philips semiconductors product specification 74lvt2241 3.3v octal buffer/line driver with 30 series termination resistors; 3-state 1 1996 may 29 853-1840 16867 features ? octal bus interface ? 3-state buffers ? output capability: +12ma/-12ma ? ttl input and output switching levels ? input and output interface capability to systems at 5v supply ? bus-hold data inputs eliminate the need for external pull-up resistors to hold unused inputs ? power-up 3-state ? live insertion/extraction permitted ? no bus current loading when output is tied to 5v bus ? latch-up protection exceeds 500ma per jedec std 17 ? esd protection exceeds 2000v per mil std 883 method 3015 and 200v per machine model. ? outputs include series resistance of 30 w , making external termination resistors unnecessary. description the 74lvt2241 high-performance bicmos device combines low static and dynamic power dissipation with high speed and high output drive. the 74lvt2241 device is an octal buffer that is ideal for driving bus lines. the device features two output enables (1oe , 2oe), each controlling four of the 3-state outputs. the 74lvt2241 is designed with 30 w series resistance in both the high and low states of the output. this design reduces the line noise in applications such as memory address drivers, clock drivers and bus receivers/transmitters. quick reference data symbol parameter conditions t amb = 25 c; gnd = 0v typical unit t plh t phl propagation delay nax to nyx c l = 50pf; v cc = 3.3v 3.0 3.3 ns c in input capacitance v i = 0v or 3.0v 4 pf c out output capacitance outputs disabled; v o = 0v or 3.0v 8 pf i ccz total supply current outputs disabled; v cc = 3.6v 0.12 ma ordering information packages temperature range outside north america north america dwg number 20-pin plastic sol 40 c to +85 c 74lvt2241 d 74lvt2241 d sot163-1 20-pin plastic ssop type ii 40 c to +85 c 74lvt2241 db 74lvt2241 db sot339-1 20-pin plastic tssop type i 40 c to +85 c 74lvt2241 pw 7lvt2241pw dh sot360-1 pin configuration 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 1oe 1a0 2y0 1a1 2y1 1a2 2y2 1a3 2y3 1y3 gnd 2a2 1y2 2a1 1y1 2a0 1y0 2oe v cc 2a3 sa00038 pin description pin number symbol name and function 2, 4, 6, 8 1a0 1a3 data inputs 17, 15, 13, 11 2a0 2a3 data inputs 18, 16, 14, 12 1y0 1y3 data outputs 3, 5, 7, 9 2y0 2y3 data outputs 1, 19 1oe , 2oe output enables 10 gnd ground (0v) 20 v cc positive supply voltage
philips semiconductors product specification 74lvt2241 3.3v octal buffer/line driver with 30 series termination resistors; 3-state 1996 may 29 2 logic symbol (ieee/iec) 1 2 18 4 16 6 14 812 19 17 3 15 5 13 7 11 9 en en sa00040 schematic of each output v cc v cc output 22 w 20 w sw00202 logic symbol 1oe 1 1a0 2 1a1 4 1a2 6 1a3 8 2oe 19 2a0 17 2a1 18 15 2a2 13 16 2a3 11 14 12 1y0 1y1 1y2 1y3 2y0 2y1 2y2 2y3 3 5 7 9 sa00039 function table inputs outputs 1oe 1an 2oe 2an 1yn 2yn l l h l l l l h h h h h h x l x z z h = high voltage level l = low voltage level x = don't care z = high impedance aoff o state absolute maximum ratings 1, 2 symbol parameter conditions rating unit v cc dc supply voltage 0.5 to +4.6 v v i dc input voltage 3 0.5 to +7.0 v v out dc output voltage 3 output in off or high state 0.5 to +7.0 v i o dc out p ut current output in low state 128 ma i out dc o u tp u t c u rrent output in high state 64 ma i ik dc input diode current v i < 0 50 ma i ok dc output diode current v o < 0 50 ma t stg storage temperature range 65 to 150 c notes: 1. stresses beyond those listed 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 arecommended operating conditionso is not implied. exposur e to absolute-maximum-rated conditions for extended periods may affect device reliability. 2. the performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create ju nction temperatures which are detrimental to reliability. the maximum junction temperature of this integrated circuit should not excee d 150 c. 3. the input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed.
philips semiconductors product specification 74lvt2241 3.3v octal buffer/line driver with 30 series termination resistors; 3-state 1996 may 29 3 recommended operating conditions symbol parameter limits unit symbol parameter min max unit v cc dc supply voltage 2.7 3.6 v v i input voltage 0 5.5 v v ih high-level input voltage 2.0 v v il low-level input voltage 0.8 v i oh high-level output current 12 ma i ol low-level output current 12 ma d t/ d v input transition rise or fall rate; outputs enabled 10 ns/v t amb operating free-air temperature range 40 +85 c dc electrical characteristics limits symbol parameter test conditions t amb = -40 c to +85 c unit min typ 1 max v ik input clamp voltage v cc = 2.7v; i i = 18ma 0.9 1.2 v v oh high-level output voltage v cc = 3v; i oh = 12ma 2 2.2 v v ol low-level output voltage v cc = 3v; i ol = 12ma 0.8 v v cc = 0 or 3.6v; v i = 5.5v 1 10 i i in p ut leakage current v cc = 3.6v; v i = v cc or gnd control pins 0.1 1 m a i i in ut leakage current v cc = 3.6v; v i = v cc data p ins 4 0.1 1 m a v cc = 3.6v; v i = 0 data ins 4 1 -5 i off output off current v cc = 0v; v i or v o = 0 to 4.5v 1 100 m a i hold bus hold current a in p uts v cc = 3.0v; v i = 0.8v ain p uts 75 150 m a i hold bus hold current a in uts v cc = 3.0v; v i = 2.0v a in uts -75 150 i ex current into an output in the high state when v o > v cc v o = 5.5v; v cc = 3.0v 60 125 m a i pu/pd power up/down 3-state output current 3 v cc = 1.2v; v o = 0.5v to v cc ; v i = gnd or v cc ; oe/oe = don't care 1 100 m a i ozh 3-state output high current v cc = 3.6v; v o = 3.0v 1 5 m a i ozl 3-state output low current v cc = 3.6v; v o = 0.5v 1 5 m a i cch v cc = 3.6v; outputs high, v i = gnd or v cc, i o = 0 0.12 0.19 i ccl quiescent supply current v cc = 3.6v; outputs low, v i = gnd or v cc, i o = 0 3 12 ma i ccz v cc = 3.6v; outputs disabled; v i = gnd or v cc, i o = 0 5 0.12 0.19 d i cc additional supply current per input pin 2 v cc = 3.0 to 3.6v; one input at v cc -0.6v; other inputs at v cc or gnd 0.1 0.25 ma notes: 1. all typical values are at t amb = 25 c. 2. this is the increase in supply current for each input at v cc 0.6v. 3. this parameter is valid for any v cc between 0v and 1.2v with a transition time of up to 10msec. from v cc = 1.2v to v cc = 3.3v 10% a transition time of 100 m sec is permitted. this parameter is valid for t amb = 25 c only. 4. unused pins at v cc or gnd 5. i ccz is measured with outputs pulled to v cc or gnd.
philips semiconductors product specification 74lvt2241 3.3v octal buffer/line driver with 30 series termination resistors; 3-state 1996 may 29 4 ac characteristics gnd = 0v; t r = t f = 2.5ns; c l = 50pf; r l = 500 w ;t amb = 40 c to +85 c. limits symbol parameter waveform t amb = 40 c to +85 c v cc = +3.3v 0.3v v cc = 2.7v unit min typ 1 max max t plh t phl propagation delay nax to ny x 1 1 1 3.0 3.3 4.2 4.3 5.0 4.7 ns t pzh t pzl output enable time to high and low level, 1oe to 1y n 2 1 1 4.4 4.3 6.2 5.9 8.5 6.8 ns t phz t plz output disable time from high and low level, 1oe to 1y n 2 1 1.6 3.4 3.2 5.0 4.5 5.2 4.5 ns t pzh t pzl output enable time to high and low level, 2oe to 2y n 2 1 1 4.4 4.1 6.2 5.5 7.9 6.2 ns t phz t plz output disable time from high and low level, 2oe to 2y n 2 1 1 3.9 3.8 5.7 5.1 6.4 5.8 ns note: 1. all typical values are at v cc = 3.3v and t amb = 25 c. ac waveforms v m = 1.5v, v in = gnd to 3.0v an input v m v m yn output v m v m t plh t phl sa00028 waveform 1. waveforms showing the input (an) to output (yn) propagation delays oe input v m v m t pzh t phz yn output v oh v m v m yn output v ol t pzl t plz 3.5v 0v v ol + 0.3v v oh 0.3v sa00041 oe input waveform 2. waveforms showing the 3state output enable and disable times
philips semiconductors product specification 74lvt2241 3.3v octal buffer/line driver with 30 series termination resistors; 3-state 1996 may 29 5 test circuit and waveforms v m v m t w amp (v) negative pulse 10% 10% 90% 90% 0v v m v m t w amp (v) positive pulse 90% 90% 10% 10% 0v t thl (t f ) t tlh (t r )t thl (t f ) t tlh (t r ) v m = 1.5v input pulse definition definitions r l = load resistor; see ac characteristics for value. c l = load capacitance includes jig and probe capacitance; see ac characteristics for value. r t = termination resistance should be equal to z out of pulse generators. input pulse requirements family 74lvt pulse generator v in d.u.t. v out c l v cc r l test circuit for 3-state outputs 6.0v r t r l sv00092 open gnd switch position test switch t plh /t phl t plz /t pzl t phz /t pzh open 6v gnd amplitude rep. rate t w t r t f 2.7v 10mhz 500ns 2.5ns 2.5ns
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