industrial temperature range idt74cbtlv6800 low-voltage 10-bit bus switch with precharged outputs 1 december 2014 industrial temperature range the idt logo is a registered trademark of integrated device technology, inc. ? 2015 integrated device technology, inc. dsc-5739/5 functional block diagram features: ? functionally equivalent to qs3800 ?5 a/b bi-directional switch ? isolation under power-off conditions ? over-voltage tolerant ? latch-up performance exceeds 100ma ?v cc = 2.3v - 3.6v, normal range ? esd > 2000v per mil-std-883, method 3015; > 200v using machine model (c = 200pf, r = 0) ? available in qsop and tssop packages applications: ? 3.3v high speed bus switching and bus isolation simplified schematic, each switch idt74cbtlv6800 2 11 a1 a10 23 14 sw sw b1 b10 biasv 13 1 oe low-voltage 10-bit bus switch with precharged outputs description: the cbtlv6800 provides 10-bits of high-speed bus switching with low on-state resistance of the switch allowing connections to be made with minimal propagation delay. the device also precharges the b port to a user-selectable bias voltage (biasv) to minimize live-insertion noise. the cbtlv6800 is organized as a single 10-bit bus switch with a single output-enable ( oe ) input. when oe is low, the 10-bit bus switch is on and port a is connected to port b. when oe is high, the switch is open, and a high impedance state exists between the two ports, and port b is precharged to biasv through the equivalent of a 10-k resistor. to ensure the high-impedance state during power up or power down, oe 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. oe a b
industrial temperature range 2 idt74cbtlv6800 low-voltage 10-bit bus switch with precharged outputs pin configuration qsop / tssop top view symbol parameter test conditions min. max. unit v cc supply voltage 2.3 3.6 v biasv bias voltage 1.3 v cc v v ih high-level control input voltage v cc = 2.3v to 2.7v 1.7 ? v v cc = 2.7v to 3.6v 2 ? v il low-level control input voltage v cc = 2.3v to 2.7v ? 0.7 v v cc = 2.7v to 3.6v ? 0.8 t a operating free-air temperature ? 40 85 c operating characteristics, t a = 25c (1) note: 1. all unused control inputs of the device must be held at v cc or gnd to ensure proper device operation. symbol description max unit v cc supplyvoltage range ?0.5 to +4.6 v v i input voltage range ?0.5 to +4.6 v continuous channel current 128 ma i ik input clamp current, v i/o < 0 ?50 ma t stg storage temperature ?65 to +150 c absolute maximum ratings (1) note: 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. note: 1. h = high voltage level l = low voltage level z = high-impedance input oe inputs/outputs l a port = b port h a port = z b port = biasv function table (1) v cc b 2 b 3 b 4 b 5 b 6 b 7 b 8 b 9 a 1 a 2 a 3 a 4 a 6 a 7 a 8 a 9 a 10 oe b 10 biasv a 5 gnd b 1 2 3 4 5 6 7 8 9 10 1 11 12 13 14 15 16 17 18 19 20 21 22 23 24
industrial temperature range idt74cbtlv6800 low-voltage 10-bit bus switch with precharged outputs 3 symbol par ameter test conditions min. typ. max. unit v ik control inputs, data inputs v cc = 3v, i i = ?18ma ? ? ?1.2 v i i control inputs v cc = 3.6v, v i = v cc or gnd ? ? 1 a i oz data i/o v cc = 3.6v, v o = 0 or 3.6v, switch disabled ? ? 20 a i off v cc = 0, v i or v o = 0 to 3.6v ? ? 50 a |i o |v cc = 3v, biasv = 2.4v, v o = 0, oe = v cc 0.25 ? ? ma i cc v cc = 3.6v, i o = 0, v i = v cc or gnd ? ? 10 a i cc (1) control inputs v cc = 3.6v, one input at 3v, other inputs at v cc or gnd ? ? 300 a c i control inputs v i = 3v or 0 ? 4 ? pf c io(off) v o = 3v or 0, switch off, biasv = open, oe = v cc ?7 ?pf v cc = 2.3v v i = 0 i i = 64ma ? 5 8 typ. at v cc = 2.5v i i = 24ma ? 5 8 r on (2) v i = 1.7v i i = 15ma ? 27 40 v i = 0 i i = 64ma ? 5 7 v cc = 3v i i = 24ma ? 5 7 v i = 2.4v i i = 15ma ? 10 15 dc electrical characteristics over operating range following conditions apply unless otherwise specified: operating conditions: t a = ?40c to +85c notes: 1. the increase in supply current is attributable to each current that is at the specified voltage level rather than v cc or gnd. 2. this is measured by the voltage drop between the a and b terminals at the indicated current through the switch. on-state resi stance is determined by the lower of the voltages of the two (a or b ) terminals. note: 1. the propagation delay is the calculated rc time constant of the typical on-state resistance of the switch and the specified l oad capacitance driven by an ideal voltage source (zero output impedance). v cc = 2.5v 0.2v v cc = 3.3v 0.3v symbol parameter min. max. min. max. unit t pd (1) propagation delay ? 0.15 ? 0.25 ns a to b or b to a t pzh biasv = 3v or gnd 1 4.8 1 4.5 ns t pzl oe to a or b t phz biasv = 3v or gnd 1 5.6 1 5.5 ns t plz oe to a or b switching characteristics
industrial temperature range 4 idt74cbtlv6800 low-voltage 10-bit bus switch with precharged outputs open v load gnd v cc pulse generator d.u.t. 500 ? 500 ? c l r t v in v out (1, 2) 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 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 test circuits and waveforms test circuits for all outputs enable and disable times propagation delay notes: 1. pulse generator for all pulses: rate 10mhz; t f 2.5ns; t r 2.5ns. 2. pulse generator for all pulses: rate 10mhz; t f 2ns; t r 2.5ns. definitions: c l = load capacitance: includes jig and probe capacitance. r t = termination resistance: should be equal to z out of the pulse generator. symbol v cc (1) = 3.3v0.3v v cc (2) = 2.5v0.2v unit v load 6 2 x vcc v v ih 3 vcc v v t 1.5 vcc / 2 v v lz 300 150 mv v hz 300 150 mv c l 50 30 pf test conditions test switch t plz /t pzl v load t phz /t pzh gnd t pd open switch position
industrial temperature range idt74cbtlv6800 low-voltage 10-bit bus switch with precharged outputs 5 xx cbtlv xxx xx package device type temp. range qg pgg 74 quarter-size small outline package - green thin shrink small outline package - green low-voltage 10-bit bus switch with precharged outputs ?40c to +85c 6800 blank 8 x tube or tray tape and reel ordering information 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 12/18/2014 pg. 5 updated the ordering information by removing the "idt" notation, non rohs part and by adding tape and reel information.
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