English

All Products

View All >>

Xilinx Inc.(2351)

Reset
Apply
    Compare Image Name Manufacturer Pricing(USD) Quantity Weight(Kg) Size(LxWxH) Datasheet Factory Lead Time Mount Packaging Published Series Pbfree Code Part Status Moisture Sensitivity Level (MSL) Number of Terminations Termination ECCN Code Operating Supply Voltage Length RoHS Status Lead Free Contact Plating Radiation Hardening Number of Pins Additional Feature Package / Case Max Supply Voltage REACH SVHC Reach Compliance Code Min Supply Voltage Frequency Height Width Mounting Type Operating Temperature Technology Height Seated (Max) HTS Code Max Frequency JESD-609 Code Terminal Finish Terminal Position Terminal Form Peak Reflow Temperature (Cel) Supply Voltage Time@Peak Reflow Temperature-Max (s) Base Part Number Pin Count Surface Mount Terminal Pitch Subcategory Qualification Status Supply Voltage-Max (Vsup) Propagation Delay Turn On Delay Time Memory Type Number of I/O Number of Gates Output Function Programmable Type Number of Macro Cells JTAG BST Voltage Supply - Internal Number of Logic Elements/Blocks Number of Logic Elements/Cells Speed Grade Delay Time tpd(1) Max
    XC9536XL-7CSG48I XC9536XL-7CSG48I Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 1996 XC9500XL yes Active 3 (168 Hours) 48 EAR99 3.3V ROHS3 Compliant Copper, Silver, Tin 48 YES 48-FBGA, CSPBGA 3.6V 3V Surface Mount -40°C~85°C TA CMOS 1.8mm 125MHz e1 Tin/Silver/Copper (Sn95.5Ag4.0Cu0.5) BOTTOM BALL 260 3.3V 30 XC9536XL 48 0.8mm Programmable Logic Devices Not Qualified 7.5 ns 7.5 ns FLASH 36 800 MACROCELL In System Programmable (min 10K program/erase cycles) 36 YES 3V~3.6V 2 7
    XCR3032XL-10VQ44I XCR3032XL-10VQ44I Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 1996 CoolRunner XPLA3 no Active 3 (168 Hours) 44 EAR99 3.3V Non-RoHS Compliant Contains Lead No 44 YES 44-TQFP Surface Mount -40°C~85°C TA CMOS 95MHz e0 Tin/Lead (Sn85Pb15) QUAD GULL WING 225 3.3V 30 XCR3032XL 44 0.8mm Programmable Logic Devices 3.6V 10 ns 10 ns EEPROM 36 750 MACROCELL In System Programmable (min 1K program/erase cycles) 32 YES 2.7V~3.6V 2 10 9.1ns
    XC2C32A-6CP56I XC2C32A-6CP56I Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 2001 CoolRunner II no Active 3 (168 Hours) 56 EAR99 1.8V Non-RoHS Compliant 56 REAL DIGITAL DESIGN TECHNOLOGY 56-LFBGA, CSPBGA Surface Mount -40°C~85°C TA CMOS 1.35mm 200MHz e0 BOTTOM BALL 240 1.8V 30 XC2C32A 56 0.5mm Programmable Logic Devices Not Qualified 1.9V 6 ns ROMless 33 750 MACROCELL In System Programmable 32 YES 1.7V~1.9V 2 6 5.5ns
    XA9536XL-15VQG44I XA9536XL-15VQG44I Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 1998 XA9500XL XA yes Active 3 (168 Hours) 44 EAR99 3.3V 10mm ROHS3 Compliant 44 44-TQFP 10mm Surface Mount -40°C~85°C TA CMOS 64.5MHz e3 Matte Tin (Sn) QUAD GULL WING 260 3.3V 30 XA9536XL 44 0.8mm Not Qualified 3.6V 15.5 ns 15.5 ns 34 800 MACROCELL In System Programmable 36 3V~3.6V 2 15
    XCR3032XL-10CS48C XCR3032XL-10CS48C Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Bulk 1996 CoolRunner XPLA3 no Active 3 (168 Hours) 48 EAR99 3.3V 7mm Non-RoHS Compliant No 48 YES 48-FBGA, CSPBGA 7mm Surface Mount 0°C~70°C TA CMOS 1.8mm 95MHz e0 Tin/Lead (Sn63Pb37) BOTTOM BALL 240 3.3V 30 XCR3032XL 48 YES 0.8mm Programmable Logic Devices 3.6V 10 ns 10 ns EEPROM 36 750 MACROCELL In System Programmable (min 1K program/erase cycles) 32 YES 3V~3.6V 2 10 9.1ns
    XCR3032XL-10CSG48C XCR3032XL-10CSG48C Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 2003 CoolRunner XPLA3 yes Active 3 (168 Hours) 48 EAR99 3.3V 7mm ROHS3 Compliant No 48 YES 48-FBGA, CSPBGA 7mm Surface Mount 0°C~70°C TA CMOS 1.8mm 95MHz e1 Tin/Silver/Copper (Sn95.5Ag4.0Cu0.5) BOTTOM BALL 260 3.3V 30 48 0.8mm Programmable Logic Devices 3.6V 10 ns 10 ns EEPROM 36 750 MACROCELL In System Programmable (min 1K program/erase cycles) 32 YES 3V~3.6V 2 10 9.1ns
    XC9536XL-10CSG48I XC9536XL-10CSG48I Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 1996 XC9500XL yes Active 3 (168 Hours) 48 EAR99 3.3V 7mm ROHS3 Compliant Copper, Silver, Tin No 48 YES 48-FBGA, CSPBGA 3.6V 3V 7mm Surface Mount -40°C~85°C TA CMOS 1.8mm 100MHz e1 Tin/Silver/Copper (Sn95.5Ag4.0Cu0.5) BOTTOM BALL 260 3.3V 30 XC9536XL 48 0.8mm Programmable Logic Devices 10 ns 10 ns FLASH 36 800 MACROCELL In System Programmable (min 10K program/erase cycles) 36 YES 3V~3.6V 2 10
    XC9536XL-10VQ44C XC9536XL-10VQ44C Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 1998 XC9500XL no Active 3 (168 Hours) 44 EAR99 3.3V Non-RoHS Compliant Contains Lead Lead, Tin No 44 YES 44-TQFP 3.6V 3V 100MHz Surface Mount 0°C~70°C TA CMOS e0 Tin/Lead (Sn85Pb15) QUAD GULL WING 225 3.3V 30 XC9536XL 44 0.8mm Programmable Logic Devices 10 ns 10 ns FLASH 34 800 MACROCELL In System Programmable (min 10K program/erase cycles) 36 YES 3V~3.6V 2 10
    XCR3032XL-7CS48C XCR3032XL-7CS48C Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 2003 CoolRunner XPLA3 no Active 3 (168 Hours) 48 EAR99 3.3V Non-RoHS Compliant Contains Lead Lead, Tin 48 YES 48-FBGA, CSPBGA 3.6V not_compliant 3V Surface Mount 0°C~70°C TA CMOS 1.8mm 119MHz e0 BOTTOM BALL 240 3.3V 30 XCR3032XL 48 0.8mm Programmable Logic Devices Not Qualified 7.5 ns 7.5 ns EEPROM 36 750 MACROCELL In System Programmable (min 1K program/erase cycles) 32 YES 3V~3.6V 2 7 7ns
    XCR3032XL-10CSG48I XCR3032XL-10CSG48I Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 2003 CoolRunner XPLA3 yes Active 3 (168 Hours) 48 EAR99 3.3V 7mm ROHS3 Compliant No 48 YES 48-FBGA, CSPBGA 7mm Surface Mount -40°C~85°C TA CMOS 1.8mm 95MHz e1 Tin/Silver/Copper (Sn95.5Ag4.0Cu0.5) BOTTOM BALL 260 3.3V 30 48 0.8mm Programmable Logic Devices 3.6V 10 ns 10 ns EEPROM 36 750 MACROCELL In System Programmable (min 1K program/erase cycles) 32 YES 2.7V~3.6V 2 10 9.1ns
    XC2C64A-7VQ44I XC2C64A-7VQ44I Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 2001 CoolRunner II no Active 3 (168 Hours) 44 EAR99 1.8V 10mm Non-RoHS Compliant 44 REAL DIGITAL DESIGN TECHNOLOGY 44-TQFP 10mm Surface Mount -40°C~85°C TA CMOS 1.2mm 159MHz e0 Tin/Lead (Sn85Pb15) QUAD GULL WING 225 1.8V 30 XC2C64A 44 0.8mm Programmable Logic Devices Not Qualified 1.9V 7.5 ns ROMless 33 1500 MACROCELL In System Programmable 64 YES 1.7V~1.9V 4 7 6.7ns
    XC9536XL-7VQ44I XC9536XL-7VQ44I Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 1996 XC9500XL no Active 3 (168 Hours) 44 EAR99 3.3V 10mm Non-RoHS Compliant Lead, Tin 44 YES 44-TQFP 3.6V not_compliant 3V 10mm Surface Mount -40°C~85°C TA CMOS 125MHz e0 Tin/Lead (Sn85Pb15) QUAD GULL WING 225 3.3V 30 XC9536XL 44 0.8mm Programmable Logic Devices Not Qualified 7.5 ns 7.5 ns FLASH 34 800 MACROCELL In System Programmable (min 10K program/erase cycles) 36 YES 3V~3.6V 2 7
    XC9572XL-10TQ100C XC9572XL-10TQ100C Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 1996 XC9500XL no Active 3 (168 Hours) 100 EAR99 3.3V 14mm Non-RoHS Compliant Contains Lead Lead, Tin No 100 100-LQFP 3.6V 3V 1.4mm 14mm Surface Mount 0°C~70°C TA CMOS 100MHz e0 Tin/Lead (Sn85Pb15) QUAD GULL WING 225 3.3V 30 XC9572XL 100 0.5mm Programmable Logic Devices 10 ns 10 ns FLASH 72 1600 MACROCELL In System Programmable (min 10K program/erase cycles) 72 YES 3V~3.6V 4 10
    XC9536XL-7VQG64C XC9536XL-7VQG64C Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 1996 XC9500XL yes Active 3 (168 Hours) 64 EAR99 3.3V 10mm ROHS3 Compliant Lead Free 64 YES 64-TQFP 10mm Surface Mount 0°C~70°C TA CMOS 125MHz e3 Matte Tin (Sn) QUAD GULL WING 260 3.3V 30 XC9536XL 64 0.5mm Programmable Logic Devices Not Qualified 3.6V 7.5 ns FLASH 36 800 MACROCELL In System Programmable (min 10K program/erase cycles) 36 YES 3V~3.6V 2 7
    XA9572XL-15VQG64Q XA9572XL-15VQG64Q Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 1998 XA9500XL XA yes Active 3 (168 Hours) 64 EAR99 3.3V 10mm ROHS3 Compliant Tin 64 64-TQFP 3.6V 3V 10mm Surface Mount -40°C~105°C TA CMOS 1.2mm 64.5MHz e3 QUAD GULL WING 260 3.3V 30 XA9572XL 64 0.5mm Not Qualified 15.5 ns 15.5 ns 52 1600 MACROCELL In System Programmable 72 3V~3.6V 4 15
    XC2C64A-5VQG100C XC2C64A-5VQG100C Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 2001 CoolRunner II yes Active 3 (168 Hours) 100 EAR99 1.8V ROHS3 Compliant Tin 100 REAL DIGITAL DESIGN TECHNOLOGY 100-TQFP 1.9V 1.7V Surface Mount 0°C~70°C TA CMOS 1.2mm 263MHz e3 QUAD GULL WING 260 1.8V 30 XC2C64A 100 Programmable Logic Devices Not Qualified 5 ns 5 ns ROMless 64 1500 MACROCELL In System Programmable 64 YES 1.7V~1.9V 4 5 4.6ns
    XC9536XL-5CS48C XC9536XL-5CS48C Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 1996 XC9500XL no Active 3 (168 Hours) 48 EAR99 3.3V 7mm Non-RoHS Compliant Contains Lead 48 48-FBGA, CSPBGA not_compliant 7mm Surface Mount 0°C~70°C TA CMOS 1.8mm 178.6MHz e0 Tin/Lead (Sn63Pb37) BOTTOM BALL 240 3.3V 30 XC9536XL 48 0.8mm Programmable Logic Devices Not Qualified 3.6V 5 ns FLASH 36 800 MACROCELL In System Programmable (min 10K program/erase cycles) 36 YES 3V~3.6V 2 5
    XC95144XL-7TQG144C XC95144XL-7TQG144C Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 1996 XC9500XL yes Active 3 (168 Hours) 144 EAR99 3.3V 20mm ROHS3 Compliant Lead Free YES 144-LQFP 3.6V 3V 125MHz 1.4mm 20mm Surface Mount 0°C~70°C TA CMOS e3 Matte Tin (Sn) QUAD GULL WING 260 3.3V 30 XC95144XL 144 0.5mm Programmable Logic Devices Not Qualified 7.5 ns FLASH 117 3200 MACROCELL In System Programmable (min 10K program/erase cycles) 144 YES 3V~3.6V 8 7
    XCR3256XL-12PQ208C XCR3256XL-12PQ208C Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Bulk 2003 CoolRunner XPLA3 no Active 3 (168 Hours) 208 EAR99 3.3V 28mm Non-RoHS Compliant 208 YES 208-BFQFP 28mm Surface Mount 0°C~70°C TA CMOS 4.1mm 8542.39.00.01 88MHz e0 Tin/Lead (Sn85Pb15) QUAD GULL WING 225 3.3V 30 208 YES 0.5mm Programmable Logic Devices Not Qualified 3.6V 12 ns EEPROM 164 6000 MACROCELL In System Programmable (min 1K program/erase cycles) 256 YES 3V~3.6V 16 12 10.8ns
    XC2C256-7TQG144I XC2C256-7TQG144I Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 2001 CoolRunner II yes Active 3 (168 Hours) 144 SMD/SMT EAR99 1.8V 20mm ROHS3 Compliant Tin 144 REAL DIGITAL DESIGN TECHNOLOGY 144-LQFP 1.9V No SVHC 1.7V 256MHz 20mm Surface Mount -40°C~85°C TA CMOS 1.6mm 8542.39.00.01 e3 QUAD GULL WING 260 1.8V 30 XC2C256 144 0.5mm Programmable Logic Devices Not Qualified 5.7 ns 7.5 ns 118 6000 MACROCELL In System Programmable 256 YES 1.7V~1.9V 16 7 6.7ns
    XC95144XL-7TQG100C XC95144XL-7TQG100C Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 1996 XC9500XL yes Active 3 (168 Hours) 100 EAR99 3.3V 14mm ROHS3 Compliant Lead Free 100 YES 100-LQFP 125MHz 14mm Surface Mount 0°C~70°C TA CMOS 1.6mm e3 Matte Tin (Sn) QUAD GULL WING 260 3.3V 30 XC95144XL 100 0.5mm Programmable Logic Devices Not Qualified 3.6V 7.5 ns FLASH 81 3200 MACROCELL In System Programmable (min 10K program/erase cycles) 144 YES 3V~3.6V 8 7
    XC95144XL-10TQG144C XC95144XL-10TQG144C Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 1996 XC9500XL yes Active 3 (168 Hours) 144 SMD/SMT EAR99 3.3V 20mm ROHS3 Compliant Lead Free No YES 144-LQFP 3.6V Unknown 3V 100MHz 20mm Surface Mount 0°C~70°C TA CMOS 1.6mm e3 Matte Tin (Sn) QUAD GULL WING 260 3.3V 30 XC95144XL 144 0.5mm Programmable Logic Devices 10 ns 10 ns FLASH 117 3200 MACROCELL In System Programmable (min 10K program/erase cycles) 144 YES 3V~3.6V 8 10
    XC2C256-7FTG256C XC2C256-7FTG256C Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 2001 CoolRunner II yes Active 3 (168 Hours) 256 SMD/SMT EAR99 1.8V ROHS3 Compliant Lead Free REAL DIGITAL DESIGN TECHNOLOGY 256-LBGA 1.9V Unknown 1.7V 256MHz Surface Mount 0°C~70°C TA CMOS 1.55mm 8542.39.00.01 e1 Tin/Silver/Copper (Sn95.5Ag4.0Cu0.5) BOTTOM BALL 260 1.8V 30 XC2C256 256 1mm Programmable Logic Devices Not Qualified 5.7 ns 184 6000 MACROCELL In System Programmable 256 YES 1.7V~1.9V 16 7 6.7ns
    XCR3256XL-10TQ144I XCR3256XL-10TQ144I Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Tray 2003 CoolRunner XPLA3 no Active 3 (168 Hours) 144 EAR99 3.3V 20mm Non-RoHS Compliant 144 YES 144-LQFP 20mm Surface Mount -40°C~85°C TA CMOS 1.6mm 8542.39.00.01 105MHz e0 Tin/Lead (Sn85Pb15) QUAD GULL WING 225 3.3V 30 144 YES 0.5mm Programmable Logic Devices Not Qualified 3.6V 10 ns EEPROM 120 6000 MACROCELL In System Programmable (min 1K program/erase cycles) 256 YES 2.7V~3.6V 16 10 9.1ns
    XC95288XL-7TQG144C XC95288XL-7TQG144C Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 1996 XC9500XL yes Active 3 (168 Hours) 144 EAR99 3.3V 20mm ROHS3 Compliant Lead Free 144 YES 144-LQFP 125MHz 20mm Surface Mount 0°C~70°C TA CMOS 1.6mm 8542.39.00.01 e3 Matte Tin (Sn) QUAD GULL WING 260 3.3V 30 XC95288XL 144 0.5mm Programmable Logic Devices Not Qualified 3.6V 7.5 ns 7.5 ns FLASH 117 6400 MACROCELL In System Programmable (min 10K program/erase cycles) 288 YES 3V~3.6V 16 7
    XC95288XL-10TQG144C XC95288XL-10TQG144C Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 1996 XC9500XL yes Active 3 (168 Hours) 144 EAR99 3.3V 20mm ROHS3 Compliant Lead Free 144 YES 144-LQFP 100MHz 20mm Surface Mount 0°C~70°C TA CMOS 1.6mm 8542.39.00.01 e3 Matte Tin (Sn) QUAD GULL WING 260 3.3V 30 XC95288XL 144 0.5mm Programmable Logic Devices Not Qualified 3.6V 10 ns FLASH 117 6400 MACROCELL In System Programmable (min 10K program/erase cycles) 288 YES 3V~3.6V 16 10
    XCR3256XL-10TQG144C XCR3256XL-10TQG144C Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 2003 CoolRunner XPLA3 yes Active 3 (168 Hours) 144 EAR99 3.3V 20mm ROHS3 Compliant 144 YES 144-LQFP 3.6V 3V 1.4mm 20mm Surface Mount 0°C~70°C TA CMOS 8542.39.00.01 105MHz e3 Matte Tin (Sn) QUAD GULL WING 260 3.3V 30 144 0.5mm Programmable Logic Devices Not Qualified 10 ns EEPROM 120 6000 MACROCELL In System Programmable (min 1K program/erase cycles) 256 YES 3V~3.6V 16 10 9.1ns
    XC2C256-7VQG100I XC2C256-7VQG100I Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 2001 CoolRunner II yes Active 3 (168 Hours) 100 EAR99 1.8V 14mm ROHS3 Compliant Tin 100 REAL DIGITAL DESIGN TECHNOLOGY 100-TQFP 1.9V 1.7V 14mm Surface Mount -40°C~85°C TA CMOS 1.2mm 8542.39.00.01 152MHz e3 QUAD GULL WING 260 1.8V 30 XC2C256 100 0.5mm Programmable Logic Devices Not Qualified 7.5 ns 7.5 ns 80 6000 MACROCELL In System Programmable 256 YES 1.7V~1.9V 16 7 6.7ns
    XC95288XL-10TQ144I XC95288XL-10TQ144I Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 1996 XC9500XL no Active 3 (168 Hours) 144 EAR99 3.3V 20mm Non-RoHS Compliant Contains Lead Lead, Tin 144 144-LQFP 3.6V not_compliant 3V 100MHz 20mm Surface Mount -40°C~85°C TA CMOS 1.6mm 8542.39.00.01 e0 Tin/Lead (Sn85Pb15) QUAD GULL WING 225 3.3V 30 XC95288XL 144 0.5mm Programmable Logic Devices Not Qualified 10 ns 10 ns FLASH 117 6400 MACROCELL In System Programmable (min 10K program/erase cycles) 288 YES 3V~3.6V 16 10
    XC2C64A-5QFG48C XC2C64A-5QFG48C Xilinx Inc. $0.00
    RFQ

    Min: 1

    Mult: 1

    		 download 10 Weeks Surface Mount Tray 2001 CoolRunner II yes Active 3 (168 Hours) 48 EAR99 1.8V 7mm ROHS3 Compliant Lead Free Tin 48 REAL DIGITAL DESIGN TECHNOLOGY 48-VFQFN Exposed Pad 1.9V 1.7V 7mm Surface Mount 0°C~70°C TA CMOS 1mm 263MHz e3 QUAD NO LEAD 260 1.8V 30 XC2C64A 48 Programmable Logic Devices Not Qualified 5 ns 5 ns ROMless 37 1500 MACROCELL In System Programmable 64 YES 1.7V~1.9V 4 5 4.6ns