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| 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 VCC TA IOH IOL Parameter Supply Voltage Operating Ambient Temperature Range Output Current - High Output Current - Low Min 4.75 0 Typ 5.0 25 Max 5.25 70 - 0.4 8.0 Unit V C mA mA 14 1 http://onsemi.com LOW POWER SCHOTTKY PLASTIC N SUFFIX CASE 646 14 1 SOIC D SUFFIX CASE 751A ORDERING INFORMATION Device SN74LS393N SN74LS393D Package 14 Pin DIP 14 Pin Shipping 2000 Units/Box 2500/Tape & Reel (c) Semiconductor Components Industries, LLC, 1999 1 December, 1999 - Rev. 0 Publication Order Number: SN74LS393/D SN74LS393 CONNECTION DIAGRAM DIP (TOP VIEW) VCC 14 CP 13 MR 12 Q0 11 Q1 10 Q2 9 Q3 8 NOTE: The Flatpak version has the same pinouts (Connection Diagram) as the Dual In-Line Package. 1 CP 2 MR 3 Q0 4 Q1 5 Q2 6 Q3 7 GND LOADING (Note a) PIN NAMES CP CP0 CP1 MR Q0 - Q3 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 HIGH 0.5 U.L. 0.5 U.L. 0.5 U.L. 0.5 U.L. 10 U.L. LOW 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 mA HIGH/1.6 mA LOW. http://onsemi.com 2 SN74LS393 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) CP K CP CD MR J Q CD K CP J Q CD K CP J Q CD K CP J Q Q0 Q1 Q2 Q3 TRUTH TABLE OUTPUTS COUNT 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Q3 L L L L L L L L H H H H H H H H Q2 L L L L H H H H L L L L H H H H Q1 L L H H L L H H L L H H L L H H Q0 L H L H L H L H L H L H L H L H H = HIGH Voltage Level L = LOW Voltage Level http://onsemi.com 3 SN74LS393 DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified) Limits Symbol VIH VIL VIK VOH Parameter Input HIGH Voltage Input LOW Voltage Input Clamp Diode Voltage Output HIGH Voltage 2.7 - 0.65 3.5 0.25 VO OL Output LOW Voltage 0.35 IIH Input HIGH Current 0.1 MR IIL Input LOW Current CP, CP0 CP1 IOS ICC Short Circuit Current (Note 1) Power Supply Current - 20 - 0.4 - 1.6 - 2.4 - 100 26 0.5 20 V A mA mA mA mA mA mA VCC = MAX VCC = MAX VCC = MAX, VIN = 0.4 V IOL = 8.0 mA 0.4 Min 2.0 0.8 - 1.5 Typ Max Unit V V V V V Test Conditions Guaranteed Input HIGH Voltage for All Inputs Guaranteed Input LOW Voltage for All Inputs VCC = MIN, IIN = - 18 mA VCC = MIN, IOH = MAX, VIN = VIH or VIL per Truth Table IOL = 4.0 mA VCC = VCC MIN, VIN = VIL or VIH per Truth Table VCC = MAX, VIN = 2.7 V VCC = MAX, VIN = 7.0 V Note 1: Not more than one output should be shorted at a time, nor for more than 1 second. AC CHARACTERISTICS (TA = 25C, VCC = 5.0 V) Limits Symbol fMAX fMAX tPLH tPHL tPLH tPHL tPHL Parameter Maximum Clock Frequency CP0 to Q0 Maximum Clock Frequency CP1 to Q1 Propagation Delay, CP to Q0 CP to Q3 MR to Any Output Min 25 20 12 13 40 40 24 20 20 60 60 39 Typ 35 Max Unit MHz MHz ns ns ns CL = 15 pF Test Conditions AC SETUP REQUIREMENTS (TA = 25C, VCC = 5.0 V) Limits Symbol tW tW trec Parameter Clock Pulse Width MR Pulse Width Recovery Time Min 20 20 25 Typ Max Unit ns ns ns VCC = 5.0 V Test Conditions http://onsemi.com 4 SN74LS393 AC WAVEFORMS *CP 1.3 V tW tPHL 1.3 V tPLH 1.3 V 1.3 V Q Figure 1. MR & MS 1.3 V tW CP 1.3 V tPHL Q 1.3 V 1.3 V trec Figure 2. *The number of Clock Pulses required between tPHL and tPLH measurements can be determined from the appropriate Truth Table. http://onsemi.com 5 SN74LS393 PACKAGE DIMENSIONS N SUFFIX PLASTIC PACKAGE CASE 646-06 ISSUE M 14 8 B 1 7 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. INCHES MIN MAX 0.715 0.770 0.240 0.260 0.145 0.185 0.015 0.021 0.040 0.070 0.100 BSC 0.052 0.095 0.008 0.015 0.115 0.135 0.290 0.310 --- 10_ 0.015 0.039 MILLIMETERS MIN MAX 18.16 18.80 6.10 6.60 3.69 4.69 0.38 0.53 1.02 1.78 2.54 BSC 1.32 2.41 0.20 0.38 2.92 3.43 7.37 7.87 --- 10_ 0.38 1.01 A F N -T- SEATING PLANE L C K H G D 14 PL 0.13 (0.005) M J M DIM A B C D F G H J K L M N http://onsemi.com 6 SN74LS393 PACKAGE DIMENSIONS D SUFFIX PLASTIC SOIC PACKAGE CASE 751A-03 ISSUE F -A- 14 8 -B- 1 7 P 7 PL 0.25 (0.010) M B M 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. G C R X 45 _ F -T- SEATING PLANE D 14 PL 0.25 (0.010) K M M S J TB A S DIM A B C D F G J K M P R MILLIMETERS MIN MAX 8.55 8.75 3.80 4.00 1.35 1.75 0.35 0.49 0.40 1.25 1.27 BSC 0.19 0.25 0.10 0.25 0_ 7_ 5.80 6.20 0.25 0.50 INCHES MIN MAX 0.337 0.344 0.150 0.157 0.054 0.068 0.014 0.019 0.016 0.049 0.050 BSC 0.008 0.009 0.004 0.009 0_ 7_ 0.228 0.244 0.010 0.019 http://onsemi.com 7 SN74LS393 ON Semiconductor and are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any 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 without 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 applications 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 situation 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 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 SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. PUBLICATION ORDERING INFORMATION North America 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: ONlit@hibbertco.com N. American Technical Support: 800-282-9855 Toll Free USA/Canada EUROPE: LDC for ON Semiconductor - European Support German Phone: (+1) 303-308-7140 (M-F 2:30pm to 5:00pm Munich Time) Email: ONlit-german@hibbertco.com French Phone: (+1) 303-308-7141 (M-F 2:30pm to 5:00pm Toulouse Time) Email: ONlit-french@hibbertco.com English Phone: (+1) 303-308-7142 (M-F 1:30pm to 5:00pm UK Time) Email: ONlit@hibbertco.com ASIA/PACIFIC: LDC for ON Semiconductor - Asia Support Phone: 303-675-2121 (Tue-Fri 9:00am to 1:00pm, Hong Kong Time) Toll Free from Hong Kong 800-4422-3781 Email: ONlit-asia@hibbertco.com JAPAN: ON Semiconductor, Japan Customer Focus Center 4-32-1 Nishi-Gotanda, Shinagawa-ku, Tokyo, Japan 141-8549 Phone: 81-3-5487-8345 Email: r14153@onsemi.com Fax Response Line: 303-675-2167 800-344-3810 Toll Free USA/Canada ON Semiconductor Website: http://onsemi.com For additional information, please contact your local Sales Representative. http://onsemi.com 8 SN74LS393/D |
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