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1 www.pericom.com p-0.1 04/16/10 pi74avc164245 pi74avc164245a block diagram pin confguration (28-pin tqfn) description pericom semiconductors pi74avc164245, a 16-bit (dual-octal) noninverting bus transceiver, contains two separate supply rails: b port (v ccb ), set at 3.3v, and a port (v cca ), set to operate at 1.2-2.5v. this arrangement permits translation from a 1.2-2.5v to 3.3v environment and vice versa. the pi74avc164245 is designed for asynchronous communication between data buses. to ensure the high impedance state during power up or power down, the output-enable (oe) input should be tied to v cc through a pullup resistor: the minimum value of the resistor is determined by the current-sinking capability of the driver. features ? pi74avc164245 is designed for low voltage operation: 1.2v - 2.5v to 3.3v ? industrial operation at C40c to +85c ? ? packaging (pb-free & green available): C 4 8-pin plastic 300-mil ssop (v) C 48-pin plastic 240-mil tssop (a) C 48-pin plastic 173-mil tvsop (k) 16-bit 1.2-2.5v to 3.3v level shifting transceiver with 3-state outputs 1dir 1oe 1b1 1 47 1a1 to seven other channels 2dir 2oe 2b1 24 25 13 2 48 36 2a1 to seven other channels 1 2 3 4 5 6 7 8 9 48 10 47 11 46 12 45 13 44 14 43 15 42 16 41 17 40 18 39 19 38 20 37 21 36 22 35 23 34 24 33 32 31 30 29 28 27 26 25 (3.3v lvttl) 1dir 1oe (3.3v lvttl) 1b1 1b2 gnd 1b3 1b4 (3.3v) v ccb 1b5 1b6 gnd 1b7 1b8 2b1 2b2 2b3 2b4 (3.3v) v ccb 2b5 2b6 gnd 2b7 2b8 (3.3v lvttl) 2dir gnd 1a1 1a2 gnd 1a3 1a4 v cca (1.8v-2.5v) 1a5 1a6 gnd 1a7 1a8 2a1 2a2 2a3 2a4 v cca (1.8v-2.5v) 2a5 2a6 gnd 2a7 2a8 2oe (3.3v lvttl) gnd truth table (each 8-bit section) inputs operation oe dir l l l h h x b data to a bus a data to b bus isolation 10-0148
2 www.pericom.com p-0.1 04/16/10 pi74avc164245 16-bit 1.2-2.5v to 3.3v level shifting transceiver with 3-state outputs note: stresses greater than those listed under 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 specifcation is not implied. exposure to absolute maximum rating conditions for extended periods may affect reliability. maximum ratings (absolute maximum ratings over operating free-air temperature range from v ccb at 3.3v & v cca at 1.5 - 2.5v, unless otherwise supply voltage range v cca ....................... C0.5v to 3.8v v ccb ....................... C0.5v to 4.6v input voltage range, v i except i/o ports (1) . C0.5v to 4.6v i/o port a (2) .. C0.5v to v cca +0.5v i/o port b (1) .. C0.5v to v ccb +0.5v input clamp current i ik (v 1 <0) ................................ C50ma ouput clamp current i ok (v o <0) ............................. C50ma continuous output current, i o ........................................ 50ma continuous current through each v cc or gnd ........... 100ma package thermal impedance, 0 ja (3) : a package ............. 89c/w k package ............................ 58c/w v package ............................ 94c/w storage temperature range, t stg ...................... C65c to 150c recommended operating conditions for v ccb at 3.3v (4) min. max. units v ccb supply voltage 3.0 3.6 v v ih high-level voltage 2 v il low-level voltage 0.8 v ib input voltage 0 v ccb v ob output voltage 0 v ccb i oh high-level output current C12 ma i ol low-level output current 12 dt/d v input transition rise or fall rate 10 ns/v t a operating free-air temperature C40 85 c 10-0148
3 www.pericom.com p-0.1 04/16/10 pi74avc164245 16-bit 1.2-2.5v to 3.3v level shifting transceiver with 3-state outputs recommended operating conditions for v cca at 2.5v (4) min. max. units v cca supply voltage 2.3 2.7 v v ih high-level voltage v cca = 2.3v to 2.7v 1.7 v il low-level voltage v cca = 2.3v to 2.7v 0.7 v ia input voltage 0 v cca v oa output voltage 0 v cca i oh high-level output current v cca = 2.3v -8 ma v cca = 2.7v C12 i ol low-level output current v cca = 2.3v 8 v cca = 2.7v 12 d t/ d v input transition rise or fall rate 10 ns/v t a operating free-air temperature C40 85 c notes: 1. this value is limited to 4.6v maximum. 2. this value is limited to 3.8v maximum. 3. the package thermal impedance is calculated in accordance with jesd 51. 4. t o ensure proper device operation, all unused device inputs must be held at the associated v cc or gnd. recommended operating conditions for v cca at 1.8v (4) min. max. units v cca supply voltage 1.65 1.95 v v ih high-level voltage v cca = 1.65v to 1.95v 0.65 x v cca v il low-level voltage v cca = 1.65v to 1.95v 0.35 x v cca v ib input voltage 0 v cca v oa output voltage 0 v cca i oh high-level output current v cca = 1.65v -4 ma v cca = 1.95v C8 i ol low-level output current v cca = 1.65v 4 v cca = 1.95v 8 d t/ d v input transition rise or fall rate 10 ns/v t a operating free-air temperature C40 85 c notes: 1. to ensure proper device operation, all unused device inputs must be held at the associated vcc or gnd. 10-0148
4 www.pericom.com p-0.1 04/16/10 pi74avc164245 16-bit 1.2-2.5v to 3.3v level shifting transceiver with 3-state outputs electrical characteristics ( v ccb ) (over recommended operating free-air temperature range for v ccb = 3.3v) parameter test conditions v ccb min. typ. max. units v oh (a to b) i oh = C100ma 3.0v 2.8 v 3.6v 3.4 i oh = C12m a 3.0v 2.2 3.6v 2.8 v ol (a to b) i ol = C100ma 3.0v 0.2 3.6v 0.2 i ol = C12m a 3.0v 0.5 3.6v 0.5 i i control inputs v i = v ccb or gnd 3.6v 5 a i oz ? a or b ports v o = v ccb or gnd 3.6v 10 i cc v i = v ccb or gnd, i o = 0 3.6v 20 di cc * one input at v ccb C0.6v, other inputs at v ccb or gnd 3.0v to 3.6v 500 c i control inputs v i = v ccb or gnd 3.3v 4.5 pf c io a or b ports v o = v ccb or gnd 3.3v 6.5 notes: ? t ypical values are measured at v cc = 3.3v, t a = 25c ? f or i/o ports, the parameter i oz includes the input leakage current. * this is the increase in supply current for each input that is at one of the specifed ttl voltage levels rather than at 0 or the associated v cc . 10-0148
5 www.pericom.com p-0.1 04/16/10 pi74avc164245 16-bit 1.2-2.5v to 3.3v level shifting transceiver with 3-state outputs electrical characteristics ( v cca ) (over recommended operating free-air temperature range for v cca = 2.5v) parameter test conditions v cca min. typ. ? max. units v oh (b to a) i oh = C100ma 2.3v to 2.7v v cc - 0.1 v 2.3v 1.7 i oh = C8m a 2.7v 2.0 i oh = C12m a 2.7v 1.8 v ol (b to a) i ol = C100ma 2.3v to 2.7v 0.2 i ol = C8m a 2.3v 0.4 i ol = C12m a 2.7v 0.5 i i control inputs v i = v cca or gnd 2.7v 5 a i oz ? a or b ports v o = v ccb or gnd 2.7v 10 i cc v i = v cca or gnd, i o = 0 2.7v 30 di cc * one input at v cca C0.6v, other inputs at v cca or gnd 2.3v to 2.7v 500 c i control inputs v i = v cca or gnd 2.5v 4.5 pf c io a or b ports v o = v cca or gnd 2.5v 6.5 notes: ? t ypical values are measured at v cc = 3.3v, t a = 25c ? f or i/o ports, the parameter i oz includes the input leakage current. * this is the increase in supply current for each input that is at one of the specifed ttl voltage levels rather than at 0 or the associated v cc . 10-0148
6 www.pericom.com p-0.1 04/16/10 pi74avc164245 16-bit 1.2-2.5v to 3.3v level shifting transceiver with 3-state outputs electrical characteristics ( v cca ) (over recommended operating free-air temperature range for v cca = 1.8v) parameter test conditions v cca min. typ. ** max. units v oh (b to a) i oh = C100ma 1.65v to 1.95v v cc - 0.1 v i oh = C4m a 1.65v 1.3 1.95v 1.4 i oh = C8m a 1.95v 1.3 v ol (b to a) i ol = 100ma 1.65v 0.2 i ol = 4m a 1.95v 0.3 i ol = 8m a 1.95v 0.4 i oz *** a or b ports v o = v cca or gnd 1.95v 5 a i cc v i = v cca or gnd, i o = 0 1.95v 20 di cc * one input at v cca C 6v, other inputs at v cca or gnd 1.65v to 1.95v 300 c i control inputs v i = v cca or gnd 1.8v 4.5 pf c io a or b ports v o = v cca or gnd 1.8v 6.5 notes: * the increase in supply current for each input at one of the specifed ttl voltage levels rather than at the associated v cc . ** t ypical values are measured at v cc = 2.5v or 1.8v, t a = 25c *** for i/o ports, the parameter i oz includes the input leakage current. 10-0148
7 www.pericom.com p-0.1 04/16/10 pi74avc164245 16-bit 1.2-2.5v to 3.3v level shifting transceiver with 3-state outputs recommended operating conditions for v cca at 1.2v min. typ. max. units v cca supply voltage 1.2v v v ih high-level voltage v cca = 1.2v 0.65 x v cca v il low-level voltage v cca = 1.2v 0.35 x v cca v ib input voltage 0 v cca v oa output voltage 0 v cca i oh high-level output current v cca = 1.2v -2 ma i ol low-level output current v cca = 1.2v 2 d t/ d v input transition rise or fall rate 10 ns/v t a operating free-air temperature C40 85 c notes: 1. to ensure proper device operation, all unused device inputs must be held at the associated v cc or gnd. electrical characteristics ( v cca ) (over recommended operating free-air temperature range for v cca = 1.2v) parameter test conditions v cca min. typ. max. units v oh (b to a) i oh = C2m a 1.2v 1.1v v ol (b to a) i ol = 100ma 1.2v 0.1 i ol = 2m a 1.2v 0.1 i oz ** a or b ports v o = v cca or gnd 1.2v 5 a i cc v i = v cca or gnd, i o = 0 1.2v 10 c i control inputs v i = v cca or gnd 1.2v 4.5 pf c io a or b ports v o = v cca or gnd 1.2v 6.5 notes: * the increase in supply current for each input at one of the specifed ttl voltage levels rather than at the associated v cc . ** for i/o ports, the parameter i oz includes the input leakage current. 10-0148
8 www.pericom.com p-0.1 04/16/10 pi74avc164245 16-bit 1.2-2.5v to 3.3v level shifting transceiver with 3-state outputs operating conditions for t a = 25 oc parameters test conditions v cca = 2.5v v ccb = 3.3v units typical c pd power dissipation capacitance outputs enabled (a or b) c l = 30pf 56 pf outputs disabled f = 10mhz 6 switching characteristics (c l = see figures 1,2,3) parameter from (input) to (output) pi74avc164245 pi74avc164245a units v cca = 3.3v 0.3v v cca = 3.3v 0.3v v cca = 1.8v 0.15v v cca = 2.5v 0.2v v cca = 1.2v v cca = 1.8v 0.15v v cca = 2.5v 0.2v min. max. min. max. typ. min. max. min. max. t pd a b 1.5 4.6 1.5 4.2 3.5 1.5 3.5 1.0 3.0 ns b a 1.5 4.4 1.5 4.0 3.0 1.5 3.5 1.0 2.8 t en oe b 1.7 5.5 1.7 4.5 2.8 1.7 4.5 1.2 3.5 t dis oe b 1.5 5.5 1.5 4.5 2.2 1.5 4.5 1.0 3.5 t en oe a 1.7 5.5 1.7 4.5 4.2 1.7 4.5 1.2 3.5 t dis oe a 2.0 5.5 2.0 4.5 3.3 2.0 4.5 1.5 3.5 t sk(o) (1) 0.5 0.3 t sk(b) (1) 0.3 0.25 notes: 1. t his is the skew between any two outputs of the same package, and switching in the same direction. for t sk(o) , output 1 and output 2 are any two outputs. for t sk(b) , output 1 and output 2 are on the same bank. 10-0148
9 www.pericom.com p-0.1 04/16/10 pi74avc164245 16-bit 1.2-2.5v to 3.3v level shifting transceiver with 3-state outputs figure 1. load circuit and voltage waveforms parameter measurement information, v cco = 1.2v output control (low-level enabling) output waveform 2 s1 at gnd t pzl t plz v cc i 0v v cc o v ol 0v output waveform 1 s1 at 2xv cco v oh v oh ? 0.1v v ol + 0.1v t phz t pzh v cc o/2 v cc o/2 v cc i /2 v cc i /2 from output under test v in c l = 15pf 2 v cc gnd open 2000 2000 input t plh t phl v cc i v cc i/2 v cc o/2 v cc i /2 v cc o/2 0v v oh v ol output notes: c l includes probe and jig capacitance. waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. a ll input pulses are supplied by generators having the following characteristics: prr 10mz, z o = 50 ? t r ns, t f 2.5ns. t he outputs are measured one at a time with one transition per measurement. t plz and t phz are the same as t dis. t pzl and t pzh are the same as t en . t plh and t phl are the same as t pd . test s1 t pd t plz/ t pzl t phz/ t pzh open 2 x v cco gnd voltage waveforms enable and disable times 10-0148
10 www.pericom.com p-0.1 04/16/10 pi74avc164245 16-bit 1.2-2.5v to 3.3v level shifting transceiver with 3-state outputs figure 1. load circuit and voltage waveforms parameter measurement information, v cco = 1.8v 0.15v notes: c l includes probe and jig capacitance. waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. a ll input pulses are supplied by generators having the following characteristics: prr 10mz, z o = 50 ? , t r 2.5 ns, t f 2.5ns. t he outputs are measured one at a time with one transition per measurement. t plz and t phz are the same as t dis. t pzl and t pzh are the same as t en . t plh and t phl are the same as t pd . output control (low-level enabling) output waveform 2 s1 at gnd t pzl t plz v cci 0v v cco v ol 0v output waveform 1 s1 at 2xv cco v oh v oh ? 0.15v v ol + 0.15v t phz t pzh v cco/2 v cco/2 v cci/2 v cci/2 from output under test v in c l = 30pf 2 v cc gnd open 1000 1000 input t plh t phl v cci v cci/2 v cco/2 v cci/2 v cco/2 0v v oh v ol output voltage waveforms enable and disable times test s1 t pd t plz/ t pzl t phz/ t pzh open 2 x v cco gnd 10-0148
11 www.pericom.com p-0.1 04/16/10 pi74avc164245 16-bit 1.2-2.5v to 3.3v level shifting transceiver with 3-state outputs figure 1. load circuit and voltage waveforms parameter measurement information, v cco = 2.5v 0.2v notes: c l includes probe and jig capacitance. waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. a ll input pulses are supplied by generators having the following characteristics: prr 10mz, z o = 50 ? , t r 2.5 ns, t f 2.5ns. t he outputs are measured one at a time with one transition per measurement. t plz and t phz are the same as t dis. t pzl and t pzh are the same as t en . t plh and t phl are the same as t pd . voltage waveforms enable and disable times test s1 t pd t plz/ t pzl t phz/ t pzh open 2 x v cco gnd output control (low-level enabling) output waveform 2 s1 at gnd t pzl t plz v cci 0v v cco v ol 0v output waveform 1 s1 at 6v v oh v oh ? 0.2v v ol +0.2v t phz t pzh v cci/2 v cci/2 v cco/2 v cco/2 from output under test v in c l = 30pf 2 v cc gnd open 500 500 input t plh t phl v cci v cci/2 v cco/2 v cci/2 v cco/2 0v v oh v ol output 10-0148
12 www.pericom.com p-0.1 04/16/10 pi74avc164245 16-bit 1.2-2.5v to 3.3v level shifting transceiver with 3-state outputs figure 1. load circuit and voltage waveforms parameter measurement information, v cco = 3.3v 0.3v notes: c l includes probe and jig capacitance. waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. a ll input pulses are supplied by generators having the following characteristics: prr 10mz, z o = 50 ? , t r 2.5 ns, t f 2.5ns. t he outputs are measured one at a time with one transition per measurement. t plz and t phz are the same as t dis. t pzl and t pzh are the same as t en . t plh and t phl are the same as t pd . voltage waveforms enable and disable times test s1 t pd t plz/ t pzl t phz/ t pzh open 2 x v cco gnd output control (low-level enabling) output waveform 2 s1 at gnd t pzl t plz v cci v cci 0v v ol 0v output waveform 1 s1 2 x v cco v oh v oh ?0.3v v ol +0.3v t phz t pzh v cci /2 v cci /2 v cco /2 v cco /2 from output under test v in c l = 30pf 6v gnd open 500 500 input t plh t phl v cci /2 v cci /2 v cca v cco /2 v cco /2 0v v oh v ol output s1 10-0148
13 www.pericom.com p-0.1 04/16/10 pi74avc164245 16-bit 1.2-2.5v to 3.3v level shifting transceiver with 3-state outputs pericom semiconductor corporation ? 1-800-435-2336 packaging mechanical: 48-pin tssop (a) 1 .236 .244 .488 .496 .002 .006 seating plane .007 .010 .0197 bsc .004 .008 .319 1 48 12.4 12.6 6.0 6.2 0.50 0.17 0.27 8.1 0.05 0.15 0.09 0.20 x.xx x.xx denotes dimensions in millimeters .018 .030 0.45 0.75 .047 1.20 max bsc document control no. pd - 1501 revision: g date: 03/09/05 note: 1. controlling dimensions in millimeters. 2. ref: jedec mo-153f/ed 3. dimension does not include mold ? ash, protrusions or gate burrs. mold ? ash, protru- sions and gate burrs shall not exceed 0.15mm per side. 4. dimension does not include interlead ? ash or protrusion. interlead ? ash or protrusion shall not exceed 0.25mm per side. description: 48-pin 240-mil wide tssop package code: a pericom semiconductor corporation 3545 n. 1st street, san jose, ca 95134 1-800-435-2335 ? www.pericom.com see note 3 see note 4 10-0148
14 www.pericom.com p-0.1 04/16/10 pi74avc164245 16-bit 1.2-2.5v to 3.3v level shifting transceiver with 3-state outputs packaging mechanical: 48-pin tssop (v) 1 0.20 0.51 1.01 0.25 0.381 0.635 .008 .008 .016 0-8? 0.20 0.40 .110 2.79 .010 gauge plane .02 .04 .015 .025 x 45? .025 bsc 0.635 .291 .299 x.xx x.xx denotes dimensions in millimeters 7.39 7.59 .395 .420 10.03 10.67 .620 .630 15.75 16.00 .008 .0135 0.20 0.34 1 48 nom. max description: 48-pin, 300-mil wide, ssop package code: v document control no. pd - 1401 revision: e date: 03/09/05 notes: 1) controlling dimensions in inches. 2) ref: jedec mo-118b/aa pericom semiconductor corporation 3545 n. 1st street, san jose, ca 95134 1-800-435-2335 ? www.pericom.com 10-0148
15 www.pericom.com p-0.1 04/16/10 pi74avc164245 16-bit 1.2-2.5v to 3.3v level shifting transceiver with 3-state outputs ordering information ordering code package code speed grade package description pi74avc164245ve v blank pb-free & green, 48-pin 300-mil wide plastic ssop p i74avc164245ae a blank pb-free & green, 48-pin 240-mil wide plastic tssop p i74avc164245ke k blank pb-free & green, 48-pin 173-mil wide plastic tvsop p i74avc164245ave v a pb-free & green, 48-pin 300-mil wide plastic ssop p i74avc164245aae a a pb-free & green, 48-pin 240-mil wide plastic tssop packaging mechanical: 48-pin tssop (k) 1 : 48-pin, 173mil wide tvsop (tssop) noitpircsed :edoc egakcap 1324-dp :# lortnoc tnemucod d :noisiver 80/92/80 :etad k48 08-0442 notes: 1. thermal characteristics can be found on the company web site at www.pericom.com/packaging/ 2. e = pb-free and green 3. x suffx =tape/reel 10-0148

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