1 idtqs32390 high-speed cmos quickswitch 16:8 multiplexer industrial temperature range march 2002 2002 integrated device technology, inc. dsc-5752/4 c industrial temperature range ab 7 aen ab 0 a 7 a 0 ben b 7 b 0 functional block diagram the idt logo is a registered trademark of integrated device technology, inc. features: ? enhanced n channel fet with no inherent diode to vcc ? 16:8 multiplexer function with zero delay ?5 bidirectional switches connect inputs to outputs ? zero propagation delay, zero ground bounce ? undershoot clamp diodes on all switch and control inputs ? direct bidirectional connection for mux, demux ?25 resistors for low noise ? available in qsop package applications: ? video, audio, graphics switching, muxing ? hot-swapping, hot-docking ? voltage translation (5v to 3.3v) idtqs32390 quickswitch ? products high-speed cmos quickswitch 16:8 multiplexer description: the qs32390 provides a 16:8 multiplexer logic switch. the qs32390 has an internal 25 resistor to reduce reflection noise in high-speed applica- tions. the enable inputs connect one of two inputs to the common i/o pin, respectively. the multiplexer function can be used to select and route logic signals for zero delay, isolate bus capacitance, form crossbar switches, etc. mux/demux devices provide an order of magnitude faster speed than equivalent logic devices. the qs32390 is characterized for operation at -40c to +85c.
2 industrial temperature range idtqs32390 high-speed cmos quickswitch 16:8 multiplexer pin configuration qsop top view 24 23 22 21 20 19 18 17 16 15 11 12 b 0 ab 0 v cc 1 2 3 4 5 6 7 8 9 10 14 13 aen gnd ben 25 26 27 28 a 0 b 1 ab 1 a 1 b 2 ab 2 a 2 b 3 ab 3 a 3 b 7 ab 7 a 7 b 6 ab 6 a 6 b 5 ab 5 a 5 b 4 ab 4 a 4 note: 1. h = high voltage level l = low voltage level function table (1) symbol description max unit v term (2) supply voltage to ground ?0.5 to +7 v v term (3) dc switch voltage vs ?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. 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. all terminals except vcc. capacitance (t a = +25c, f = 1.0mh z , v in = 0v, v out = 0v) note: 1. this parameter is measured at characterization but not tested. pins typ. max. (1) unit control pins 4 5 pf quickswitch channels demux 5 7 pf (switch off) mux 9 10 pin description pin names i/o description a 0 - a 9 i/o bus a b 0 - b 9 i/o bus b aen , ben i bus switch enable aen ben a 0 - a 9 b 0 - b 9 function h h off off disconnect l h on off a to ab h l off on b to ab l l on on a, b to ab
3 idtqs32390 high-speed cmos quickswitch 16:8 multiplexer industrial temperature range r on (ohms) v in (volts) typical on resistance vs v in at v cc = 5v 80 70 60 50 40 30 20 10 0 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 symbol parameter test conditions min. typ. (1) max. unit v ih input high level guaranteed logic high for control pins 2 ? ? v v il input low level guaranteed logic low for control pins ? ? 0.8 v i in input leakagecurrent (control inputs) (2) 0v v in v cc ?? 1a i oz off-state output current (hi-z) 0v v out v cc , switches off ? ? 1a r on (3) switch on resistance v cc = min., v in = 0v, i on = 30ma 15 20 35 v cc = min., v in = 2.4v, i on =15ma 15 19 40 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 = 5.0v 5% notes: 1. typical values are at v cc = 5.0v, t a = 25c. 2. pass voltage is guaranteed but not production tested. 3. r out changed on march 8, 2002. see rear page for more information.
4 industrial temperature range idtqs32390 high-speed cmos quickswitch 16:8 multiplexer power supply characteristics symbol parameter test conditions (1) max. unit i ccq quiescent power supply current v cc = max., v in = gnd or vcc, f = 0 3 a i cc power supply current per control 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, b, and ab pins open 0.25 ma/mhz control inputs toggling at 50% duty cycle notes: 1. for conditions shown as min. or max., use the appropriate values specified under dc electrical characteristics. 2. per tll driven input (v in = 3.4v, control inputs only). a, b, and ab 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, b, and ab i/os generate no significant ac or dc currents as they transition. this parameter is guaranteed but not production tested. switching characteristics over operating range t a = -40c to +85c, v cc = 5.0v 5%; c load = 50pf, r load = 500 unless otherwise noted. symbol parameter min. (1) typ. max. unit t plh data propagation delay (2,4) ? ? 1.25 (3) ns t phl axbx to cxdx, cxdx to axbx t pzh switch turn-on delay 1.5 ? 7.5 ns t pzl be to ax, bx, cx, dx t phz switch turn-off delay (2) ? ? 5.5 ns t plz be to ax, bx, cx, dx notes: 1. minimums are guaranteed but not production tested. 2. this parameter is guaranteed but not production tested. 3. the time constant for the switch alone is of the order of 1.25ns for c l = 50pf. 4. the bus switch contributes no propagation delay other than the rc delay of the on resistance of the switch and the load capac itance. 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 dela y of the bus switch, when used in a system, is determined by the driving circuit on the driving side of the switch and its interaction with the load on the driven side.
5 idtqs32390 high-speed cmos quickswitch 16:8 multiplexer industrial temperature range ordering information idtqs xxxxx xx package device type quarter size outline package qsop - green q qg 32390 high speed cmos quickswitch 16:8 multiplexer parameter description min. typ. max. unit r on v cc = min, v in = 0v, i on = 30ma 20 28 40 v cc = min, v in = 2.4v, i on = 15ma 24 35 48 as per pcn l0201-02, the output resistance (r on ) specifications have changed as of march 8, 2002. the original specifications were: 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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