industrial temperature range IDT74ALVC16244A 3.3v cmos 16-bit buffer/driver with 3-state outputs 1 june 2009 industrial temperature range the idt logo is a registered trademark of integrated device technology, inc. ? 2009 integrated device technology, inc. dsc-4698/6 features: ? 0.5 micron cmos technology ? typical t sk(o) (output skew) < 250ps ? esd > 2000v per mil-std-883, method 3015; > 200v using machine model (c = 200pf, r = 0) ?v cc = 3.3v 0.3v, normal range ?v cc = 2.7v to 3.6v, extended range ?v cc = 2.5v 0.2v ? cmos power levels (0.4 w typ. static) ? rail-to-rail output swing for increased noise margin ? available in tssop package functional block diagram applications: ? 3.3v high speed systems ? 3.3v and lower voltage computing systems drive features: ? high output drivers: 24ma ? suitable for heavy loads description: this 16-bit buffer/driver is built using advanced dual metal cmos technology. the alvc16244a is designed specifically to improve the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. the device can be used as four 4-bit buffers, two 8-bit buffers, or one 16-bit buffer. it provides true outputs and symmetrical active-low output-enable ( oe ) inputs. the alvc16244a has been designed with a 24ma output driver. this driver is capable of driving a moderate to heavy load while maintaining speed performance. IDT74ALVC16244A 3.3v cmos 16-bit buffer/driver with 3-state outputs 1 a 1 1 a 2 1 a 3 1 a 4 1 y 1 1 oe 1 y 2 1 y 3 1 y 4 2 a 1 2 a 2 2 a 3 2 a 4 2 y 1 2 oe 2 y 2 2 y 3 2 y 4 3 a 1 3 a 2 3 a 3 3 a 4 3 y 1 3 oe 3 y 2 3 y 3 3 y 4 4 a 1 4 a 2 4 a 3 4 a 4 4 y 1 4 oe 4 y 2 4 y 3 4 y 4 1 47 46 44 43 48 41 40 38 37 8 9 11 12 6 5 3 2 25 36 35 33 32 24 30 29 27 26 23 22 20 19 17 16 14 13
industrial temperature range 2 IDT74ALVC16244A 3.3v cmos 16-bit buffer/driver with 3-state outputs tssop top view pin configuration note: 1. as applicable to the device type. symbol parameter (1) conditions typ. max. unit c in input capacitance v in = 0v 5 7 pf c out output capacitance v out = 0v 7 9 pf c out i/o port capacitance v in = 0v 7 9 pf capacitance (t a = +25c, f = 1.0mhz) symbol description max unit v term (2) terminal voltage with respect to gnd ?0.5 to +4.6 v v term (3) terminal voltage with respect to gnd ?0.5 to v cc +0.5 v t stg storage temperature ?65 to +150 c i out dc output current ?50 to +50 ma i ik continuous clamp current, 50 ma v i < 0 or v i > v cc i ok continuous clamp current, v o < 0 ?50 ma i cc continuous current through each 100 ma i ss v cc or gnd absolute maximum ratings (1) notes: 1. stresses greater than those listed under absolute maximum ratings may cause permanent damage to the device. this is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect reliability. 2. v cc terminals. 3. all terminals except v cc . note: 1. h = high voltage level x = don?t care l = low voltage level z = high-impedance inputs out puts x oe xax xyx lhh lll hxz function table (1) pin names description x oe 3-state output enable inputs (active low) x a x data inputs x y x 3-state outputs pin description 1 oe 1 y 1 1 y 2 gnd 1 y 3 1 y 4 v cc 2 y 1 2 y 2 gnd 2 y 3 2 y 4 3 y 1 3 y 2 3 y 4 4 oe gnd v cc 4 y 1 4 y 2 gnd 4 y 3 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 40 41 42 43 44 45 46 47 48 1 2 oe 1 a 1 1 a 2 gnd 1 a 3 1 a 4 v cc 2 a 1 2 a 2 2 a 3 2 a 4 3 a 1 gnd 3 a 3 3 a 4 4 a 1 4 a 2 gnd 4 a 3 4 a 4 3 oe 3 y 3 4 y 4 v cc 3 a 2 gnd
industrial temperature range IDT74ALVC16244A 3.3v cmos 16-bit buffer/driver with 3-state outputs 3 symbol parameter test conditions min. typ. (1) max. unit v ih input high voltage level v cc = 2.3v to 2.7v 1.7 ? ? v v cc = 2.7v to 3.6v 2 ? ? v il input low voltage level v cc = 2.3v to 2.7v ? ? 0.7 v v cc = 2.7v to 3.6v ? ? 0.8 i ih input high current v cc = 3.6v v i = v cc ?? 5a i il input low current v cc = 3.6v v i = gnd ? ? 5a i ozh high impedance output current v cc = 3.6v v o = v cc ?? 10 a i ozl (3-state output pins) v o = gnd ? ? 10 v ik clamp diode voltage v cc = 2.3v, i in = ?18ma ? ?0.7 ?1.2 v v h input hysteresis v cc = 3.3v ? 100 ? mv i ccl quiescent power supply current v cc = 3.6v ? 0.1 40 a i cch v in = gnd or v cc i ccz i cc quiescent power supply current one input at v cc - 0.6v, other inputs at v cc or gnd ? ? 750 a variation dc electrical characteristics over operating range following conditions apply unless otherwise specified: operating condition: t a = ?40c to +85c note: 1. typical values are at v cc = 3.3v, +25c ambient. note: 1. v ih and v il must be within the min. or max. range shown in the dc electrical characteristics over operating range table for the appropriat e v cc range. t a = ? 40c to + 85c. output drive characteristics symbol parameter test conditions (1) min. max. unit v oh output high voltage v cc = 2.3v to 3.6v i oh = ? 0.1ma v cc ? 0.2 ? v v cc = 2.3v i oh = ? 6ma 2 ? v cc = 2.3v i oh = ? 12ma 1.7 ? v cc = 2.7v 2.2 ? v cc = 3v 2.4 ? v cc = 3v i oh = ? 24ma 2 ? v ol output low voltage v cc = 2.3v to 3.6v i ol = 0.1ma ? 0.2 v v cc = 2.3v i ol = 6ma ? 0.4 i ol = 12ma ? 0.7 v cc = 2.7v i ol = 12ma ? 0.4 v cc = 3v i ol = 24ma ? 0.55
industrial temperature range 4 IDT74ALVC16244A 3.3v cmos 16-bit buffer/driver with 3-state outputs switching characteristics (1) v cc = 2.5v 0.2v v cc = 2.7v v cc = 3.3v 0.3v symbol parameter min. max. min. max. min. max. unit t plh propagation delay 1 4.4 ? 4 1 3.6 ns t phl xa to xbx t pzh output enable time 1 6.3 ? 615ns t pzl oe to xbx t phz output disable time 1 5.8 ? 5.2 1 5 ns t plz oe to xbx t sk( o ) output skew (2) ? ???? 500 ps notes: 1. see test circuits and waveforms. t a = ? 40c to + 85c. 2. skew between any two outputs of the same package and switching in the same direction. operating characteristics, t a = 25c v cc = 2.5v 0.2v v cc = 3.3v 0.3v symbol parameter test conditions typical typical unit c pd power dissipation capacitance outputs enabled c l = 0pf, f = 10mhz 16 19 pf c pd power dissipation capacitance outputs disabled 4 5
industrial temperature range IDT74ALVC16244A 3.3v cmos 16-bit buffer/driver with 3-state outputs 5 open v load gnd v cc pulse generator d.u.t. 500 500 c l r t v in v out (1, 2) alvc link input v ih 0v v oh v ol t plh1 t sk (x) output 1 output 2 t phl1 t sk (x) t plh2 t phl2 v t v t v oh v t v ol t sk (x) = t plh2 - t plh1 or t phl2 - t phl1 alvc link same phase input transition opposite phase input transition 0v 0v v oh v ol t plh t phl t phl t plh output v ih v t v t v ih v t alvc link data input 0v 0v 0v 0v t rem timing input synchronous control t su t h t su t h v ih v t v ih v t v ih v t v ih v t alvc link asynchronous control low-high-low pulse high-low-high pulse v t t w v t alvc link control input t plz 0v output normally low t pzh 0v switch closed output normally high enable disable switch open t phz 0v v ol + v lz v oh v t v t t pzl v load/2 v load/2 v ih v t v ol v oh - v hz alvc link test circuits and waveforms propagation delay test circuit for all outputs enable and disable times set-up, hold, and release times notes: 1. for t sk (o) output1 and output2 are any two outputs. 2. for t sk (b) output1 and output2 are in the same bank. definitions: c l = load capacitance: includes jig and probe capacitance. r t = termination resistance: should be equal to z out of the pulse generator. notes: 1. pulse generator for all pulses: rate 1.0mhz; t f 2.5ns; t r 2.5ns. 2. pulse generator for all pulses: rate 1.0mhz; t f 2ns; t r 2ns. output skew - t sk ( x ) pulse width note: 1. diagram shown for input control enable-low and input control disable-high. symbol v cc (1) = 3.3v0.3v v cc (1) = 2.7v v cc (2) = 2.5v0.2v unit v load 6 6 2 x vcc v v ih 2.7 2.7 vcc v v t 1.5 1.5 vcc / 2 v v lz 300 300 150 mv v hz 300 300 150 mv c l 50 50 30 pf test conditions switch position test switch open drain disable low v load enable low disable high gnd enable high all other tests open
industrial temperature range 6 IDT74ALVC16244A 3.3v cmos 16-bit buffer/driver with 3-state outputs ordering information xx alvc xxx xx package device type temp. range pag 16 74 green - thin shrink small outline package 16-bit buffer/driver with 3-state outputs ? 40c to +85c xxx family bus-hold 244a no bus-hold double-density, 24ma blank corporate headquarters for sales: for tech support: 6024 silver creek valley road 800-345-7015 or 408-284-8200 logichelp@idt.com san jose, ca 95138 fax: 408-284-2775 www.idt.com
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