Twicea electronic parts stores,electronic components,electronic parts,electronics parts supply Twicea electronic parts stores,electronic components,electronic parts,electronics parts supply
About Twicea
Capacitors
Memory Cards, Modules
Resistors
Isolators
Magnetics - Transformer, Inductor Components
Sensors, Transducers
Optoelectronics
Integrated Circuits (ICs)
Crystals, Oscillators, Resonators
Discrete Semiconductor Products
RF/IF and RFID
Switches
Transformers
Motors, Solenoids, Driver Boards/Modules
A-Z
3M
Infineon
Insight SiP
Isocom Components
Microchip
ON Semiconductor
STMicroelectronics
TDK
Xilinx
Yageo

Hello

OR
WISH LIST
  • Integrated Circuits (ICs)
  • Embedded - FPGAs (Field Programmable Gate Array)
Factory Lead TimeMounting TypePackage / CaseSurface MountNumber of I/OsOperating TemperaturePackagingPublishedSeriesJESD-609 CodePart StatusMoisture Sensitivity Level (MSL)Number of TerminationsECCN CodeTerminal FinishAdditional FeatureHTS CodeVoltage - SupplyTerminal PositionTerminal FormPeak Reflow Temperature (Cel)Supply VoltageTerminal PitchTime@Peak Reflow Temperature-Max (s)Base Part NumberJESD-30 CodeNumber of OutputsQualification StatusPower SuppliesClock FrequencyNumber of InputsProgrammable Logic TypeNumber of Logic Elements/CellsTotal RAM BitsNumber of LABs/CLBsNumber of CLBsHeight Seated (Max)LengthWidthRoHS Status
Factory Lead TimeMounting TypePackage / CaseSurface MountNumber of I/OsOperating TemperaturePackagingPublishedSeriesJESD-609 CodePart StatusMoisture Sensitivity Level (MSL)Number of TerminationsECCN CodeTerminal FinishAdditional FeatureHTS CodeVoltage - SupplyTerminal PositionTerminal FormPeak Reflow Temperature (Cel)Supply VoltageTerminal PitchTime@Peak Reflow Temperature-Max (s)Base Part NumberJESD-30 CodeNumber of OutputsQualification StatusPower SuppliesClock FrequencyNumber of InputsProgrammable Logic TypeNumber of Logic Elements/CellsTotal RAM BitsNumber of LABs/CLBsNumber of CLBsHeight Seated (Max)LengthWidthRoHS Status
Intel EP3C25F256C7N
Mfr.
EP3C25F256C7N
Twicea
386-485-EP3C25F256C7N
Intel
IC CYCLONE III FPGA 256-FBGA
785
    Min.:1
    Mult.:1
    8 Weeks Surface Mount 256-LBGA YES 156 0°C~85°C TJ Tray 2009 Cyclone® III e1 Active 3 (168 Hours) 256 3A991 TIN SILVER COPPER - 8542.39.00.01 1.15V~1.25V BOTTOM BALL 260 1.2V 1mm 40 EP3C25 R-PBGA-B256 156 Not Qualified - 472.5MHz 156 FIELD PROGRAMMABLE GATE ARRAY 24624 608256 1539 - 1.55mm 17mm 17mm RoHS Compliant
    EP3C25F256C7N
    EP3C25F256C7N

    386-485-EP3C25F256C7N Intel
    :
    : -
    : 785
    1 : -
    Intel EP4CE22E22C8N
    Mfr.
    EP4CE22E22C8N
    Twicea
    386-485-EP4CE22E22C8N
    Intel
    ALTERA EP4CE22E22C8NFPGA, CYCLONE IV, 22K, 144EQFP
    720
      Min.:1
      Mult.:1
      11 Weeks Surface Mount 144-LQFP Exposed Pad YES 79 0°C~85°C TJ Tray - Cyclone® IV E e3 Active 3 (168 Hours) 144 - MATTE TIN (472) OVER COPPER - 8542.39.00.01 1.15V~1.25V QUAD GULL WING 260 1.2V 0.5mm 40 EP4CE22 S-PQFP-G144 79 Not Qualified 1.21.2/3.32.5V 472.5MHz 79 FIELD PROGRAMMABLE GATE ARRAY 22320 608256 1395 - 1.65mm 20mm 20mm RoHS Compliant
      EP4CE22E22C8N
      EP4CE22E22C8N

      386-485-EP4CE22E22C8N Intel
      :
      : -
      : 720
      1 : -
      Intel EP3C120F780C8N
      Mfr.
      EP3C120F780C8N
      Twicea
      386-485-EP3C120F780C8N
      Intel
      ALTERA EP3C120F780C8N FPGA, CYCLONE III, 119K LE, 780FBGA
      24
        Min.:1
        Mult.:1
        8 Weeks Surface Mount 780-BGA YES 531 0°C~85°C TJ Tray - Cyclone® III e1 Active 3 (168 Hours) 780 3A001.A.7.A TIN SILVER COPPER - 8542.39.00.01 1.15V~1.25V BOTTOM BALL 245 1.2V 1mm 40 EP3C120 R-PBGA-B780 531 Not Qualified - 472.5MHz 531 FIELD PROGRAMMABLE GATE ARRAY 119088 3981312 7443 - 3.5mm 29mm 29mm RoHS Compliant
        EP3C120F780C8N
        EP3C120F780C8N

        386-485-EP3C120F780C8N Intel
        :
        : -
        : 24
        1 : -
        Intel 5CEFA7U19I7N
        Mfr.
        5CEFA7U19I7N
        Twicea
        386-485-5CEFA7U19I7N
        Intel
        FPGA - Field Programmable Gate Array FPGA - Cyclone V E 5648 LABs 240 IOs
        2124
          Min.:1
          Mult.:1
          8 Weeks Surface Mount 484-FBGA YES 240 -40°C~100°C TJ Tray 2018 Cyclone® V E - Active 3 (168 Hours) 484 - - - 8542.39.00.01 1.07V~1.13V BOTTOM BALL NOT SPECIFIED 1.1V 0.8mm NOT SPECIFIED 5CEFA7 S-PBGA-B484 230 Not Qualified 1.11.2/3.32.5V - 230 FIELD PROGRAMMABLE GATE ARRAY 149500 7880704 56480 - 1.9mm 19mm 19mm RoHS Compliant
          5CEFA7U19I7N
          5CEFA7U19I7N

          386-485-5CEFA7U19I7N Intel
          :
          : -
          : 2124
          1 : -
          Intel EP3C25F324C8N
          Mfr.
          EP3C25F324C8N
          Twicea
          386-485-EP3C25F324C8N
          Intel
          ALTERA EP3C25F324C8NIC CYCLONE III FPGA 402MHZ FBGA-324
          42
            Min.:1
            Mult.:1
            8 Weeks Surface Mount 324-BGA YES 215 0°C~85°C TJ Tray 2009 Cyclone® III e1 Active 3 (168 Hours) 324 - TIN SILVER COPPER - 8542.39.00.01 1.15V~1.25V BOTTOM BALL 260 1.2V 1mm 40 EP3C25 R-PBGA-B324 215 Not Qualified - 472.5MHz 215 FIELD PROGRAMMABLE GATE ARRAY 24624 608256 1539 - 2.2mm 19mm 19mm RoHS Compliant
            EP3C25F324C8N
            EP3C25F324C8N

            386-485-EP3C25F324C8N Intel
            :
            : -
            : 42
            1 : -
            Intel EP2C5Q208I8N
            Mfr.
            EP2C5Q208I8N
            Twicea
            386-485-EP2C5Q208I8N
            Intel
            ALTERA EP2C5Q208I8NFPGA,CYCLONE II, 5K ELEMENTS, PQFP208
            10000
              Min.:1
              Mult.:1
              8 Weeks Surface Mount 208-BFQFP YES 142 -40°C~100°C TJ Tray 2008 Cyclone® II e3 Active 3 (168 Hours) 208 EAR99 MATTE TIN (472) OVER COPPER ALSO REQUIRES 3.3 SUPPLY 8542.39.00.01 1.15V~1.25V QUAD GULL WING 245 1.2V 0.5mm 40 EP2C5 S-PQFP-G208 134 Not Qualified 1.21.5/3.33.3V 402.5MHz 142 FIELD PROGRAMMABLE GATE ARRAY 4608 119808 288 288 4.1mm 28mm 28mm RoHS Compliant
              EP2C5Q208I8N
              EP2C5Q208I8N

              386-485-EP2C5Q208I8N Intel
              :
              : -
              : 10000
              1 : -
              Intel EP3C55F484C7N
              Mfr.
              EP3C55F484C7N
              Twicea
              386-485-EP3C55F484C7N
              Intel
              FPGA, CYCLONE III, 55K LE, 484FBGA
              2492
                Min.:1
                Mult.:1
                8 Weeks Surface Mount 484-BGA YES 327 0°C~85°C TJ Tray - Cyclone® III e1 Active 3 (168 Hours) 484 3A991 Tin/Silver/Copper (Sn/Ag/Cu) - 8542.39.00.01 1.15V~1.25V BOTTOM BALL 260 1.2V 1mm 40 EP3C55 R-PBGA-B484 327 Not Qualified - 472.5MHz 327 FIELD PROGRAMMABLE GATE ARRAY 55856 2396160 3491 - 2.6mm 23mm 23mm RoHS Compliant
                EP3C55F484C7N
                EP3C55F484C7N

                386-485-EP3C55F484C7N Intel
                :
                : -
                : 2492
                1 : -
                Intel EP3C16Q240C8N
                Mfr.
                EP3C16Q240C8N
                Twicea
                386-485-EP3C16Q240C8N
                Intel
                ALTERA - EP3C16Q240C8N - FPGA,CYCLONE III, 16K LE, PQFP240
                20
                  Min.:1
                  Mult.:1
                  12 Weeks Surface Mount 240-BFQFP YES 160 0°C~85°C TJ Tray 2009 Cyclone® III e3 Active 3 (168 Hours) 240 3A991 MATTE TIN (472) OVER COPPER - 8542.39.00.01 1.15V~1.25V QUAD GULL WING 245 1.2V 0.5mm 40 EP3C16 R-PQFP-G240 160 Not Qualified - 472.5MHz 160 FIELD PROGRAMMABLE GATE ARRAY 15408 516096 963 - 4.1mm 32mm 32mm RoHS Compliant
                  EP3C16Q240C8N
                  EP3C16Q240C8N

                  386-485-EP3C16Q240C8N Intel
                  :
                  : -
                  : 20
                  1 : -
                  Intel EP2C8Q208C8N
                  Mfr.
                  EP2C8Q208C8N
                  Twicea
                  386-485-EP2C8Q208C8N
                  Intel
                  ALTERA EP2C8Q208C8NCYCLONE II FPGA 8K, SMD, 2C8Q208
                  412
                    Min.:1
                    Mult.:1
                    8 Weeks Surface Mount 208-BFQFP YES 138 0°C~85°C TJ Tray 2008 Cyclone® II e3 Active 3 (168 Hours) 208 EAR99 MATTE TIN ALSO REQUIRES 3.3 SUPPLY 8542.39.00.01 1.15V~1.25V QUAD GULL WING 245 1.2V 0.5mm 40 EP2C8 S-PQFP-G208 130 Not Qualified 1.21.5/3.33.3V 402.5MHz 138 FIELD PROGRAMMABLE GATE ARRAY 8256 165888 516 516 4.1mm 28mm 28mm RoHS Compliant
                    EP2C8Q208C8N
                    EP2C8Q208C8N

                    386-485-EP2C8Q208C8N Intel
                    :
                    : -
                    : 412
                    1 : -
                    Intel EP4CE10F17I7N
                    Mfr.
                    EP4CE10F17I7N
                    Twicea
                    386-485-EP4CE10F17I7N
                    Intel
                    FPGA Cyclone® IV E Family 10320 Cells 60nm Technology 1.2V 256-Pin TFBGA
                    17
                      Min.:1
                      Mult.:1
                      8 Weeks Surface Mount 256-LBGA YES 179 -40°C~100°C TJ Tray 2016 Cyclone® IV E e1 Active 3 (168 Hours) 256 - Tin/Silver/Copper (Sn/Ag/Cu) - 8542.39.00.01 1.15V~1.25V BOTTOM BALL 260 1.2V 1mm 40 EP4CE10 S-PBGA-B256 179 Not Qualified 1.21.2/3.32.5V 472.5MHz 179 FIELD PROGRAMMABLE GATE ARRAY 10320 423936 645 645 1.55mm 17mm 17mm RoHS Compliant
                      EP4CE10F17I7N
                      EP4CE10F17I7N

                      386-485-EP4CE10F17I7N Intel
                      :
                      : -
                      : 17
                      1 : -
                      Intel EP3C40F780C8N
                      Mfr.
                      EP3C40F780C8N
                      Twicea
                      386-485-EP3C40F780C8N
                      Intel
                      ALTERA EP3C40F780C8NFPGA, CYCLONE III, 40K LE, 780FBGA
                      2598
                        Min.:1
                        Mult.:1
                        8 Weeks Surface Mount 780-BGA YES 535 0°C~85°C TJ Tray - Cyclone® III e1 Active 3 (168 Hours) 780 3A001.A.7.A Tin/Silver/Copper (Sn/Ag/Cu) - 8542.39.00.01 1.15V~1.25V BOTTOM BALL 245 1.2V 1mm 40 EP3C40 R-PBGA-B780 535 Not Qualified - 472.5MHz 535 FIELD PROGRAMMABLE GATE ARRAY 39600 1161216 2475 - 3.5mm 29mm 29mm RoHS Compliant
                        EP3C40F780C8N
                        EP3C40F780C8N

                        386-485-EP3C40F780C8N Intel
                        :
                        : -
                        : 2598
                        1 : -
                        Intel EP3C120F484I7N
                        Mfr.
                        EP3C120F484I7N
                        Twicea
                        386-485-EP3C120F484I7N
                        Intel
                        IC FPGA 283 I/O 484FBGA
                        2575
                          Min.:1
                          Mult.:1
                          8 Weeks Surface Mount 484-BGA YES 283 -40°C~100°C TJ Tray 2009 Cyclone® III e1 Active 3 (168 Hours) 484 3A001.A.7.A Tin/Silver/Copper (Sn96.5Ag3.0Cu0.5) - 8542.39.00.01 1.15V~1.25V BOTTOM BALL 260 1.2V 1mm 40 EP3C120 R-PBGA-B484 283 Not Qualified - 472.5MHz 283 FIELD PROGRAMMABLE GATE ARRAY 119088 3981312 7443 - 2.6mm 23mm 23mm RoHS Compliant
                          EP3C120F484I7N
                          EP3C120F484I7N

                          386-485-EP3C120F484I7N Intel
                          :
                          : -
                          : 2575
                          1 : -
                          Intel EP2C5T144I8N
                          Mfr.
                          EP2C5T144I8N
                          Twicea
                          386-485-EP2C5T144I8N
                          Intel
                          IC FPGA 89 I/O 144TQFP
                          1300
                            Min.:1
                            Mult.:1
                            8 Weeks Surface Mount 144-LQFP YES 89 -40°C~100°C TJ Tray 2008 Cyclone® II e3 Active 3 (168 Hours) 144 EAR99 Matte Tin (Sn) ALSO REQUIRES 3.3 SUPPLY 8542.39.00.01 1.15V~1.25V QUAD GULL WING 260 1.2V 0.5mm 40 EP2C5 S-PQFP-G144 81 Not Qualified 1.21.5/3.33.3V - 89 FIELD PROGRAMMABLE GATE ARRAY 4608 119808 288 288 1.6mm 20mm 20mm RoHS Compliant
                            EP2C5T144I8N
                            EP2C5T144I8N

                            386-485-EP2C5T144I8N Intel
                            :
                            : -
                            : 1300
                            1 : -
                            Intel EP3C10F256C8N
                            Mfr.
                            EP3C10F256C8N
                            Twicea
                            386-485-EP3C10F256C8N
                            Intel
                            ALTERA EP3C10F256C8NFPGA, CYCLONE III, 10K LE, 256FBGA
                            1080
                              Min.:1
                              Mult.:1
                              8 Weeks Surface Mount 256-LBGA YES 182 0°C~85°C TJ Tray 2009 Cyclone® III e1 Active 3 (168 Hours) 256 EAR99 Tin/Silver/Copper (Sn/Ag/Cu) - 8542.39.00.01 1.15V~1.25V BOTTOM BALL 260 1.2V 1mm 30 EP3C10 R-PBGA-B256 182 Not Qualified - 472.5MHz 182 FIELD PROGRAMMABLE GATE ARRAY 10320 423936 645 - 1.55mm 17mm 17mm RoHS Compliant
                              EP3C10F256C8N
                              EP3C10F256C8N

                              386-485-EP3C10F256C8N Intel
                              :
                              : -
                              : 1080
                              1 : -
                              Intel EP3C16E144C8N
                              Mfr.
                              EP3C16E144C8N
                              Twicea
                              386-485-EP3C16E144C8N
                              Intel
                              ALTERA EP3C16E144C8NFPGA, CYCLONE III, 16K LE, 144EQFP
                              13
                                Min.:1
                                Mult.:1
                                11 Weeks Surface Mount 144-LQFP Exposed Pad YES 84 0°C~85°C TJ Tray 2009 Cyclone® III e3 Active 3 (168 Hours) 144 - MATTE TIN (472) OVER COPPER - 8542.39.00.01 1.15V~1.25V QUAD GULL WING 260 1.2V 0.5mm 40 EP3C16 R-PQFP-G144 84 Not Qualified - 472.5MHz 84 FIELD PROGRAMMABLE GATE ARRAY 15408 516096 963 - 1.6mm 20mm 20mm RoHS Compliant
                                EP3C16E144C8N
                                EP3C16E144C8N

                                386-485-EP3C16E144C8N Intel
                                :
                                : -
                                : 13
                                1 : -
                                Intel EP4CE6F17C6N
                                Mfr.
                                EP4CE6F17C6N
                                Twicea
                                386-485-EP4CE6F17C6N
                                Intel
                                ALTERA EP4CE6F17C6NFPGA, CYCLONE IV, 6K, 256FBGA
                                209
                                  Min.:1
                                  Mult.:1
                                  8 Weeks Surface Mount 256-LBGA YES 179 0°C~85°C TJ Tray 2016 Cyclone® IV E e1 Active 3 (168 Hours) 256 - TIN SILVER COPPER - 8542.39.00.01 1.15V~1.25V BOTTOM BALL 260 1.2V 1mm 40 EP4CE6 S-PBGA-B256 179 Not Qualified 1.21.2/3.32.5V 472.5MHz 179 FIELD PROGRAMMABLE GATE ARRAY 6272 276480 392 392 1.55mm 17mm 17mm RoHS Compliant
                                  EP4CE6F17C6N
                                  EP4CE6F17C6N

                                  386-485-EP4CE6F17C6N Intel
                                  :
                                  : -
                                  : 209
                                  1 : -
                                  Intel EP4CE55F23I7N
                                  Mfr.
                                  EP4CE55F23I7N
                                  Twicea
                                  386-485-EP4CE55F23I7N
                                  Intel
                                  FPGA Cyclone® IV E Family 55856 Cells 60nm Technology 1.2V 484-Pin FBGA
                                  5000
                                    Min.:1
                                    Mult.:1
                                    8 Weeks Surface Mount 484-BGA YES 324 -40°C~100°C TJ Tray 2016 Cyclone® IV E e1 Active 3 (168 Hours) 484 - Tin/Silver/Copper (Sn/Ag/Cu) - 8542.39.00.01 1.15V~1.25V BOTTOM BALL 260 1.2V 1mm 40 EP4CE55 S-PBGA-B484 327 Not Qualified 1.21.2/3.32.5V 472.5MHz 327 FIELD PROGRAMMABLE GATE ARRAY 55856 2396160 3491 - 2.4mm 23mm 23mm RoHS Compliant
                                    EP4CE55F23I7N
                                    EP4CE55F23I7N

                                    386-485-EP4CE55F23I7N Intel
                                    :
                                    : -
                                    : 5000
                                    1 : -
                                    Intel EP3C25F256C8N
                                    Mfr.
                                    EP3C25F256C8N
                                    Twicea
                                    386-485-EP3C25F256C8N
                                    Intel
                                    ALTERA EP3C25F256C8NCYCLONE III FPGA 25K, SMD, 3C25F256
                                    2368
                                      Min.:1
                                      Mult.:1
                                      8 Weeks Surface Mount 256-LBGA YES 156 0°C~85°C TJ Tray - Cyclone® III e1 Active 3 (168 Hours) 256 3A991 Tin/Silver/Copper (Sn/Ag/Cu) - 8542.39.00.01 1.15V~1.25V BOTTOM BALL 260 1.2V 1mm 40 EP3C25 R-PBGA-B256 156 Not Qualified - 472.5MHz 156 FIELD PROGRAMMABLE GATE ARRAY 24624 608256 1539 - 1.55mm 17mm 17mm RoHS Compliant
                                      EP3C25F256C8N
                                      EP3C25F256C8N

                                      386-485-EP3C25F256C8N Intel
                                      :
                                      : -
                                      : 2368
                                      1 : -
                                      Intel EP4CE10E22C8N
                                      Mfr.
                                      EP4CE10E22C8N
                                      Twicea
                                      386-485-EP4CE10E22C8N
                                      Intel
                                      ALTERA EP4CE10E22C8NFPGA, CYCLONE IV, 10K LE, 144TQFP
                                      600
                                        Min.:1
                                        Mult.:1
                                        11 Weeks Surface Mount 144-LQFP Exposed Pad YES 91 0°C~85°C TJ Tray 2014 Cyclone® IV E e3 Active 3 (168 Hours) 144 - MATTE TIN (472) OVER COPPER - 8542.39.00.01 1.15V~1.25V QUAD GULL WING 260 1.2V 0.5mm 40 EP4CE10 S-PQFP-G144 91 Not Qualified 1.21.2/3.32.5V 472.5MHz 91 FIELD PROGRAMMABLE GATE ARRAY 10320 423936 645 645 1.65mm 20mm 20mm RoHS Compliant
                                        EP4CE10E22C8N
                                        EP4CE10E22C8N

                                        386-485-EP4CE10E22C8N Intel
                                        :
                                        : -
                                        : 600
                                        1 : -
                                        Intel EP4CE6F17C8N
                                        Mfr.
                                        EP4CE6F17C8N
                                        Twicea
                                        386-485-EP4CE6F17C8N
                                        Intel
                                        ALTERA EP4CE6F17C8NFPGA, CYCLONE IV, 6K, 256FBGA
                                        559
                                          Min.:1
                                          Mult.:1
                                          8 Weeks Surface Mount 256-LBGA YES 179 0°C~85°C TJ Tray 2016 Cyclone® IV E e1 Active 3 (168 Hours) 256 - Tin/Silver/Copper (Sn/Ag/Cu) - 8542.39.00.01 1.15V~1.25V BOTTOM BALL 260 1.2V 1mm 40 EP4CE6 S-PBGA-B256 179 Not Qualified 1.21.2/3.32.5V 472.5MHz 179 FIELD PROGRAMMABLE GATE ARRAY 6272 276480 392 392 1.55mm 17mm 17mm RoHS Compliant
                                          EP4CE6F17C8N
                                          EP4CE6F17C8N

                                          386-485-EP4CE6F17C8N Intel
                                          :
                                          : -
                                          : 559
                                          1 : -
                                          • 1
                                          • ..
                                          • 1
                                          • 2
                                          • 3
                                          • 4
                                          • ..
                                          • 50

                                          Integrated Circuits (ICs)

                                          Embedded - FPGAs (Field Programmable Gate Array) definition: A field-programmable gate array (FPGA) is an integrated circuit designed to be configured by a customer or a designer after manufacturing. I... Embedded - FPGAs (Field Programmable Gate Array) Product Listing: EP3C25F256C7N,EP4CE22E22C8N,EP3C120F780C8N,5CEFA7U19I7N,EP3C25F324C8N.Integrated Circuits (ICs) type:Embedded - Microcontrollers(134273),Memory(116337),PMIC - Voltage Regulators - Linear(107072),PMIC - Supervisors(101983),Embedded - FPGAs (Field Programmable Gate Array)(62862) .Embedded - FPGAs (Field Programmable Gate Array) has 10000 pieces of spot stock price information, you can click the "RFQ" button to confirm the inventory and price with the Twicea.
                                          :
                                          0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ

                                          Contact us

                                          Email us
                                          info@twicea.com
                                          Address:
                                          UNIT 3,6/F KAM HON IND BLDG 8 WANG KWUN RD KOWLOON BAY HONG KONG

                                          Quick Links

                                          About us Shipment Terms & Conditions Privacy Policy Cookies Policy

                                          Keep up to date with the TWICEA offer:

                                          Pay online using:

                                          PaypalVISAAmexMaster-cardMaster
                                          Twicea © Copyright 2023, Inc. All rights reserved