CGS74CT2524M

CGS74LCT2524 CGS74LCT2524 1 to 4 Minimum Skew (300 ps) 3V Clock Driver Literature Number: SNOS710C CGS74LCT2524 1 to 4 Minimum Skew (300 ps) 3V Clock Driver General Description Features This minimum skew clock driver is a 3V option of the current CGS74CT2524 Minimum Skew Clock Driver and is designed for Clock Generation and Support (CGS) applications operating at low voltage, high frequencies. This device guarantees minimum output skew across the outputs of a given device. Skew parameters are also provided as a means to measure duty cycle requirements as those found in high speed clocking systems. This minimum skew clock driver with one input driving four outputs, is specifically designed for signal generation and clock distribution applications. ■ Ideal for low power/low noise high speed applications ■ Guaranteed: ■ ■ ■ ■ ■ ■ ■ — 300 ps pin-to-pin skew (tOSHL and tOSLH) Implemented on National's FACT™ family process 1 input to 4 outputs low skew clock distribution Symmetric output current drive: 12 mA IOH/IOL Industrial temperature of −40°C to +85°C 8-pin SOIC package Low dynamic power consumption above 20 MHz Guaranteed 2 kV ESD protection Connection Diagrams Logic Symbol Pin Assignment SOIC (MO) 1195601 The output pins act as a single entity and will follow the state of the CLK when the clock distribution chip is selected. 1195602 Pin Description Pin Names CLK O0–O3 Description Clock Input Outputs Truth Table Inputs CLK Outputs O0–O3 L H L H 1195603 See NS Package Number M08A L = Low Logic Level H = High Logic Level FACT™ is a trademark of Fairchild Semiconductor © 2011 National Semiconductor Corporation 11956 11956 Version 5 Revision 3 www.national.com Print Date/Time: 2011/09/21 13:18:34 CGS74LCT2524 1 to 4 Minimum Skew (300 ps) 3V Clock Driver OBSOLETE September 21, 2011 CGS74LCT2524 Storage Temperature (TSTG) Absolute Maximum Ratings (Note 1) Junction Temperature (θJA) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage (VCC) DC Input Voltage Diode Current (IIK) V = −0.5V V = VCC + 0.5V DC Input Voltage (VI) DC Output Diode Current (IO) V = −0.5V V = VCC + 0.5V DC Output Voltage (VO) DC Output Source or Sink Current (IO) DC VCC or Ground Current per Output Pin (ICC or IGND) −65°C to +150°C Airflow 0 225 500 LFM M 167 132 117 °C/W −0.5V to 7.0V Recommended Operating Conditions −20 mA +20 mA −0.5V to VCC +0.5V Supply Voltage (VCC) Input Voltage (VIN) Output Voltage (VO) Operating Temperature (TA) Industrial Commercial Input Rise and Fall Times (0.8V to 2.0V) −20 mA +20 mA −0.5V to VCC +0.5V ±50 mA 3.0V to 3.6V 0V to VCC 0V to VCC −40°C to +85°C 0°C to +70°C 9.6 ns max Note 1: The Absolute Maximum Ratings are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated at these limits. The parametric values defined in the DC and AC Electrical Characteristics tables are not guaranteed at the absolute maximum ratings. The Recommended Operating Conditions will define the conditions for actual device operation. ±50 mA DC Electrical Characteristics Over recommended operating conditions unless specified otherwise. Symbol VIH Parameter Minimum High Level VCC (V) Conditions CGS74LCT2524 TA = +25°C Typ TA = −40°C to +85°C Units Guaranteed Limits VOUT = 0.1V or VCC−0.1V 3.6 1.5 2.0 2.0 V VOUT = 0.1V or VCC−0.1V 3.6 1.5 0.8 0.8 V Minimum High Level VIN = VIL or VIH, IOUT = −50 μA 3.0 2.9 2.9 V Output Voltage VIN = VIL or VIH, IOH = −12 mA 3.0 2.5 2.4 V Minimum Low Level VIN = VIL or VIH, IOUT = 50 μA 3.0 0.1 0.1 V Output Voltage VIN = VIL or VIH, IOL = −12 mA 3.0 0.3 0.4 V Maximum Input VIN = VCC, GND 3.6 ±0.1 ±1.0 μA Input Voltage VIL Maximum Low Level Input Voltage VOH VOL IIN Leakage Current ICCT Maximum ICC/Input VIN = 3.0V 3.6 100 μA IOLD Minimum Dynamic VOLD = 0.8V (max) 3.6 36 mA IOHD Output Current VOHD = 2.0V (min) 3.6 −25 mA ICC Maximum Quiescent VIN = VCC or GND 3.6 10 μA 2.5 Supply Current www.national.com 2 11956 Version 5 Revision 3 Print Date/Time: 2011/09/21 13:18:34 Over recommended operating conditions unless specified otherwise. All typical values are measured at VCC = 3.3V, TA = 25°C LCT2524 VCC = 3.0V to 3.6V Symbol TA = −40°C to +85°C Parameter Units CL = 50 pF RL = 500Ω Min tPLH Low-to-High Propagation Delay Typ Max 6 15.0 ns 6 15.0 ns CLK to On tPHL High-to-Low Propagation Delay CLK to On Extended AC Electrical Characteristics Over recommended operating conditions unless specified otherwise. All typical values are measured at VCC = 3.3V, TA = 25°C LCT2524 VCC = 3.0V to 3.6V Symbol TA = −40°C to +85°C Parameter Units CL = 50 pF RL = 500Ω Min fmax Maximum Operating Frequency tOSHL Maximum Skew Common Edge Typ Max 75 MHz 300 ps 300 ps 2.5 ns 2.5 ns Output-to-Output Variation (Note 2) tOSLH Maximum Skew Common Edge Output-to-Output Variation (Note 2) tPS Maximum Skew Pin (Signal) Transition Variation (Note 3) tRISE Rise Time/Fall Time tFALL (from 0.8V to 2.0V/2.0V to 0.8V) THIGH Time High 4 ns TLOW Time Low 4 ns Note 2: 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). Limits are characterized and guaranteed by design @ 66 MHz. Note 3: Pin transition skew is the absolute difference between HIGH-to-LOW and LOW-to-HIGH propagation delay, measured at a given output pin. Note 4: Refer to Minimum Skew Parameters Measurement Information Chart for definitions of each skew specification. Note 5: Load capacitance includes the test jig. 3 11956 Version 5 Revision 3 Print Date/Time: 2011/09/21 13:18:34 www.national.com CGS74LCT2524 AC Electrical Characteristics CGS74LCT2524 Timing Diagrams 1195605 1195606 1195604 Test Circuit 1195607 RL is 500Ω CL is 50 pF for all propagation delays and skew measurements. Ordering Information (Contact NSC Marketing for specific date of availability) 1195608 www.national.com 4 11956 Version 5 Revision 3 Print Date/Time: 2011/09/21 13:18:34 CGS74LCT2524 Physical Dimensions inches (millimeters) unless otherwise noted 8-Lead (0.150″ Wide) Molded Small Outline Package, JEDEC Order Number CGS74LCT2524M NS Package Number M08A 5 11956 Version 5 Revision 3 Print Date/Time: 2011/09/21 13:18:34 www.national.com CGS74LCT2524 1 to 4 Minimum Skew (300 ps) 3V Clock Driver Notes For more National Semiconductor product information and proven design tools, visit the following Web sites at: www.national.com Products Design Support Amplifiers www.national.com/amplifiers WEBENCH® Tools www.national.com/webench Audio www.national.com/audio App Notes www.national.com/appnotes Clock and Timing www.national.com/timing Reference Designs www.national.com/refdesigns Data Converters www.national.com/adc Samples www.national.com/samples Interface www.national.com/interface Eval Boards www.national.com/evalboards LVDS www.national.com/lvds Packaging www.national.com/packaging Power Management www.national.com/power Green Compliance www.national.com/quality/green Switching Regulators www.national.com/switchers Distributors www.national.com/contacts LDOs www.national.com/ldo Quality and Reliability www.national.com/quality LED Lighting www.national.com/led Feedback/Support www.national.com/feedback Voltage References www.national.com/vref Design Made Easy www.national.com/easy www.national.com/powerwise Applications & Markets www.national.com/solutions Mil/Aero www.national.com/milaero PowerWise® Solutions Serial Digital Interface (SDI) www.national.com/sdi Temperature Sensors www.national.com/tempsensors SolarMagic™ www.national.com/solarmagic PLL/VCO www.national.com/wireless www.national.com/training PowerWise® Design University THE CONTENTS OF THIS DOCUMENT ARE PROVIDED IN CONNECTION WITH NATIONAL SEMICONDUCTOR CORPORATION (“NATIONAL”) PRODUCTS. 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