1 idtqs3l384 high-speed low power 10-bit bus exchange switch industrial temperature range january 2013 2013 integrated device technology, inc. dsc-5772/6 c industrial temperature range features: ? enhanced n channel fet with no inherent diode to vcc ?5 bidirectional switches connect inputs to outputs ? zero propagation delay, zero added ground bounce ? ultra low power with 0.2 a typical icc ? undershoot clamp diodes on all switch and control inputs ? two enables control five bits each ? available in qsop and tssop packages the idt logo is a registered trademark of integrated device technology, inc. applications: ? hot-swapping, hot-docking ? voltage translation (5v to 3.3v) ? power conservation ? capacitance reduction and isloation ? bus isolation ? clock gating idtqs3l384 functional block diagram quickswitch ? products high-speed low power cmos 10-bit bus exchange switch description: the qs3l384 provides a set of ten high-speed cmos ttl-compatible bus switches. the low on resistance of the qs3l384 allows inputs to be connected to outputs without adding propagation delay and without gener- ating additional ground bounce noise. the bus enable ( be ) signals turn the switches on. two bus enable signals are provided, one for each of the upper and lower five bits of the two 10-bit buses. the qs3l384 is characterized for operation at -40c to +85c. b 4 beb bea b 0 a 4 a 0 b 5 b 5 a 9 a 5
2 industrial temperature range idtqs3l384 high-speed low power 10-bit bus exchange switch pin configuration symbol description max unit v term (2) supply voltage to ground ?0.5 to +7 v v term (3) dc switch voltage v s ?0.5 to +7 v v term (3) dc input voltage v in ?0.5 to +7 v v ac ac input voltage (pulse width 20ns) ?3 v i out dc output current 120 ma p max maximum power dissipation (t a = 85c) 0.5 w t stg storage temperature ?65 to +150 c absolute maximum ratings (1) note: 1. h = high voltage level l = low voltage level z = high-impedance bea beb b 0 - a 4 b 5 - b 9 function h h hi-z hi-z disconnect lh a 0 - a 4 hi-z connect h l hi-z a 5 - a 9 connect ll a 0 - a 4 a 5 - a 9 connect function table (1) pins typ. max. (1) unit control inputs 3 5 pf quickswitch channels (switch off) 5 7 pf capacitance (t a = +25c, f = 1mhz, v in = 0v, v out = 0v) note: 1. this parameter is guaranteed but not production tested. pin names i/o description a 0 - a 9 i/o bus a b 0 - b 9 i/o bus b bea , beb i bus switch enable pin description 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 . qsop/ tssop top view 124 bea v cc 2 23 b 0 b 9 3 22 a 0 a 9 4 21 a 1 a 8 520 b 1 b 8 6 19 b 2 b 7 8 17 a 3 a 6 9 16 b 3 b 6 10 15 b 4 b 5 7 18 a 2 a 7 11 14 a 4 a 5 12 13 gnd beb
3 idtqs3l384 high-speed low power 10-bit bus exchange switch industrial temperature range typical on resistance vs v in at v cc = 5v r on (ohms) v in (volts) symbol parameter test conditions min. typ. (1) max. unit v ih input high voltage guaranteed logic high for control pins 2 ? ? v v il input low voltage guaranteed logic low for control pins ? ? 0.8 v i in input leakage current (control inputs) 0v v in v cc ??1 a i oz off-state current (hi-z) 0v v out v cc ? 0.01 1 a r on switch on resistance v cc = min., v in = 0v, i on = 30ma ? 5 7 v cc = min., v in = 2.4v, i on = 15ma ? 10 15 v p pass voltage (2) v in = v cc = 5v, i out = -5 a 3.7 4 4.2 v dc electrical characteristics over operating range following conditions apply unless otherwise specified: industrial: t a = ?40c to +85c, v cc = 5v 5% notes: 1. typical values are at v cc = 5v and t a = 25c. 2. pass voltage is guaranteed but not production tested. 16 14 12 10 8 6 4 2 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5
4 industrial temperature range idtqs3l384 high-speed low power 10-bit bus exchange switch notes: 1. for conditions shown as min. or max., use the appropriate values specified under dc electrical characteristics. 2. per ttl-driven input (v in = 3.4v, control inputs only). a and b pins do not contribute to icc. 3. this current applies to the control inputs only and represents the current required to switch internal capacitance at the spe cified frequency. the a and b inputs generate no significant ac or dc currents as they transition. this parameter is guaranteed but not production tested. power supply characteristics symbol parameter test conditions (1) typ. max. unit i ccq quiescent power supply current v cc = max., v in = gnd or v cc , f = 0 0.2 3 a i cc power supply current per input high (2) v cc = max., v in = 3.4v, f = 0 ? 1.5 ma i ccd dynamic power supply current per mhz (3) v cc = max., a and b pins open, ? 0.25 ma/mhz control inputs toggling @ 50% duty cycle switching characteristics over operating range t a = -40c to +85c, v cc = 5v 5% c load = 50pf, r load = 500 unless otherwise noted. symbol parameter min . (1) typ. max. unit t plh data propagation delay (2) ?? 0.25 (3) ns t phl ax to bx, bx to ax t pzl switch turn-on delay 1.5 ? 6.5 ns t pzh bea , beb to ax, bx t plz switch turn-off delay (2) 1.5 ? 5.5 ns t phz bea , beb to ax, bx notes: 1. minimums are guaranteed but not production tested. 2. this parameter is guaranteed but not production tested. 3. the bus switch contributes no propagation delay other than the rc delay of the on resistance of the switch and the load capac itance. the time constant for the switch alone is of the order of 0.25ns at c l = 50pf. since this time constant is much smaller than the rise and fall times of typical driving signals, it adds very little propagation delay to the system. propagation delay of the bus switch, when used in a system, is determined by the driving circuit on the driving side o f the switch and its interaction with the load on the driven side.
5 idtqs3l384 high-speed low power 10-bit bus exchange switch industrial temperature range ordering information qs xxxxx xx package device type quarter size outline package - qsop green thin shrink small outline package - tssop green qg pag 3l384 high speed low power cmos 10-bit bus switch x blank 8 tube or tray tape and reel 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 01/28/13 pg. 1, 5 updated the ordering information by removing non green package version, the ?idt? notation and adding tape and reel information.
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