions pdip ? 16 n suffix case 648 ? 08 issue t soic ? 16 d suffix case 751b ? 05 issue k notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: inch. 3. dimension l to center of leads when formed parallel. 4. dimension b does not include mold flash. 5. rounded corners optional. ? a ? b f c s h g d j l m 16 pl seating 18 9 16 k plane ? t ? m a m 0.25 (0.010) t dim min max min max millimeters inches a 0.740 0.770 18.80 19.55 b 0.250 0.270 6.35 6.85 c 0.145 0.175 3.69 4.44 d 0.015 0.021 0.39 0.53 f 0.040 0.70 1.02 1.77 g 0.100 bsc 2.54 bsc h 0.050 bsc 1.27 bsc j 0.008 0.015 0.21 0.38 k 0.110 0.130 2.80 3.30 l 0.295 0.305 7.50 7.74 m 0 10 0 10 s 0.020 0.040 0.51 1.01 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
mc74hc4851a, mc74hc4852a http://onsemi.com 14 tssop ? 16 dt suffix case 948f ? 01 issue b soic ? 16 wide dw suffix case 751g ? 03 issue c d 14x b 16x seating plane s a m 0.25 b s t 16 9 8 1 h x 45 m b m 0.25 h 8x e b a e t a1 a l c notes: 1. dimensions are in millimeters. 2. interpret dimensions and tolerances per asme y14.5m, 1994. 3. dimensions d and e do not inlcude mold protrusion. 4. maximum mold protrusion 0.15 per side. 5. dimension b does not include dambar protrusion. allowable dambar protrusion shall be 0.13 total in excess of the b dimension at maximum material condition. 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 10.15 10.45 e 7.40 7.60 e 1.27 bsc h 10.05 10.55 h 0.25 0.75 l 0.50 0.90 q 0 7 ??? ??? 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 ? 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
mc74hc4851a, mc74hc4852a http://onsemi.com 15 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. ?typical? 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 ?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 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 of ficers, 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. mc74hc4851a/d 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 ? 5773 ? 3850 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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