industrial temperature range idt74alvc164245 16-bit 3.3v to 5v level shifting transceiver 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-4477/9 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 cca = 2.7v to 3.6v ?v ccb = 5v 0.5v ? cmos power levels (0.4 w typ. static) ? rail-to-rail output swing for increased noise margin ? available in ssop and tssop packages functional block diagram drive features: ? high output drivers: 24ma ? suitable for heavy loads applications: ? mixed 3.3v and 5v high speed systems ? 5v pci interface to 3.3v pc bus structures ? telecommunication legacy systems with transitions from 5v to 3.3v idt74alvc164245 cmos 16-bit 3.3v to 5v level shifting transceiver with 3-state outputs description: this 16-bit 3.3v to 5v level shifting transceiver is manufactured using advanced dual metal cmos technology. the alvc164245 contains two separate supply rails; b port has v ccb , which is set at 5v, and a port has v cca , which is set to operate at 3.3v. this allows for translation from a 3.3v to 5v environment and vice-versa. this device is designed for asynchro- nous communication between data buses. the alvc164245 has been designed with a 24ma output driver. this driver is capable of driving a moderate to heavy load while maintaining speed performance. 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 3.3v port 5v port 3.3v port 5v port
industrial temperature range 2 idt74alvc164245 16-bit 3.3v to 5v level shifting transceiver with 3-state outputs ssop/ tssop top view pin configuration note: 1. as applicable to the device type. capacitance (t a = +25c, f = 1.0mhz, v cca = 3.3v) symbol description max unit v term (2) terminal voltage with respect to gnd ?0.5 to +6 v v term (3) terminal voltage with respect to gnd ?0.5 to +6 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 dir 1 b 1 gnd v ccb 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 ccb gnd 2 b 8 2 b 7 2 dir 1 oe 1 a 1 gnd v cca 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 cca gnd 2 a 8 2 a 7 2 oe (5v) (5v) (3.3v) (3.3v) note: 1. as applicable to the device type. capacitance (t a = +25c, f = 1.0mhz, v ccb = 5v) note: 1. h = high voltage level l = low voltage level x = don?t care z = high impedance function table (each 8-bit section) (1) inputs xoe xdir outputs l l bus b data to bus a l h bus a data to bus b h x high z state pin names description xoe (1) output enable inputs (active low) xdir (1) direction output controls x a x port a inputs or 3-state outputs x b x port b inputs or 3-state outputs pin description symbol parameter (1) conditions typ. max. unit c in a port input capacitance v in = 0v 6.5 ? pf c i/o a port i/o capacitance v in = 0v 8.5 ? pf symbol parameter (1) conditions typ. max. unit c in b port input capacitance v in = 0v 6.5 ? pf c i/o b port i/o capacitance v in = 0v 6.5 ? pf note: 1. all control inputs are powered off v cca .
industrial temperature range idt74alvc164245 16-bit 3.3v to 5v level shifting transceiver with 3-state outputs 3 dc electrical characteristics over operating range (b port) (1) following conditions apply unless otherwise specified: operating condition: t a = ?40c to +85c dc electrical characteristics over operating range (a port) (1,2) following conditions apply unless otherwise specified: operating condition: t a = ?40c to +85c symbol parameter test conditions min. typ. (2) max. unit v ih input high voltage level v ccb = 4.5v to 5.5v 2 ? ? v v il input low voltage level v ccb = 4.5v to 5.5v ? ? 0.8 v i ih input high current v ccb = 5.5v v i = v cc ?? 5a i il input low current v ccb = 5.5v v i = gnd ? ? 5a i ozh high impedance output current v ccb = 5.5v v o = v cc ?? 10 a i ozl (3-state output pins) v o = gnd ? ? 10 v h input hysteresis v ccb = 4.5v ? 100 ? mv i ccl quiescent power supply current v ccb = 5.5v ? 0.1 40 a i cch v in = gnd or v ccb i ccz i cc quiescent power supply current one input at 3.4v, other inputs at v ccb or gnd ? ? 750 a variation notes: 1. v cca = 2.7v to 3.6v. 2. typical values are at v cc = 5v, +25c ambient. symbol parameter test conditions min. typ. (3) max. unit v ih input high voltage level v cca = 2.7v to 3.6v 2 ? ? v v il input low voltage level v cca = 2.7v to 3.6v ? ? 0.8 v i ih input high current v cca = 3.6v v i = v cc ?? 5a i il input low current v cca = 3.6v v i = gnd ? ? 5a i ozh high impedance output current v cca = 3.6v v o = v cc ?? 10 a i ozl (3-state output pins) v o = gnd ? ? 10 v h input hysteresis v cca = 3.3v ? 100 ? mv i ccl quiescent power supply current v cca = 3.6v ? 0.1 40 a i cch v in = gnd or v cca i ccz i cc quiescent power supply current one input at v cca - 0.6v, other inputs at v cca or gnd ? ? 750 a variation notes: 1. v ccb = 5v 0.5v. 2. control inputs xdir, oe are supplied from v cca . 3. typical values are at v cc = 3.3v, +25c ambient.
industrial temperature range 4 idt74alvc164245 16-bit 3.3v to 5v level shifting transceiver with 3-state outputs 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; v cca = 3.3v 0.3v. output drive characteristics, v cca = 3.3v 0.3v (a port) symbol parameter test conditions (1) min. max. unit v oh output high voltage v cca = 2.7v to 3.6v i oh = ? 0.1ma v cca ? 0.2 ? v (b port to a port) v cca = 2.7v i oh = ? 12ma 2.2 ? v cca = 3v 2.4 ? v cca = 3v i oh = ? 24ma 2 ? v ol output low voltage v cca = 2.7v to 3.6v i ol = 0.1ma ? 0.2 v (b port to a port) v cca = 2.7v i ol = 12ma ? 0.4 v cca = 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; v ccb = 5v 0.5v. output drive characteristics, v ccb = 5v 0.5v (b port) symbol parameter test conditions (1) min. max. unit v oh output high voltage v ccb = 4.5v i oh = ? 0.1ma 4.3 ? v (a port to b port) v ccb = 5.5v 5.3 ? v ccb = 4.5v i oh = ? 24ma 3.7 ? v ccb = 5.5v 4.7 ? v ol output low voltage v ccb = 4.5v i ol = 0.1ma ? 0.2 v ((a port to b port) v ccb = 5.5v ? 0.2 v ccb = 4.5v i ol = 24ma ? 0.55 v ccb = 5.5v ? 0.55
industrial temperature range idt74alvc164245 16-bit 3.3v to 5v level shifting transceiver with 3-state outputs 5 switching characteristics (1) v ccb = 5v 0.5v v cca = 2.7v v cca = 3.3v 0.3v symbol parameter min. max. min. max. unit t plh propagation delay ? 5.9 1 5.8 ns t phl xax to xbx t plh propagation delay ? 6.7 1.2 5.8 ns t phl xbx to xax t pzh output enable time ? 9.3 1 8.9 ns t pzl xoe to xbx t pzh output enable time ? 10.2 2 9.1 ns t pzl xoe to xax t phz output disable time ? 9.2 2.1 9.4 ns t plz xoe to xbx t phz output disable time ? 9 2.9 8.6 ns t plz xoe to xax note: 1. see test circuits and waveforms. t a = ? 40c to + 85c. operating characteristics, t a = 25c v cca = 3.3v, v ccb = 5v symbol parameter test conditions typical unit c pd power dissipation capacitance, outputs enabled (a port or b port) c l = 0pf, f = 10mhz 56 pf c pd power dissipation capacitance, outputs disabled (a port or b port) 6
industrial temperature range 6 idt74alvc164245 16-bit 3.3v to 5v level shifting 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 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 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 propagation delay test circuit for all outputs enable and disable times definitions: c l = load capacitance: includes jig and probe capacitance. r t = termination resistance: should be equal to z out of the pulse generator. note: 1. pulse generator for all pulses: rate 1.0mhz; t f 2.5ns; t r 2.5ns. note: 1. diagram shown for input control enable-low and input control disable-high. symbol v cca = 3.3v0.3v v cca = 2.7v unit v load 66v v ih 33v v t 1.5 1.5 v v lz 300 300 mv v oh - v hz 300 300 mv c l 50 50 pf test conditions switch position test switch disable low v load enable low disable high gnd enable high all other tests open test circuits and waveforms for v cca = 3.3v 0.3v and v cca = 2.7v
industrial temperature range idt74alvc164245 16-bit 3.3v to 5v level shifting transceiver with 3-state outputs 7 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 ccb / 2 v ih v ccb / 2 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 ccb / 2 v ccb / 2 t pzl v load/2 v load/2 v ih v t v ol v hz propagation delay enable and disable 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. note: 1. diagram shown for input control enable-low and input control disable-high. symbol v ccb (1) = 5v0.2v unit v load 2 x v ccb v v ih 2.7 v v t 1.5 or v ccb / 2 v v lz 20% of v ccb mv v hz 80% of v ccb mv c l 50 pf test conditions (use v cca test circuit) note: 1. pulse generator for all pulses: rate 1.0mhz; t f 2.5ns; t r 2.5ns. test circuits and waveforms for v ccb = 5v 0.5v
industrial temperature range 8 idt74alvc164245 16-bit 3.3v to 5v level shifting transceiver with 3-state outputs ordering information xx alvc xxx xx package device type temp. range pvg pag 164 74 shrink small outline package - green thin shrink small outline package - green 16-bit 3.3v to 5v level shifting transceiver with 3-state outputs ? 40c to +85c xxx family bus-hold 245 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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