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sn54ahct541, sn74ahct541 octal buffers/drivers with 3-state outputs scls269o ? december 1995 ? revised july 2003 1 post office box 655303 ? dallas, texas 75265 inputs are ttl-voltage compatible latch-up performance exceeds 250 ma per jesd 17 esd protection exceeds jesd 22 ? 2000-v human-body model (a114-a) ? 200-v machine model (a115-a) ? 1000-v charged-device model (c101) description/ordering information the ?ahct541 octal buffers/drivers are ideal for driving bus lines or buffer memory address registers. these devices feature inputs and outputs on opposite sides of the package to facilitate printed circuit board layout. the 3-state control gate is a 2-input and gate with active-low inputs so that if either output-enable (oe1 or oe2 ) input is high, all corresponding outputs are in the high-impedance state. the outputs provide noninverted data when they are not in the high-impedance state. to ensure the high-impedance state during power up or power down, oe 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. ordering information t a package ? orderable part number top-side marking pdip ? n tube sn74ahct541n sn74ahct541n soic dw tube sn74ahct541dw ahct541 soic ? dw tape and reel sn74ahct541dwr ahct541 40 cto85 c sop ? ns tape and reel sn74ahct541nsr ahct541 ? 40 c to 85 c ssop ? db tape and reel sn74ahct541dbr hb541 tssop pw tube sn74ahct541pw hb541 tssop ? pw tape and reel sn74ahct541pwr hb541 tvsop ? dgv tape and reel sn74ahct541dgvr hb541 cdip ? j tube snj54ahct541j snj54ahct541j ?55 c to 125 c cfp ? w tube snj54ahct541w snj54ahct541w lccc ? fk tube snj54ahct541fk snj54ahct541fk ? 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 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. please be aware that an important notice concerning availability, standard warranty, and use in critical applications of texas instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 oe1 a1 a2 a3 a4 a5 a6 a7 a8 gnd v cc oe2 y1 y2 y3 y4 y5 y6 y7 y8 sn54ahct541 ...j or w p ackage sn74ahct541 . . . db, dgv, dw, n, ns, or pw package (top view) 3212019 910111213 4 5 6 7 8 18 17 16 15 14 y1 y2 y3 y4 y5 a3 a4 a5 a6 a7 sn54ahct541 . . . fk package (top view) a2 a1 oe1 y7 y6 oe2 a8 gnd y8 v cc on products compliant to mil-prf-38535, all parameters are tested unless otherwise noted. on all other products, production processing does not necessarily include testing of all parameters.
sn54ahct541, sn74ahct541 octal buffers/drivers with 3-state outputs scls269o ? december 1995 ? revised july 2003 2 post office box 655303 ? dallas, texas 75265 function table (each buffer/driver) inputs output oe1 oe2 a y l l l l l lh h h xx z x h x z logic diagram (positive logic) oe1 oe2 to seven other channels a1 y1 1 19 218 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, v i (see note 1) ? 0.5 v to 7 v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . output voltage range, v o (see note 1) ? 0.5 v to v cc + 0.5 v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . input clamp current, i ik (v i < 0) ? 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 ) 25 ma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . continuous current through v cc or gnd 75 ma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . package thermal impedance, ja (see note 2): db package 70 c/w . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . dgv package 92 c/w . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . dw package 58 c/w . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . n package 69 c/w . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ns package 60 c/w . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pw package 83 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, and functional operation of the device at these or any other conditions beyond those indicated under ? recommended operating conditions ? is not implied. exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. notes: 1. the input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. the package thermal impedance is calculated in accordance with jesd 51-7.
sn54ahct541, sn74ahct541 octal buffers/drivers with 3-state outputs scls269o ? december 1995 ? revised july 2003 3 post office box 655303 ? dallas, texas 75265 recommended operating conditions (see note 3) sn54ahct541 sn74ahct541 unit min max min max unit v cc supply voltage 4.5 5.5 4.5 5.5 v v ih high-level input voltage 2 2 v v il low-level input voltage 0.8 0.8 v v i input voltage 0 5.5 0 5.5 v v o output voltage 0 v cc 0 v cc v i oh high-level output current ? 8 ? 8 ma i ol low-level output current 8 8 ma ? t/ ? v input transition rise or fall rate 20 20 ns/v t a operating free-air temperature ? 55 125 ? 40 85 c note 3: 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 sn54ahct541 sn74ahct541 unit parameter test conditions v cc min typ max min max min max unit v oh i oh = ? 50 a 45v 4.4 4.5 4.4 4.4 v v oh i oh = ? 8 ma 4 . 5 v 3.94 3.8 3.8 v v ol i ol = 50 a 45v 0.1 0.1 0.1 v v ol i ol = 8 ma 4 . 5 v 0.36 0.44 0.44 v i i v i = 5.5 v or gnd 0 v to 5.5 v 0.1 1* 1 a i oz v o = v cc or gnd 5.5 v 0.25 2.5 2.5 a i cc v i = v cc or gnd, i o = 0 5.5 v 4 40 40 a ? i cc ? one input at 3.4 v, other inputs at v cc or gnd 5.5 v 1.35 1.5 1.5 ma c i v i = v cc or gnd 5 v 2 10 10 pf c o v o = v cc or gnd 5 v 4 pf * on products compliant to mil-prf-38535, this parameter is not production tested at v cc = 0 v. ? this is the increase in supply current for each input at one of the specified ttl voltage levels, rather than 0 v or v cc .
sn54ahct541, sn74ahct541 octal buffers/drivers with 3-state outputs scls269o ? december 1995 ? revised july 2003 4 post office box 655303 ? dallas, texas 75265 switching characteristics over recommended operating free-air temperature range, v cc = 5 v 0.5 v (unless otherwise noted) (see figure 1) parameter from to load t a = 25 c sn54ahct541 sn74ahct541 unit parameter (input) (output) capacitance min typ max min max min max unit t plh a y c l =15 p f 4.1* 6* 1* 6.5* 1 6.5 ns t phl a y c l = 15 pf 3.7* 5.5* 1* 6.5* 1 6.5 ns t pzh oe y c l =15 p f 5* 7* 1* 8* 1 8 ns t pzl oe y c l = 15 pf 5* 7* 1* 8* 1 8 ns t phz oe y c l =15 p f 4.5* 7* 1* 8* 1 8 ns t plz oe y c l = 15 pf 4.5* 7* 1* 8* 1 8 ns t plh a y c l =50 p f 6.2 8.5 1 9.5 1 9.5 ns t phl a y c l = 50 pf 6 8.5 1 9.5 1 9.5 ns t pzh oe y c l =50 p f 7.5 10 1 12 1 12 ns t pzl oe y c l = 50 pf 7.5 10 1 12 1 12 ns t phz oe y c l =50 p f 7 10 1 12 1 12 ns t plz oe y c l = 50 pf 7 10 1 12 1 12 ns t sk(o) c l = 50 pf 1** 1 ns * on products compliant to mil-prf-38535, this parameter is not production tested. ** on products compliant to mil-prf-38535, this parameter does not apply. operating characteristics, v cc = 5 v, t a = 25 c parameter test conditions typ unit c pd power dissipation capacitance no load, f = 1 mhz 12 pf
sn54ahct541, sn74ahct541 octal buffers/drivers with 3-state outputs scls269o ? december 1995 ? revised july 2003 5 post office box 655303 ? dallas, texas 75265 parameter measurement information 50% v cc 3 v 3 v 0 v 0 v t h t su voltage waveforms setup and hold times data input t plh t phl t phl t plh v oh v oh v ol v ol 3 v 0 v 50% v cc 50% v cc input out-of-phase output in-phase output timing input 50% v cc voltage waveforms propagation delay times inverting and noninverting outputs output control output waveform 1 s1 at v cc (see note b) output waveform 2 s1 at gnd (see note b) v ol v oh t pzl t pzh t plz t phz v cc 0 v 50% v cc v ol + 0.3 v 50% v cc 0 v 3 v voltage waveforms enable and disable times low- and high-level enabling t plh /t phl t plz /t pzl t phz /t pzh open drain open v cc gnd v cc test s1 3 v 0 v t w voltage waveforms pulse duration input notes: a. c l includes probe and jig 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. all input pulses are supplied by generators having the following characteristics: prr 1 mhz, z o = 50 ? , t r 3 ns, t f 3 ns. d. the outputs are measured one at a time with one input transition per measurement. e. all parameters and waveforms are not applicable to all devices. from output under test c l (see note a) load circuit for 3-state and open-drain outputs s1 v cc r l = 1 k ? gnd from output under test c l (see note a) test point load circuit for totem-pole outputs open v oh ? 0.3 v 1.5 v 1.5 v 1.5 v 1.5 v 1.5 v 1.5 v 1.5 v 1.5 v 1.5 v 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) 5962-9685801q2a active lccc fk 20 1 tbd call ti level-nc-nc-nc 5962-9685801qra active cdip j 20 1 tbd call ti level-nc-nc-nc 5962-9685801qsa active cfp w 20 1 tbd call ti level-nc-nc-nc sn74ahct541dble obsolete ssop db 20 tbd call ti call ti sn74ahct541dbr active ssop db 20 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74ahct541dbre4 active ssop db 20 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74ahct541dw active soic dw 20 25 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74ahct541dwe4 active soic dw 20 25 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74ahct541dwr active soic dw 20 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim SN74AHCT541DWRE4 active soic dw 20 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74ahct541n active pdip n 20 20 pb-free (rohs) cu nipdau level-nc-nc-nc sn74ahct541ne4 active pdip n 20 20 pb-free (rohs) cu nipdau level-nc-nc-nc sn74ahct541nsr active so ns 20 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74ahct541nsre4 active so ns 20 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74ahct541pw active tssop pw 20 70 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74ahct541pwe4 active tssop pw 20 70 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74ahct541pwle obsolete tssop pw 20 tbd call ti call ti sn74ahct541pwr active tssop pw 20 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74ahct541pwre4 active tssop pw 20 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74ahct541pwrg4 active tssop pw 20 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim snj54ahct541fk active lccc fk 20 1 tbd call ti level-nc-nc-nc snj54ahct541j active cdip j 20 1 tbd call ti level-nc-nc-nc snj54ahct541w active cfp w 20 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. package option addendum www.ti.com 26-sep-2005 addendum-page 1
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 26-sep-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 msso002e ? january 1995 ? revised december 2001 post office box 655303 ? dallas, texas 75265 db (r-pdso-g**) plastic small-outline 4040065 /e 12/01 28 pins shown gage plane 8,20 7,40 0,55 0,95 0,25 38 12,90 12,30 28 10,50 24 8,50 seating plane 9,90 7,90 30 10,50 9,90 0,38 5,60 5,00 15 0,22 14 a 28 1 20 16 6,50 6,50 14 0,05 min 5,90 5,90 dim a max a min pins ** 2,00 max 6,90 7,50 0,65 m 0,15 0 ? 8 0,10 0,09 0,25 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-150
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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