sn54f258, sn74f258 quadruple 2-line to 1-line data selectors/multiplexers with 3-state outputs sdfs067a ? d2932, march 1987 ? revised october 1993 copyright ? 1993, texas instruments incorporated 2?1 post office box 655303 ? dallas, texas 75265 ? 3-state outputs interface directly with system bus ? provides bus interface from multiple sources in high-performance systems ? package options include plastic small-outline packages, ceramic chip carriers, and standard plastic and ceramic 300-mil dips description the f258 is designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. the 3-state outputs will not load the data lines when the output-enable (oe ) input is at a high logic level. the sn54f258 is characterized for operation over the full military temperature range of ? 55 c to 125 c. the sn74f258 is characterized for operation from 0 c to 70 c. function table inputs output oe a /b a b output y h x x x z l llx h l lhx l l hxl h l h x h l logic symbol ? oe mux 2 1a 1 3 1b en 15 g1 1 1y 4 5 2a 6 2b 2y 7 11 3a 10 3b 3y 9 14 4a 13 4b 4y 12 a /b 1 ? this symbol is in accordance with ansi/ieee std 91-1984 and iec publication 617-12. pin numbers shown are for the d, j, and n packages. sn54f258 ...j p ackage sn74f258 ...d or n p ackage (top view) 3212019 910111213 4 5 6 7 8 18 17 16 15 14 4a 4b nc 4y 3a 1b 1y nc 2a 2b sn54f258 . . . fk package (top view) 1a a/b nc 3y 3b oe 2y gnd nc nc ? no internal connection v cc 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 a /b 1a 1b 1y 2a 2b 2y gnd v cc oe 4a 4b 4y 3a 3b 3y production data information is current as of publication date. products conform to specifications per the terms of texas instruments standard warranty. production processing does not necessarily include testing of all parameters.
sn54f258, sn74f258 quadruple 2-line to 1-line data selectors/multiplexers with 3-state outputs sdfs067a ? d2932, march 1987 ? revised october 1993 2?2 post office box 655303 ? dallas, texas 75265 logic diagram (positive logic) 4y 3y 2y 1y a /b oe 4b 4a 3b 3a 2b 2a 1b 1a 4 2 3 7 5 6 9 11 10 12 14 13 1 15 pin numbers shown are for the d, j, and n packages. absolute maximum ratings over operating free-air temperature range (unless otherwise noted) ? supply voltage range, v cc ?0.5 v to 7 v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . input voltage range (see note 1) ?1.2 v to 7 v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . input current range ?30 ma to 5 ma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . voltage range applied to any output in the disabled or power-off state ?0.5 v to 5.5 v . . . . . . . . . . . . . . . . . . . voltage range applied to any output in the high state ?0.5 v to v cc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . current into any output in the low state: sn54f258 40 ma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . sn74f258 48 ma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . operating free-air temperature range: sn54f258 ?55 c to 125 c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . sn74f258 0 c to 70 c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . storage temperature range ?65 c to 150 c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ? stresses beyond those listed under ?absolute maximum ratings? may cause permanent damage to the device. these are stress ratings only an d functional operation of the device at these or any other conditions beyond those indicated under ?recommended operating conditi ons? is not implied. exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. note 1: the input voltage ratings may be exceeded provided the input current ratings are observed.
sn54f258, sn74f258 quadruple 2-line to 1-line data selectors/multiplexers with 3-state outputs sdfs067a ? d2932, march 1987 ? revised october 1993 2?3 post office box 655303 ? dallas, texas 75265 recommended operating conditions sn54f258 sn74f258 unit min nom max min nom max unit v cc supply voltage 4.5 5 5.5 4.5 5 5.5 v v ih high-level input voltage 2 2 v v il low-level input voltage 0.8 0.8 v i ik input clamp current ?18 ?18 ma i oh high-level output current ?3 ?3 ma i ol low-level output current 20 24 ma t a operating free-air temperature ?55 125 0 70 c electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) parameter test conditions sn54f258 sn74f258 unit parameter test conditions min typ ? max min typ ? max unit v ik v cc = 4.5 v, i i = ? 18 ma ?1.2 ?1.2 v v 45v i oh = ? 1 ma 2.5 3.4 2.5 3.4 v oh v cc = 4.5 v i oh = ? 3 ma 2.4 3.3 2.4 3.3 v v cc = 4.75 v, i oh = ? 1 ma to ? 3 ma 2.7 v v 45v i ol = 20 ma 0.3 0.5 v v ol v cc = 4.5 v i ol = 24 ma 0.35 0.5 v i ozh v cc = 5.5 v, v o = 2.7 v 50 50 a i ozl v cc = 5.5 v, v o = 0.5 v ?50 ?50 a i i v cc = 5.5 v, v i = 7 v 0.1 0.1 ma i ih v cc = 5.5 v, v i = 2.7 v 20 20 a i il v cc = 5.5 v, v i = 0.5 v ? 0.6 ? 0.6 ma i os ? v cc = 5.5 v, v o = 0 ?60 ?150 ?60 ?150 ma i cch v 55v condition a 6.2 9.5 6.2 9.5 i ccl v cc = 5.5 v, see note 2 condition b 15.1 23 15.1 23 ma i ccz s ee n o t e 2 condition c 11.3 17 11.3 17 ? all typical values are at v cc = 5 v, t a = 25 c. ? not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second. note 2: i cc is measured with the outputs open under the following conditions: a. all b inputs at 4.5 v, other inputs grounded b. a /b and all b inputs at 4.5 v, other inputs grounded c. oe and all b inputs at 4.5 v, other inputs grounded
sn54f258, sn74f258 quadruple 2-line to 1-line data selectors/multiplexers with 3-state outputs sdfs067a ? d2932, march 1987 ? revised october 1993 2?4 post office box 655303 ? dallas, texas 75265 switching characteristics (see note 3) parameter from (input) to (output) v cc = 5 v, c l = 50 pf, r1 = 500 , r2 = 500 , t a = 25 c v cc = 4.5 v to 5.5 v, c l = 50 pf, r1 = 500 , r2 = 500 , t a = min to max ? unit f258 sn54f258 sn74f258 min typ max min max min max t plh data any y 1 3.6 5.3 1 7.5 1 6 ns t phl data (a or b) any y 1 3.1 4.7 1 6 1 5.5 ns t plh a /b any y 3.2 6.1 8.5 3.2 12 3.2 9.5 ns t phl a /b any y 3.2 6.9 9.5 3.2 11.5 3.2 11 ns t pzh g any y 2.2 5.5 7.5 2.2 11 2.2 8.5 ns t pzl g any y 2.2 5.1 7.5 2.2 9.5 2.2 8.5 ns t phz g any y 1.2 3.9 6 1 7 1.2 7 ns t plz g any y 1.2 4.1 6 1.2 9 1.2 7 ns ? for conditions shown as min or max, use the appropriate value specified under recommended operating conditions. note 3: load circuits and waveforms are shown in section 1.
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