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scls224b ? dec ember 1982 ? revised september 2003 1 post office box 655303 ? dallas, texas 75265 wide operating voltage range of 2 v to 6 v high-current inverting outputs drive up to 15 lsttl loads low power consumption, 80- a max i cc ?hc257 ...t ypical t pd = 9 ns ?hc258 ...t ypical t pd = 12 ns 6-ma output drive at 5 v low input current of 1 a max provides bus interface from multiple sources in high-performance systems 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 g 4a 4b 4y 3a 3b 3y sn54hc257, sn54hc25 8...j p ackage sn74hc257, sn74hc25 8...d, n, ns, or pw package (top view) 3212019 910111213 4 5 6 7 8 18 17 16 15 14 4a 4b nc 4y 3a sn54hc257, sn54hc25 8...fk p ackage (top view) 1a a/b nc 3y 3b v g 2y gnd nc cc nc ? no internal connection 1b 1y nc 2a 2b description/ordering information ordering information t a package ? orderable part number top-side marking pdip ? n tube of 25 sn74hc257n sn74hc257n pdip ? n tube of 25 sn74hc258n sn74hc258n tube of 40 sn74hc257d reel of 2500 sn74hc257dr hc257 soic ? d reel of 250 sn74hc257dt hc257 soic ? d tube of 40 sn74hc258d hc258 reel of 2500 sn74hc258dr hc258 ?40 c to 85 c sop ? ns reel of 2000 sn74hc257nsr hc257 ?40 c to 85 c sop ? ns reel of 2000 sn74hc258nsr hc258 tube of 90 sn74hc257pw reel of 2000 sn74hc257pwr hc257 tssop ? pw reel of 250 sn74hc257pwt hc257 tssop ? pw tube of 90 sn74hc258pw reel of 2000 sn74hc258pwr hc258 reel of 250 sn74hc258pwt hc258 cdip ? j tube of 25 snj54hc257j snj54hc257j ?55 c to 125 c cdip ? j tube of 25 snj54hc258j snj54hc258j ?55 c to 125 c lccc ? fk tube of 55 snj54hc257fk snj54hc257fk lccc ? fk tube of 55 snj54hc258fk snj54hc258fk ? package drawings, standard packing quantities, thermal data, symbolization, and pcb design guidelines are available at www.ti.com/sc/package. copyright ? 2003, texas instruments incorporated please be aware that an important notice concerning avail ability, standard warranty, and use in critical applications of texas instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
scls224b ? december 1982 ? revised september 2003 2 post office box 655303 ? dallas, texas 75265 description/ordering information (continued) these devices are designed to multiplex signals from 4-bit data sources to 4-output data lines in bus-organized systems. the 3-state outputs do not load the data lines when the output-enable (g ) input is at a high logic level. to ensure the high-impedance state during power up or power down, g should be tied to v cc through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. function table inputs output y g a /b a b ?hc257 ?hc258 h x x x z z l llx l h l lhx h l l hxl l h l h x h h l ?hc257 logic diagram (positive logic) 4y 3y 2y 1y a /b g 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, n, ns, and pw packages.
scls224b ? dec ember 1982 ? revised september 2003 3 post office box 655303 ? dallas, texas 75265 ?hc258 logic diagram (positive logic) 4y 3y 2y 1y a /b g 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, n, ns, and pw 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 clamp current, i ik (v i < 0 or v i > v cc ) 20 ma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . output clamp current, i ok (v o < 0 or v o > v cc ) 20 ma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . continuous output current, i o (v o = 0 to v cc ) 35 ma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . continuous current through v cc or gnd 70 ma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . package thermal impedance, ja (see note 1): d package 73 c/w . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . n package 67 c/w . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ns package 64 c/w . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pw package 108 c/w . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . storage temperature range, t stg ?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, a nd 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 package thermal impedance is calculated in accordance with jesd 51-7.
scls224b ? december 1982 ? revised september 2003 4 post office box 655303 ? dallas, texas 75265 recommended operating conditions (see note 2) sn54hc257, sn54hc258 sn74hc257, sn74hc258 unit min nom max min nom max unit v cc supply voltage 2 5 6 2 5 6 v v cc = 2 v 1.5 1.5 v ih high-level input voltage v cc = 4.5 v 3.15 3.15 v v ih high-level input voltage v cc = 6 v 4.2 4.2 v v cc = 2 v 0.3 0.5 v il low-level input voltage v cc = 4.5 v 0.9 1.35 v v il low-level input voltage v cc = 6 v 1.2 1.8 v v i input voltage 0 v cc 0 v cc v v o output voltage 0 v cc 0 v cc v v cc = 2 v 1000 1000 ? t/ ? v input transition rise/fall time v cc = 4.5 v 500 500 ns ? t/ ? v input transition rise/fall time v cc = 6 v 400 400 ns t a operating free-air temperature ?55 125 ?40 85 c note 2: all unused inputs of the device must be held at v cc or gnd to ensure proper device operation. refer to the ti application report, implications of slow or floating cmos inputs , literature number scba004. electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) parameter test conditions v cc t a = 25 c sn54hc257, sn54hc258 sn74hc257, sn74hc258 unit parameter test conditions v cc min typ max min max min max unit 2 v 1.9 1.998 1.9 1.9 i oh = ?20 a 4.5 v 4.4 4.499 4.4 4.4 v oh v i = v ih or v il i oh = ?20 a 6 v 5.9 5.999 5.9 5.9 v v oh v i = v ih or v il i oh = ?6 ma 4.5 v 3.98 4.3 3.7 3.84 v i oh = ?7.8 ma 6 v 5.48 5.8 5.2 5.34 2 v 0.002 0.1 0.1 0.1 i ol = 20 a 4.5 v 0.001 0.1 0.1 0.1 v ol v i = v ih or v il i ol = 20 a 6 v 0.001 0.1 0.1 0.1 v v ol v i = v ih or v il i ol = 6 ma 4.5 v 0.17 0.26 0.4 0.33 v i ol = 7.8 ma 6 v 0.15 0.26 0.4 0.33 i i v i = v cc or 0 6 v 0.1 100 1000 1000 na i oz v o = v cc or 0 6 v 0.01 0.5 10 5 a i cc v i = v cc or 0, i o = 0 6 v 8 160 80 a c i 2 v to 6 v 3 10 10 10 pf
scls224b ? dec ember 1982 ? revised september 2003 5 post office box 655303 ? dallas, texas 75265 switching characteristics over recommended operating free-air temperature range, c l = 50 pf (unless otherwise noted) (see figure 1) parameter from to v cc t a = 25 c sn54hc257 sn74hc257 unit parameter from (input) to (output) v cc min typ max min max min max unit 2 v 50 100 150 125 a or b any y 4.5 v 10 20 30 25 t pd a or b any y 6 v 9 17 25 21 ns t pd 2 v 50 100 150 125 ns a /b any y 4.5 v 10 20 30 25 a/b any y 6 v 9 17 25 21 2 v 75 150 225 190 t en g any y 4.5 v 15 30 45 38 ns t en g any y 6 v 13 26 38 32 ns 2 v 75 150 225 190 t dis g any y 4.5 v 15 30 45 38 ns t dis g any y 6 v 13 26 38 32 ns 2 v 28 60 90 75 t t any y 4.5 v 8 12 18 15 ns t t any y 6 v 6 10 15 13 ns switching characteristics over recommended operating free-air temperature range, c l = 150 pf (unless otherwise noted) (see figure 1) parameter from to v cc t a = 25 c sn54hc257 sn74hc257 unit parameter from (input) to (output) v cc min typ max min max min max unit 2 v 75 150 245 190 a or b any y 4.5 v 15 30 45 38 t pd a or b any y 6 v 13 26 38 32 ns t pd 2 v 75 150 245 190 ns a /b any y 4.5 v 15 30 45 38 a/b any y 6 v 13 26 38 32 2 v 100 200 300 250 t en g any y 4.5 v 24 40 60 50 ns t en g any y 6 v 18 34 51 43 ns 2 v 45 210 315 265 t t any y 4.5 v 17 42 63 53 ns t t any y 6 v 13 36 53 45 ns
scls224b ? december 1982 ? revised september 2003 6 post office box 655303 ? dallas, texas 75265 switching characteristics over recommended operating free-air temperature range, c l = 50 pf (unless otherwise noted) (see figure 1) parameter from to v cc t a = 25 c sn54hc258 sn74hc258 unit parameter from (input) to (output) v cc min typ max min max min max unit 2 v 60 100 150 125 a or b any y 4.5 v 13 20 30 25 t pd a or b any y 6 v 12 17 25 21 ns t pd 2 v 60 115 175 145 ns a /b any y 4.5 v 13 23 35 29 a/b any y 6 v 12 20 30 25 2 v 70 150 225 190 t en g any y 4.5 v 15 30 45 38 ns t en g any y 6 v 13 26 38 32 ns 2 v 75 150 225 190 t dis g any y 4.5 v 15 30 45 38 ns t dis g any y 6 v 13 26 38 32 ns 2 v 28 60 90 75 t t any y 4.5 v 8 12 18 15 ns t t any y 6 v 6 10 15 13 ns switching characteristics over recommended operating free-air temperature range, c l = 150 pf (unless otherwise noted) (see figure 1) parameter from to v cc t a = 25 c sn54hc258 sn74hc258 unit parameter from (input) to (output) v cc min typ max min max min max unit 2 v 95 150 245 190 a or b any y 4.5 v 23 30 45 38 t pd a or b any y 6 v 21 26 38 32 ns t pd 2 v 95 165 240 210 ns a /b any y 4.5 v 23 33 48 42 a/b any y 6 v 21 28 41 36 2 v 100 200 300 250 t en g any y 4.5 v 24 40 60 50 ns t en g any y 6 v 18 34 51 43 ns 2 v 45 210 315 265 t t any y 4.5 v 17 42 63 53 ns t t any y 6 v 13 36 53 45 ns operating characteristics, t a = 25 c parameter test conditions typ unit c pd power dissipation capacitance per multiplexer no load 40 pf
scls224b ? dec ember 1982 ? revised september 2003 7 post office box 655303 ? dallas, texas 75265 parameter measurement information voltage waveform input rise and fall times 50% 50% 10% 10% 90% 90% v cc 0 v t r t f input voltage waveforms propagation delay and output transition times 50% 50% 50% 10% 10% 90% 90% v cc v oh v ol 0 v t r t f input in-phase output 50% t plh t phl 50% 50% 10% 10% 90% 90% v oh v ol t r t f t phl t plh out-of-phase output 50% 10% 90% v cc v cc v ol 0 v output control (low-level enabling) output waveform 1 (see note b) 50% t pzl t plz voltage waveforms enable and disable times for 3-state outputs v oh 0 v 50% 50% t pzh t phz output waveform 2 (see note b) v cc test point from output under test c l (see note a) r l v cc s1 s2 load circuit parameter c l t pzh t pd or t t t dis t en t pzl t phz t plz 1 k ? 1 k ? 50 pf or 150 pf 50 pf open closed r l s1 closed open s2 open closed closed open 50 pf or 150 pf open open ?? notes: a. c l includes probe and test-fixture capacitance. b. waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. c. phase relationships between waveforms were chosen arbitrarily. all input pulses are supplied by generators having the followi ng characteristics: prr 1 mhz, z o = 50 ? , t r = 6 ns, t f = 6 ns. d. the outputs are measured one at a time with one input transition per measurement. e. t plz and t phz are the same as t dis . f. t pzl and t pzh are the same as t en . g. t plh and t phl are the same as t pd . figure 1. load circuit and voltage waveforms
packaging information orderable device status (1) package type package drawing pins package qty eco plan (2) lead/ball finish msl peak temp (3) 85124012a active lccc fk 20 1 tbd call ti level-nc-nc-nc 8512401ea active cdip j 16 1 tbd call ti level-nc-nc-nc sn54hc257j active cdip j 16 1 tbd call ti level-nc-nc-nc sn74hc257d active soic d 16 40 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc257de4 active soic d 16 40 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc257dr active soic d 16 2500 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc257dre4 active soic d 16 2500 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc257dt active soic d 16 250 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc257dte4 active soic d 16 250 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc257n active pdip n 16 25 pb-free (rohs) cu nipdau level-nc-nc-nc sn74hc257ne4 active pdip n 16 25 pb-free (rohs) cu nipdau level-nc-nc-nc sn74hc257nsr active so ns 16 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc257nsre4 active so ns 16 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc257pw active tssop pw 16 90 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc257pwe4 active tssop pw 16 90 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc257pwg4 active tssop pw 16 90 green (rohs & no sb/br) cu nipdau level-1-260c-unlim SN74HC257PWLE obsolete tssop pw 16 tbd call ti call ti sn74hc257pwr active tssop pw 16 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc257pwre4 active tssop pw 16 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc257pwrg4 active tssop pw 16 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc257pwt active tssop pw 16 250 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc257pwte4 active tssop pw 16 250 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc258d active soic d 16 40 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc258de4 active soic d 16 40 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc258dr active soic d 16 2500 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc258dre4 active soic d 16 2500 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc258dt active soic d 16 250 green (rohs & cu nipdau level-1-260c-unlim package option addendum www.ti.com 5-dec-2005 addendum-page 1
orderable device status (1) package type package drawing pins package qty eco plan (2) lead/ball finish msl peak temp (3) no sb/br) sn74hc258dte4 active soic d 16 250 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc258n active pdip n 16 25 pb-free (rohs) cu nipdau level-nc-nc-nc sn74hc258ne4 active pdip n 16 25 pb-free (rohs) cu nipdau level-nc-nc-nc sn74hc258nsr active so ns 16 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc258nsre4 active so ns 16 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc258pw active tssop pw 16 90 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc258pwe4 active tssop pw 16 90 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc258pwr active tssop pw 16 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc258pwre4 active tssop pw 16 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc258pwt active tssop pw 16 250 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74hc258pwte4 active tssop pw 16 250 green (rohs & no sb/br) cu nipdau level-1-260c-unlim snj54hc257fk active lccc fk 20 1 tbd call ti level-nc-nc-nc snj54hc257j active cdip j 16 1 tbd call ti level-nc-nc-nc (1) the marketing status values are defined as follows: active: product device recommended for new designs. lifebuy: ti has announced that the device will be discontinued, and a lifetime-buy period is in effect. nrnd: not recommended for new designs. device is in production to support existing customers, but ti does not recommend using this part in a new design. preview: device has been announced but is not in production. samples may or may not be available. obsolete: ti has discontinued the production of the device. (2) eco plan - the planned eco-friendly classification: pb-free (rohs) or green (rohs & no sb/br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. tbd: the pb-free/green conversion plan has not been defined. pb-free (rohs): ti's terms "lead-free" or "pb-free" mean semiconductor products that are compatible with the current rohs requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. where designed to be soldered at high temperatures, ti pb-free products are suitable for use in specified lead-free processes. green (rohs & no sb/br): ti defines "green" to mean pb-free (rohs compatible), and free of bromine (br) and antimony (sb) based flame retardants (br or sb do not exceed 0.1% by weight in homogeneous material) (3) msl, peak temp. -- the moisture sensitivity level rating according to the jedec industry standard classifications, and peak solder temperature. important information and disclaimer: the information provided on this page represents ti's knowledge and belief as of the date that it is provided. ti bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. efforts are underway to better integrate information from third parties. ti has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. ti and ti suppliers consider certain information to be proprietary, and thus cas numbers and other limited information may not be available for release. in no event shall ti's liability arising out of such information exceed the total purchase price of the ti part(s) at issue in this document sold by ti to customer on an annual basis. package option addendum www.ti.com 5-dec-2005 addendum-page 2

mechanical data mlcc006b october 1996 post office box 655303 ? dallas, texas 75265 fk (s-cqcc-n**) leadless ceramic chip carrier 4040140 / d 10/96 28 terminal shown b 0.358 (9,09) max (11,63) 0.560 (14,22) 0.560 0.458 0.858 (21,8) 1.063 (27,0) (14,22) a no. of min max 0.358 0.660 0.761 0.458 0.342 (8,69) min (11,23) (16,26) 0.640 0.739 0.442 (9,09) (11,63) (16,76) 0.962 1.165 (23,83) 0.938 (28,99) 1.141 (24,43) (29,59) (19,32) (18,78) ** 20 28 52 44 68 84 0.020 (0,51) terminals 0.080 (2,03) 0.064 (1,63) (7,80) 0.307 (10,31) 0.406 (12,58) 0.495 (12,58) 0.495 (21,6) 0.850 (26,6) 1.047 0.045 (1,14) 0.045 (1,14) 0.035 (0,89) 0.035 (0,89) 0.010 (0,25) 12 13 14 15 16 18 17 11 10 8 9 7 5 4 3 2 0.020 (0,51) 0.010 (0,25) 6 1 28 26 27 19 21 b sq a sq 22 23 24 25 20 0.055 (1,40) 0.045 (1,14) 0.028 (0,71) 0.022 (0,54) 0.050 (1,27) notes: a. all linear dimensions are in inches (millimeters). b. this drawing is subject to change without notice. c. this package can be hermetically sealed with a metal lid. d. the terminals are gold plated. e. falls within jedec ms-004

mechanical data mtss001c january 1995 revised february 1999 post office box 655303 ? dallas, texas 75265 pw (r-pdso-g**) plastic small-outline package 14 pins shown 0,65 m 0,10 0,10 0,25 0,50 0,75 0,15 nom gage plane 28 9,80 9,60 24 7,90 7,70 20 16 6,60 6,40 4040064/f 01/97 0,30 6,60 6,20 8 0,19 4,30 4,50 7 0,15 14 a 1 1,20 max 14 5,10 4,90 8 3,10 2,90 a max a min dim pins ** 0,05 4,90 5,10 seating plane 0 8 notes: a. all linear dimensions are in millimeters. b. this drawing is subject to change without notice. c. body dimensions do not include mold flash or protrusion not to exceed 0,15. d. falls within jedec mo-153
important notice texas instruments incorporated and its subsidiaries (ti) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. all products are sold subject to ti?s terms and conditions of sale supplied at the time of order acknowledgment. ti warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with ti?s standard warranty. testing and other quality control techniques are used to the extent ti deems necessary to support this warranty. except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. ti assumes no liability for applications assistance or customer product design. customers are responsible for their products and applications using ti components. to minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards. ti does not warrant or represent that any license, either express or implied, is granted under any ti patent right, copyright, mask work right, or other ti intellectual property right relating to any combination, machine, or process in which ti products or services are used. information published by ti regarding third-party products or services does not constitute a license from ti to use such products or services or a warranty or endorsement thereof. use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from ti under the patents or other intellectual property of ti. reproduction of information in ti data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. reproduction of this information with alteration is an unfair and deceptive business practice. ti is not responsible or liable for such altered documentation. resale of ti products or services with statements different from or beyond the parameters stated by ti for that product or service voids all express and any implied warranties for the associated ti product or service and is an unfair and deceptive business practice. ti is not responsible or liable for any such statements. following are urls where you can obtain information on other texas instruments products and application solutions: products applications amplifiers amplifier.ti.com audio www.ti.com/audio data converters dataconverter.ti.com automotive www.ti.com/automotive dsp dsp.ti.com broadband www.ti.com/broadband interface interface.ti.com digital control www.ti.com/digitalcontrol logic logic.ti.com military www.ti.com/military power mgmt power.ti.com optical networking www.ti.com/opticalnetwork microcontrollers microcontroller.ti.com security www.ti.com/security telephony www.ti.com/telephony video & imaging www.ti.com/video wireless www.ti.com/wireless mailing address: texas instruments post office box 655303 dallas, texas 75265 copyright ? 2005, texas instruments incorporated

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