technical data kk74lv373 octal d-type transparent latch; 3-state ordering information kk 74lv373n plastic kk 74lv373dw soic t a = -40 t o 125 c for all packages the kk 74lv373 is a low-voltage si-gate cmos devise and is pin and funct i on com p at i b l e wi t h 74hc t 373. the kk 74lv373 is an octal d-type transparent latch featuring separate d-type inputs for each latch and 3-state outputs for bus oriented appl i cat i ons. a l a t c h enabl e (le) i nput and an out put enabl e (oe) i nput are co m m o n to all in tem a l latch e s. ? outputs directly interf ace to cmos, nmos, and ttl ? operat i ng vol t a ge r a nge: 1.2 t o 3.6 v ? low input c u rrent : 1.0 a ? high noise im m unity characteristic of cmos devices logic diagram oe 01 q 0 02 d 0 03 d 1 04 q 1 05 q 2 06 d 2 07 d 3 08 q 3 09 19 18 17 16 15 14 13 12 11 d 7 d 6 q 6 q 5 d 5 d 4 q 4 le q 7 pin 20=v cc pin 10 = gnd pin assignment 373 oe 01 q 0 02 d 0 03 d 1 04 q 1 05 q 2 06 d 2 07 d 3 08 q 3 09 gnd 10 20 19 18 17 16 15 14 13 12 11 d 7 d 6 q 6 q 5 d 5 d 4 q 4 le v cc q 7 function table input s o u t put o e l e d n q n l h h h l h l l l l x q o h x x z x = don?t care z = hi gh i m pedance off-st at e l = lo w v o ltag e lev e l h= high voltage level 1
kk74lv373 maximum ratings * sym b o l p a r a m e t e r valu e un i t v cc dc suppl y vol t a ge -0.5 t o +5.0 v i ik * 1 dc i nput di ode current 20 ma i ok * 2 dc out put di ode current 50 ma io* 3 dc out put source or si nk current -bus dri v er out put s 35 ma i gnd dc v cc or gnd current for ty pes with - bus dri v er out put s 70 ma i cc dc v cc or gnd current for ty pes with - bus dri v er out put s 70 ma p d power di ssi pat i on per paskade, pl ast i c dip+ soic package+ 750 500 mw tst g st orage t e m p erat ure -65 t o +150 c t l lead t e m p erat ure, 1.5 m m from c a se for 10 seconds (plastic dip ), 0.3 m m (soic package) 260 c * m a xi m u m r a t i ngs are t hose val u es bey ond whi c h dam a ge t o t h e devi ce m a y occur. functional operation should be restricted to the reco m m e nded operating conditions. +derat i ng - pl ast i c dip: - 12 m w / c from 70 t o 125 c soic package: : - 8 m w / c from 70 t o 125 c *1: v i < -0.5 or v i > v cc +0.5v *2: vo < -0.5 or vo > v cc +0.5v *3: -0.5v < vo < v cc +0.5v recommended operating conditions s y m b o l p a r a m e t e r m i n m a x u n i t v cc dc suppl y vol t a ge 1.2 3.6 v v in , v out dc input vol t a ge, out put vol t a ge 0 v cc v t a operat i ng tem p erat ure, al l package ty pes -40 +125 c t r , t f input r i se and fal l ti m e (fi gure 1) v cc =1.2 v v cc =2.0 v v cc =3.0 v v cc =3.6 v 0 0 0 1000 700 500 400 ns thi s devi ce cont ai ns prot ect i on ci rcui t r y t o guard agai ns t dam a ge due t o hi gh st at i c vol t a ges or el ect ri c fi el ds. however, precautions m u st be taken to avoid applications of any voltage highe r than m a xim u m rated voltages to this hi gh-i m pedance ci rcui t . for proper operat i on, v in and v out shoul d be const r ai ned t o t h e range gnd (v in or v out ) v cc . unused i nput s m u st al way s be t i e d t o an appropri a t e l ogi c vol t a ge l e vel (e.g., ei t h er gnd or v cc ). unused out put s m u st be l e ft open. 2
kk74lv373 dc electrical characteristics s y m b o l p a r a m e t e r test conditions v cc , guaranteed limit unit 25 q c -40 q c t 85 q c -40 q c t 125 q c m i n m ax min max min max v ih high l e vel i nput vol t a ge v o = v cc -0.1 1.2 2.0 3.0 3.6 0.9 1.4 2.1 2.5 - - - - 0.9 1.4 2.1 2.5 - - - - 0.9 1.4 2.1 2.5 - - - - v il low l e vel i nput vol t a ge v o =0.1 1 . 2 2.0 3.0 3.6 - - - - 0.3 0.6 0.9 1.1 - - - - 0.3 0.6 0.9 1.1 - - - - 0.3 0.6 0.9 1.1 v oh high level out put vol t a ge; al l out put s v i = v ih or v il i o = -50 ?? 1.2 2.0 3.0 3.6 1.1 1.92 2.92 3.52 - - - - 1.0 1.9 2.9 3.5 - - - - 1.0 1.9 2.9 3.5 - - - - h i g h l e v e l out put vol t a ge; bus dri v er out put s v i = v ih or v il i o = -8.0 ? 3.0 2 .48 - 2 . 3 4 - 2 . 2 0 - b v ol low - l e vel out put v o ltag e ; all out put s v i = v ih or v il i o = 50 ?? 1.2 2.0 3.0 3.6 - - - - 0.09 0.09 0.09 0.09 - - - - 0.1 0.1 0.1 0.1 - - - - 0.1 0.1 0.1 0.1 b l o w - l e vel out put vol t a ge; bus dri v er out put s v i = v ih or v il i o = 8.0 ? 3.0 - 0 . 3 3 - 0.4 - 0 . 5 b i in input l eakage current v i = v cc or gnd 3.6 - r 0.1 - r 1.0 - r 1.0 ?? i oz 3-st at e out put off-state current v i = v il or v ih v o =v cc or gnd 1.2 3.6 - r 0.5 - r 5 - r 10 ?? i cc gui e scent suppl y current; m s i v i =v cc or 0 b i o = 0 ?? 3.6 - 8 . 0 - 80 - 1 6 0 ?? 3
kk74lv373 ac electrical characteristics (c l =50 , t lh = t hl = 6.0 ? , v il =0b, v ih =v cc ) s y m b o l p a r a m e t e r v cc guaranteed limit unit v 25 q c -40 q c t 85 q c -40 q c t 125 q c m i n m a x min max min max t phl, t plh dn qn propagat i on del a y dn to qn 1.2 2.0 3.0 - - - 150 38 23 - - - 190 48 29 - - - 220 58 35 ns t phl, t plh le qn propagat i on del a y le to qn 1.2 2.0 3.0 - - - 180 45 27 - - - 230 56 34 - - - 270 68 41 t phz, t plz oe qn 3-st at e out put enabl e tim e oe to qn 1.2 2.0 3.0 - - - 160 35 23 - - - 200 43 28 - - - 240 45 32 t pzh, t pzl oe qn 3-st at e out put di sabl e t i m e oe to qn 1.2 2.0 3.0 - - - 160 40 24 - - - 200 50 30 - - - 240 60 36 t thl, t tlh ou tp u t tran sitio n tim e 1.2 2.0 3.0 - - - 75 16 10 - - - 100 20 13 - - - 120 24 15 t w le pul se wi dt h hing 1.2 2.0 3.0 250 30 18 - - - 350 34 24 - - - 450 41 24 - - - t su ho ld tim e dn to le 1.2 2.0 3.0 45 15 9 - - - 50 17 10 - - - 100 15 12 - - - t h ho ld tim e dn to le 1.2 2.0 3.0 25 5 5 - - - 25 5 5 - - - 25 5 5 - - - c i input capaci t a nce 3.0 - 7 . 0 - 7 . 0 - 7 . 0 p f typical @25 q c,v cc =3.0 v c pd power di ssi pat i on capacitance per latch 80 pf used t o det e rm i n e t h e no-l o ad dy nam i c power consum pt i on: p d =c pd v 2 cc fi + | (c l v 2 cc f 0 ) where: f i = i nput freguercy i n m h z; c l = o u t p u t lo ad cap acity in p f ; f 0 = out put freguercy i n m h z; v cc = suppl y vol t a ge i n v; | (c l v 2 cc f 0 ) = sum of out put s. 4
kk74lv373 0.9 v 1 0.1 0.9 v 1 0.1 0.9 v 1 0.1 0.9 v 1 0.1 t lh t hl t phl t plh t tlh t thl v cc gnd dn v 1 = 0.5v cc qn 0 b 0.9 v 1 0.1 0.9 v 1 0.1 0.9 v 1 0.1 t lh t phl t plh t tlh t thl v cc gnd le v 1 = 0.5v cc qn v 1 0 b v 1 t w fi gure 1. sw i t chi n g waveforms fi gure 2. sw i t chi n g waveforms 0.9 v 1 0.1 0.9 v 1 0.1 t lh t hl v cc gnd oe v 1 0.9 0.1 v 1 t pzh t pzl t phz t plz qn qn v oh 0 b v cc v ol v 1 = 0.5v cc v 1 v cc gnd le v 1 v 1 v 1 v 1 v 1 t su t su t h t h dn v cc gnd v 1 = 0.5v cc fi gure 3. sw i t chi n g waveforms fi gure 4. sw i t chi n g waveforms expanded logic diagram 5
kk74lv373 n s u f f i x p l as t i c d i p (m s - 0 0 1 a d) sy m b o l m i n m a x a 24. 8 9 26. 92 b 6. 1 7 . 1 1 c 5. 33 d 0. 36 0. 56 f 1. 14 1. 78 g h j 0 10 k 2. 92 3. 81 no t e s : l 7. 62 8. 26 1. d i m e n s i o n s ?a ?, ?b ? d o n o t i n cl u d e m o l d f l as h o r p r o t r u s i o n s . m 0. 2 0 . 3 6 m a x i m u m m o l d f l a s h o r p r o t r u s i o n s 0. 25 m m ( 0 . 010) p e r s i d e . n 0. 38 d su f f i x so i c (m s - 0 1 3 a c) sy m b o l m i n m a x a 12. 6 1 3 b 7. 4 7 . 6 c 2. 35 2. 65 d 0. 33 0. 51 f 0. 4 1 . 2 7 g h no t e s : j 0 8 1. d i m e n s i o ns a a n d b d o no t i n c l ud e m o l d f l a s h o r pr o t r u s i on . k 0. 1 0 . 3 2. m a x i m u m m o l d fl a s h o r p r o t ru s i o n 0 . 1 5 m m (0 . 0 0 6 ) p e r s i d e m 0. 23 0. 32 f o r a ; fo r b ? 0. 25 m m ( 0 . 010) p e r s i d e . p 10 10. 65 r 0. 25 0. 75 d i me n s i o n , mm 1. 27 9. 53 d i me n s i o n , mm 2. 54 7. 62 a b h c k c m j f m p g d r x 4 5 se a t i n g pl a n e 0.2 5 ( 0 . 0 1 0 ) m t -t - 1 20 10 11 l h m j a b f g d se a t i n g pl an e n k 0.2 5 ( 0 . 010) m t -t - c 1 20 10 11 6
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