? semiconductor components industries, llc, 2006 july, 2006 ? rev. 2 1 publication order number: sn74ls393/d sn74ls393 dual 4?stage binary counter the sn74ls393 contains a pair of high-speed 4-stage ripple counters. each half of the ls393 operates as a modulo-16 binary divider, with the last three stages triggered in a ripple fashion. in the ls393, the flip-flops are triggered by a high-to-low transition of their cp inputs. each half of each circuit type has a master reset input which responds to a high signal by forcing all four outputs to the low state. ? dual versions ? individual asynchronous clear for each counter ? typical max count frequency of 50 mhz ? input clamp diodes minimize high speed termination effects guaranteed operating ranges symbol parameter min typ max unit v cc supply voltage 4.75 5.0 5.25 v t a operating ambient temperature range 0 25 70 c i oh output current ? high ? 0.4 ma i ol output current ? low 8.0 ma low power schottky soic d suffix case 751a plastic n suffix case 646 14 1 14 1 soeiaj m suffix case 965 14 1 http://onsemi.com device package shipping ordering information sn74ls393n 14 pin dip 2000 units/box SN74LS393D soic ? 14 55 units/rail SN74LS393Dr2 soic ? 14 2500/tape & reel sn74ls393m soeiaj ? 14 see note 1 sn74ls393mel soeiaj ? 14 1. for ordering information on the eiaj version of the soic package, please contact your local on semiconductor representative. see note 1
sn74ls393 http://onsemi.com 2 connection diagram dip (top view) clock (active low going edge) input to +16 (ls393) clock (active low going edge) input to 2 (ls390) clock (active low going edge) input to 5 (ls390) master reset (active high) input flip?flop outputs cp cp 0 cp 1 mr q 0 ? q 3 0.5 u.l. 0.5 u.l. 0.5 u.l. 0.5 u.l. 10 u.l. 1.0 u.l. 1.0 u.l. 1.5 u.l. 0.25 u.l. 5 u.l. notes: a) 1 ttl unit load (u.l.) = 40 a high/1.6 ma low. high low (note a) loading pin names note: the flatpak version has the same pinouts (connection diagram) as the dual in-line package. 14 13 12 11 10 9 123456 8 7 v cc cp mr q 0 q 1 q 2 q 3 cp mr q 0 q 1 q 2 q 3 gnd
sn74ls393 http://onsemi.com 3 functional description each half of the sn74ls393 operates in the modulo 16 binary sequence, as indicated in the 16 truth table. the first flip-flop is triggered by high-to-low transitions of the cp input signal. each of the other flip-flops is triggered by a high-to-low transition of the q output of the preceding flip-flop. thus state changes of the q outputs do not occur simultaneously. this means that logic signals derived from combinations of these outputs will be subject to decoding spikes and, therefore, should not be used as clocks for other counters, registers or flip-flops. a high signal on mr forces all outputs to the low state and prevents counting. sn74ls393 logic diagram (one half shown) mr cp kcp j c d q kcp j c d q kcp j c d q kcp j c d q q 0 q 1 q 2 q 3 count outputs q 3 q 2 q 1 q 0 0 1 2 3 4 5 6 7 8 9 10 11 l l l l h h h h h h h h l l h h l l h h l l h h l h l h l h l h l h l h l l l l l l l l h h h h 12 13 14 15 l l l l l l h h l h l h h h h h h = high voltage level l = low voltage level truth table
sn74ls393 http://onsemi.com 4 dc characteristics over operating temperature range (unless otherwise specified) symbol parameter limits unit test conditions min typ max v ih input high voltage 2.0 v guaranteed input high voltage for all inputs v il input low voltage 0.8 v guaranteed input low voltage for all inputs v ik input clamp diode voltage ? 0.65 ? 1.5 v v cc = min, i in = ? 18 ma v oh output high voltage 2.7 3.5 v v cc = min, i oh = max, v in = v ih or v il per truth table v ol output low voltage 0.25 0.4 v i ol = 4.0 ma v cc = v cc min, v in = v il or v ih per truth table 0.35 0.5 v i ol = 8.0 ma i ih input high current 20 a v cc = max, v in = 2.7 v 0.1 ma v cc = max, v in = 7.0 v i il input low current mr ? 0.4 ma v cc = max, v in = 0.4 v cp , cp 0 ? 1.6 ma cp 1 ? 2.4 ma i os short circuit current (note 2) ? 20 ? 100 ma v cc = max i cc power supply current 26 ma v cc = max 2. not more than one output should be shorted at a time, nor for more than 1 second. ac characteristics (t a = 25 c, v cc = 5.0 v) symbol parameter limits unit test conditions min typ max f max maximum clock frequency cp 0 to q 0 25 35 mhz c l = 15 pf f max maximum clock frequency cp 1 to q 1 20 mhz t plh t phl propagation delay, cp to q 0 12 13 20 20 ns t plh t phl cp to q 3 40 40 60 60 ns t phl mr to any output 24 39 ns ac setup requirements (t a = 25 c, v cc = 5.0 v) symbol parameter limits unit test conditions min typ max t w clock pulse width 20 ns v cc = 5.0 v t w mr pulse width 20 ns t rec recovery time 25 ns
sn74ls393 http://onsemi.com 5 ac waveforms *the number of clock pulses required between t phl and t plh measurements can be determined from the appropriate truth table. *cp q q mr & ms cp 1.3 v 1.3 v 1.3 v 1.3 v 1.3 v 1.3 v 1.3 v 1.3 v t phl t phl t plh figure 1. figure 2. t w t w t rec
sn74ls393 http://onsemi.com 6 package dimensions 17 14 8 b a dim min max min max millimeters inches a 0.715 0.770 18.16 18.80 b 0.240 0.260 6.10 6.60 c 0.145 0.185 3.69 4.69 d 0.015 0.021 0.38 0.53 f 0.040 0.070 1.02 1.78 g 0.100 bsc 2.54 bsc h 0.052 0.095 1.32 2.41 j 0.008 0.015 0.20 0.38 k 0.115 0.135 2.92 3.43 l m ??? 10 ??? 10 n 0.015 0.039 0.38 1.01 notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: inch. 3. dimension l to center of leads when formed parallel. 4. dimension b does not include mold flash. 5. rounded corners optional. f hg d k c seating plane n ? t ? 14 pl m 0.13 (0.005) l m j 0.290 0.310 7.37 7.87 n suffix plastic package case 646 ? 06 issue m
sn74ls393 http://onsemi.com 7 package dimensions notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: millimeter. 3. dimensions a and b do not include mold protrusion. 4. maximum mold protrusion 0.15 (0.006) per side. 5. dimension d does not include dambar protrusion. allowable dambar protrusion shall be 0.127 (0.005) total in excess of the d dimension at maximum material condition. ? a ? ? b ? g p 7 pl 14 8 7 1 m 0.25 (0.010) b m s b m 0.25 (0.010) a s t ? t ? f r x 45 seating plane d 14 pl k c j m dim min max min max inches millimeters a 8.55 8.75 0.337 0.344 b 3.80 4.00 0.150 0.157 c 1.35 1.75 0.054 0.068 d 0.35 0.49 0.014 0.019 f 0.40 1.25 0.016 0.049 g 1.27 bsc 0.050 bsc j 0.19 0.25 0.008 0.009 k 0.10 0.25 0.004 0.009 m 0 7 0 7 p 5.80 6.20 0.228 0.244 r 0.25 0.50 0.010 0.019 d suffix plastic soic package case 751a ? 03 issue f
sn74ls393 http://onsemi.com 8 package dimensions h e a 1 dim min max min max inches ??? 2.05 ??? 0.081 millimeters 0.05 0.20 0.002 0.008 0.35 0.50 0.014 0.020 0.18 0.27 0.007 0.011 9.90 10.50 0.390 0.413 5.10 5.45 0.201 0.215 1.27 bsc 0.050 bsc 7.40 8.20 0.291 0.323 0.50 0.85 0.020 0.033 1.10 1.50 0.043 0.059 0 0.70 0.90 0.028 0.035 ??? 1.42 ??? 0.056 a 1 h e q 1 l e 10 0 10 l e q 1 notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: millimeter. 3. dimensions d and e do not include mold flash or protrusions and are measured at the parting line. mold flash or protrusions shall not exceed 0.15 (0.006) per side. 4. terminal numbers are shown for reference only. 5. the lead width dimension (b) does not include dambar protrusion. allowable dambar protrusion shall be 0.08 (0.003) total in excess of the lead width dimension at maximum material condition. dambar cannot be located on the lower radius or the foot. minimum space between protrusions and adjacent lead to be 0.46 ( 0.018). 0.13 (0.005) m 0.10 (0.004) d z e 1 14 8 7 e a b view p c l detail p m a b c d e e 0.50 m z m suffix soeiaj package case 965 ? 01 issue o on semiconductor and are registered trademarks of semiconductor components industries, llc (scillc). scillc reserves the right to mak e changes without further notice to any products herein. scillc makes no warranty, representation or guarantee regarding the suitability of its products for an y particular purpose, nor does scillc assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including wi thout limitation special, consequential or incidental damages. ?typical? parameters which may be provided in scillc data sheets and/or specifications can and do vary in different application s and actual performance may vary over time. all operating parameters, including ?typicals? must be validated for each customer application by customer?s technical experts. scillc does not convey any license under its patent rights nor the rights of others. scillc 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 scillc product could create a sit uation where personal injury or death may occur. should buyer purchase or use scillc products for any such unintended or unauthorized application, buyer shall indemnify and hold scillc and its of ficers, employees, subsidiaries, af filiates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, direct ly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that scillc was negligent regarding the design or manufacture of the part. scillc is an equal opportunity/affirmative action employer. this literature is subject to all applicable copyright laws and is not for resale in any manner. publication ordering information n. american technical support : 800 ? 282 ? 9855 toll free usa/canada europe, middle east and africa technical support: phone: 421 33 790 2910 japan customer focus center phone: 81 ? 3 ? 5773 ? 3850 sn74ls393/d literature fulfillment : literature distribution center for on semiconductor p.o. box 5163, denver, colorado 80217 usa phone : 303 ? 675 ? 2175 or 800 ? 344 ? 3860 toll free usa/canada fax : 303 ? 675 ? 2176 or 800 ? 344 ? 3867 toll free usa/canada email : orderlit@onsemi.com on semiconductor website : www.onsemi.com order literature : http://www.onsemi.com/orderlit for additional information, please contact your local sales representative
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