1 idtqs316233 high-speed cmos quickswitch 32:16 mux/demux industrial temperature range november 2001 2001 integrated device technology, inc. dsc-5566/3 c industrial temperature range the idt logo is a registered trademark of integrated device technology, inc. applications: ? video, audio, graphics switching, muxing ? hot-swapping, hot-docking ? voltage translation (5v to 3.3v) ? bus funneling functional block diagram idtqs316233 quickswitch ? products high-speed cmos quickswitch 32:16 mux/demux features: ? enhanced n channel fet with no inherent diode to vcc ?5 bidirectional switches connect inputs to outputs ? zero propagation delay, zero ground bounce ? ttl-compatible input and output levels ? undershoot clamp diodes on all switch and control inputs ? available in ssop and tssop packages description: the qs316233 is a 32-bit to 16-bit high-speed cmos, ttl-compatible switch which can multiplex or demultiplex data. it can be used for memory interleaving where two memory banks need to be addressed simulta- neously. it can also be used as two 16-bit to 8-bit multiplexers or as one 32-bit to 16-bit multiplexer. seln inputs control the data flow. testn inputs control either one or two ports connection. mux/demux devices provide an order of magnitude faster speed than equivalent logic devices. the qs316233 is characterized for operation at -40c to +85c. test 1 sel 1 na one of eight channels nb 2 nb 1 n = 1 through 8 test 2 sel 2 na one of eight channels nb 2 nb 1 n = 9 through 16
2 industrial temperature range idtqs316233 high-speed cmos quickswitch 32:16 mux/demux pin configuration ssop/ tssop top view pins typ. max. (1) unit control inputs 5 5.5 pf quickswitch channels mux 8.5 10 pf (switch off) demux 6 7 capacitance (t a = +25c, f = 1mhz, v in = 0v, v out = 0v) note: 1. this parameter is guaranteed but not production tested. 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 ssop 0.93 w dissipation (t a = 85c) tssop 0.77 t stg storage temperature ?65 to +150 c absolute maximum ratings (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. v cc terminals. 3. all terminals except v cc . pin names i/o description x a i/o bus a xb 1 , xb 2 i/o bus b sel 1 , sel 2 i data select test 1 , test 2 i port select pin description note: 1. h = high voltage level l = low voltage level x = don't care function tables (1) n = 1 through 8 sel 1 test 1 xa function llxb 1 xa to xb 1 hlxb 2 xa to xb 2 xhxb 1 , xb 2 xa to xb 1 and xb 2 n = 9 through 16 sel 2 test 2 xa function llxb 1 xa to xb 1 hlxb 2 xa to xb 2 xhxb 1 , xb 2 xa to xb 1 and xb 2 gnd 56 1 1 a 1 b 1 55 2 2 b 11 b 2 54 3 2 b 22 a 47 37 38 39 40 41 42 43 44 45 46 33 34 35 36 49 50 51 52 53 48 4 5 6 7 8 9 10 12 13 14 15 16 17 18 19 20 11 21 22 23 24 29 30 31 32 25 26 27 28 3 a test 1 vcc test 2 sel 1 sel 2 gnd vcc 4 b 1 4 b 2 5 a 6 b 1 6 b 2 7 a 8 b 1 9 a 10 b 1 10 b 2 11 a 12 b 1 12 b 2 13 a 14 b 1 14 b 2 15 a 16 b 1 8 b 2 16 b 2 10 a 11 b 1 11 b 2 12 a 13 b 1 13 b 2 14 a 15 b 1 15 b 2 16 a 9 b 1 9 b 2 3 b 1 3 b 2 4 a 5 b 1 5 b 2 6 a 7 b 1 7 b 2 8 a
3 idtqs316233 high-speed cmos quickswitch 32:16 mux/demux industrial temperature range symbol parameter test conditions min. typ. (1) max. unit v ih input high voltage guaranteed logic high for control inputs 2 ? ? v v il input low voltage guaranteed logic low for control inputs ? ? 0.8 v i in input leakage current (control inputs) 0v v in v cc ??1a i oz off-state current (hi-z) 0v v out v cc ??1a 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 12 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 10% notes: 1. typical values are at v cc = 5v and t a = 25c. 2. pass voltage is guaranteed but not production tested. typical on resistance vs v in at v cc = 5v r on (ohms) v in (volts) 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0 2 4 6 8 10 12 14 16
4 industrial temperature range idtqs316233 high-speed cmos quickswitch 32:16 mux/demux 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). 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) max. unit i ccq quiescent power supply current v cc = max., v in = gnd or v cc , f = 0 3 a i cc power supply current per control input high (2) v cc = max., v in = 3.4v, f = 0 3 ma i ccd dynamic power supply current per mhz (3) v cc = max., a and b pins open, control inputs toggling @ 50% duty cycle 0.25 ma/mhz switching characteristics over operating range t a = -40c to +85c, v cc = 5v 10% 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 xa to xbx, xbx to xa t bx switch multiplex delay 1.5 ? 5.3 ns sel to xa t pzl switch turn-on delay 1.5 ? 5.2 ns t pzh sel, test to xbx t plz switch turn-off delay (2) 1.5 ? 5.3 ns t phz sel, test to xbx 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 idtqs316233 high-speed cmos quickswitch 32:16 mux/demux industrial temperature range ordering information idtqs xxxxx xx package device type blank industrial (-40c to +85c) shrink small outline package thin shrink small outline package pv pa 316233 high speed cmos quickswitch 32:16 mux/demux x process 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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