SN54BCT2244, sn74bct2244 octal buffers and line/mos drivers with 3-state outputs scbs017d ? september 1988 ? revised march 2003 1 post office box 655303 ? dallas, texas 75265 operating voltage range of 4.5 v to 5.5 v state-of-the-art bicmos design significantly reduces i ccz output ports have equivalent 33- ? series resistors, so no external resistors are required 3-state outputs drive bus lines or buffer memory address registers description/ordering information the ?bct2244 devices are designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. together with the ?bct2240 devices and sn74bct2241, these devices provide the choice of selected combinations of inverting and noninverting outputs, symmetrical active-low output-enable (oe ) inputs, and complementary oe and oe inputs. these devices feature high fan-out and improved fan-in. 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. the outputs, which are designed to source or sink up to 12 ma, include 33- ? series resistors to reduce overshoot and undershoot. ordering information t a package ? orderable part number top-side marking pdip ? n tube sn74bct2244n sn74bct2244n 0 cto70 c soic dw tube sn74bct2244dw bct2244 0 c to 70 c soic ? dw tape and reel sn74bct2244dwr bct2244 sop ? ns tape and reel sn74bct2244nsr bct2244 cdip ? j tube snj54bct2244j snj54bct2244j ?55 c to 125 c cfp ? w tube snj54bct2244w snj54bct2244w lccc ? fk tube snj54bct2244fk snj54bct2244fk ? package drawings, standard packing quantities, thermal data, symbolization, and pcb design guidelines are available at www.ti.com/sc/package. 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 1oe 1a1 2y4 1a2 2y3 1a3 2y2 1a4 2y1 gnd v cc 2oe 1y1 2a4 1y2 2a3 1y3 2a2 1y4 2a1 3212019 910111213 4 5 6 7 8 18 17 16 15 14 1y1 2a4 1y2 2a3 1y3 1a2 2y3 1a3 2y2 1a4 SN54BCT2244 . . . fk package (top view) 2y4 1a1 1oe 1y4 2a2 2oe 2y1 gnd 2a1 v cc SN54BCT2244 ...j or w p ackage sn74bct2244 ...dw, n, or ns p ackage (top view) copyright ? 2003, texas instruments incorporated 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. 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. 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.
SN54BCT2244, sn74bct2244 octal buffers and line/mos drivers with 3-state outputs scbs017d ? september 1988 ? revised march 2003 2 post office box 655303 ? dallas, texas 75265 function table (each buffer) inputs output oe a y l h h l ll h x z logic diagram (positive logic) 1 2 4 6 8 19 11 13 15 17 3 5 7 9 12 14 16 18 1a1 1a2 1a3 1a4 1y1 2a1 2a2 2a3 2a4 2y1 1y2 1y3 1y4 2y2 2y3 2y4 1oe 2oe
SN54BCT2244, sn74bct2244 octal buffers and line/mos drivers with 3-state outputs scbs017d ? september 1988 ? revised march 2003 3 post office box 655303 ? dallas, texas 75265 schematic of y outputs output v cc gnd 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . voltage range applied to any output in the disabled or power-off state, v o ? 0.5 v to 5.5 v . . . . . . . . . . . . . . . . voltage range applied to any output in the high state, v o ? 0.5 v to v cc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . input clamp current, i ik ? 30 ma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . current into any output in the low state, i o 24 ma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . package thermal impedance, ja (see note 2): dw package 58 c/w . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . n package 69 c/w . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ns package 60 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. recommended operating conditions(see note 3) SN54BCT2244 sn74bct2244 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 ? 12 ? 12 ma i ol low-level output current 12 12 ma t a operating free-air temperature ? 55 125 0 70 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.
SN54BCT2244, sn74bct2244 octal buffers and line/mos drivers with 3-state outputs scbs017d ? september 1988 ? revised march 2003 4 post office box 655303 ? dallas, texas 75265 electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) parameter test conditions SN54BCT2244 sn74bct2244 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 oh v cc =45v i oh = ? 1 ma 2.4 2.4 v v oh v cc = 4 . 5 v i oh = ? 12 ma 2 2 v v ol v cc =45v i ol = 1 ma 0.15 0.5 0.15 0.5 v v ol v cc = 4 . 5 v i ol = 12 ma 0.35 0.8 0.35 0.8 v 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 ? 1 ? 1 ma 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 os ? v cc = 5.5 v, v o = 0 ? 100 ? 225 ? 100 ? 225 ma i cch v cc = 5.5 v, outputs open 23 37 23 37 ma i ccl v cc = 5.5 v, outputs open 53 77 53 77 ma i ccz v cc = 5.5 v, outputs open 6.5 10 6.5 10 ma c i v cc = 5 v, v i = 2.5 v or 0.5 v 6 6 pf c o v cc = 5 v, v o = 2.5 v or 0.5 v 11 11 pf ? all typical values are at v cc = 5 v, t a = 25 c. ? not more than one output should be tested at a time, and the duration of the test should not exceed one second. switching characteristics over recommended ranges of supply voltage and operating free-air temperature, c l = 50 pf (unless otherwise noted) (see figure 1) parameter from (input) to (output) v cc = 5 v, t a = 25 c SN54BCT2244 sn74bct2244 unit (input) (output) min typ max min max min max t plh a y 0.5 3 4.4 0.5 5.2 0.5 4.9 ns t phl a y 1.6 4.6 6.3 1.6 7.1 1.6 6.7 ns t pzh oe y 2.4 6.1 7.7 2.4 9.1 2.4 8.7 ns t pzl oe y 3.9 7.6 9.4 3.9 10.8 3.9 10.4 ns t phz oe y 1.7 5.2 6.9 1.7 8.1 1.7 7.8 ns t plz oe y 2.8 6.5 8.3 2.8 10.9 2.8 9.8 ns parameter measurement information
SN54BCT2244, sn74bct2244 octal buffers and line/mos drivers with 3-state outputs scbs017d ? september 1988 ? revised march 2003 5 post office box 655303 ? dallas, texas 75265 notes: a. c l includes probe and jig capacitance. b. all input pulses are supplied by generators having the following characteristics: prr 10 mhz, t r = t f 2.5 ns, duty cycle = 50%. c. 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. d. the outputs are measured one at a time with one transition per measurement. e. when measuring propagation delay times of 3-state outputs, switch s1 is open. f. all parameters and waveforms are not applicable to all devices. from output under test test point r1 c l (see note a) load circuit for totem-pole outputs load circuit for 3-state and open-collector outputs r1 s1 7 v (t pzl , t plz , o.c.) open (all others) from output under test test point r2 c l (see note a) r l = r1 = r2 1.5 v 1.5 v 1.5 v 3 v 3 v 0 v 0 v t h t su voltage waveforms setup and hold times timing input (see note b) data input (see note b) 1.5 v 1.5 v 3 v 3 v 0 v 0 v high-level pulse (see note b) low-level pulse t w voltage waveforms pulse duration 1.5 v 1.5 v t phl t plh t plh t phl input (see note b) out-of-phase output (see note d) 1.5 v 1.5 v 1.5 v 1.5 v 1.5 v 1.5 v 3 v 0 v v ol v oh v oh v ol in-phase output (see note d) voltage waveforms propagation delay times (see note d) t phz t plz 0.3 v t pzl t pzh 1.5 v 1.5 v 1.5 v 1.5 v 3 v 0 v output control (low-level enable) waveform 1 (see notes c and d) waveform 2 (see notes c and d) 0 v v oh v ol 3.5 v 0.3 v voltage waveforms enable and disable times, 3-state outputs 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) 5962-9074101m2a active lccc fk 20 1 tbd call ti level-nc-nc-nc 5962-9074101mra active cdip j 20 1 tbd call ti level-nc-nc-nc 5962-9074101msa active cfp w 20 1 tbd call ti level-nc-nc-nc sn74bct2244dw active soic dw 20 25 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74bct2244dwe4 active soic dw 20 25 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74bct2244dwr active soic dw 20 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74bct2244dwre4 active soic dw 20 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74bct2244n active pdip n 20 20 pb-free (rohs) cu nipdau level-nc-nc-nc sn74bct2244nsr active so ns 20 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim sn74bct2244nsre4 active so ns 20 2000 green (rohs & no sb/br) cu nipdau level-1-260c-unlim snj54bct2244fk active lccc fk 20 1 tbd call ti level-nc-nc-nc snj54bct2244j active cdip j 20 1 tbd call ti level-nc-nc-nc snj54bct2244w 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. 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 1
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
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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