industrial temperature range idt74alvc162244 3.3v cmos 16-bit buffer/driver with 3-state outputs 1 may 2006 industrial temperature range the idt logo is a registered trademark of integrated device technology, inc. ? 2006 integrated device technology, inc. dsc-4560/5 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 idt74alvc162244 3.3v cmos 16-bit buffer/driver with 3-state outputs description: this 16-bit buffer/driver is built using advanced dual metal cmos technology. the alvc162244 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 alvc162244 has series resistors in the device output structure which will significantly reduce line noise when used with light loads. this driver has been designed to drive 12ma at the designated threshold levels. applications: ? 3.3v high speed systems ? 3.3v and lower voltage computing systems 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 drive features: ? balanced output drivers: 12ma ? low switching noise
industrial temperature range 2 idt74alvc162244 3.3v cmos 16-bit buffer/driver with 3-state outputs tssop top view pin configuration note: 1. h = high voltage level x = don?t care l = low voltage level z = high-impedance inputs outputs x oe xax xyx lhh lll hxz function table (each 4-bit buffer) (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 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 . 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 idt74alvc162244 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. 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 = ? 4ma 1.9 ? i oh = ? 6ma 1.7 ? v cc = 2.7v i oh = ? 4ma 2.2 ? i oh = ? 8ma 2 ? v cc = 3v i oh = ? 6ma 2.4 ? i oh = ? 12ma 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 = 4ma ? 0.4 i ol = 6ma ? 0.55 v cc = 2.7v i ol = 4ma ? 0.4 i ol = 8ma ? 0.6 v cc = 3v i ol = 6ma ? 0.55 i ol = 12ma ? 0.8 note: 1. typical values are at v cc = 3.3v, +25c ambient.
industrial temperature range 4 idt74alvc162244 3.3v cmos 16-bit buffer/driver with 3-state outputs 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 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 4.9 ? 4.7 1 4.2 ns t phl xax to xyx t pzh output enable time 1 6.8 ? 6.7 1 5.6 ns t pzl x oe to xyx t phz output disable time 1 6.3 ? 5.7 1 5.5 ns t plz x oe to xyx 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.
industrial temperature range idt74alvc162244 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 idt74alvc162244 3.3v cmos 16-bit buffer/driver with 3-state outputs ordering information idt xx alvc xxx xx package device type temp. range pa pag 162 74 thin shrink small outline package tssop - green 16-bit buffer/driver with 3-state outputs ? 40c to +85c xxx family bus-hold 244 no bus-hold double-density with resistors, 12ma 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
|
