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datasheet low skew pci/pci-x buffer i cs2 3 0 4 n z -1 idt? low skew pci/pci-x buffer 1 ICS2304NZ-1 rev g 110110 description the ICS2304NZ-1 is a high-performance, low skew, low jitter pci/pci-x clock driver. it is designed to distribute high-speed signals in pci/pci-x applications operating at speeds from 0 to 140 mhz. the ICS2304NZ-1 is characterized for operation from -40c to +85c for automotive and industrial applications. features packaged in 8-pin tssop (4.4 mm body) frequency range of 0 to 140 mhz less than 100 ps skew between outputs distribute one clock input to one bank of four outputs operating voltage of 3.3 v 10% available in commercial and industrial temperature ranges block diagram logic control oe clk_in clk2 clk1 clk0 clk3
ICS2304NZ-1 low skew pci/pci-x buffer fan out buffer idt? low skew pci/pci-x buffer 2 ICS2304NZ-1 rev g 110110 pin assignment functionality table pin descriptions clk_in oe clk0 clk2 gnd vdd clk1 clk3 12 3 4 87 6 5 inputs outputs clk_in oe clk(3:0) 0 0 tristate 01 0 1 0 tristate 11 1 pin number pin name pin type pin description 1 clk_in input input reference frequency. 2 oe input output enable. when oe is low, it tri-states clock outputs. 3 clk0 output buffered clock output. 4 gnd power connect to ground. 5 clk1 output buffered clock output. 6 vdd power power supply for 3.3 v. 7 clk2 output buffered clock output. 8 clk3 output buffered clock output.
ICS2304NZ-1 low skew pci/pci-x buffer fan out buffer idt? low skew pci/pci-x buffer 3 ICS2304NZ-1 rev g 110110 absolute maximum ratings stresses above the ratings listed below can cause perm anent damage to the ICS2304NZ-1. these ratings, which are standard values for idt commercially rated parts, are stress ratings only. functi onal operation of the device at these or any other conditions above those indicated in the operational sections of the specificat ions is not implied. exposure to absolute maximum rating conditions for exte nded periods can affect product reliability. electrical parameters are guaranteed only over the recommended operating temperature rang e. notes: 1. the input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed. 2. this value is limited to 4.6 v maximum. 3. the package thermal impedance is calculated in accordance with jesd 51. recommended operation conditions timing requirements over r ecommended ranges of supply volt age and operat ing free-air temperature item rating supply voltage range, v dd -0.5 v to 4.3 v input voltage range, v i (see notes 1 and 2) -0.5 v to v dd + 0.5 v output voltage range, v o (see notes 1 and 2) -0.5 v to v dd + 0.5 v input clamp current, i ik (v i <0 or v i >v dd ) 5 0 m a output clamp current, i ik (v o <0 or v o ) 5 0 m a continuous total output current, i o (v o = 0 to v dd ) 5 0 m a package thermal impedance, ja (see note 3): pw package 230.5 c/w storage temperature range, t stg -65 c to 150 c parameter min. typ. max. units supply voltage, v dd 33 . 33 . 6v high-level input voltage, v ih 0.7 x v dd v low-level input voltage, v il 0.3 x v dd v input voltage, v i 0v dd v high-level output current, i oh -24 ma low-level output current, i ol 24 ma operating free-air temperature, t a -40 ? +85 c min. typ. max. units clock frequency, f clk 0 140 mhz
ICS2304NZ-1 low skew pci/pci-x buffer fan out buffer idt? low skew pci/pci-x buffer 4 ICS2304NZ-1 rev g 110110 electrical characteristics at 3.3 v over recommended free-air temperature range vdd = 3.3 v 10%, t a = -40c to +85c (unless stated otherwise) note 1: guaranteed by design, not 100% tested in production. parameter symbol conditions min. typ. max. units input voltage v ik v dd at 3.3 v, i i = -18 ma -1.2 v high-level output voltage v oh v dd = min to max, i oh = -1 ma v dd -0.2 3.3 v v dd = 3 v, i oh = -24 ma 2 2.3 v dd = 3 v, i oh = -12 ma 2.4 2.7 low-level output voltage v ol v dd = min to max, i oh = 1 ma 0.222 0.2 v v dd = 3 v, i ol = 24 ma 0.61 0.8 v dd = 3 v, i ol = 12 ma 0.31 0.55 high-level output current i oh v dd = 3 v, v o = 1 v -53 -40 ma v dd = 3.3 v, v o = 1.65 v -54 low-level output current i ol v dd = 3 v, v o = 2 v 40 53 ma v dd = 3.3 v, v o = 1.65 v 57 input current i i v = v dd or v o 0.1 50 a dynamic supply current i dd unloaded outputs at 66.67 mhz 13 37 ma input capacitance (note 1) c i v dd = 3.3 v, v i = 0v or 3.3 v 35p f output capacitance (note 1) c o v dd = 3.3 v, v i = 0v or 3.3 v 3.2 pf
ICS2304NZ-1 low skew pci/pci-x buffer fan out buffer idt? low skew pci/pci-x buffer 5 ICS2304NZ-1 rev g 110110 switching characteristics at 3.3 v over recommended ranges of supply voltage and operating free-air temperature vdd = 3.3 v 10%, t a = -40c to 85c (unless stated otherwise) note 1: guaranteed by design, not 100% tested in production. parameter symbol conditions min. typ. max. units high-to-low propagation delay (note 1) t plh v o = v dd /2 1.8 3.1 3.8 ns low-to-high propagation delay (note 1) t phl v o = v dd /2 1.8 2.9 3.8 ns output skew window (note 1) t sk (o) v o = v dd /2 50 100 ps pulse skew = | t plh - t phl | (note 1) t sk (p) v o = v dd /2 300 ps process skew (note 1) t sk (pr) v o = v dd /2 500 ps clkin high time (note1) t high 66 mhz 6 ns 140 mhz 3 ns clkin low time (note1) t low 66 mhz 6 ns 140 mhz 3 ns rise time (note 1) t r v ol =0.8 v, v oh =2.0 v 1.2 2.0 ns fall time (note 1) t f v oh =2.0 v, v ol =0.8 v 1.2 2.0 ns cycle-to-cycle jitter t cyc-cyc loaded outputs 200 ps jitter, 1-sigma t j 1 s 10,000 cycles 14 40 ps
ICS2304NZ-1 low skew pci/pci-x buffer fan out buffer idt? low skew pci/pci-x buffer 6 ICS2304NZ-1 rev g 110110 parameter measureme nt information figure 2. voltage thresholds for propagation delay (t pd ) measurements figure 3. output skew figure 4. clock waveform clk0-clk3 0.8 v 2.0 v 50% vdd 0.8 v 2.0 v 50% vdd clkin 50% vdd 0v v oh v ol t r t f t plh t phl vdd 50% vdd any clk t sk(p) any clk 50% vdd 0.2 v dd 0.5 v dd t cyc t high t low v test v ih (min) v il (max) 0.4 v dd peak-to-peak (minimum) parameter value unit v ih (min) v il (max) v test 0.5 v dd 0.4 v dd 0.35 v dd vv v
ICS2304NZ-1 low skew pci/pci-x buffer fan out buffer idt? low skew pci/pci-x buffer 7 ICS2304NZ-1 rev g 110110 figure 5. supply current vs. frequency figure 6. high-level output voltage vs. high-level output current voh - high-level output voltage (v)
ICS2304NZ-1 low skew pci/pci-x buffer fan out buffer idt? low skew pci/pci-x buffer 8 ICS2304NZ-1 rev g 110110 figure 7. low-level output voltag e vs. low-level output current vol - low-level output voltage (v)
ICS2304NZ-1 low skew pci/pci-x buffer fan out buffer idt? low skew pci/pci-x buffer 9 ICS2304NZ-1 rev g 110110 marking diagram (commercial) marking diagram (industrial) notes: 1. ###### is the lot number. 2. yyww is the last two digits of the year and week that the part was assembled. 3. ?l? denotes pb (lead) free package. bottom top yyww 304nl 14 5 8 ###### bottom top ###### yyww 04nil 14 5 8
ICS2304NZ-1 low skew pci/pci-x buffer fan out buffer idt? low skew pci/pci-x buffer 10 ICS2304NZ-1 rev g 110110 package outline and package dimensions (8-pin tssop, 4.40 mm body, 0.65 mm pitch) package dimensions are kept current with jedec publication no. 95, mo-153 ordering information ?lf? suffix to the part number are the pb-free configuratio n, rohs compliant. while the information presented herein has been checked for both accuracy and reliability, idt assumes no responsibility for ei ther its use or for the infringement of any patents or other rights of third pa rties, which would result from its use. no other circuits, pa tents, 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 envi ronmental requirements are not re commended without additional p rocessing by idt. idt reserves the right to change any circuitry or spec ifications without notice. idt does not authorize or warrant any idt product for use in life support devices or critical medical instruments. part / order number marking shipping packaging package temperature 2304nzg-1lf see page 9 tubes 8-pin tssop 0 to +70 c 2304nzg-1lft tape and reel 8-pin tssop 0 to +70 c 2304nzgi-1lf tubes 8-pin tssop -40 to +85 c 2304nzgi-1lft tape and reel 8-pin tssop -40 to +85 c index area 1 2 8 d e1 e seating plane a1 a a2 e - c - b aaa c c l millimeters inches symbol min max min max a- - 1 . 2 0 - - 0 . 0 4 7 a1 0.05 0.15 0.002 0.006 a2 0.80 1.05 0.032 0.041 b 0.19 0.30 0.007 0.012 c 0.09 0.20 0.0035 0.008 d 2.90 3.10 0.114 0.122 e 6.40 basic 0.252 basic e1 4.30 4.50 0.169 0.177 e 0.65 basic 0.0256 basic l 0.45 0.75 0.018 0.030 0 8 0 8 aaa -- 0.10 -- 0.004
? 2010 integrated device technology, inc. all rights reserved. product specifications subject to change without notice . idt and the idt logo are trademarks of integrated device technology, inc. accelerated thinking is a service mark of integrated device techno logy, inc. all other brands, product names a nd marks are or may be trademarks or registered trademarks used to identify products or services of their respective owners. printed in usa corporate headquarters integrated device technology, inc. www.idt.com for sales 800-345-7015 408-284-8200 fax: 408-284-2775 for tech support www.idt.com/go/clockhelp innovate with idt and accelerate your future netw orks. contact: w w w.i dt.c om ICS2304NZ-1 low skew pci/pci-x buffer fan out buffer

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