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? semiconductor components industries, llc, 2002 june, 2002 rev. 5 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. ? injection current crosscoupling 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 marking diagrams 1 16 pdip16 n suffix case 648 hc485xan awlyyww soic16 d suffix case 751b tssop16 dt suffix case 948f 1 16 hc485xad awlyww hc48 5xa alyw 1 16 a = assembly location wl or l = wafer lot yy or y = year ww or w = work week soic16 wide dw suffix case 751g 1 16 hc485xadw awlyww see detailed ordering and shipping information in the package dimensions section on page 10 of this data sheet. ordering information http://onsemi.com
mc74hc4851a, mc74hc4852a http://onsemi.com 2 figure 1. mc74hc4851a logic diagram singlepole, 8position 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 16lead 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 doublepole, 4position 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 channelselect 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 16lead 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 ??????????????????????? ??????????????????????? maximum ratings* ???? ???? symbol ????????????? ????????????? parameter ?????? ?????? value ??? ??? unit ???? ???? v cc ????????????? ????????????? positive dc supply voltage (referenced to gnd) ?????? ?????? 0.5 to + 7.0 ??? ??? v ???? ???? v in ????????????? ????????????? dc input voltage (any pin) (referenced to gnd) ?????? ?????? 0.5 to v cc + 0.5 ??? ??? v ???? ???? i ????????????? ????????????? dc current, into or out of any pin ?????? ?????? 25 ??? ??? ma ???? ? ?? ? ???? p d ????????????? ? ??????????? ? ????????????? power dissipation in still air, plastic dip2 soic package2 tssop package2 ?????? ? ???? ? ?????? 750 500 450 ??? ? ? ? ??? mw ???? ???? t stg ????????????? ????????????? storage temperature range ?????? ?????? 65 to + 150 ??? ??? c ???? ? ?? ? ???? t l ????????????? ? ??????????? ? ????????????? lead temperature, 1 mm from case for 10 seconds plastic dip, soic or tssop package ?????? ? ???? ? ?????? 260 ??? ? ? ? ??? c *maximum ratings are those values beyond which damage to the device may occur. functional operation should be restricted to the recommended operating conditions. 2derating e 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 for high frequency or heavy load considerations, see chapter 2 of the on semiconductor highspeed cmos data book (dl129/d). 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 compo- nents. the reliability of the device will be unaffected unless the maximum ratings are exceeded. dc characteristics e digital section (voltages referenced to gnd) v ee = gnd, except where noted v cc guaranteed limit symbol parameter condition v cc v 55 to 25 c 85 c 125 c unit v ih minimum highlevel input voltage, channelselect 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 lowlevel input voltage, channelselect 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 note: information on typical parametric values can be found in chapter 2 of the on semic onductor highspeed cmos data book (dl129/d). 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 highimpedance 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 e analog section guaranteed limit symbol parameter condition v cc 55 to 25 c 85 c 125 c unit r on maximum aono 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 aono 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 offchannel leakage current, any one channel common channel v in = v cc or gnd 6.0 0.1 0.2 0.5 2.0 1.0 4.0 a i on maximum onchannel leakage channeltochannel v in = v cc or gnd 6.0 0.2 2.0 4.0 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 channelselect to analog output 2.0 3.0 4.5 6.0 260 160 80 60 280 180 90 70 300 200 100 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 typ max unit condition v out maximum shift of output voltage of enabled analog channel 0.1 1.0 0.5 5.0 1.0 5.0 2.0 20 mv 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 * 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 v cc = 5v i in v in 2 < v ss or v cc < v in 2 any disabled channel v ss < v in 1 < v cc enabled channel r s v out = v in 1 v out figure 9. injection current coupling specification 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 7 figure 12. on resistance test setup 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 setup 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 setup 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 setup 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 setup 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 8 figure 18. propagation delays, analog in to analog out figure 19. propagation delay, test setup analog in to analog out figure 20. propagation delays, enable to analog out figure 21. propagation delay, test setup 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 setup 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 9 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 10 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 ordering & shipping information device package shipping mc74hc4851an pdip16 500 units / unit pak mc74hc4851ad soic16 48 units / rail mc74hc4851adr2 soic16 2500 units / tape & reel mc74hc4851adw soic16 wide 48 units / rail mc74hc4851adwr2 soic16 wide 1000 units / tape & reel mc74hc4851adt tssop16 96 units / rail mc74hc4851adtr2 tssop16 2500 units / tape & reel mc74hc4852an pdip16 500 units / unit pak mc74hc4852ad soic16 48 units / rail mc74hc4852adr2 soic16 2500 units / tape & reel mc74hc4852adw soic16 wide 48 units / rail mc74hc4852adwr2 soic16 wide 1000 units / tape & reel mc74hc4852adtr2 tssop16 2500 units / tape & reel
mc74hc4851a, mc74hc4852a http://onsemi.com 11 package dimensions pdip16 n suffix case 64808 issue r min min max max inches millimeters dim a b c d f g h j k l m s 18.80 6.35 3.69 0.39 1.02 0.21 2.80 7.50 0 0.51 19.55 6.85 4.44 0.53 1.77 0.38 3.30 7.74 10 1.01 0.740 0.250 0.145 0.015 0.040 0.008 0.110 0.295 0 0.020 0.770 0.270 0.175 0.021 0.070 0.015 0.130 0.305 10 0.040 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. 2.54 bsc 1.27 bsc 0.100 bsc 0.050 bsc a b 18 9 16 f h g d 16 pl s c t seating plane k j m l ta 0.25 (0.010) m m 0.25 (0.010) t b a m s s min min max max millimeters inches dim a b c d f g j k m p r 9.80 3.80 1.35 0.35 0.40 0.19 0.10 0 5.80 0.25 10.00 4.00 1.75 0.49 1.25 0.25 0.25 7 6.20 0.50 0.386 0.150 0.054 0.014 0.016 0.008 0.004 0 0.229 0.010 0.393 0.157 0.068 0.019 0.049 0.009 0.009 7 0.244 0.019 1.27 bsc 0.050 bsc 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. 1 8 9 16 a b d 16pl k c g t seating plane r x 45 m j f p 8 pl 0.25 (0.010) b m m soic16 d suffix case 751b05 issue j soic16 wide dw suffix case 751g03 issue b dim min max min max inches millimeters a 10.15 10.45 0.400 0.411 b 7.40 7.60 0.292 0.299 c 2.35 2.65 0.093 0.104 d 0.35 0.49 0.014 0.019 f 0.50 0.90 0.020 0.035 g 1.27 bsc 0.050 bsc j 0.25 0.32 0.010 0.012 k 0.10 0.25 0.004 0.009 m 0 7 0 7 p 10.05 10.55 0.395 0.415 r 0.25 0.75 0.010 0.029 m b m 0.010 (0.25) 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 0.13 (0.005) total in excess of d dimension at maximum material condition. a b p 8x g 14x d 16x seating plane t s a m 0.010 (0.25) b s t 16 9 8 1 f j r x 45 m c k
mc74hc4851a, mc74hc4852a http://onsemi.com 12 package dimensions tssop16 dt suffix case 948f01 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 nn 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 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 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. atypicalo 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 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 indem nify and hold scillc and its of ficers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and re asonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized u se, even if such claim alleges that scillc was negligent regarding the design or manufacture of the part. scillc is an equal opportunity/affirmative action employ er. publication ordering information japan : on semiconductor, japan customer focus center 4321 nishigotanda, shinagawaku, tokyo, japan 1410031 phone : 81357402700 email : r14525@onsemi.com on semiconductor website : http://onsemi.com for additional information, please contact your local sales representative. mc74hc4851a/d literature fulfillment : literature distribution center for on semiconductor p.o. box 5163, denver, colorado 80217 usa phone : 3036752175 or 8003443860 toll free usa/canada fax : 3036752176 or 8003443867 toll free usa/canada email : onlit@hibbertco.com n. american technical support : 8002829855 toll free usa/canada

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