1 idtqs3162233 high-speed cmos quickswitch 32:16 mux/demux industrial temperature range november 2001 2001 integrated device technology, inc. dsc-5559/1 c idtqs3162233 industrial temperature range quickswitch ? products high-speed cmos quickswitch 32:16 mux/demux description: the qs3162233 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 simultaniously. 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. the qs3162233 adds an internal 25 w series termination resistor to each switch to reduce reflection noise in high-speed applications. mux/demux devices provide an order of magnitude faster speed than equivalent logic devices. the qs3162233 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 functional block diagram features: - enhanced n channel fet with no inherent diode to vcc - zero propagation delay, zero ground bounce - ttl-compatible input and output levels - undershoot clamp diodes on all switch and control pins - available in 56-pin ssop and tssop packages applications - video, audio, graphics switching, muxing - hot-swapping, hot-docking - voltage translation (5v to 3.3v) - bus funneling the idt logo is a registered trademark of integrated device technology, inc.
2 industrial temperature range idtqs3162233 high-speed cmos quickswitch 32:16 mux/demux pin configuration 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 so56-1 so56-2 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 ssop/ tssop top view absolute maximum ratings (1) symbol description max. unit v term (2) supply voltage to ground C 0.5 to +7 v v term (3) dc switch voltage v s C 0.5 to +7 v v term (3) dc input voltage v in C 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 .93 w dissipation (t a = 85 c) tssop .77 t stg storage temperature C 65 to +150 c 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. all terminals except vcc. capacitance (t a = +25 o c, f = 1.0mhz, v in = 0v, v out = 0v) pins typ. max. (1) unit control inputs 5 5.5 pf quickswitch channels mux 8.5 10 pf (switch off) demux 6 7 pf note: 1. this parameter is guaranteed but not production tested. function table (1) n = 1 through 8 sel 1 test 1 na function ll nb 1 na to nb 1 hl nb 2 na to nb 2 xh nb 1 , nb 2 na to nb 1 and nb 2 n = 9 through 16 sel 2 test 2 na function ll nb 1 na to nb 1 hl nb 2 na to nb 2 xh nb 1 , nb 2 na to nb 1 and nb 2 note: 1. h = high voltage level l = low volta g e level x = dont care pin description pin names i/o description na i/o bus a nb 1 , nb 2 i/o bus b sel 1 , sel 2 i data select test 1 , test 2 iport select
3 idtqs3162233 high-speed cmos quickswitch 32:16 mux/demux industrial temperature range 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0 10 20 30 40 50 60 70 80 r on (ohms) v in (volts) typical on resistance vs v in at v cc = 5v dc electrical characteristics over operating range following conditions apply unless otherwise specified: industrial: t a = -40c to +85c, v cc = 5.0v 10% 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 vcc 1 m a i oz off-state current (hi-z) 0v v out vcc 1 m a r on switch on resistance vcc = min., v in = 0v , i on = 30ma 22 30 45 w r on switch on resistance vcc = min., v in = 2.4v , i on = 15ma 22 37 55 w v p pass voltage (2) v in = vcc = 5v, i out = -5 m a 3.7 4 4.2 v notes: 1. typical values are at v cc = 5.0v, t a = 25c. 2. pass voltage is guaranteed but not production tested.
4 industrial temperature range idtqs3162233 high-speed cmos quickswitch 32:16 mux/demux 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 m a d 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 input toggling at 50% duty cycle 0.25 ma/mhz 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). a and b pins do not contribute to d icc . 3. this current applies to the control inputs only and represents the current required to switch internal capacitance at the sp ecified frequency. the a and b inputs generate no significant ac or dc currents as they transition. this parameter is guaranteed but not production tes ted. switching characteristics over operating range t a = -40c to +85c, v cc = 5.0v 10% c load = 50pf, r load = 500 w unless otherwise noted. symbol parameter min. (1) typ. max. unit t plh t phl data propagation delay (2,4) na to nbx, nbx to na 1.25 (3) ns t bx switch multiplex delay sel to na 1.5 6.5 ns t pzl t pzh switch turn-on delay sel, test to nbx 1.5 6.5 ns t plz t phz switch turn-off delay (2) sel, test to nbx 1.5 5.8 ns 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 at 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 cap acitance. 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. pr opagation delay of the bus switch, when used in a system, is determi ned by the driving circuit on the driving side of the switch and its interaction with the load on the driven side.
5 idtqs3162233 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 (so56-1) thin shrink small outline package (so56-2) pv pa 3162233 high speed cmos quickswitch 32:16 mux/demux x process corporate headquarters for sales: for tech support: 2975 stender way 800-345-7015 or 408-727-6116 logichelp@idt.com santa clara, ca 95054 fax: 408-492-8674 (408) 654-6459 www.idt.com
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