1 ps8190f 05/08/06 1a1 1a2 1a3 1a4 1a5 1a6 1a7 1a8 1a9 1a10 1 2 3 4 5 6 7 gnd 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 biasv 2a1 2a2 2a4 2a5 2a6 2a7 2a8 2a9 2a10 2a3 v cc 1b5 1b1 1b2 1b3 1b4 1b8 1b6 1b7 1b10 1b9 1oe gnd gnd 2b1 2b2 2b3 2b4 2b5 2b6 gnd 2b7 2b8 2b9 2b10 2oe 1a10 1a1 1oe 2a1 2oe 2a10 24 13 47 4 8 12 2 46 36 35 25 1 bias v 1b1 1b10 2b1 2b10 sw sw sw sw b a oe sw product description the pi3b16215 provides 20-bits of high-speed bus switching. the switches low on-state resistance allows connections to be made with minimal propagation delay also precharges the b-port to a user- selectable bias voltage (biasv) to minimize live- insertion noise. the device is organized as dual 10-bit bus switches with individual output-enable (oe) inputs. when oe is low, the corresponding 10-bit bus switch is on and port a is connected to port b. when oe is high, the switch is open, a high-impedance state exists between the two ports, and port b is precharged to biasv through the equivalent of a 10k-ohm resistor. to ensure the high-impedance state on 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 connected to oe. 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 product features ? near-zero propagation delay ? 5-ohm switches connect between two ports ? fast switching speed: 4.5ns (max.) ? b-port outputs are precharged by bias voltage to minimize signal distortion during live insertion ? package options include: ? 48-pin 240-mil wide plastic tssop (a) ? 48-pin 150-mil wide plastic bqsop (b) product pin configuration logic block diagram 3.3v, 20-bit nanoswitch ? w/precharged outputs pi3b16215 07-0003
2 ps8190f 05/08/06 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pi3b16215 3.3v, 20-bit nanoswitch ? w/precharged outputs e on o i t c n u f lt r o p b = t r o p a hv s a i b = t r o p b , z = t r o p a storage temperature range, t stg ...................................... ?65oc to +150oc supply voltage range, v cc ............................. ............ ?0.5v to +4.6v bias voltage range, biasv ........................................ ?0.5v to +4.6v input voltage range ........................................................ ?0.5v to +4.6v dc output current ....................................................................... 120ma power dissipation ............................................................................ 0.5w note: stresses greater than those listed under 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. maximum ratings (above which useful life may be impaired. for user guidelines, not tested.) electrical characteristics (over the operating range, t a = ?40c to +85c, v cc = 3.0v to 3.6v) notes: 1. this is the increase in supply current for each input (oe only) that is at the specified voltage level rather than v cc or gnd. 2. measured by the voltage drop between the a and b terminals at the indicated current through the switch. on state resistance is determined by the lower of the voltages of the two (a or b) terminals. r e t e m a r a pn o i t p i r c s e ds n o i t i d n o c t s e t. n i m. p y t. x a ms t i n u v s a i be g a t l o v s a i b 0v c c v v h i e g a t l o v t u p n i l o r t n o c l e v e l - h g i hv c c v 6 . 3 o t v 7 . 2 =2 v l i e g a t l o v t u p n i l o r t n o c l e v e l - w o lv c c v 6 . 3 o t v 7 . 2 =5 . 0 ?8 . 0 v k i e g a t l o v e d o i d p m a l cv c c v 0 . 3 =i i a m 8 1 ? =7 . 0 ?2 . 1 ? i i t n e r r u c t u p n iv c c v 6 . 3 =v i v = c c d n g r o5 a i h z o t n e r r u c t u p t u o e c n a d e p m i h g i hv c c 0 =v i v = o v 6 . 3 o t 0 =0 1 i o t n e r r u c t u p t u ov c c v 0 . 3 =v , v 4 . 2 = v s a i b o 0 =5 1 . 0a m i c c t n e r r u c y l p p u s r e w o p t n e c s e i u qv c c v 6 . 3 =i o v , 0 = i v = c c d n g r o0 1 a i c c ) 1 ( t n e r r u c y l p p u sv c c v 6 . 3 =, v 3 t a t u p n i e n o v t a s t u p n i r e h t o c c r o d n g 0 5 7 c n i e c n a t i c a p a c t u p n iv i 0 r o v 0 . 3 =0 . 3 f p c f f o f f o h c t i w s e c n a t i c a p a c b / av o 0 r o v 0 . 3 =f f o h c t i w s5 . 8 r n o ) 2 ( e c n a t s i s e r n o h c t i w sv i 0 =i i a m 4 6 =58 i i a m 4 2 =58 v i v 4 . 2 =i i a m 5 1 =0 15 1 truth table 07-0003
3 ps8190f 05/08/06 pi3b16215 3.3v, 20-bit nanoswitch ? w/precharged outputs 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1 2345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 12345678901 2 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 switching characteristics over operating range (switching characteristics over recommended operating free-air temperature range unless otherwise noted) r e t e m a r a ps n o i t i d n o c t s e t) t u p n i ( m o r f) t u p t u o ( o t v c c % 0 1 v 3 . 3 = s t i n u . n i m. x a m t d p ) 1 ( b r o aa r o b5 2 . 0 s n t h z p d n g = v s a i b e ob r o a 5 . 4 t l z p v 3 = v s a i b 5 . 4 t z h p d n g = v s a i b 0 . 5 t z l p v 3 = v s a i b 0 . 5 input t plh t phl 2.7 v 1.5 v 1.5 v 1.5 v 1.5 v 0 v output v oh v ol 500 500 g n d 6 v open s1 load circuit from output under test c l = 50pf (see n ote 1) t pzl output control (low level enabling) 0 v 1.5 v 1.5 v 1.5 v 1.5 v t plz t phz v ol 3 v 0 v t pzh +0.3 v -0.3 v output waveform 1 s1 at 2x v cc (see n ote 2) output waveform 2 s1 at g n d (see n ote 2) v oh v oh v ol 2.7 v voltage waveforms propagation delay times voltage waveforms enable and disable times test s1 t pd open t plz /t pzl 6v t phz /t pzh gnd parameter measurements (v cc = 2.7 and 3.3v 10%) notes: 1. c l includes probe and jig capacitance. 2. waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. 3. waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control . 4. all input impulses are supplied by generators with the following characteristics: prr 10 mhz, z o =50-ohm, t r 2.5ns, t f 2.5ns. 5. the outputs are measured one at a time with one transition per measurement. 6. t tpz and t phz are the same as, t dis , t pzl and t pzh are the same as t en , t plh and t phl are the same as t pd . figure 1. load circuit and voltage waveforms note: 1. the propagation delay is the calculated rc time of the typical on-state resistance of the switch and the specified load capacitance, when driven by an ideal voltage source (zero output impedance). (see note 4) (see note 5) (see note 6) (see note 3) 07-0003
4 ps8190f 05/08/06 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pi3b16215 3.3v, 20-bit nanoswitch ? w/precharged outputs packaging mechanical: 48-pin tssop (a) package packaging mechanical: 48-pin bqsop (b) package .014 .0157 bsc 0.40 0.356 .00 8 0.20 .002 .009 5 ? 0.05 0.25 .079 2.0 .010 0.25 gauge plane .150 .157 x.xx x.xx de n otes dime n sio n s i n millimeters 3. 8 0 4.00 .22 8 .244 5. 8 0 6.20 .020 .029 0.50 0.75 .063 1.60 .015 0.3 8 1 .3 8 6 .394 9. 8 0 10.00 .0051 .009 0.13 0.23 1 4 8 x 45 ? bsc n om max n om ref .236 .244 .4 88 .496 .002 .006 seati n g pla n e .007 .010 .0197 bsc .004 .00 8 .319 1 4 8 12.4 12.6 6.0 6.2 0.50 0.17 0.27 8 .1 0.05 0.15 0.09 0.20 x.xx x.xx de n otes dime n sio n s i n millimeters .01 8 .030 0.45 0.75 .047 1.20 max bsc 07-0003
5 ps8190f 05/08/06 pi3b16215 3.3v, 20-bit nanoswitch ? w/precharged outputs 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1 2345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901212345678901234567890123456789012 12345678901 2 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pericom semiconductor corporation ? 1-800-435-2336 ? www.pericom.com applications information logic inputs the logic control inputs can be driven up to +3.6v regardless of the supply voltage. for example, given a +3.3v supply, in may be driven low to 0v and high to 3.6v. driving in rail-to-rail ? minimizes power consumption. power-supply sequencing and hot plug information proper power-supply sequencing is recommended for all cmos devices. always apply v cc and gnd before applying signals to input/ output or control pins. rail-to-rail is a registered trademark of nippon motorola, ltd. ordering information e d o c g n i r e d r oe d o c e g a k c a pn o t p i r c s e d e g a k c a p a 5 1 2 6 1 b 3 i pa p o s s t e d i w l i m - 0 4 2 n i p - 8 4 b 5 1 2 6 1 b 3 i pb p o s q b e d i w l i m - 0 5 1 n i p - 8 4 notes: ? thermal characteristics can be found on the company web site at www.pericom.com/packaging/ ? adding an x suffix = tape/reel 07-0003
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