description features differential d and q extended 100e v ee range of ?.2v to ?.5v vbb output for single-ended use 700ps max. propagation delay high frequency outputs separate and common select internal 75k ? input pulldown resistors available in 28-pin plcc package the sy10/100e457 are 3-bit differential 2:1 multiplexers. the fully differential data path makes the devices ideal for multiplexing low skew clock or other skew sensitive signals. multiple v bb pins are provided to ease ac coupling input signals. the higher frequency outputs provide the device with a >1.0ghz bandwidth to meet the needs of the most demanding system clock. both separate selects and a common select are provided to make the device well suited for both data path and random logic applications. triple differential 2:1 multiplexer sy10e457 sy100e457 final rev.: c amendment: /1 issue date: february, 1998 block diagram d 0a d 0a q 0 q 0 v bb d 0b d 0b 2:1 mux h l sel 0 d 1a d 1a q 1 q 1 d 1b d 1b 2:1 mux h l sel 1 d 2a d 2a q 2 q 2 d 2b d 2b 2:1 mux h l sel 2 comsel pin function d n [0:2], d n [0:2] differential data inputs sel individual select input comsel common select input v bb v bb reference output q[0:2], q[0:2] differential data outputs v cco v cc to output pin names pin configuration 18 17 16 15 14 13 12 567891011 26 27 28 1 2 3 4 top view plcc j28-1 25 24 23 22 21 20 19 v cc q 1 q 2 q 2 q 1 q 0 q 0 sel 1 d 1a v ee v bb d 1b d 1a d 1b sel 0 d 0b d 0a v bb v cco d 0a d 0b d 2b sel 2 d 2a d 2a v bb comsel d 2b 1
2 sy10e457 sy100e457 micrel dc electrical characteristics v ee = v ee (min.) to v ee (max.); v cc = v cco = gnd t a = 0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. unit condition v bb output reference voltage v 10e ?.38 ?.27 ?.35 ?.25 ?.31 ?.19 100e ?.38 ?.26 ?.38 ?.26 ?.38 ?.26 i ih input high current 150 150 150 a i ee power supply current ma 10e 92 110 92 110 92 110 100e 92 110 92 110 106 127 v pp ( dc) input sensitivity 50 50 50 mv 1 v cmr common mode range ?.5 0 ?.5 0 ?.5 0 v 2 notes: 1. differential input voltage required to obtain a full ecl swing on the outputs. 2. v cmr is referenced to the most positive side of the differential input signal. normal operation is obtained when the input signals are within the v cmr range and the input swing is greater than v pp (min.) and <1v. ac electrical characteristics v ee = v ee (min.) to v ee (max.); v cc = v cco = gnd t a = 0 ct a = +25 ct a = +85 c symbol parameter min. typ. max. min. typ. max. min. typ. max. unit condition t plh propagation delay to output ps t phl d (diff) 375 475 650 375 475 650 375 475 650 d 325 475 700 325 475 700 325 475 700 sel 350 500 725 350 500 725 350 500 725 comsel 375 525 750 375 525 750 375 525 750 t skew within-device skew 40 40 40 ps 1 t skew duty cycle skew t plh ? phl 10 10 10 ps 2 v pp (ac) minimum input swing 150 150 150 mv 3 t r rise/fall time 150 275 450 150 275 450 150 275 450 ps t f 20?0% notes: 1. within-device skew is defined as identical transitions on similar paths through a device. 2. duty cycle skew guarantee holds only for differential operation when the delays are measured from the cross point of the inpu ts to the cross point of the outputs. 3. minimum input swing for which ac parameters are guaranteed. product ordering code ordering package operating code type range sy10e457jc j28-1 commercial sy10e457jctr j28-1 commercial sy100e457jc j28-1 commercial sy100e457jctr j28-1 commercial
3 sy10e457 sy100e457 micrel 28 lead plcc (j28-1) rev. 03
4 sy10e457 sy100e457 micrel micrel-synergy 3250 scott boulevard santa clara ca 95054 usa tel + 1 (408) 980-9191 fax + 1 (408) 914-7878 web http://www.micrel.com this information is believed to be accurate and reliable, however no responsibility is assumed by micrel for its use nor for an y infringement of patents or other rights of third parties resulting from its use. no license is granted by implication or otherwise under any patent or pat ent right of micrel inc. ? 2000 micrel incorporated
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