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1. general description the 74lvt244b; 74lvth244b is a high-performance bicmos product designed for v cc operation at 3.3 v. this device is an octal buffer that is ideal for driving bus lines. the device features two output enable inputs (1 oe and 2 oe), each controlling four of the 3-state outputs. 2. features n octal bus interface n 3-state buffers n speed upgrade of 74lvt244a n output capability: +64 ma and - 32 ma n ttl input and output switching levels n input and output interface capability to systems at 5 v supply n bus hold data inputs eliminate need for external pull-up resistors to hold unused inputs n power-up 3-state n live insertion and extraction permitted n no bus current loading when output is tied to 5 v bus n latch-up protection: u jesd78: exceeds 500 ma n esd protection: u hbm eia/jesd22-a114-c exceeds 2000 v u mm eia/jesd22-a115-a 200 v 3. quick reference data 74lvt244b; 74lvth244b 3.3 v octal buffer/line driver; 3-state rev. 03 3 march 2006 product data sheet table 1. quick reference data gnd = 0 v; t amb = 25 c. symbol parameter conditions min typ max unit t plh low-to-high propagation delay nan to nyn c l = 50 pf; v cc = 3.3 v - 1.9 - ns t phl high-to-low propagation delay nan to nyn c l = 50 pf; v cc = 3.3 v - 2.0 - ns
74lvt_lvth244b_3 ? koninklijke philips electronics n.v. 2006. all rights reserved. product data sheet rev. 03 3 march 2006 2 of 15 philips semiconductors 74lvt244b; 74lvth244b 3.3 v octal buffer/line driver; 3-state 4. ordering information c i input capacitance v i = 0 v or 3.0 v - 4 - pf c o output capacitance outputs disabled; v o = 0 v or 3.0 v -8-pf i cc quiescent supply current outputs disabled; v cc = 3.6 v; i o =0a; v i = gnd or v cc - 0.13 - ma table 1. quick reference data continued gnd = 0 v; t amb = 25 c. symbol parameter conditions min typ max unit table 2. ordering information type number package temperature range name description version 74LVT244BD - 40 c to +85 c so20 plastic small outline package; 20 leads; body width 7.5 mm sot163-1 74LVT244BDb - 40 c to +85 c ssop20 plastic shrink small outline package; 20 leads; body width 5.3 mm sot339-1 74lvt244bpw - 40 c to +85 c tssop20 plastic thin shrink small outline package; 20 leads; body width 4.4 mm sot360-1 74lvth244bd - 40 c to +85 c so20 plastic small outline package; 20 leads; body width 7.5 mm sot163-1 74lvth244bdb - 40 c to +85 c ssop20 plastic shrink small outline package; 20 leads; body width 5.3 mm sot339-1 74lvth244bpw - 40 c to +85 c tssop20 plastic thin shrink small outline package; 20 leads; body width 4.4 mm sot360-1
74lvt_lvth244b_3 ? koninklijke philips electronics n.v. 2006. all rights reserved. product data sheet rev. 03 3 march 2006 3 of 15 philips semiconductors 74lvt244b; 74lvth244b 3.3 v octal buffer/line driver; 3-state 5. functional diagram 6. pinning information 6.1 pinning fig 1. logic symbol fig 2. iec logic symbol mna825 1a3 1a2 1a1 1a0 2 4 6 8 1 1y0 1y1 18 16 14 12 1y2 1y3 1oe 2a3 2a2 2a1 2a0 11 13 15 17 19 2y0 2y1 9 7 5 3 2y2 2y3 2oe 2 4 6 8 1 en mna826 11 13 15 17 12 14 18 16 3 5 9 7 19 en fig 3. pin con?guration so20, ssop20 and tssop20 74lvt244b 74lvth244b 1oe v cc 1a0 2oe 2y3 1y0 1a1 2a3 2y2 1y1 1a2 2a2 2y1 1y2 1a3 2a1 2y0 1y3 gnd 2a0 001aae463 1 2 3 4 5 6 7 8 9 10 12 11 14 13 16 15 18 17 20 19
74lvt_lvth244b_3 ? koninklijke philips electronics n.v. 2006. all rights reserved. product data sheet rev. 03 3 march 2006 4 of 15 philips semiconductors 74lvt244b; 74lvth244b 3.3 v octal buffer/line driver; 3-state 6.2 pin description 7. functional description 7.1 function table [1] h = high voltage level; l = low voltage level; x = dont care; z = high-impedance off-state. table 3. pin description symbol pin description 1 oe 1 1 output enable input 1a0 2 1 data input 0 2y3 3 2 data output 3 1a1 4 1 data input 1 2y2 5 2 data output 2 1a2 6 1 data input 2 2y1 7 2 data output 1 1a3 8 1 data input 3 2y0 9 2 data output 0 gnd 10 ground (0 v) 2a0 11 2 data input 0 1y3 12 1 data output 3 2a1 13 2 data input 1 1y2 14 1 data output 2 2a2 15 2 data input 2 1y1 16 1 data output 1 2a3 17 2 data input 3 1y0 18 1 data output 0 2 oe 19 2 output enable input v cc 20 supply voltage table 4. function table [1] control input output n oe nan nyn lll hh hxz
74lvt_lvth244b_3 ? koninklijke philips electronics n.v. 2006. all rights reserved. product data sheet rev. 03 3 march 2006 5 of 15 philips semiconductors 74lvt244b; 74lvth244b 3.3 v octal buffer/line driver; 3-state 8. limiting values [1] the input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed. [2] the performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction temperatures which are detrimental to reliability. 9. recommended operating conditions table 5. limiting values in accordance with the absolute maximum rating system (iec 60134). voltages are referenced to gnd (ground = 0 v). symbol parameter conditions min max unit v cc supply voltage - 0.5 +4.6 v v i input voltage [1] - 0.5 +7.0 v v o output voltage output in off-state or high-state [1] - 0.5 +7.0 v i ik input clamping current v i < 0 v - - 50 ma i ok output clamping current v o < 0 v - - 50 ma i o output current output in low-state - 128 ma output in high-state - - 64 ma t stg storage temperature - 65 +150 c t j junction temperature [2] - 150 c table 6. recommended operating conditions symbol parameter conditions min typ max unit v cc supply voltage 2.7 - 3.6 v v i input voltage 0 - 5.5 v v ih high-state input voltage 2.0 - - v v il low-state input voltage - - 0.8 v i oh high-state output current - - - 32 ma i ol low-state output current none - - 32 ma current duty cycle 50 %; f i 3 1 khz --64ma t amb ambient temperature in free-air - 40 - +85 c d t/ d v input transition rise and fall rate outputs enabled - - 10 ns/v
74lvt_lvth244b_3 ? koninklijke philips electronics n.v. 2006. all rights reserved. product data sheet rev. 03 3 march 2006 6 of 15 philips semiconductors 74lvt244b; 74lvth244b 3.3 v octal buffer/line driver; 3-state 10. static characteristics table 7. static characteristics at recommended operating conditions; voltages are referenced to gnd (ground = 0 v). symbol parameter conditions min typ max unit t amb = - 40 c to +85 c [1] v ik input clamping voltage v cc = 2.7 v; i ik = - 18 ma - - 0.9 - 1.2 v v oh high-state output voltage v cc = 2.7 v i oh = - 100 m av cc - 2.0 v cc - 2.1 - v i oh = - 8 ma 2.4 2.5 - v v cc = 3.0 v i oh = - 32 ma 2.0 2.2 - v v ol low-state output voltage v cc = 2.7 v i ol = 100 m a - 0.1 0.2 v i ol = 24 ma - 0.3 0.5 v v cc = 3.0 v i ol = 16 ma - 0.25 0.4 v i ol = 32 ma - 0.3 0.5 v i ol = 64 ma - 0.4 0.55 v i li input leakage current all pins v cc = 0 v or 3.6 v; v i = 5.5 v - 0.1 10 m a control pins v cc = 3.6 v; v i =v cc or gnd - 0.1 1 m a i/o data pins v cc = 3.6 v [2] v i =v cc - 0.1 1 m a v i =0v - - 1 - 5 m a i off power-off leakage current v cc = 0 v; v i or v o = 0 v to 4.5 v - 1 100 m a i hold bus hold current data input v cc = 3 v [3] v i = 0.8 v 75 130 - m a v i = 2.0 v - 75 - 140 - m a v cc = 0 v to 3.6 v v i = 3.6 v 500 - - m a i ex external current into output output in high-state when v o >v cc ; v o = 5.5 v; v cc = 3.3 v - 60 125 m a i o(pu/pd) power-up/power-down output current v cc 1.2 v; v o = 0.5 v to v cc ; v i = gnd or v cc ;n oe = dont care [4] - 1 100 m a i oz off-state output current v cc = 3.6 v; v i = v ih or v il output high: v o = 3.0 v - 1 5 m a output low: v o = 0.5 v - - 1 - 5 m a i cc quiescent supply current v cc = 3.6 v; v i = gnd or v cc ; i o =0a output high - 0.13 0.19 ma output low - 2 5 ma outputs disabled [5] - 0.13 0.19 ma
74lvt_lvth244b_3 ? koninklijke philips electronics n.v. 2006. all rights reserved. product data sheet rev. 03 3 march 2006 7 of 15 philips semiconductors 74lvt244b; 74lvth244b 3.3 v octal buffer/line driver; 3-state [1] typical values are measured at t amb = 25 c. [2] unused pins at v cc or gnd. [3] this is the bus hold overdrive current required to force the input to the opposite logic state. [4] this parameter is valid for any v cc between 0 v and 1.2 v with a transition time of up to 10 ms. from v cc = 1.2 v to v cc = 3.3 v 0.3 v a transition time of 100 m s is permitted. this parameter is valid for t amb = 25 c only. [5] i cc is measured with outputs pulled to v cc or gnd. [6] this is the increase in supply current for each input at v cc - 0.6 v . 11. dynamic characteristics [1] typical values are measured at v cc = 3.3 v and t amb = 25 c. d i cc additional quiescent supply current per input pin; v cc = 3.0 v to 3.6 v; one input at v cc - 0.6 v and other inputs at v cc or gnd [6] - 0.1 0.2 ma c i input capacitance v i = 0 v or 3.0 v - 4 - pf c o output capacitance outputs disabled; v o = 0 v or 3.0 v - 8 - pf table 7. static characteristics continued at recommended operating conditions; voltages are referenced to gnd (ground = 0 v). symbol parameter conditions min typ max unit table 8. dynamic characteristics voltages are referenced to gnd (ground = 0 v); for test circuit see figure 6 . symbol parameter conditions min typ max unit t amb = - 40 c to +85 c [1] t plh low-to-high propagation delay nan to nyn see figure 4 v cc = 2.7 v - - 3.8 ns v cc = 3.0 v to 3.6 v 1.1 1.9 3.5 ns t phl high-to-low propagation delay nan to nyn see figure 4 v cc = 2.7 v - - 3.6 ns v cc = 3.0 v to 3.6 v 1.3 2.0 3.3 ns t pzh output enable time to high-level n oe to nyn see figure 5 v cc = 2.7 v - - 5.3 ns v cc = 3.0 v to 3.6 v 1.1 2.8 4.5 ns t pzl output enable time to low-level n oe to nyn see figure 5 v cc = 2.7 v - - 4.9 ns v cc = 3.0 v to 3.6 v 1.4 2.3 4.4 ns t phz output disable time from high-level n oe to nyn see figure 5 v cc = 2.7 v - - 4.5 ns v cc = 3.0 v to 3.6 v 1.9 2.9 4.4 ns t plz output disable time from low-level n oe to nyn see figure 5 v cc = 2.7 v - - 4.4 ns v cc = 3.0 v to 3.6 v 1.8 2.5 4.4 ns
74lvt_lvth244b_3 ? koninklijke philips electronics n.v. 2006. all rights reserved. product data sheet rev. 03 3 march 2006 8 of 15 philips semiconductors 74lvt244b; 74lvth244b 3.3 v octal buffer/line driver; 3-state 12. waveforms measurement points are given in t ab le 9 . v ol and v oh are typical voltage output drop that occur with the output load. fig 4. propagation delay input (nan) to output (nyn) measurement points are given in t ab le 9 . v ol and v oh are typical voltage output drop that occur with the output load. fig 5. 3-state output enable and disable times table 9. measurement points input output v m v m v x v y 1.5 v 1.5 v v ol + 0.3 v v oh - 0.3 v mna171 nan input nyn output t plh t phl gnd v i v m v m v m v m v oh v ol 001aae464 t pzl nyn output nyn output noe input v ol v oh 3.0 v v i v m gnd 0 v t plz t pzh t phz v x v y v m v m
74lvt_lvth244b_3 ? koninklijke philips electronics n.v. 2006. all rights reserved. product data sheet rev. 03 3 march 2006 9 of 15 philips semiconductors 74lvt244b; 74lvth244b 3.3 v octal buffer/line driver; 3-state test data is given in t ab le 10 . de?nitions test circuit: r l = load resistor. c l = load capacitance including jig and probe capacitance. r t = termination resistance should be equal to output impedance z o of the pulse generator. v ext = test voltage for switching times. fig 6. load circuitry for switching times table 10. test data input load v ext v i f i t w t r , t f c l r l t phz , t pzh t plz , t pzl t plh , t phl 2.7 v 10 mhz 500 ns 2.5 ns 50 pf 500 w gnd 6 v open v ext v cc v i v o 001aae235 dut c l r t r l r l pulse generator v m v m t w t w 10 % 90 % 0 v v i v i negative pulse positive pulse 0 v v m v m 90 % 10 % t f t r t r t f
74lvt_lvth244b_3 ? koninklijke philips electronics n.v. 2006. all rights reserved. product data sheet rev. 03 3 march 2006 10 of 15 philips semiconductors 74lvt244b; 74lvth244b 3.3 v octal buffer/line driver; 3-state 13. package outline fig 7. package outline sot163-1 (so20) unit a max. a 1 a 2 a 3 b p cd (1) e (1) (1) eh e ll p q z y w v q references outline version european projection issue date iec jedec jeita mm inches 2.65 0.3 0.1 2.45 2.25 0.49 0.36 0.32 0.23 13.0 12.6 7.6 7.4 1.27 10.65 10.00 1.1 1.0 0.9 0.4 8 0 o o 0.25 0.1 dimensions (inch dimensions are derived from the original mm dimensions) note 1. plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included. 1.1 0.4 sot163-1 10 20 w m b p detail x z e 11 1 d y 0.25 075e04 ms-013 pin 1 index 0.1 0.012 0.004 0.096 0.089 0.019 0.014 0.013 0.009 0.51 0.49 0.30 0.29 0.05 1.4 0.055 0.419 0.394 0.043 0.039 0.035 0.016 0.01 0.25 0.01 0.004 0.043 0.016 0.01 0 5 10 mm scale x q a a 1 a 2 h e l p q e c l v m a (a ) 3 a so20: plastic small outline package; 20 leads; body width 7.5 mm sot163-1 99-12-27 03-02-19
74lvt_lvth244b_3 ? koninklijke philips electronics n.v. 2006. all rights reserved. product data sheet rev. 03 3 march 2006 11 of 15 philips semiconductors 74lvt244b; 74lvth244b 3.3 v octal buffer/line driver; 3-state fig 8. package outline sot339-1 (ssop20) unit a 1 a 2 a 3 b p cd (1) e (1) eh e ll p q (1) z y w v q references outline version european projection issue date iec jedec jeita mm 0.21 0.05 1.80 1.65 0.38 0.25 0.20 0.09 7.4 7.0 5.4 5.2 0.65 7.9 7.6 0.9 0.7 0.9 0.5 8 0 o o 0.13 1.25 0.2 0.1 dimensions (mm are the original dimensions) note 1. plastic or metal protrusions of 0.2 mm maximum per side are not included. 1.03 0.63 sot339-1 mo-150 99-12-27 03-02-19 x w m q a a 1 a 2 b p d h e l p q detail x e z e c l v m a (a ) 3 a 110 20 11 y 0.25 pin 1 index 0 2.5 5 mm scale ssop20: plastic shrink small outline package; 20 leads; body width 5.3 mm sot339-1 a max. 2
74lvt_lvth244b_3 ? koninklijke philips electronics n.v. 2006. all rights reserved. product data sheet rev. 03 3 march 2006 12 of 15 philips semiconductors 74lvt244b; 74lvth244b 3.3 v octal buffer/line driver; 3-state fig 9. package outline sot360-1 (tssop20) unit a 1 a 2 a 3 b p cd (1) e (2) (1) eh e ll p qz y w v q references outline version european projection issue date iec jedec jeita mm 0.15 0.05 0.95 0.80 0.30 0.19 0.2 0.1 6.6 6.4 4.5 4.3 0.65 6.6 6.2 0.4 0.3 0.5 0.2 8 0 o o 0.13 0.1 0.2 1 dimensions (mm are the original dimensions) notes 1. plastic or metal protrusions of 0.15 mm maximum per side are not included. 2. plastic interlead protrusions of 0.25 mm maximum per side are not included. 0.75 0.50 sot360-1 mo-153 99-12-27 03-02-19 w m b p d z e 0.25 110 20 11 pin 1 index q a a 1 a 2 l p q detail x l (a ) 3 h e e c v m a x a y 0 2.5 5 mm scale tssop20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm sot360-1 a max. 1.1
74lvt_lvth244b_3 ? koninklijke philips electronics n.v. 2006. all rights reserved. product data sheet rev. 03 3 march 2006 13 of 15 philips semiconductors 74lvt244b; 74lvth244b 3.3 v octal buffer/line driver; 3-state 14. abbreviations 15. revision history table 11. abbreviations acronym description bicmos bipolar complementary metal oxide semiconductor dut device under test esd electrostatic discharge hbm human body model mm machine model ttl transistor-transistor logic table 12. revision history document id release date data sheet status change notice supersedes 74lvt_lvth244b_3 20060303 product data sheet - 74lvt244b_2 (9397 750 11918) modi?cations: ? the format of this data sheet has been redesigned to comply with the new presentation and information standard of philips semiconductors. ? section 4 : added type numbers 74lvth244bd, 74lvth244bdb and 74lvth244bpw. 74lvt244b_2 20030919 product speci?cation - 74lvt244b_1 (9397 750 04814) 74lvt244b_1 19981101 product speci?cation - -
74lvt_lvth244b_3 ? koninklijke philips electronics n.v. 2006. all rights reserved. product data sheet rev. 03 3 march 2006 14 of 15 philips semiconductors 74lvt244b; 74lvth244b 3.3 v octal buffer/line driver; 3-state 16. legal information 16.1 data sheet status [1] please consult the most recently issued document before initiating or completing a design. [2] the term short data sheet is explained in section de?nitions. [3] the product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple dev ices. the latest product status information is available on the internet at url http://www .semiconductors .philips .com. 16.2 de?nitions draft the document is a draft version only. the content is still under internal review and subject to formal approval, which may result in modi?cations or additions. philips semiconductors does not give any representations or warranties as to the accuracy or completeness of information included herein and shall have no liability for the consequences of use of such information. short data sheet a short data sheet is an extract from a full data sheet with the same product type number(s) and title. a short data sheet is intended for quick reference only and should not be relied upon to contain detailed and full information. for detailed and full information see the relevant full data sheet, which is available on request via the local philips semiconductors sales of?ce. in case of any inconsistency or con?ict with the short data sheet, the full data sheet shall prevail. 16.3 disclaimers general information in this document is believed to be accurate and reliable. however, philips semiconductors does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information and shall have no liability for the consequences of use of such information. right to make changes philips semiconductors reserves the right to make changes to information published in this document, including without limitation speci?cations and product descriptions, at any time and without notice. this document supersedes and replaces all information supplied prior to the publication hereof. suitability for use philips semiconductors products are not designed, authorized or warranted to be suitable for use in medical, military, aircraft, space or life support equipment, nor in applications where failure or malfunction of a philips semiconductors product can reasonably be expected to result in personal injury, death or severe property or environmental damage. philips semiconductors accepts no liability for inclusion and/or use of philips semiconductors products in such equipment or applications and therefore such inclusion and/or use is for the customers own risk. applications applications that are described herein for any of these products are for illustrative purposes only. philips semiconductors makes no representation or warranty that such applications will be suitable for the speci?ed use without further testing or modi?cation. limiting values stress above one or more limiting values (as de?ned in the absolute maximum ratings system of iec 60134) may cause permanent damage to the device. limiting values are stress ratings only and operation of the device at these or any other conditions above those given in the characteristics sections of this document is not implied. exposure to limiting values for extended periods may affect device reliability. terms and conditions of sale philips semiconductors products are sold subject to the general terms and conditions of commercial sale, as published at http://www .semiconductors .philips .com/pro? le/ter ms , including those pertaining to warranty, intellectual property rights infringement and limitation of liability, unless explicitly otherwise agreed to in writing by philips semiconductors. in case of any inconsistency or con?ict between information in this document and such terms and conditions, the latter will prevail. no offer to sell or license nothing in this document may be interpreted or construed as an offer to sell products that is open for acceptance or the grant, conveyance or implication of any license under any copyrights, patents or other industrial or intellectual property rights. 16.4 trademarks notice: all referenced brands, product names, service names and trademarks are the property of their respective owners. 17. contact information for additional information, please visit: http://www.semiconductors.philips.com for sales of?ce addresses, send an email to: sales.addresses@www.semiconductors.philips.com document status [1] [2] product status [3] de?nition objective [short] data sheet development this document contains data from the objective speci?cation for product development. preliminary [short] data sheet quali?cation this document contains data from the preliminary speci?cation. product [short] data sheet production this document contains the product speci?cation.
philips semiconductors 74lvt244b; 74lvth244b 3.3 v octal buffer/line driver; 3-state ? koninklijke philips electronics n.v. 2006. all rights reserved. for more information, please visit: http://www.semiconductors.philips.com. for sales office addresses, email to: sales.addresses@www.semiconductors.philips.com. date of release: 3 march 2006 document identifier: 74lvt_lvth244b_3 please be aware that important notices concerning this document and the product(s) described herein, have been included in section legal information. 18. contents 1 general description . . . . . . . . . . . . . . . . . . . . . . 1 2 features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 3 quick reference data . . . . . . . . . . . . . . . . . . . . . 1 4 ordering information . . . . . . . . . . . . . . . . . . . . . 2 5 functional diagram . . . . . . . . . . . . . . . . . . . . . . 3 6 pinning information . . . . . . . . . . . . . . . . . . . . . . 3 6.1 pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 6.2 pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4 7 functional description . . . . . . . . . . . . . . . . . . . 4 7.1 function table . . . . . . . . . . . . . . . . . . . . . . . . . . 4 8 limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 5 9 recommended operating conditions. . . . . . . . 5 10 static characteristics. . . . . . . . . . . . . . . . . . . . . 6 11 dynamic characteristics . . . . . . . . . . . . . . . . . . 7 12 waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 13 package outline . . . . . . . . . . . . . . . . . . . . . . . . 10 14 abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . 13 15 revision history . . . . . . . . . . . . . . . . . . . . . . . . 13 16 legal information. . . . . . . . . . . . . . . . . . . . . . . 14 16.1 data sheet status . . . . . . . . . . . . . . . . . . . . . . 14 16.2 de?nitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 16.3 disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 16.4 trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 17 contact information. . . . . . . . . . . . . . . . . . . . . 14 18 contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

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