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1 m e m o r y all data sheets are subject to change without notice (858) 503-3300 - fax: (858) 503-3301 - www.maxwell.com 128 channel multiplexer 81840 ?2021 maxwell technologies all rights reserved. 06.17.02 rev 5 f eatures : ? 128 channel multiplexer, mcm package: - 256 pin r ad -p ak ? quad flat pack total dose hardness: - > 300 krads(si) - dependent upon orbit excellent single event effects: sel: > 110 mev-cm 2 /mg seu: > 110 mev-cm 2 /mg d escription : maxwell technologies? 81840 high-performance 128-channel multiplexer features a typical 300 krad (si) total dose tolerance. this datasheet defines the design, performance, and test require- ments for a hermetic, telemetry multiplexer, multi-chip-module (mcm), utilizing chip and wire technology to be used in space systems. the 81840 is intended for use in the environments encountered by high reliability spacecraft applications. the pat- ented radiation-hardened r ad -p ak ? technology incorporates radi- ation shielding in the microcircuit package. capable of surviving in-space environment, the 81840 is ideal for satellite, spacecraft, and space probe missions. it is available up to class k screening. 16:1 1840a 16:1 1840a 16:1 1840a 16:1 1840a 16:1 1840a 16:1 1840a 16:1 1840a (8 total 1840a?s) grnd 5 4 grnd 5 4 grnd grnd out in in out 8 8 5 16 16 grnd 8 5 grnd 8 5 in out 8 8 grnd 8 5 in negative output positive output out 4 4 84 address enable 128 total analog inputs ground reference inputs spare inputs address enable spare output address enable 7 spare input vref (+5v) grnd address enable spare output address enable 8 8 in in address enable common to all input mux?s clamp/ precharge address enable cascade input bypass v+ (+15v) v- (-15v) + - in in see page 2 for pin assignments. 81840
m e m o r y 2 all data sheets are subject to change without notice ?2021 maxwell technologies all rights reserved. 128 channel multiplexer 81840 06.17.02 rev 5 81840 pinout diagram
m e m o r y 3 all data sheets are subject to change without notice ?2021 maxwell technologies all rights reserved. 128 channel multiplexer 81840 06.17.02 rev 5 t able 1. p inout d escription p in s ymbol d escription 1, 23, 42, 64, 65, 81, 112, 128, 129, 151, 171, 192, 193, 213, 236, 256 gnd 2-9, 13-16, 18-21, 24-31, 34-41, 44-47, 49-52, 56-63, 66-73, 77-80, 82-85, 87-90, 92-95, 98- 101, 103-106, 108-111, 113-116, 120-127, 130- 137, 141-144, 146-149, 152-159, 162-169, ain1 - 128 10, 22, 32, 33, 43, 55 clp1 - 6 11, 54, 75, 96, 97, 107, 117, 118, 138, 139, 150, 160, 161, 170, 182, 203, 214, 223, 228, 233, 240, 244, 249 nc 12, 53, 76, 117, 140, 181, 204, 245 +15v 17, 48, 91, 102, 145, 176, 215, 234 -15v 172-175, 177-180 sp1in1 - 8 184-191 sp2in1 - 8 194-201 grin1 - 8 183, 202, 250 +5v 206-212 casin1 - 7 216 h1en 217 bypass 218 sp2en 224 sp1en 222-219 ha0 - 3 227-225 sp2a0 - 2 229 casen 233-230 sp1a0 - 2 235 l1en 239-237 casa0 - 2 243-241 la0 - 2 248-246 gra0 - 2 252 sp1out 251 sp2out 253 negative 254 positive 255 gren
m e m o r y 4 all data sheets are subject to change without notice ?2021 maxwell technologies all rights reserved. 128 channel multiplexer 81840 06.17.02 rev 5 t able 2. 81840 a bsolute m aximum r atings 1 , 2 , 3 , 4 1. the lmux mcm is designed to operate with power supply voltages ranging from 5.2v to 20vdc. 2. the maximum voltage each input ain(128:1) may see without damage is +35v to -35v with respect to ground. 3. stresses above the absolute maximum rating may cause permanent damage to the device. extended operation at the maximum levels may degrade per- formance and affect reliability. 4. t a = 25c unless otherwise specified. e nvironment r anges v+ to ground 20v v- to ground -20v input overvoltage, ain(1) to ain(128) 35v to-35v (power on or off) input overvoltage, logic inputs 4v over v ref and -4v below grd power dissipation 500mw maximum storage temperature -65 to 150c operating temperature -55 to 125c t able 3. 81840 ac e lectrical c haracteristics p arameter t est c onditions s ubgroups t est l imits u nits t a = 25c t a = 125c t a = -55 c m in m ax m in m ax m in m ax address input to i/o channels prop. delay t on(a) t off(a) v in = 5.0v r l = 5k c l = 50pf 9, 10, 11 -- -- 1500 1500 -- -- 1500 1500 -- -- 1500 1500 nsec enable to i/o t on(en) t off(en) v in = 5.0v r l = 5k c l = 50 pf 9, 10, 11 -- -- 1500 1500 -- -- 1500 1500 -- -- 1500 1500 nsec on channel isolation v iso(on) all enable = 0.8v v in = 3v rms @ 500khz 1 1. controlled by design, not directly tested. 4, 5, 6 45 -- 45 -- 45 -- db off channel isolation v iso(off) all enable = 4.0v v in = 3v rms @ 500khz 1 4, 5, 6 45 -- 45 -- 45 -- db
m e m o r y 5 all data sheets are subject to change without notice ?2021 maxwell technologies all rights reserved. 128 channel multiplexer 81840 06.17.02 rev 5 t able 4. d elta l imits p arameter v ariation i s+ 10% i s- 10% i sb+ 10% i sb- 10% t able 5. 81840 e lectrical t est t able p arameter t est c onditions s ubgroups t est l imits u nits t a = 25c t a = 125c t a =-55c m in m ax m in m ax m in m ax analog signal range, v 0 -15 15 -15 15 -15 15 v bypass output, on-resis- tance, 5v, r bp(on) v in = 5v i out = -1.0ma 1, 2, 3 2.0 6.0 2.0 6.0 2.0 6.0 k ? positive output, on-resis- tance, 5v, r po(on) v in = 5v i out = -1.0ma 1, 2, 3 3.0 9.0 3.0 9.0 3.0 9.0 k ? negative or spare output, on- resistance, 5v, r ns(on) v in = 5v i out = -1.0ma 1, 2, 3 1.0 3.0 1.0 3.0 1.0 3.0 k ? bypass output, on-resis- tance, -5v, r bp(on) v in = -5v i out = 1.0ma 1, 2, 3 2.0 6.0 2.0 6.0 2.0 6.0 k ? positive output, on-resis- tance, -5v, r po(on) v in = -5v i out = 1.0ma 1, 2, 3 3.0 9.0 3.0 9.0 3.0 9.0 k ? negative or spare output, on- resistance, -5v, r ns(on) v in = -5v i out = 1.0ma 1, 2, 3 1.0 3.0 1.0 4.0 1.0 4.0 k ? input leakage current, la0, la1, la2, ha0, lien, address or enable pins, i ah , i al all unused pins = ground 1, 2, 3 -100 100 -200 200 -200 200 na input leakage current, all other address or enable pins i ah, i al all unused pins = ground 1, 2, 3 -100 100 -200 200 -200 200 na leakage current into mux input channels, ainxx, grinx, sp1inx, sp2inx, casinx, +i s(off) v in = 10v, all enables = 4.0v all unused inputs & outouts = -10v 1, 2, 3 -20 20 -100 100 -100 100 na leakage current into mux input channels, ainxx, grinx, sp1inx, sp2inx, casinx, - i s(off) v in = -10v all enables = 4.0v all unused inputs & outputs = +10v 1, 2, 3 -20 20 -100 100 -100 100 na
m e m o r y 6 all data sheets are subject to change without notice ?2021 maxwell technologies all rights reserved. 128 channel multiplexer 81840 06.17.02 rev 5 leakage current into mux input channels, ainxx, grinx, sp1inx, sp2inx, casinx, power off, +i s(off)po vin = 25v v s +, v s -, v ref , v a , v en & all unused inputs = ground 1, 2, 3 -50 50 -100 100 -100 100 na leakage current into mux input channels, ainxx, grinx, sp1inx, sp2inx, casinx, positive overvoltage, +i s(off)0v 1 vin = 35v, clpx, sp1out, sp2out, bypass, positive, negative = 0.0v all enables = 4.0v all unused = gnd 1, 2, 3 -100 100 -200 200 -200 200 na leakage current into mux input channels, ainxx, grinx, sp1inx, sp2inx, casinx, negative overvoltage, - i s(off)0v 1 v in = -35v, clpx, sp1out, sp2out, bypass, positive, negative =0.0v all enables = 4.0v all unused = gnd 1, 2, 3 -100 100 -200 200 -200 200 na leakage current into mux output channels, sp1out, sp2out, positive, nega- tive, positive overvoltage, +i d(off)0v 1 v in = 35v, clpx, sp1out, sp2out, bypass, positive, negative = 0.0v all enables = 4.0v all unused = gnd 1, 2, 3 -75 75 -200 200 -200 200 na leakage current into mux output channels, clpx, bypass, +i d(off)0v 1 v in = 35v, clpx, sp1out, sp2out, bypass, positive, negative = 0.0v all enables = 4.0v all unused = gnd 1, 2, 3 -100 100 -400 400 -400 400 na leakage current into mux output channels, sp1out, sp2out, positive, nega- tive, negative overvoltage, - i d(off)0v 1 v in = -35v, clpx, sp1out, sp2out, bypass, positive, negative = -10v all enables = 4.0v all unused = 0.0v 1, 2, 3 -75 75 -200 200 -200 200 na leakage current into mux output channels, clpx, bypass, -i d(off)0v 1 v in = -35v, clpx, sp1out, sp2out, bypass, positive, negative = -10v all enables = 4.0v all unused = 0.0v 1, 2, 3 -100 100 -400 400 -400 400 na t able 5. 81840 e lectrical t est t able p arameter t est c onditions s ubgroups t est l imits u nits t a = 25c t a = 125c t a =-55c m in m ax m in m ax m in m ax
m e m o r y 7 all data sheets are subject to change without notice ?2021 maxwell technologies all rights reserved. 128 channel multiplexer 81840 06.17.02 rev 5 leakage current into off mux output channels, clpx, sp1out, sp2out, bypass, positive, negative, +i d(off) all v in = 10v, clpx, sp1out, sp2out, bypass, positive negative = 10v all enables = 0.8v all unused = 0.0v 1, 2, 3 -20 20 -100 100 -100 100 na leakage current into off mux output channels, clpx, sp1out, sp2out, bypass, positive, negative, -i d(off) all v in = -10v, clpx, sp1out, sp2out, bypass, positive, negative = 10v all enables = 0.8v all unused = 0.0v 1, 2, 3 -20 20 -100 100 -100 100 na leakage current into on mux output channels, clpx, sp1out, sp2out, bypass, positive, negative, -i d(on) note: sequence all inputs for each output. output and input under test = 10v all unused v in = 10v all enables = 0.8v 1, 2, 3 -20 20 -100 100 -100 100 na leakage current into on mux output channels, clpx, sp1out, sp2out, bypass, positive, negative, i d(on) note: sequence all inputs for each output output and input under test = -10v all unused v in = -10v all enables = 0.8v 1, 2, 3 -20 20 -100 100 -100 100 na v ref 1, 2, 3 4.5 7.0 4.5 7.0 4.5 7.0 v input voltage low v il 2 v in = 5.0v 1, 2, 3 -- 0.3 v ref -- 0.3 v ref -- 0.3 v ref v input voltage high v ih 2 v in = 5.0v 1, 2, 3 0.7 v ref -- 0.7 v ref -- 0.7 v ref -- v supply current for i s+ i s- all enables = 0.8v 1, 2, 3 0.65 -0.65 6.5 -6.5 0.65 -0.65 6.5 -6.5 0.65 -0.65 6.5 -6.5 ma standby supply current for i sb+ i sb- all enables = 0.8v 1, 2, 3 0.65 -0.65 6.5 6.5 0.65 -0.65 6.5 -6.5 0.65 -0.65 6.5 -6.5 ma 1. current limit set to 10 a during test. t able 5. 81840 e lectrical t est t able p arameter t est c onditions s ubgroups t est l imits u nits t a = 25c t a = 125c t a =-55c m in m ax m in m ax m in m ax
m e m o r y 8 all data sheets are subject to change without notice ?2021 maxwell technologies all rights reserved. 128 channel multiplexer 81840 06.17.02 rev 5 2. for v ih and v il measurements, v ref will equal 4.5v and 5.5v. 3. unless otherwise specified: - v- = -15.0v - v+ = 15.0v - v ref = 5.0v - v ah = 4.0v - v al = 0.8v
m e m o r y 9 all data sheets are subject to change without notice ?2021 maxwell technologies all rights reserved. 128 channel multiplexer 81840 06.17.02 rev 5 f igure 1. 81840 a ddress d ecoding s cheme address inputs la (0,4) telemetry channel 0 0 0 0 0 0 0 ain(1) 0 0 0 0 0 0 1 ain(2) 0 0 0 0 0 1 0 ain(3) 0 0 0 0 0 1 1 ain(4) 0 0 0 0 1 0 0 ain(5) 0 0 0 0 1 0 1 ain(6) 0 0 0 0 1 1 0 ain(7) 0 0 0 0 1 1 1 ain(8) 0 0 0 1 0 0 0 ain(9) " " " 1 1 1 0 1 1 1 ain(121) 1 1 1 1 0 0 1 ain(122) 1 1 1 1 0 1 0 ain(123) 1 1 1 1 0 1 1 ain(124) 1 1 1 1 1 0 0 ain(125) 1 1 1 1 1 0 1 ain(126) 1 1 1 1 1 1 0 ain(127) 1 1 1 1 1 1 1 ain(128)
m e m o r y 10 all data sheets are subject to change without notice ?2021 maxwell technologies all rights reserved. 128 channel multiplexer 81840 06.17.02 rev 5 q256-01 all dimensions in inches 256-p in r ad -p ak ? q uad f lat p ackage s ymbol d imensions m in n om m ax a .302 .329 .356 b .005 .007 .009 c .005 .006 .007 d 1.438 1.450sq 1.462 d1 1.260bsc e .020bsc l 3.010 3.040 3.070 l1 2.970 3.000 3.030 l2 2.178 2.200 2.222 a1 .253 .275 .297 n 256 f1 1.215 1.220 1.225 f4 1.215 1.220 1.225
m e m o r y 11 all data sheets are subject to change without notice ?2021 maxwell technologies all rights reserved. 128 channel multiplexer 81840 06.17.02 rev 5 important notice: these data sheets are created using the chip manufacturer?s published specifications. maxwell technologies verifies functionality by testing key parameters either by 100% testing, sample testing or characterization. the specifications presented within these data sheets represent the latest and most accurate information available to date. however, these specifications are subject to change without notice and maxwell technologies assumes no responsibility for the use of this information. maxwell technologies? products are not authorized for use as critical components in life support devices or systems without express written approval from maxwell technologies. any claim against maxwell technologies must be made within 90 days from the date of shipment from maxwell tech- nologies. maxwell technologies? liability shall be limited to replacement of defective parts.

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