1 ps8483 03/23/01 product description pericom semiconductor?s pi74avc + series of logic circuits are produced using the company?s advanced submicron cmos technology, achieving industry leading speed. the pi74avc+16721 is a 20-bit flip-flop with 3-state outputs designed specifically for 1.65v to 3.6v v cc operation. the device is designed with edge-triggered d-type flip-flops with qualified clock storage. on the positive transition of clock (clk) input, the device provides true data at the q outputs, provided that the clock-enable (clken) input is low. if clken is high, no data is stored. a buffered output-enable (oe) input can be used to place the 20 outputs in either a normal logic state (high or low level) or a high-impedance state. in the high-impedance state, the outputs neither load nor drive the bus lines significantly. the high-impedance state and increased drive provide the capacity to drive bus lines without the need for interface or pullup components. oe does not affect the internal operation of the flip-flops. old data can be retained or new data can be entered while the outputs are in the high- impedance state. to ensure the high-impedance state during 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. 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pi74avc+16721 2.5v 20-bit flip-flop with 3-state outputs logic block diagram 1 56 29 55 2 product features ? pi74avc + 16721 is designed for low-voltage operation, v cc = 1.65v to 3.6v ? true 24ma balanced drive @ 3.3v ? i off supports partial power-down operation ? 3.6v i/o tolerant inputs and outputs ? all outputs contain a patented ddc (dynamic drivecontrol) circuit that reduces noise without degrading propagation delay. ? industrial operation: ?40c to +85c ? available packages: ? 56-pin 240 mil wide plastic tssop (a) ? 56-pin 173 mil wide plastic tvsop (tssop) (k)
pi74avc+16721 2.5v 20-bit flip-flop with 3-state outputs 2 ps8483 03/23/01 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 s t u p n is t u p t u o e on e k l ck l cx dx q lh xx q 0 ll ? h h ll ? l l ll h r o lxq 0 hx x x z product pin description truth table (1) product pin configuration notes: 1. h = high signal level l = low signal level x = don't care or irrelevant z = high impedance - = low-to-high transition 1 oe q1 q2 gnd q3 q4 vcc q5 q6 q7 gnd q8 q9 q10 q11 q12 q13 gnd q14 q15 q16 vcc q17 q18 gnd q19 q20 nc clk d1 d2 gnd d3 d4 vcc d5 d6 d7 gnd d8 d9 d10 d11 d12 d13 gnd d14 d15 d16 vcc d17 d18 gnd d19 d20 clken 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 25 26 27 28 32 31 30 29 56-pin a, v e m a n n i pn o i t p i r c s e d e o) w o l e v i t c a ( t u p n i e l b a n e t u p t u o n e k l c) w o l e v i t c a ( t u p n i e l b a n e k c o l c k l c) h g i h e v i t c a ( t u p n i k c o l c x ds t u p n i a t a d x qs t u p t u o e t a t s - 3 d n gd n u o r g v c c r e w o p
pi74avc+16721 2.5v 20-bit flip-flop with 3-state outputs 3 ps8483 03/23/01 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 recommended operating conditions (1) notes: 1. all unused inputs must be held at v cc or gnd to ensure proper device operation. . n i m. x a ms t i n u v c c e g a t l o v y l p p u s g n i t a r e p o 5 6 . 16 . 3 v y l n o n o i t n e t e r a t a d 2 . 1 v h i e g a t l o v t u p n i l e v e l - h g i hv c c v 2 . 1 =v c c v c c v 5 9 . 1 o t v 5 6 . 1 = x 5 6 . 0v c c v c c v 7 . 2 o t v 3 . 2 =7 . 1 v c c v 6 . 3 o t v 3 = 2 v l i e g a t l o v t u p n i l e v e l - w o lv c c v 2 . 1 =d n g v c c v 5 9 . 1 o t v 5 6 . 1 = x 5 3 . 0v c c v c c v 7 . 2 o t v 3 . 2 = 7 . 0 v c c v 6 . 3 o t v 3 =8 . 0 v i e g a t l o v t u p n i 06 . 3 v o e g a t l o v t u p t u oe t a t s e v i t c a0v c c e t a t s - 3 06 . 3 i h o t n e r r u c t u p t u o l e v e l - h g i hv c c v 5 9 . 1 o t v 5 6 . 1 =6 ? a m v c c v 7 . 2 o t v 3 . 2 = 2 1 ? v c c v 6 . 3 o t v 3 =4 2 ? i l o t n e r r u c t u p t u o l e v e l - w o l v c c v 5 9 . 1 o t v 5 6 . 1 = 6 v c c v 7 . 2 o t v 3 . 2 = 2 1 v c c v 6 . 3 o t v 3 =4 2 d t d e t a r l l a f r o e s i r n o i t i s n a r t t u p n i vv c c v 6 . 3 o t v 5 6 . 1 =5v / s n 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 o 0 4 ?5 8c maximum ratings (above which the useful life may be impaired. for user guidelines, not tested.) supply voltage range, v cc ................................................................. ?0.5v to +4.6v input voltage range, v i ........................................................................ ?0.5v to +4.6v voltage range applied to any output in the high-impedance or power-off state, v o (1) ............................... ?0.5v to +4.6v voltage range applied to any output in the high or low state, v o (1,2) ......................................................... ?0.5v to v cc +0.5v input clamp current, i ik (v i <0) ........................................................ ?50ma output clamp current, i ok (v o <0) ................................................... ?50ma continuous output current, i o .......................................................................... 50ma continuous current through each v cc or gnd ............................. 100ma package thermal impedance, q ja (3) : package a ............................ 64c/w package k ............................ 48c/w storage temperature range, t stg ............................................ ?65c to 150c notes: 1. input & output negative-voltage ratings may be ex- ceeded if the input and output curent rating are ob- served. 2. output positive-voltage rating may be exceeded up to 4.6v maximum if theoutput current rating is observed. 3. the package thermal impedance is calculated in accor- dance with jesd 51. 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 specifica- tion is not implied. exposure to absolute maximum rating conditions for extended periods may affect reli- ability.
pi74avc+16721 2.5v 20-bit flip-flop with 3-state outputs 4 ps8483 03/23/01 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 s r e t e m a r a ps n o i t i d n o c t s e t ) 1 ( v c c . n i m. p y t. x a ms t i n u v h o i h o 0 0 1 ? = m av 6 . 3 o t v 5 6 . 1v c c v 2 . 0 ? v i h o 6 ? =m v a h i v 7 0 . 1 =v 5 6 . 12 . 1 i h o 2 1 ? =m v a h i v 7 . 1 =v 3 . 25 7 . 1 i h o 4 2 ? =m v a h i v 2 =v 30 . 2 v l o i l o 0 0 1 = m av 6 . 3 o t v 5 6 . 12 . 0 i l o 6 =m v a h i v 7 5 . 0 =v 5 6 . 15 4 . 0 i l o 2 1 =m v a h i v 7 . 0 =v 3 . 25 5 . 0 i l o 4 2 =m v a h i v 8 . 0 =v 38 . 0 i i s t u p n i l o r t n o cv i v = c c d n g r ov 6 . 35 . 2 m a i f f o v i v r o o v 6 . 3 =0 0 1 i z o v i v = c c d n g r ov 6 . 30 1 i c c v o v = c c i d n g r o o 0 =v 6 . 30 4 c i s t u p n i l o r t n o cv i v = c c d n g r ov 5 . 24 f p v 3 . 34 s t u p n i a t a dv 5 . 26 v 3 . 36 c o s t u p t u ov o v = c c d n g r ov 5 . 28 v 3 . 38 note: 1. typical values are measured at t a = 25c. dc electrical characteristics (over the operating range, t a = ?40c +85c)
pi74avc+16721 2.5v 20-bit flip-flop with 3-state outputs 5 ps8483 03/23/01 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 v c c v 2 . 1 = v c c v 5 . 1 = v 1 . 0 v c c v 8 . 1 = v 5 1 . 0 v c c v 5 . 2 = v 2 . 0 v c c v 3 . 3 = v 3 . 0 s t i n u . n i m. x a m. n i m. x a m. n i m. x a m. n i m. x a m. n i m. x a m f k c o l c y c n e u q e r f k c o l c0 5 10 8 10 8 1z h m t w w o l r o h g i h k l c , n o i t a r u d e s l u p0 . 60 . 30 . 3 s n t u s e m i t p u t e sk l c e r o f e b a t a d - 7 . 55 . 34 . 2 k l c e r o f e b n e k l c - 2 . 20 . 26 . 1 t h e m i t d l o h k l c r e t f a a t a d - 000 k l c r e t f a n e k l c - 2 . 10 . 10 . 1 timing requirements (over recommended operating free-air temperature range, unless otherwise noted, see figures 1 thru 4) switching characteristics (over recommended operating free-air temperature range, unless otherwise noted, see figures 1 thru 4) operating characteristics, t a = 25 c s r e t e m a r a ps n o i t i d n o c t s e t v 8 . 1 = c c v v 5 1 . 0 v 5 . 2 = c c v v 2 . 0 v 3 . 3 = c c v v 3 . 0 s t i n u l a c i p y tl a c i p y tl a c i p y t c d p e c n a t i c a p a c n o i t a p i s s i d r e w o p d e l b a n e s t u p t u o c l , f p 0 = z h m 0 1 = f 5 60 80 0 1 f p d e l b a s i d s t u p t u o0 40 55 7 s r e t e m a r a p m o r f ) t u p n i ( o t ) t u p t u o ( v c c v 2 . 1 = v c c v 5 . 1 = v 1 . 0 v c c v 8 . 1 = v 5 1 . 0 v c c v 5 . 2 = v 2 . 0 v c c v 3 . 3 = v 3 . 0 s t i n u . n i m. x a m. n i m. x a m. n i m. x a m. n i m. x a m. n i m. x a m f x a m 0 5 10 8 10 8 1z h m t d p k l cq 3 . 40 . 36 . 2 s n t n e e oq 8 . 58 . 40 . 4 t s i d e oq 8 . 46 . 34 . 3
pi74avc+16721 2.5v 20-bit flip-flop with 3-state outputs 6 ps8483 03/23/01 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 parameter measurement information v cc = 1.2v and 1.5v 0.1v load circuit voltage waveforms propagation delay times voltage waveforms enable and disable times voltage waveforms pulse duration t s e t1 s t d p t z l p t / l z p t z h p t / h z p n e p o v x 2 c c d n g notes: a. c l includes probe and jig capacitance. b. 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. c. all input impulses are supplied by generators having the following characteristics: prr 10 mhz, z o = 50 w , t r 2.0ns, t f 2.0ns. d. the outputs are measured one at a time with one transition per measurement. e. t plz and t phz are the same as t dis f. t pzl and t pzh are the same as t en g. t plh and t phl are the same as t pd figure 1. load circuit and voltage waveforms 2 w 2 w 2xv cc open gnd s1 from output under test cl = 15pf (see note a) t pzl output control (low level enabling) 0v v cc /2 v cc /2 v cc /2 v cc /2 t plz t phz v ol v cc 0v t pzh +0.1v C0.1v output waveform 1 s1 at 2 x v cc (see note b) output waveform 2 s1 at gnd (see note b) v oh v oh v ol v cc input t plh t phl 0v output v oh v ol v cc /2 v cc /2 v cc /2 v cc v cc /2 input t w v cc /2 v cc v cc /2 0v data input t su t h v cc /2 v cc v cc /2 0v v cc 0v timing input v cc /2 voltage waveforms setup and hold times
pi74avc+16721 2.5v 20-bit flip-flop with 3-state outputs 7 ps8483 03/23/01 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 parameter measurement information v cc = 1.8v 0.15v load circuit voltage waveforms propagation delay times voltage waveforms enable and disable times voltage waveforms pulse duration t s e t1 s t d p t z l p t / l z p t z h p t / h z p n e p o v x 2 c c d n g notes: a. c l includes probe and jig capacitance. b. 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. c. all input impulses are supplied by generators having the following characteristics: prr 10 mhz, z o = 50 w , t r 2.0ns, t f 2.0ns. d. the outputs are measured one at a time with one transition per measurement. e. t plz and t phz are the same as t dis f. t pzl and t pzh are the same as t en g. t plh and t phl are the same as t pd figure 2. load circuit and voltage waveforms 2 w 2 w 2xv cc open gnd s1 from output under test cl = 15pf (see note a) t pzl output control (low level enabling) 0v v cc /2 v cc /2 v cc /2 v cc /2 t plz t phz v ol v cc 0v t pzh +0.1v C0.1v output waveform 1 s1 at 2 x v cc (see note b) output waveform 2 s1 at gnd (see note b) v oh v oh v ol v cc input t plh t phl 0v output v oh v ol v cc /2 v cc /2 v cc /2 v cc v cc /2 input t w v cc /2 v cc v cc /2 0v data input t su t h v cc /2 v cc v cc /2 0v v cc 0v timing input v cc /2 voltage waveforms setup and hold times 1 k w 1 k w 0.15v 0.15v 30
pi74avc+16721 2.5v 20-bit flip-flop with 3-state outputs 8 ps8483 03/23/01 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 parameter measurement information v cc = 2.5v 0.2v load circuit voltage waveforms propagation delay times voltage waveforms enable and disable times voltage waveforms pulse duration t s e t1 s t d p t z l p t / l z p t z h p t / h z p n e p o v x 2 c c d n g notes: a. c l includes probe and jig capacitance. b. 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. c. all input impulses are supplied by generators having the following characteristics: prr 10 mhz, z o = 50 w , t r 2.0ns, t f 2.0ns. d. the outputs are measured one at a time with one transition per measurement. e. t plz and t phz are the same as t dis f. t pzl and t pzh are the same as t en g. t plh and t phl are the same as t pd figure 3. load circuit and voltage waveforms 2 w 2 w 2xv cc open gnd s1 from output under test cl = 15pf (see note a) t pzl output control (low level enabling) 0v v cc /2 v cc /2 v cc /2 v cc /2 t plz t phz v ol v cc 0v t pzh +0.15v C0.15v output waveform 1 s1 at 2 x v cc (see note b) output waveform 2 s1 at gnd (see note b) v oh v oh v ol v cc input t plh t phl 0v output v oh v ol v cc /2 v cc /2 v cc /2 v cc v cc /2 input t w v cc /2 v cc v cc /2 0v data input t su t h v cc /2 v cc v cc /2 0v v cc 0v timing input v cc /2 voltage waveforms setup and hold times 500 w 500 w 30
pi74avc+16721 2.5v 20-bit flip-flop with 3-state outputs 9 ps8483 03/23/01 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 parameter measurement information v cc = 3.3v 0.3v load circuit voltage waveforms propagation delay times voltage waveforms enable and disable times voltage waveforms pulse duration t s e t1 s t d p t z l p t / l z p t z h p t / h z p n e p o v x 2 c c d n g notes: a. c l includes probe and jig capacitance. b. 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. c. all input impulses are supplied by generators having the following characteristics: prr 10 mhz, z o = 50 w , t r 2.0ns, t f 2.0ns. d. the outputs are measured one at a time with one transition per measurement. e. t plz and t phz are the same as t dis f. t pzl and t pzh are the same as t en g. t plh and t phl are the same as t pd figure 4. load circuit and voltage waveforms 2 w 2 w 2xv cc open gnd s1 from output under test cl = 15pf (see note a) t pzl output control (low level enabling) 0v v cc /2 v cc /2 v cc /2 v cc /2 t plz t phz v ol v cc 0v t pzh +0.1v C0.1v output waveform 1 s1 at 2 x v cc (see note b) output waveform 2 s1 at gnd (see note b) v oh v oh v ol v cc input t plh t phl 0v output v oh v ol v cc /2 v cc /2 v cc /2 v cc v cc /2 input t w v cc /2 v cc v cc /2 0v data input t su t h v cc /2 v cc v cc /2 0v v cc 0v timing input v cc /2 voltage waveforms setup and hold times 500 w 500 w 0.3v 0.3v 30
pi74avc+16721 2.5v 20-bit flip-flop with 3-state outputs 10 ps8483 03/23/01 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 1234567890123456789012345678901212345678901234567890123456789012123456789012345678901234567890121234567890123456789012345678901 2123456789012 pericom semiconductor corporation 2380 bering drive ? san jose, ca 95131 ? 1-800-435-2336 ? fax (408) 435-1100 ? http://www.pericom.com 56-pin 240-mil, wide plastic tssop (a) package 56-pin 173-mil, wide plastic tvsop (tssop) (k) package .002 .006 seating plane .007 .011 .004 .008 1 56 .236 .244 0.50 0.17 0.27 0.05 0.15 0.09 0.20 x.xx x.xx denotes dimensions in millimeters .018 .030 0.45 0.75 .047 max. 1.20 6.0 6.2 .547 .555 13.9 14.1 .319 8.1 .0197 bsc bsc .047 .031 .041 seating plane .016 bsc 1 56 .169 .177 11.20 11.40 4.30 4.50 1.20 0.40 0.13 0.23 0.80 1.05 x.xx x.xx denotes dimensions in millimeters .002 .006 0.05 0.15 .0035 .008 0.09 0.20 .018 .030 0.45 0.75 6.4 .252 bsc .005 .009 .441 .449 max. ordering information a t a d g n i r e d r on o i t p i r c s e d a 1 2 7 6 1 + c v a 4 7 i p p o s s t c i t s a l p e d i w l i m - 0 4 2 , n i p - 6 5 k 1 2 7 6 1 + c v a 4 7 i p p o s v t c i t s a l p e d i w l i m - 3 7 1 , n i p - 6 5
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