semiconductor technical data 1 rev 0.1 ? motorola, inc. 1997 2/97
the mc100ep221 is a low skew 1to20 differential driver, designed with clock distribution in mind. it accepts two clock sources into an input multiplexer. the input signals can be either differential or singleended if the v bb output is used. the selected signal is fanned out to 20 identical differential outputs. ? 150ps parttopart skew ? 50ps outputtooutput skew ? differential design ? v bb output ? voltage and temperature compensated outputs ? low voltage v ee range of 2.375 to 3.8v ? 75k w input pulldown resistors the ep221 is specifically designed, modeled and produced with low skew as the key goal. optimal design and layout serve to minimize gate togate skew within a device, and empirical modeling is used to determine process control limits that ensure consistent t pd distributions from lot to lot. the net result is a dependable, guaranteed low skew device. to ensure that the tight skew specification is met it is necessary that both sides of the differential output are terminated into 50 w , even if only one side is being used. in most applications, all ten differential pairs will be used and therefore terminated. in the case where fewer than ten pairs are used, it is necessary to terminate at least the output pairs on the same package side as the pair(s) being used on that side, in order to maintain minimum skew. failure to do this will result in small degradations of propagation delay (on the order of 1020ps) of the output(s) being used which, while not being catastrophic to most designs, will mean a loss of skew margin. the mc100ep221, as with most other ecl devices, can be operated from a positive v cc supply in pecl mode. this allows the ep221 to be used for high performance clock distribution in +3.3v or +2.5v systems. designers can take advantage of the ep221's performance to distribute low skew clocks across the backplane. in a pecl environment, series or thevenin line terminations are typically used as they require no additional power supplies. for more information on using pecl, designers should refer to motorola application note an1406/d. this document contains information on a product under development. motorola reserves the right to change or discontinue this product without notice.
lowvoltage 1:20 differential ecl/pecl clock driver fa suffix 52lead tqfp package case 848d03
mc100ep221 motorola timing solutions br1333 e rev 6 2 pin names function differential input pairs differential outputs active clock select input v bb output pins clkn, clkn q0:19, q0:19 clk_sel vbb function active input clk0, clk0 clk1, clk1 clk_sel 0 1 logic symbol q0 q0 0 1 clk0 clk0 clk1 clk1 clk_sel pinout: 52lead tqfp (top view) q1:18 q1:18 q19 q19 16 vcco q5b q5 q4b q4 q3b q3 q2b q2 q1b q1 q0b q0 q12 q12b q13 q13b q14 q14b q15 q15b q16 q16b q17 q17b vcco q6 q6b q7 q7b q8 q8b q9 q9b q10 q10b q11 q11b vcco vcc vcco clksel clk0 clk0b vbb clk1 clk1b vee q19b q19 q18b q18 40 41 42 43 44 45 46 47 48 49 50 51 52 25 24 23 22 21 20 19 18 17 16 15 14 12345678910111213 39 38 37 36 35 34 33 32 31 30 29 28 27 26 mc100ep211
mc100ep221 timing solutions br1333 e rev 6 3 motorola ecl dc characteristics 40 c 0 c 25 c 85 c symbol characteristic min typ max min typ max min typ max min typ max unit v oh output high voltage 1.025 0.955 0.880 1.025 0.955 0.880 1.025 0.955 0.880 1.025 0.955 0.880 v v ol output low voltage 1.810 1.705 1.620 1.810 1.705 1.620 1.810 1.705 1.620 1.810 1.705 1.620 v v ih input high voltage 1.165 0.880 1.165 0.880 1.165 0.880 1.165 0.880 v v il input low voltage 1.810 1.475 1.810 1.475 1.810 1.475 1.810 1.475 v v bb output reference voltage 1.38 1.26 1.38 1.26 1.38 1.26 1.38 1.26 v v ee power supply voltage 2.375 3.8 2.375 3.8 2.375 3.8 2.375 3.8 v i ih input high current 150 150 150 150 m a i ee power supply current ma pecl dc characteristics 40 c 0 c 25 c 85 c symbol characteristic min typ max min typ max min typ max min typ max unit v oh output high voltage (no tag) 2.275 2.345 2.420 2.275 2.345 2.420 2.275 2.345 2.420 2.275 2.345 2.420 v v ol output low voltage (no tag) 1.490 1.595 1.680 1.490 1.595 1.680 1.490 1.595 1.680 1.490 1.595 1.680 v v ih input high voltage (no tag) 2.135 2.420 2.135 2.420 2.135 2.420 2.135 2.420 v v il input low voltage (no tag) 1.490 1.825 1.490 1.825 1.490 1.825 1.490 1.825 v v bb output reference voltage (note no tag) 1.92 2.04 1.92 2.04 1.92 2.04 1.92 2.04 v v cc power supply voltage 2.375 3.8 2.375 3.8 2.375 3.8 2.375 3.8 v i ih input high current 150 150 150 150 m a i ee power supply current ma 1. these values are for v cc = 3.3v. level specifications will vary 1:1 with v cc . ac characteristics (v ee = v ee (min) to v ee (max); v cc = v cco = gnd) 40 c 0 c 25 c 85 c symbol characteristic min typ max min typ max min typ max min typ max unit condition t plh t phl propagation delay to output in (differential) in (singleended) 500 500 ps t skew withindevice skew parttopart skew (diff) 50 150 50 150 50 150 50 150 ps f max maximum input frequency 1.5 1.5 1.5 1.5 ghz v pp minimum input swing 500 500 500 500 mv v cmr common mode range v t r /t f output rise/fall time 200 200 200 200 ps 20%80%
mc100ep221 motorola timing solutions br1333 e rev 6 4 outline dimensions fa suffix plastic tqfp package case 848d03 issue c f notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: millimeter. 3. datum plane h is located at bottom of lead and is coincident with the lead where the lead exits the plastic body at the bottom of the parting line. 4. datums l, m and n to be determined at datum plane h. 5. dimensions s and v to be determined at seating plane t. 6. dimensions a and b do not include mold protrusion. allowable protrusion is 0.25 (0.010) per side. dimensions a and b do include mold mismatch and are determined at datum plane -h-. 7. dimension d does not include dambar protrusion. dambar protrusion shall not cause the lead width to exceed 0.46 (0.018). minimum space between protrusion and adjacent lead or protrusion 0.07 (0.003). ???? ???? view aa view aa 2 x r r1 ab ab view y section abab rotated 90 clockwise dim a min max min max inches 10.00 bsc 0.394 bsc millimeters a1 5.00 bsc 0.197 bsc b 10.00 bsc 0.394 bsc b1 5.00 bsc 0.197 bsc c 1.70 0.067 c1 0.05 0.20 0.002 0.008 c2 1.30 1.50 0.051 0.059 d 0.20 0.40 0.008 0.016 e 0.45 0.030 f 0.22 0.35 0.009 0.014 g 0.65 bsc 0.75 0.018 0.026 bsc j 0.07 0.20 0.003 0.008 k 0.50 ref 0.020 ref r1 0.08 0.20 0.003 0.008 s 12.00 bsc 0.472 bsc s1 6.00 bsc 0.236 bsc u 0.09 0.16 0.004 0.006 v 12.00 bsc 0.472 bsc v1 6.00 bsc 0.236 bsc w 0.20 ref 0.008 ref z 1.00 ref 0.039 ref c l x x=l, m, n 1 13 14 26 27 39 40 52 4x tips 4x n 0.20 (0.008) h lm n 0.20 (0.008) t lm 3x view y seating plane c 0.10 (0.004) t 4x q 3 4x q 2 s 0.05 (0.002) 0.25 (0.010) gage plane c2 c1 w k e z s lm m 0.13 (0.005) n s t plating base metal d j u b v b1 a s v1 a1 s1 l n m h t q 1 q g q 1 q q 3 q 2 07 12 513 07 0 0 ref 12 ref 13 5
mc100ep221 timing solutions br1333 e rev 6 5 motorola motorola reserves the right to make changes without further notice to any products herein. motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. atypicalo parameters which may be provided in motorola data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. all operating parameters, including atypicalso must be validated for each customer application by customer's technical experts. motorola does not convey any license under its patent rights nor the rights of others. motorola products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the motorola product could create a situation where personal injury or death may occur. should buyer purchase or use motorola products for any such unintended or unauthorized application, buyer shall indemnify and hold motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that motorola was negligent regarding the design or manufacture of the part. motorola and are registered trademarks of motorola, inc. motorola, inc. is an equal opportunity/affirmative action employer. how to reach us: usa / europe / locations not listed : motorola literature distribution; japan : nippon motorola ltd.; tatsumispdjldc, 6f seibubutsuryucenter, p.o. box 5405; denver, colorado 80217. 3036752140 or 18004412447 3142 tatsumi kotoku, tokyo 135, japan. 81335218315 mfax ? : rmfax0@email.sps.mot.com touchtone 6 022446609 asia / pacific : motorola semiconductors h.k. ltd.; 8b tai ping industrial park, internet : http://www.mot.com/sps/ 51 ting kok r oad, tai po, n.t., hong kong. 85226629298 mc100ep221/d ?
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