CGS74CT2525M

CGS74C2525,CGS74C2526,CGS74CT2525, CGS74CT2526 CGS74CT2525 1-to-8 Minimum Skew Clock Driver Literature Number: SNOS559 CGS74C2525 # CGS74CT2525 CGS74C2526 # CGS74CT2526 1-to-8 Minimum Skew Clock Driver The CGS ’C/CT2525 is a minimum skew clock driver with one input driving eight outputs specifically designed for signal generation and clock distribution applications. The ’2525 is designed to distribute a single clock to eight separate receivers with low skew across all outputs during both the tPLH and tPHL transitions. The ’2526 is similar to the ’2525 but contains a multiplexed clock input to allow for systems with dual clock speeds or systems where a separate test clock has been implemented. Features Y Y Y Y Y Y Y Y Y Logic Symbols These CGS devices implement National’s FACTTM family Ideal for signal generation and clock distribution Guaranteed pin to pin and part to part skew Multiplexed clock input (’2526) Guaranteed 2 kV minimum ESD protection Symmetric output current drive of 24 mA for IOL/IOH ’CT has TTL-compatible inputs These products are identical to 74AC/ACT2525 and 2526 Available as Mil/Aero versions 54AC/ACT2525 54AC/ACT2526 Connection Diagrams ’2525 Pin Assignment for DIP and SOIC ’2525 TL/F/10684 – 1 ’2526 TL/F/10684 – 3 ’2526 TL/F/10684 – 2 TL/F/10684 – 4 TRI-STATEÉ is a registered trademark of National Semiconductor Corporation. FACTTM is a trademark of National Semiconductor Corporation. C1996 National Semiconductor Corporation TL/F/10684 RRD-B30M106/Printed in U. S. A. http://www.national.com CGS74C2525 # CGS74CT2525 # CGS74C2526 # CGS74CT2526 1-to-8 Minimum Skew Clock Driver September 1995 Functional Description Truth Tables On the multiplexed clock device, the SEL pin is used to determine which CLKn input will have an active effect on the outputs of the circuit. When SEL e 1, the CLK1 input is selected and when SEL e 0, the CLK0 input is selected. The non-selected CLKn input will not have any effect on the logical output level of the circuit. The output pins act as a single entity and will follow the state of the CLK or CLK1/CLK0 pins when either the multiplexed (’2526) or the straight (’2525) clock distribution chip is selected. ’2525 Inputs Outputs CLK O0 –O7 L H L H ’2526 Inputs Pin Description Pin Names Description CLK0 CLK CLK0, CLK1 O0 – O7 SEL Clock Input (’2525) Clock Inputs (’2526) Outputs Clock Select (’2526) L H X X Outputs CLK1 SEL O0 –O7 X X L H L L H H L H L H L e Low Voltage Level H e High Voltage Level X e Immaterial ’2525 ’2526 TL/F/10684–7 http://www.national.com TL/F/10684 – 8 2 Absolute Maximum Ratings (Note 1) Recommended Operating Conditions If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/Distributors for availability and specifications. Supply Voltage (VCC) DC Input Diode Current (IIK) VI e b0.5V VI e VCC a 0.5V DC Input Voltage (VI) DC Output Diode Current (IOK) VO e 0.5V VO e VCC a 0.5V DC Output Voltage (VO) DC Output Source or Sink Current (IO) DC VCC or Ground Current per Output Pin (ICC or IGND) Storage Temperature (TSTG) Junction Temperature (iJA) Plastic (N) 14-Lead Plastic (M) 14-Lead Plastic (N) 16-Lead Plastic (M) 16-Lead Supply Voltage (VCC) ‘C’ ‘CT’ Input Voltage (VI) b 0.5V to a 7.0V b 20 mA a 0.2 mA 2.0V to 6.0V 4.5V to 5.5V 0V to VCC 0V to VCC Output Voltage (VO) Operating Temperature (TA) CGS74C/CT 54AC/ACT b 0.5V to (VCC a 0.5V) b 20 mA a 20 mA b 40§ C to a 85§ C b 55§ C to a 125§ C Input Rise and Fall Times Devices (30% to 70% of VCC) VCC e 3.3V 4.5V 5.5V Input Rise and Fall Times Devices (0.8V to 2.0V) b 0.5V to (VCC a 0.5V) g 50 mA g 50 MA 10.5 ns max 14.4 ns max 17.6 ns max 9.6 ns max Note 1: Absolute maximum ratings are those values beyond which damage to the device may occur. The databook specifications should be met, without exception, to ensure that the system design is reliable over its power supply, temperature, and output/input loading variables. National does not recommend operation of CGS circuits outside databook specifications. b 65§ C to a 150§ C 102§ C/W 128§ C/W 97§ C/W 124§ C/W DC Electrical Characteristics for CGS74C and 54AC Family Devices Over recommended operating conditions unless specified otherwise. Symbol Parameter VCC (V) CGS74C 54AC CGS74C TA e a 25§ C TA e b 55§ C to a 125§ C TA e b 40§ C to a 85§ C Typ VIH VIL VOH Conditions Guaranteed Limits Minimum High Level Input Voltage 3.0 4.5 5.5 1.5 2.25 2.75 2.1 3.15 3.85 2.1 3.15 3.85 2.1 3.15 3.85 V VOUT e 0.1V or VCC b0.1V Maximum Low Level Input Voltage 3.0 4.5 5.5 1.5 2.25 2.75 0.9 1.35 1.65 0.9 1.35 1.65 0.9 1.35 1.65 V VOUT e 0.1V or VCC b0.1V Minimum High Level Output Voltage (Note 2) 3.0 4.5 5.5 2.99 4.49 5.49 2.9 4.4 5.4 2.9 4.4 5.4 2.9 4.4 5.4 V 2.56 3.86 4.86 2.4 3.7 4.7 2.46 3.76 4.76 V 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 V 0.36 0.36 0.36 0.40 0.50 0.50 0.44 0.44 0.44 3.0 4.5 5.5 VOL Units Maximum Low Level Output Voltage (Note 2) 3.0 4.5 5.5 3.0 4.5 5.5 0.002 0.001 0.001 3 IOUT e b50 mA VIN e VIL or VIH b 12 mA b 24 mA IOH b 24 mA IOUT e 50 mA V VIN e VIL or VIH 12 mA 24 mA IOL 24 mA http://www.national.com DC Electrical Characteristics for CGS74C and 54AC Family Devices (Continued) Over recommended operating conditions unless specified otherwise. Symbol Parameter VCC (V) CGS74C 54AC CGS74C TA e a 25§ C TA e b 55§ C to a 125§ C TA e b 40§ C to a 85§ C Typ IIN IOLD IOHD ICC Maximum Input Leakage Current (Note 3) Minimum Dynamic Output Current (Note 4) Maximum Quiescent Supply Current (Note 3) 5.5 Units Conditions Guaranteed Limits g 0.1 g 1.0 g 1.0 mA VI e VCC, GND 5.5 50 75 mA VOLD e 1.65V Max 5.5 b 50 b 75 mA VOHD e 3.85V Min 80.0 80.0 mA VIN e VCC or GND 5.5 8.0 DC Electrical Characteristics for CGS74CT and 54ACT Family Devices Over recommended operating conditions unless specified otherwise. Symbol Parameter VCC (V) CGS74CT 54ACT CGS74CT TA e a 25§ C TA e b 55§ C to a 125§ C TA e b 40§ C to a 85§ C Typ Units Conditions Guaranteed Limits VIH Minimum High Level Input Voltage 4.5 5.5 1.5 1.5 2.0 2.0 2.0 2.0 2.0 2.0 V VOUT e 0.1V or VCC b0.1V VIL Maximum Low Level Input Voltage 4.5 5.5 1.5 1.5 0.8 0.8 0.8 0.8 0.8 0.8 V VOUT e 0.1V or VCC b0.1V VOH Minimum High Level Output Voltage (Note 2) 4.5 5.5 4.49 5.49 4.4 5.4 4.4 5.4 4.4 5.4 V IOUT e b50 mA 3.86 4.86 3.70 4.70 3.76 4.76 V VIN e VIL or VIH b 24 mA IOH b 24 mA 0.1 0.1 0.1 0.1 0.1 0.1 V IOUT e 50 mA 4.5 5.5 0.36 0.36 0.50 0.50 0.44 0.44 V VIN e VIL or VIH 24 mA IOL 24 mA g 0.1 g 1.0 g 1.0 mA VI e VCC, GND 1.6 1.5 mA VI e VCC b 2.1V 4.5 5.5 VOL Maximum Low Level Output Voltage (Note 2) 4.5 5.5 0.001 0.001 IIN Maximum Input Leakage Current 5.5 ICCT Maximum ICC/Input 5.5 IOLD Minimum Dynamic Output Current (Note 4) 5.5 50 75 mA VOLD e 1.65V Max 5.5 b 50 b 75 mA VOHD e 3.85V Min 160.0 80.0 mA VIN e VCC or GND IOHD ICC Maximum Quiescent Supply Current (Note 5) http://www.national.com 5.5 0.6 8.0 4 AC Electrical Characteristics Symbol Over recommended operating conditions unless specified otherwise. VCC Range (V) (Note 6) Parameter CGS74C 54AC CGS74C TA e a 25§ C CL e 50 pF TA e b55§ C to a 125§ C CL e 50 pF TA e b40§ C to a 85§ C CL e 50 pF Min Typ Max Min Max Min tPLH, tPHL Propagation Delay CLK to On (’2525) 3.3 5.0 3.0 3.2 6.5 5.0 11.0 7.8 3.0 2.5 11.0 8.2 3.0 2.9 12.5 8.1 ns tPLH, tPHL Propagation Delay CLKn to On (’2526) 3.3 5.0 3.0 3.6 7.0 5.5 13.0 7.8 3.0 3.3 14.0 8.6 ns tPLH, tPHL Propagation Delay SEL to On (’2526) 3.3 5.0 3.0 4.0 8.0 6.5 14.0 8.5 3.0 3.5 15.0 9.5 ns tOSHL Maximum Skew Common Edge Output-to-Output (Note 7) Variation tOSLH tOST tPV Typ Units Max 3.3 0.3 1.5 600 5.0 0.2 1.0 500 3.3 0.3 1.5 600 5.0 0.2 1.0 500 Maximum Skew Opposite Edge Output-to-Output (Note 7) Variation 5.0 0.4 Maximum Skew Part-to-Part Variation (Note 8) ’C2525 ’CT2525 ’C2526 5.0 3.5 ’CT2526 5.0 5.0 5.0 3.0 ps Maximum Skew Common Edge Output-to-Output (Note 7) Variation ps 1.5 1.0 1.0 ns 1.0 trise, tfall Maximum Rise/Fall Time (20% to 80% VCC) trise, tfall Maximum Rise/Fall Time (0.8V/2.0V and 2.0V/0.8V) 4.0 ns ns 4.0 0.9 3.75 1.1 ns ns AC Electrical Characteristics Over recommended operating conditions unless specified otherwise. Symbol Parameter tPLH, tPHL Propagation Delay CLK to On (’2525) tPLH, tPHL Propagation Delay CLKn to On (’2526) VCC Range (V) (Note 6) CGS74CT 54ACT CGS74CT TA e a 25§ C CL e 50 pF TA e b55§ C to a 125§ C CL e 50 pF TA e b40§ C to a 85§ C CL e 50 pF Min Typ Max 5.0 4.6 6.5 5.0 5.8 8.5 5 Min Max Units Min Max 9.0 4.0 10.1 ns 11.1 5.1 12.4 ns http://www.national.com AC Electrical Characteristics Over recommended operating conditions unless specified otherwise. (Continued) Symbol Parameter VCC Range (V) (Note 6) tPLH, tPHL Propagation Delay SEL to On (’2526) 5.0 tOSHL Maximum Skew Common Edge Output-to-Output (Note 7) Variation 5.0 Maximum Skew Common Edge Output-to-Output (Note 7) Variation Maximum Skew Opposite Edge Output-to-Output (Note 7) Variation tOSLH tOST tPV Maximum Skew Part-to-Part Variation (Note 8) CGS74CT 54ACT CGS74CT TA e a 25§ C CL e 50 pF TA e b55§ C to a 125§ C CL e 50 pF TA e b40§ C to a 85§ C CL e 50 pF Min Typ Max 5.1 8.5 12.4 Min Max Min Typ 4.4 Units Max 14.1 ns 0.2 550 ps 5.0 0.2 550 ps 5.0 0.4 1.0 ns AC2525 ACT2525 AC2526 5.0 3.5 ns ACT2526 5.0 5.0 ns 5.0 3.0 trise, tfall Maximum Rise/Fall Time (20% to 80% VCC) trise, tfall Maximum Rise/Fall Time (0.8V/2.0V and 2.0V/0.8V) 0.9 3.75 1.1 ns ns Note 2: All outputs loaded; thresholds on input associated with output under test. Note 3: IIN and ICC @ ICC for 54AC 3.0V are guaranteed to be less than or equal to the respective limit @ 25§ C is identical to CGS74C @ @ 5.5V VCC. 25§ C. Note 4: Maximum test duration 2.0 ms, one output loaded at a time. Note 5: ICC for 54ACT @ 25§ C is identical to CGS74CT @ 25§ C. Note 6: Voltage Range 5.0 is 5.0V g 0.5V, voltage range 3.3 is 3.3V g 0.3V. Note 7: Output-to-Output Skew is defined as the absolute value of the difference between the actual propagation delay for any outputs within the same packaged device. The specifications apply to any outputs switching in the same direction either HIGH to LOW (tOSHL) or LOW to HIGH (tOSLH) or in opposite directions both HL and LH (tOST). tOSHL and tOSLH are characterized and guaranteed by design @ 1 MHz. Note 8: Part-to-part skew is defined as the absolute value of the difference between the propagation delay for any outputs from device to device. The parameter is specified for a given set of conditions (i.e., capacitive load, VCC, temperature, Ý of outputs switching, etc.). Parameter guaranteed by design. Note 9: Load capacitance includes the test jig. http://www.national.com 6 Capacitance Symbol Parameter Typ Units Conditions 4.5 pF VCC e 5.0V Power Dissipation Capacitance (’2525) 820 pF – 1.2 x 10b18 (f)* pF VCC e 5.0V Power Dissipation Capacitance (’2526) 820 pF – 1.2 x 10b18 (f)* pF VCC e 5.0V CIN Input Capacitance CPD CPD *f e frequency Recommended Maximum Power Dissipation (W) TA e 25§ C LFPM TA e 85§ C PDIP SOIC PDIP 0 1.105 0.858 0.528 SOIC 0.41 225 1.493 1.055 0.714 0.504 500 1.71 1.210 0.820 0.578 Timing Diagrams TL/F/10684 – 27 TL/F/10684 – 28 Test Circuit RL is 500X CL is 50 pF for all prop delays and skew measurements. TL/F/10684 – 29 7 http://www.national.com Ordering Information The device number is used to form part of a simplified purchasing code where the package type and temperature range are defined as follows: TL/F/10684 – 26 Physical Dimensions inches (millimeters) unless otherwise noted 14-Lead Small Outline Integrated Circuit (M) NS Package Number M14A http://www.national.com 8 Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16-Lead Small Outline Integrated Circuit (M) NS Package Number M16A 14-Lead Plastic Dual-In-Line Package (N) NS Package Number N14A 9 http://www.national.com CGS74C2525 # CGS74CT2525 # CGS74C2526 # CGS74CT2526 1-to-8 Minimum Skew Clock Driver Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 16-Lead Plastic Dual-In-Line Package (N) NS Package Number N16E LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user. National Semiconductor Corporation 1111 West Bardin Road Arlington, TX 76017 Tel: 1(800) 272-9959 Fax: 1(800) 737-7018 http://www.national.com 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. National Semiconductor Europe Fax: a49 (0) 180-530 85 86 Email: europe.support @ nsc.com Deutsch Tel: a49 (0) 180-530 85 85 English Tel: a49 (0) 180-532 78 32 Fran3ais Tel: a49 (0) 180-532 93 58 Italiano Tel: a49 (0) 180-534 16 80 National Semiconductor Hong Kong Ltd. 13th Floor, Straight Block, Ocean Centre, 5 Canton Rd. Tsimshatsui, Kowloon Hong Kong Tel: (852) 2737-1600 Fax: (852) 2736-9960 National Semiconductor Japan Ltd. Tel: 81-043-299-2308 Fax: 81-043-299-2408 National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications. IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. TI assumes no liability for applications assistance or customer product design. Customers are responsible for their products and applications using TI components. To minimize the risks associated with customer products and applications, customers should provide adequate design and operating safeguards. TI does not warrant or represent that any license, either express or implied, is granted under any TI patent right, copyright, mask work right, or other TI intellectual property right relating to any combination, machine, or process in which TI products or services are used. Information published by TI regarding third-party products or services does not constitute a license from TI to use such products or services or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI. Reproduction of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Reproduction of this information with alteration is an unfair and deceptive business practice. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional restrictions. Resale of TI products or services with statements different from or beyond the parameters stated by TI for that product or service voids all express and any implied warranties for the associated TI product or service and is an unfair and deceptive business practice. TI is not responsible or liable for any such statements. TI products are not authorized for use in safety-critical applications (such as life support) where a failure of the TI product would reasonably be expected to cause severe personal injury or death, unless officers of the parties have executed an agreement specifically governing such use. Buyers represent that they have all necessary expertise in the safety and regulatory ramifications of their applications, and acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any use of TI products in such safety-critical applications, notwithstanding any applications-related information or support that may be provided by TI. Further, Buyers must fully indemnify TI and its representatives against any damages arising out of the use of TI products in such safety-critical applications. TI products are neither designed nor intended for use in military/aerospace applications or environments unless the TI products are specifically designated by TI as military-grade or "enhanced plastic." Only products designated by TI as military-grade meet military specifications. Buyers acknowledge and agree that any such use of TI products which TI has not designated as military-grade is solely at the Buyer's risk, and that they are solely responsible for compliance with all legal and regulatory requirements in connection with such use. TI products are neither designed nor intended for use in automotive applications or environments unless the specific TI products are designated by TI as compliant with ISO/TS 16949 requirements. Buyers acknowledge and agree that, if they use any non-designated products in automotive applications, TI will not be responsible for any failure to meet such requirements. Following are URLs where you can obtain information on other Texas Instruments products and application solutions: Products Applications Audio www.ti.com/audio Communications and Telecom www.ti.com/communications Amplifiers amplifier.ti.com Computers and Peripherals www.ti.com/computers Data Converters dataconverter.ti.com Consumer Electronics www.ti.com/consumer-apps DLP® Products www.dlp.com Energy and Lighting www.ti.com/energy DSP dsp.ti.com Industrial www.ti.com/industrial Clocks and Timers www.ti.com/clocks Medical www.ti.com/medical Interface interface.ti.com Security www.ti.com/security Logic logic.ti.com Space, Avionics and Defense www.ti.com/space-avionics-defense Power Mgmt power.ti.com Transportation and Automotive www.ti.com/automotive Microcontrollers microcontroller.ti.com Video and Imaging RFID www.ti-rfid.com OMAP Mobile Processors www.ti.com/omap Wireless Connectivity www.ti.com/wirelessconnectivity TI E2E Community Home Page www.ti.com/video e2e.ti.com Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2011, Texas Instruments Incorporated