83947ayi http://www.icst.com/products/hiperclocks.html rev. b october 11, 2004 1 integrated circuit systems, inc. ics83947i l ow s kew , 1- to -9 lvcmos f anout b uffer g eneral d escription the ics83947i is a low skew, 1-to-9 lvcmos fanout buffer and a member of the hiperclocks? family of high performance clock solutions from ics. the low impedance lvcmos/lvttl out- puts are designed to drive 50 ? series or parallel terminated transmission lines. the effective fanout can be in- creased from 9 to 18 by utilizing the ability of the outputs to drive two series terminated lines. guaranteed output and part-to-part skew characteristics make the ics83947i ideal for high performance, single ended applications that also require a limited output voltage. b lock d iagram p in a ssignment f eatures ? 9 lvcmos/lvttl outputs ? selectable clk0 and clk1 can accept the following input levels: lvcmos and lvttl ? maximum output frequency: 110mhz ? output skew: 500ps (maximum) ? part-to-part skew: 2ns (maximum) ? 3.3v operating supply ? -40c to 85c ambient operating temperature ? lead-free package available ? pin compatible with the mpc947 hiperclocks? ics 32-lead lqfp 7mm x 7mm x 1.4mm package body y package top view 32 31 30 29 28 27 26 25 9 10 11 12 13 14 15 16 1 2 3 4 5 6 7 8 24 23 22 21 20 19 18 17 gnd q3 v ddo q4 gnd q5 v ddo gnd gnd clk_sel clk0 clk1 clk_en oe v dd gnd gnd q6 v ddo q7 gnd q8 v ddo gnd gnd q2 v ddo q1 gnd q0 v ddo gnd ics83947i q0 q1 q2 q3 q4 q5 q6 q7 q8 clk0 clk1 0 1 clk_en clk_sel d q le oe
83947ayi http://www.icst.com/products/hiperclocks.html rev. b october 11, 2004 2 integrated circuit systems, inc. ics83947i l ow s kew , 1- to -9 lvcmos f anout b uffer t able 1. p in d escriptions t able 2. p in c haracteristics t able 3. o utput e nable and c lock e nable f unction t able r e b m u ne m a ne p y tn o i t p i r c s e d , 7 1 , 6 1 , 2 1 , 9 , 8 , 1 2 3 , 9 2 , 5 2 , 4 2 , 0 2 d n gr e w o p. d n u o r g y l p p u s r e w o p 2l e s _ k l ct u p n ip u l l u p , w o l n e h w . 1 k l c s t c e l e s , h g i h n e h w . t u p n i t c e l e s k c o l c . s l e v e l e c a f r e t n i l t t v l / s o m c v l . 0 k l c s t c e l e s 4 , 31 k l c , 0 k l ct u p n ip u l l u p. s l e v e l e c a f r e t n i l t t v l / s o m c v l . s t u p n i k c o l c e c n e r e f e r 5n e _ k l ct u p n ip u l l u p. s l e v e l e c a f r e t n i l t t v l / s o m c v l . e l b a n e k c o l c 6e ot u p n ip u l l u p. s l e v e l e c a f r e t n i l t t v l / s o m c v l . e l b a n e t u p t u o 7v d d r e w o p. n i p y l p p u s e e r o c 1 3 , 7 2 , 2 2 , 8 1 , 4 1 , 0 1v o d d r e w o p. s n i p y l p p u s t u p t u o , 1 2 , 9 1 , 5 1 , 3 1 , 1 1 0 3 , 8 2 , 6 2 , 3 2 , 5 q , 6 q , 7 q , 8 q 0 q , 1 q , 2 q , 3 q , 4 q t u p t u o . s t u p t u o k c o l c 8 q u r h t 0 q . s l e v e l e c a f r e t n i l t t v l / s o m c v l : e t o n p u l l u p . s e u l a v l a c i p y t r o f , s c i t s i r e t c a r a h c n i p , 2 e l b a t e e s . s r o t s i s e r t u p n i l a n r e t n i o t s r e f e r s t u p n i l o r t n o ct u p t u o e on e _ k l c8 q : 0 q 0x z - i h 10 w o l 11 t u p n i k l c s w o l l o f l o b m y sr e t e m a r a ps n o i t i d n o c t s e tm u m i n i ml a c i p y tm u m i x a ms t i n u c n i e c n a t i c a p a c t u p n i 4f p 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 ) t u p t u o r e p ( 5 2f p r p u l l u p r o t s i s e r p u l l u p t u p n i 1 5k ? r n w o d l l u p r o t s i s e r n w o d l l u p t u p n i 1 5k ? r t u o e c n a d e p m i t u p t u o572 1 ?
83947ayi http://www.icst.com/products/hiperclocks.html rev. b october 11, 2004 3 integrated circuit systems, inc. ics83947i l ow s kew , 1- to -9 lvcmos f anout b uffer t able 4a. p ower s upply dc c haracteristics , v dd = v ddo = 3.3v0.3v, t a = -40c to 85c t able 4b. lvcmos/lvttl dc c haracteristics , v dd = v ddo = 3.3v0.3v, t a = -40c to 85c l o b m y sr e t e m a r a ps n o i t i d n o c t s e tm u m i n i ml a c i p y tm u m i x a ms t i n u v d d e g a t l o v y l p p u s t e r o c 0 . 33 . 36 . 3v v o d d e g a t l o v y l p p u s t u p t u o 0 . 33 . 36 . 3v i d d t n e r r u c y l p p u s t u p n i 3 30 5a m l o b m y sr e t e m a r a ps n o i t i d n o c t s e tm u m i n i ml a c i p y tm u m i x a ms t i n u v h i e g a t l o v h g i h t u p n i 26 . 3v v l i e g a t l o v w o l t u p n i 8 . 0v i n i t n e r r u c t u p n i , l e s _ k l c , 1 k l c , 0 k l c n e _ k l c , e o 0 0 1 -a v h o e g a t l o v h g i h t u p t u oi h o a m 0 2 - =5 . 2v v l o e g a t l o v w o l t u p t u oi l o a m 0 2 =4 . 0v a bsolute m aximum r atings supply voltage, v dd 4.6v inputs, v i -0.5v to v dd + 0.5 v outputs, v o -0.5v to v ddo + 0.5v package thermal impedance, ja 47.9c/w (0 lfpm) storage temperature, t stg -65c to 150c note: stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. these ratings are stress specifications only. functional operation of product at these conditions or any conditions be- yond those listed in the dc characteristics or ac character- istics is not implied. exposure to absolute maximum rating conditions for extended periods may affect product reliability.
83947ayi http://www.icst.com/products/hiperclocks.html rev. b october 11, 2004 4 integrated circuit systems, inc. ics83947i l ow s kew , 1- to -9 lvcmos f anout b uffer t able 5. ac c haracteristics , v dd = v ddo = 3.3v0.3v, t a = -40c to 85c l o b m y sr e t e m a r a ps n o i t i d n o c t s e tm u m i n i ml a c i p y tm u m i x a ms t i n u f x a m y c n e u q e r f t u p t u o0 1 1z h m t d p 1 e t o n , y a l e d n o i t a g a p o r pq o t k l c8 . 15 . 4s n t ) o ( k s5 , 2 e t o n ; w e k s t u p t u o n o d e r u s a e m v @ e g d e g n i s i r o d d 2 / 0 0 5s p t ) p p ( k s5 , 3 e t o n ; w e k s t r a p - o t - t r a p n o d e r u s a e m v @ e g d e g n i s i r o d d 2 / 2s n t w p h t d i w e s l u p t u p t u o 0 0 8 - 2 / d o i r e p t0 0 8 + 2 / d o i r e p ts p t s 6 e t o n ; e m i t p u t e s e l b a n e k c o l ck l c o t n e _ k l c0 s n t h 6 e t o n ; e m i t d l o h e l b a n e k c o l ck l c o t n e _ k l c1 s n t l z ,t h z 4 e t o n ; e m i t e l b a n e t u p t u o 1 1s n t z l t , z h 4 e t o n ; e m i t e l b a s i d t u p t u o 1 1s n t r e m i t e s i r t u p t u ov 0 . 2 o t v 8 . 02 . 01s n t f e m i t l l a f t u p t u ov 0 . 2 o t v 8 . 02 . 01s n t a d e r u s a e m s r e t e m a r a p l l af x a m . e s i w r e h t o d e t o n s s e l n u v m o r f d e r u s a e m : 1 e t o n d d v o t t u p n i e h t f o 2 / o d d . t u p t u o e h t f o 2 / . s n o i t i d n o c d a o l l a u q e h t i w d n a e g a t l o v y l p p u s e m a s e h t t a s t u p t u o n e e w t e b w e k s s a d e n i f e d : 2 e t o n v t a d e r u s a e m o d d . 2 / h t i w d n a s e g a t l o v y l p p u s e m a s e h t t a g n i t a r e p o s e c i v e d t n e r e f f i d n o s t u p t u o n e e w t e b w e k s s a d e n i f e d : 3 e t o n v t a d e r u s a e m e r a s t u p t u o e h t , e c i v e d h c a e n o s t u p n i f o e p y t e m a s e h t g n i s u . s n o i t i d n o c d a o l l a u q e o d d . 2 / . n o i t c u d o r p n i d e t s e t t o n . n o i t a z i r e t c a r a h c y b d e e t n a r a u g e r a s r e t e m a r a p e s e h t : 4 e t o n . 5 6 d r a d n a t s c e d e j h t i w e c n a d r o c c a n i d e n i f e d s i r e t e m a r a p s i h t : 5 e t o n . k c o l c t u p n i e h t f o e g d e g n i s i r e h t o t e v i t a l e r e r a s e m i t d l o h d n a p u t e s : 6 e t o n
83947ayi http://www.icst.com/products/hiperclocks.html rev. b october 11, 2004 5 integrated circuit systems, inc. ics83947i l ow s kew , 1- to -9 lvcmos f anout b uffer t pd v dd 2 v ddo 2 p arameter m easurement i nformation p ropagation d elay o utput r ise /f all t ime o utput d uty c ycle /p ulse w idth /p eriod clock outputs 0.8v 2v 2v 0.8v t r t f t sk(o) v ddo 2 v ddo 2 qx qy o utput s kew p art - to -p art s kew 3.3v o utput l oad ac t est c ircuit scope qx lvcmos t sk(pp) v ddo 2 v ddo 2 qx qy part 1 part 2 clk0, clk1 q0:q8 -1.65v 0.15v 1.65v 0.15v pulse width t period t pw t period odc = v ddo 2 q0:q8 v dd gnd
83947ayi http://www.icst.com/products/hiperclocks.html rev. b october 11, 2004 6 integrated circuit systems, inc. ics83947i l ow s kew , 1- to -9 lvcmos f anout b uffer r eliability i nformation t ransistor c ount the transistor count for ics83947i is: 1040 t able 6. ja vs . a ir f low t able for 32 l ead lqfp ja by velocity (linear feet per minute) 0 200 500 single-layer pcb, jedec standard test boards 67.8c/w 55.9c/w 50.1c/w multi-layer pcb, jedec standard test boards 47.9c/w 42.1c/w 39.4c/w note: most modern pcb designs use multi-layered boards. the data in the second row pertains to most designs.
83947ayi http://www.icst.com/products/hiperclocks.html rev. b october 11, 2004 7 integrated circuit systems, inc. ics83947i l ow s kew , 1- to -9 lvcmos f anout b uffer p ackage o utline - y s uffix for 32 l ead lqfp t able 7. p ackage d imensions n o i t a i r a v c e d e j s r e t e m i l l i m n i s n o i s n e m i d l l a l o b m y s a b b m u m i n i ml a n i m o nm u m i x a m n 2 3 a - -- -0 6 . 1 1 a 5 0 . 0- -5 1 . 0 2 a 5 3 . 10 4 . 15 4 . 1 b 0 3 . 07 3 . 05 4 . 0 c 9 0 . 0- -0 2 . 0 d c i s a b 0 0 . 9 1 d c i s a b 0 0 . 7 2 d . f e r 0 6 . 5 e c i s a b 0 0 . 9 1 e c i s a b 0 0 . 7 2 e . f e r 0 6 . 5 e c i s a b 0 8 . 0 l 5 4 . 00 6 . 05 7 . 0 0 - - 7 c c c - -- -0 1 . 0 reference document: jedec publication 95, ms-026
83947ayi http://www.icst.com/products/hiperclocks.html rev. b october 11, 2004 8 integrated circuit systems, inc. ics83947i l ow s kew , 1- to -9 lvcmos f anout b uffer t able 8. o rdering i nformation while the information presented herein has been checked for both accuracy and reliability, integrated circuit systems, incorpor ated (ics) assumes no responsibility for either its use or for infringement of any patents or other rights of third parties, which would result from its use. no other circuits, patent s, or licenses are implied. this product is intended for use in normal commercial applications. any other applications such as those requiring extended temperature range, high reliability, or other extraordinary environmental requirements are not recommended without additional processing by ics. ics reserves the right to change any circuitry or specifications without notice. ics does not authorize or warrant any ics product for use in life support devices or critical medical instruments. r e b m u n r e d r o / t r a pg n i k r a me g a k c a pt n u o ce r u t a r e p m e t i y a 7 4 9 3 8 s c ii y a 7 4 9 3 8 s c ip f q l d a e l 2 3y a r t r e p 0 5 2c 5 8 o t c 0 4 - t i y a 7 4 9 3 8 s c ii y a 7 4 9 3 8 s c il e e r d n a e p a t n o p f q l d a e l 2 30 0 0 1c 5 8 o t c 0 4 - n l i y a 7 4 9 3 8 s c in i y a 7 4 9 3 s c i " d e l a e n n a / e e r f - d a e l " d a e l 2 3 p f q l y a r t r e p 0 5 2c 5 8 o t c 0 4 - t n l i y a 7 4 9 3 8 s c in i y a 7 4 9 3 s c i " d e l a e n n a / e e r f - d a e l " d a e l 2 3 l e e r d n a e p a t n o p f q l 0 0 0 1c 5 8 o t c 0 4 - the aforementioned trademark, hiperclocks? is a trademark of integrated circuit systems, inc. or its subsidiaries in the unite d states and/or other countries.
83947ayi http://www.icst.com/products/hiperclocks.html rev. b october 11, 2004 9 integrated circuit systems, inc. ics83947i l ow s kew , 1- to -9 lvcmos f anout b uffer t e e h s y r o t s i h n o i s i v e r v e re l b a te g a pe g n a h c f o n o i t p i r c s e de t a d a5 t4 t , e l b a t s c i t i s i r e t c a r a h c c a s t d n a h d a e r o t s n o i t i d n o c t s e t d e s i v e r - s w o r . k l c o t n e _ k l c 2 0 / 1 2 / 6 b 2 t 8 t 1 2 8 . n o i t c e s s e r u t a e f n i t e l l u b e e r f d a e l d e d d a c d e g n a h c - e l b a t s c i t s i r e t c a r a h c n i p n i . n i m f p 4 o t . x a m f p 4 m o r f r t u o 5 d e d d a ? 2 1 d n a n i m ? . x a m . t r a p e e r f - d a e l d d a - e l b a t n o i t a m r o f n i g n i r e d r o . t e e h s a t a d t u o h g u o r h t t a m r o f d e t a d p u 4 0 / 1 1 / 0 1
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