1 ps8191d 05/03/00 product description pericom semiconductor?s pi3c series of logic circuits are produced using the company?s advanced submicron cmos technology, achieving industry leading performance. the PI3C6800 is a 10-bit bus switch with low on-state resistance. the bus switch creates no additional propagation delay. to minimize live-insertion noise, the device also precharges the b port to a user- selectable bias voltage (biasv). the switch is turned on by a single enable (on) input. when on is low, the switch is on and port a is connnected to port b. when on is high, the switch between port a and port b is open and the b port is precharged to biasv through the equivalent of a 10-k w resistor. v cc b1 b2 b3 b4 b5 b6 b7 b8 b9 b10 biasv 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 on a1 a2 a3 a4 a5 a6 a7 a8 a9 a10 gnd product pin configuration function on b1 - b10 connect l a1 - a10 precharge h b iasv truth table (1) note: 1. h = high voltage level l = low voltage level logic diagram 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 PI3C6800 2.5v/3.3v, 2-port, 10-bit bus switch with precharged outputs for live insertion product features ? near zero propagation delay ?5 w switch connection between two ports ? high bandwidth (>400 mhz) ? rail-to-rail 3.3v or 2.5v switching ? outputs are precharged by bias voltage to minimize signal distortion during live insertion ? 5v i/o tolerant ? 2.5v supply voltage operation ? package options: ? 24-pin 150 mil wide plastic qsop (q) ? 24-pin 173 mil wide tssop (l) 24-pin l, q on a10 a1 13 23 14 b1 b10
2 ps8191d 05/03/00 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 PI3C6800 2.5v/3.3v, 2-port, 10-bit bus switch with precharged outputs for live insertion electrical characteristics (over recommended operating free-air temperature range) storage temperature ........................................ ?65c to +150c supply voltage range .......................................... ?0.5v to 4.6v dc input voltage (1) ............................................... ?0.5v to +7v input clamp current, i ik (v 1 < 0) ..................................... ?50ma dc output current ......................................................... 120 ma power dissipation (2) .......................................................... 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. notes: 1. input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed. 2. maximum package power dissipation is calculated using a junction temperatue of 150c and a board trace length of 750 mils. absolute maximum ratings over free-air temperature range * (above which the useful life may be impaired. for user guidelines, not tested.) notes: * 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. ? this is the increase in supply current for control input. all typical values are at v cc = 3.3v, t a = 25c. s 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 mp y t . . x a ms t i n u v k i e g a t l o v e d o i d p m a l cv c c i , v 0 . 3 = n i 8 1 ? =ma 2 . 1 ?v i i t n e r r u c t u p n iv c c , v 6 . 3 =v n i v = c c d n g r o5 m a i o t n e r r u c t u p t u ov c c v , v 4 . 2 = v s a i b , v 0 . 3 = o 0 =5 2 . 0a m i c c y l p p u s r e w o p t n e c s e i u q t n e r r u c v c c i , v 6 . 3 = o , 0 =v n i v = c c d n g r o0 6 20 0 5 m a d i c c r e p t n e r r u c y l p p u s r e w o p t u p n i v c c , v 6 . 3 =v 7 . 2 t a t u p n i e n o t a r e h t ov c c d n g r o 5 . 2a m c n i e c n a t i c a p a c t u p n iv c c v 0 =5 . 3 f p c f f o e c n a t i c a p a c b / av c c , v 0 =f f o h c t i w s0 . 5 r n o * e c n a t s i s e r n o h c t i w sv c c v 0 . 3 = v n i i , 0 = n i 4 6 =a m57 w v n i i , v 4 . 2 = n i 0 3 =a m0 . 85 1 v n i i , v 4 . 2 = n i 5 1 =a m0 . 85 1 . n i mp y t . s t i n u v c c e g a t l o v y l p p u s3 . 23 . 3 v v s a i be g a t l o v y l p p u s3 . 1c c v v h i e g a t l o v t u p n i l e v e l - h g i h2 v l i e g a t l o v t u p n i l e v e l - w o l8 . 0 t a e r u t a r e p m e t r i a - e e r f g n i t a r e p o0 4 ?5 8c recommended operating conditions
3 ps8191d 05/03/00 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 PI3C6800 2.5v/3.3v, 2-port, 10-bit bus switch with precharged outputs for live insertion 3.3v switching characteristics (over recommended operating free-air temperature range, c l = 50pf) note: 1. this parameter is warranted but not production tested. the propagation delay is based on the rc time constant of the typical on state resistance of the switch and a load capacitance of 50pf, when driven by an ideal voltage source (zero output impedance). 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. n i m. x a ms t i n u 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 n ob r o a 5 . 15 . 6 t l z p v 3 = v s a i b5 . 15 . 6 t z h p d n g = v s a i b n ob r o a 5 . 15 . 5 t z l p v 3 = v s a i b5 . 15 . 5 2.5v switching characteristics (over recommended operating free-air temperature range, c l = 50pf) 4.0 2.0 0.0 0.0 1.0 2.0 3.0 4.0 5.0 v out , (v) v in , (v) v cc = 3.3v 3.1v 2.9v 2.7v 2.5v 2.3v 3.6v 3.8v 3.4v 3.2v 3.0v 2.8v output voltage vs. input voltage over various supply voltages 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. n i m. x a ms t i n u 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 n ob r o a 5 . 18 . 9 t l z p v 3 = v s a i b5 . 18 . 9 t z h p d n g = v s a i b n ob r o a 5 . 13 . 8 t z l p v 3 = v s a i b5 . 13 . 8 output voltage vs. input voltage over various supply voltages
4 ps8191d 05/03/00 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 PI3C6800 2.5v/3.3v, 2-port, 10-bit bus switch with precharged outputs for live insertion parameter measurements voltage waveforms propagation delay times voltage waveforms enable and disable times t s e t1 s t d p n e p o t z l p t / l z p v 6 t z h p t / h z p d n g 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. waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. 3. all input pulses are supplied by generators having the following characteristics: prr<10mhz, z o = 50 w , t r 2.5ns, t f 2.5ns. 4. the outputs are measured one at a time with one transition per measurement. 5. t plz and t phz are the same as t dis . 6. t pzl and t pzh are the same as t en . 7. t plh and t phl are the same as t pd . t pzl output control (low level enabling) 0v 1.5v 1.5v 1.5v 1.5v t plz t phz v ol 3.5v 0v t pzh +0.3v -0.3v output waveform 1 s1 at 6v (see note 2) output waveform 2 s1 at open (see note 2) v oh v oh v ol 3v 500 w 500 w gnd 6v open s1 load circuit from output under test cl = 50pf (see note 1)
5 ps8191d 05/03/00 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 PI3C6800 2.5v/3.3v, 2-port, 10-bit bus switch with precharged outputs for live insertion 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 proper power-supply sequencing is recommended for all cmos devices. always apply v cc before applying v bias and signals to input/output or control pins. rail-to-rail is a registered trademark of nippon motorola, ltd pericom semiconductor corporation 2380 bering drive ? san jose, ca 95131 ? 1-800-435-2336 ? fax (408) 435-1100 ? http://www.pericom.com 24-pin tssop (l) package 24-pin qsop (q) package t r a pe g a k c a p - n i pe r u t a r e p m e t l 0 0 8 6 c 3 i p) l ( p o s s t - 4 2c o 5 8 o t c o 0 4 ? q 0 0 8 6 c 3 i p) q ( p o s q - 4 2c o 5 8 o t c o 0 4 ? ordering information .303 .311 .047 1.20 .002 .006 seating plane .0256 bsc .018 .030 .004 .008 .252 bsc 1 24 .169 .177 x.xx x.xx denotes controlling dimensions in millimeters 0.05 0.15 6.4 0.45 0.75 0.09 0.20 4.3 4.5 7.7 7.9 0.65 0.19 0.30 .007 .012 max .337 .344 .053 .069 .004 .010 seating plane .025 typical .007 .010 .228 .244 1 24 .150 .157 .016 .050 x.xx x.xx denotes dimensions in millimeters 0.635 8.56 8.74 1.35 1.75 5.79 6.20 0.406 1.27 0.101 0.254 .008 .012 0.203 0.305 3.81 3.99 0.178 0.254 .033 0.84 0.38 .015 x 45?
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