1 idt74fct163245a/c 3.3v cmos 16-bit bidirectional transceiver industrial temperature range september 2009 industrial temperature range the idt logo is a registered trademark of integrated device technology, inc. ? 2009 integrated device technology, inc. dsc-2554/13 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, or v cc = 2.7v to 3.6v, extended range ? cmos power levels (0.4 w typ. static) ? rail-to-rail output swing for increased noise margin ? low ground bounce (0.3v typ.) ? inputs (except i/o) can be driven by 3.3v or 5v components ? available in ssop, tssop, and tvsop packages functional block diagram idt74fct163245a/c 3.3v cmos 16-bit bidirectional transceiver description: the fct163245 16-bit transceivers are built using advanced dual metal cmos technology. these high-speed, low-power transceivers are ideal for asynchronous communication between two buses (a and b). the direction and output enable controls are designed to operate these devices as either two independent 8-bit transceivers or one 16-bit transceiver. the direction control pin (xdir) controls the direction of data flow. the output enable pin (x oe ) overrides the direction control and disables both ports. all inputs are designed with hysteresis for improved noise margin. 1 dir 1 oe 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 1 1 b 2 1 b 3 1 b 4 1 b 5 1 b 6 1 b 7 1 b 8 2 dir 2 oe 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 1 2 b 2 2 b 3 2 b 4 2 b 5 2 b 6 2 b 7 2 b 8 1 47 46 44 43 41 40 38 37 48 2 3 5 6 8 9 11 12 24 36 35 33 32 30 29 27 26 25 13 14 16 17 19 20 22 23
2 industrial temperature range idt74fct163245a/c 3.3v cmos 16-bit bidirectional transceiver pin configuration 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 7 v v term (4) 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 ?60 to +60 ma absolute maximum ratings (1) (1) (1) (1) (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. vcc terminals. 3. input terminals. 4. outputs and i/o terminals. symbol parameter (1) conditions typ. max. unit c in input capacitance v in = 0v 3.5 6 pf c out output capacitance v out = 0v 3.5 8 pf capacitance (t a = +25c, f = 1.0mhz) note: 1. this parameter is measured at characterization but not tested. ssop/ tssop/ tvsop top view pin description pin names description x oe output enable input (active low) xdir direction control input x a x side a inputs or 3-state outputs x b x side b inputs or 3-state outputs note: 1. h = high voltage level l = low voltage level x = don't care z = high-impedance function table (1) inputs x oe 1 xdir outputs l l bus b data to bus a l h bus a data to bus b h x high z state 1 dir 1 b 1 gnd 1 b 3 v cc gnd 2 b 2 gnd v cc gnd 1 b 2 1 b 4 1 b 5 1 b 6 1 b 7 1 b 8 2 b 1 2 b 3 2 b 4 2 b 5 2 b 7 2 b 8 2 b 6 2 dir 1 a 1 1 a 2 gnd 1 a 3 1 a 4 v cc 1 a 5 1 a 6 1 a 7 1 a 8 2 a 1 2 a 2 2 a 3 2 a 4 v cc 2 a 5 2 a 7 2 a 8 2 a 6 gnd gnd gnd 2 oe 1 oe 39 29 30 31 32 33 34 35 36 37 38 25 26 27 28 48 47 41 42 43 44 45 46 40 1 2 3 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 11 21 22 23 24
3 idt74fct163245a/c 3.3v cmos 16-bit bidirectional transceiver industrial temperature range symbol parameter test conditions (1) min. typ. (2) max. unit v ih input high level (input pins) guaranteed logic high level 2 ? 5.5 v input high level (i/o pins) 2 ? v cc +0.5 v il input low level (input and i/o pins) guaranteed logic low level ?0.5 ? 0.8 v i ih input high current (input pins) v cc = max. v i = 5.5v ? ? 1 input high current (i/o pins) v i = v cc ?? 1a i il input low current (input pins) v i = gnd ? ? 1 input low current (i/o pins) v i = gnd ? ? 1 i ozh high impedance output current v cc = max. v o = v cc ?? 1a i ozl (3-state output pins) v o = gnd ? ? 1 v ik clamp diode voltage v cc = min., i in = ?18ma ? ?0.7 ?1.2 v i odh output high current v cc = 3.3v, v in = v ih or v il, v o = 1.5v (3) ?36 ?60 ?110 ma i odl output low current v cc = 3.3v, v in = v ih or v il, v o = 1.5v (3) 50 90 200 ma v oh output high voltage v cc = min. i oh = ?0.1ma v cc -0.2 ? ? v in = v ih or v il i oh = ?3ma 2.4 3 ? v v cc = 3v i oh = ?8ma 2.4 (5) 3? v in = v ih or v il v ol output low voltage v cc = min. i ol = 0.1ma ? ? 0.2 v in = v ih or v il i ol = 16ma ? 0.2 0.4 i ol = 24ma ? 0.3 0.55 v v cc = 3v i ol = 24ma ? 0.3 0.5 v in = v ih or v il i os short circuit current (4) v cc = max., v o = gnd (3) ?60 ?135 ?240 ma v h input hysteresis ? ? 150 ? mv i ccl quiescent power supply current v cc = max. ? 0.1 10 a i cch v in = gnd or v cc i ccz dc electrical characteristics over operating range following conditions apply unless otherwise specified: industrial: t a = ?40c to +85c, v cc = 2.7v to 3.6v notes: 1. for conditions shown as min. or max., use appropriate value specified under electrical characteristics for the applicable dev ice type. 2. typical values are at v cc = 3.3v, +25c ambient. 3. not more than one output should be shorted at one time. duration of the test should not exceed one second. 4. this parameter is guaranteed but not tested. 5. v oh = v cc ?0.6v at rated current.
4 industrial temperature range idt74fct163245a/c 3.3v cmos 16-bit bidirectional transceiver symbol parameter test conditions (1) min. typ. (2) max. unit i cc quiescent power supply current v cc = max. ? 2 30 a ttl inputs high v in = v cc - 0.6v (3) i ccd dynamic power supply v cc = max. v in = v cc ? 50 75 a/ current (4) outputs open v in = gnd mhz x oe = xdir = gnd one input togging 50% duty cycle i c total power supply current (6) v cc = max.,outputs open v in = v cc ? 0.5 0.8 ma f i = 10mhz v in = gnd 50% duty cycle x oe = xdir = gnd v in = v cc - 0.6v ? 0.5 0.8 one bit toggling v in = gnd v cc = max.,outputs open v in = v cc ?23 (5) f i = 2.5mhz v in = gnd 50% duty cycle x oe = xdir = gnd v in = v cc - 0.6v ? 2 3.3 (5) sixteen bits toggling v in = gnd power supply characteristics notes: 1. for conditions shown as min. or max., use appropriate value specified under electrical characteristics for the applicable dev ice type. 2. typical values are at v cc = 3.3v, +25c ambient. 3. per ttl driven input. all other inputs at v cc or gnd. 4. this parameter is not directly testable, but is derived for use in total power supply calculations. 5. values for these conditions are examples of the i cc formula. these limits are guaranteed but not tested. 6. i c = i quiescent + i inputs + i dynamic i c = i cc + i cc d h n t + i ccd (f cp n cp /2 + fini) i cc = quiescent current (i ccl , i cch and i ccz ) i cc = power supply current for a ttl high input d h = duty cycle for ttl inputs high n t = number of ttl inputs at d h i ccd = dynamic current caused by an input transition pair (hlh or lhl) f cp = clock frequency for register devices (zero for non-register devices) n cp = number of clock inputs at f cp fi = input frequency ni = number of inputs at fi
5 idt74fct163245a/c 3.3v cmos 16-bit bidirectional transceiver industrial temperature range fct163245a fct163245c symbol parameter condition (2) min. (3) max. min. (3) max. unit t plh propagation delay c l = 50pf 1.5 4.6 1.5 4.1 ns t phl a to b, b to a r l = 500 t pzh output enable time 1.5 6.2 1.5 5.8 ns t pzl x oe to a or b t phz output disable time 1.5 5 1.5 4.8 ns t plz x oe to a or b t pzh output enable time 1.5 6.2 1.5 5.8 ns t pzl xdir to a or b (4) t phz output disable time 1.5 5 1.5 4.8 ns t plz xdir to a or b (4) t sk (o) output skew (5) ? 0.5 ? 0.5 ns switching characteristics over operating range (1) notes: 1. propagation delays and enable/disable times are with v cc = 3.3v 0.3v, normal range. for v cc = 2.7v to 3.6v, extended range, all propagation delays and enable/disable times should be degraded by 20%. 2. see test circuit and waveforms. 3. minimum limits are guaranteed but not tested on propagation delays. 4. this parameter is guaranteed but not tested. 5. skew between any two outputs, of the same package, switching in the same direction. this parameter is guaranteed by design.
6 industrial temperature range idt74fct163245a/c 3.3v cmos 16-bit bidirectional transceiver pulse generator r t d.u.t. v cc v in c l v out 50pf 500 500 open gnd 6v 3v 1.5v 0v 3v 1.5v 0v 3v 1.5v 0v 3v 1.5v 0v data input timing input asynchronous control preset clear etc. synchronous control t su t h t rem t su t h preset clear clock enable etc. high-low-high pulse low-high-low pulse t w 1.5v 1.5v same phase input transition 3v 1.5v 0v 1.5v v oh t plh output opposite phase input transition 3v 1.5v 0v t plh t phl t phl v ol control input 3v 1.5v 0v 3v 0v output normally low output normally high switch 6v switch gnd v ol 0.3v 0.3v t plz t pzl t pzh t phz 3v 0v 1.5v 1.5v enable disable v oh test circuits and waveforms propagation delay test circuits for all outputs enable and disable times set-up, hold, and release times pulse width test switch open drain disable low 6v enable low disable high gnd enable high all other tests open switch position 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. diagram shown for input control enable-low and input control disable-high. 2. pulse generator for all pulses: rate 1.0mhz; t f 2.5ns; t r 2.5ns. 3. if v cc is below 3v, input voltage swings should be adjusted not to exceed v cc .
7 idt74fct163245a/c 3.3v cmos 16-bit bidirectional transceiver industrial temperature range ordering information xx temp. range xxxx device type x package pvg pag pfg shrink small outline package - green thin shrink small outline package - green thin very small outline package - green 245a 245c non-inverting 16-bit bidirectional transceiver ? 40 c to +85 c 74 fct xxx family 163 double-density 3.3volt 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 09/10/09 pg.7 updated the ordering information by removing the "idt" notation and non rohs part.
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