industrial temperature range idt74alvch162245 3.3v cmos 16-bit bus transceiver with 3-state outputs 1 august 2016 industrial temperature range idt and the idt logo are registered trademarks of integrated device technology, inc. ? 2016 integrated device technology, inc. dsc-4748/6 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 idt74alvch162245 3.3v cmos 16-bit bus transciever with 3-state outputs and bus-hold description: this 16-bit bus transceiver is built using advanced dual metal cmos technology. the alvch162245 is designed for asynchronous com- munication between data buses. the control-function implementation minimizes external timing requirements. this device can be used as two 8-bit transceivers or one 16-bit transceiver. it allows data transmission from the a bus to the b bus or from the b bus to the a bus, depending on the logic level at the direction-control (dir) input. the output-enable ( oe ) input can be used to disable the device so that the buses are effectively isolated. the alvch162245 has series resistors in the device out-put struc- ture of the ?a? port which will significantly reduce line noise when used with light loads. this driver has been designed to drive 12ma at the designated threshold levels. the ?b? port has a 24ma driver. the alvch162245 has ?bus-hold? which retains the inputs? last state whenever the input bus goes to a high impedance. this prevents floating inputs and eliminates the need for pull-up/down resistors. applications: ? 3.3v high speed systems ? 3.3v and lower voltage computing systems drive features: ? balanced output drivers: 12ma (a port) ? high output drivers: 24ma (b port) 1 dir 1 a 1 1 a 2 1 a 3 1 a 4 1 a 5 1 a 6 1 a 7 1 a 8 1 b 8 1 b 7 1 b 6 1 b 5 1 b 4 1 b 3 1 b 2 1 b 1 1 oe 2 dir 2 a 1 2 a 2 2 a 3 2 a 4 2 a 5 2 a 6 2 a 7 2 a 8 2 b 8 2 b 7 2 b 6 2 b 5 2 b 4 2 b 3 2 b 2 2 b 1 2 oe 1 47 46 44 43 41 40 38 37 12 11 9 8 6 5 3 2 48 24 36 35 33 32 30 29 27 26 23 22 20 19 17 16 14 13 25
industrial temperature range 2 idt74alvch162245 3.3v cmos 16-bit bus transceiver with 3-state outputs tssop top view pin configuration 1 dir 1 b 1 gnd v cc gnd 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 1 b 2 1 b 3 1 b 4 1 b 5 1 b 6 1 b 7 1 b 8 2 b 1 2 b 2 gnd 2 b 3 2 b 4 2 b 6 2 b 5 v cc gnd 2 b 8 2 b 7 2 dir 1 oe 1 a 1 gnd v cc gnd 1 a 2 1 a 3 1 a 4 1 a 5 1 a 6 1 a 7 1 a 8 2 a 1 2 a 2 gnd 2 a 3 2 a 4 2 a 6 2 a 5 v cc gnd 2 a 8 2 a 7 2 oe 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 i/o i/o port capacitance v in = 0v 7 9 pf 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. these pins have "bus-hold". all other pins are standard inputs, outputs, or i/os. capacitance (t a = +25c, f = 1.0mhz) pin names description x oe output enable inputs (active low) dir direction control inputs xax (1) side a inputs or 3-state outputs xbx (1) side b inputs or 3-state outputs pin description note: 1. h = high voltage level l = low voltage level x = don?t care inputs x oe xdir outputs l l b data to a bus l h a data to b bus h x isolation function table (each 8-bit section) (1)
industrial temperature range idt74alvch162245 3.3v cmos 16-bit bus transceiver 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 ?? 5 a i il input low current v cc = 3.6v v i = gnd ? ? 5 a 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. bus-hold characteristics symbol parameter (1) test conditions min. typ. (2) max. unit i bhh bus-hold input sustain current v cc = 3v v i = 2v ? 75 ? ? a i bhl v i = 0.8v 75 ? ? i bhh bus-hold input sustain current v cc = 2.3v v i = 1.7v ? 45 ? ? a i bhl v i = 0.7v 45 ? ? i bhho bus-hold input overdrive current v cc = 3.6v v i = 0 to 3.6v ? ? 500 a i bhlo notes: 1. pins with bus-hold are identified in the pin description. 2. typical values are at v cc = 3.3v, +25c ambient.
industrial temperature range 4 idt74alvch162245 3.3v cmos 16-bit bus transceiver 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 23 30 pf c pd power dissipation capacitance outputs disabled 4 5 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 (b port) 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 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 (a port) 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
industrial temperature range idt74alvch162245 3.3v cmos 16-bit bus transceiver with 3-state outputs 5 switching characteristics (a port) (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 xbx to xax t pzh output enable time 1 6.8 ? 6.7 1 5.6 ns t pzl x oe to xax t phz output disable time 1 6.3 ? 5.7 1 5.5 ns t plz x oe to xax 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. switching characteristics (b port) (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 3.7 ? 3.6 1 3 ns t phl xax to xbx t pzh output enable time 1 5.7 ? 5.4 1 4.4 ns t pzl x oe to xbx t phz output disable time 1 5.2 ? 4.6 1 4.1 ns t plz x 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.
industrial temperature range 6 idt74alvch162245 3.3v cmos 16-bit bus transceiver with 3-state outputs 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 lz v oh v t v t t pzl v load/2 v load/2 v ih v t v ol 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 idt74alvch162245 3.3v cmos 16-bit bus transceiver with 3-state outputs 7 ordering information xx alvc xxx xx package device type temp. range pag 162 74 thin shrink small outline package - green 16-bit bus transceiver with 3-state outputs -40c to +85c xxx family bus-hold 245 bus-hold double-density with resistors, 12ma (a port) 24ma (b port) h blank 8 tube tape and reel x 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 datasheet document history 08/19/2016 pg. 7 updated the ordering information by adding tape and reel.
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