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Image Part # Manufacturer Description Availability Pricing Quantity Surface MountNumber of TerminalsAccess Time-MaxClock Frequency-Max (fCLK)Ihs ManufacturerNumber of WordsNumber of Words CodeOperating Temperature-MaxOperating Temperature-MinPackage Body MaterialPackage CodePackage DescriptionPackage Equivalence CodePackage ShapePackage StylePart Life Cycle CodePart Package CodeRohs CodeSupply Voltage-Nom (Vsup)JESD-609 CodePbfree CodeECCN CodeTerminal FinishAdditional FeatureHTS CodeTerminal PositionTerminal FormPeak Reflow Temperature (Cel)Number of FunctionsTerminal PitchReach Compliance CodeTime@Peak Reflow Temperature-Max (s)Pin CountJESD-30 CodeQualification StatusSupply Voltage-Max (Vsup)Temperature GradeSupply Voltage-Min (Vsup)Number of PortsOperating ModeSupply Current-MaxOrganizationOutput CharacteristicsSeated Height-MaxMemory WidthStandby Current-MaxMemory DensityParallel/SerialMemory IC TypeProgramming VoltageSerial Bus TypeEnduranceWrite Cycle Time-Max (tWC)Data Retention Time-MinWrite ProtectionStandby Voltage-MinOutput EnableI2C Control ByteLengthWidth
NXP Semiconductors PCA8581T
Mfr. Part #
PCA8581T
Twicea Part #
637-535-PCA8581T 		NXP Semiconductors
IC 128 X 8 EEPROM 5V
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    		 YES 8 - 0.1 MHz NXP SEMICONDUCTORS 128 words 128 85 °C -25 °C PLASTIC/EPOXY SOP SOP, - RECTANGULAR SMALL OUTLINE Obsolete SOIC Yes 5 V - Yes EAR99 - 10 YEAR OF DATA RETENTION 8542.32.00.51 DUAL GULL WING 260 1 1.27 mm unknown 40 8 R-PDSO-G8 Not Qualified 5.5 V OTHER 4.5 V - SYNCHRONOUS - 128X8 OPEN-DRAIN 1.75 mm 8 - 1024 bit SERIAL EEPROM 5 V - - 10 ms 10 - - - - 4.9 mm 3.9 mm
    PCA8581T
    PCA8581T

    637-535-PCA8581T NXP Semiconductors
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    NXP Semiconductors MCM6949YJ12
    Mfr. Part #
    MCM6949YJ12
    Twicea Part #
    637-535-MCM6949YJ12     		NXP Semiconductors
    Description: Standard SRAM
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      		 YES 32 12 ns - NXP SEMICONDUCTORS 1048576 words 1000000 70 °C - PLASTIC/EPOXY SOJ SOJ, - RECTANGULAR SMALL OUTLINE Obsolete - - 3.3 V - - 3A991.B.2.A - - 8542.32.00.41 DUAL J BEND - 1 1.27 mm unknown - - R-PDSO-J32 - 3.63 V COMMERCIAL 3.135 V - ASYNCHRONOUS - 1MX4 - 3.75 mm 4 - 4194304 bit PARALLEL STANDARD SRAM - - - - - - - - - 20.955 mm 10.16 mm
      MCM6949YJ12
      MCM6949YJ12

      637-535-MCM6949YJ12 NXP Semiconductors
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      pSemi P4C164-20PC
      Mfr. Part #
      P4C164-20PC
      Twicea Part #
      637-535-P4C164-20PC       		pSemi
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        P4C164-20PC
        P4C164-20PC

        637-535-P4C164-20PC pSemi
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        NXP Semiconductors PCD80728HL/B00/4
        Mfr. Part #
        PCD80728HL/B00/4
        Twicea Part #
        637-535-PCD80728HL/B00/4         		NXP Semiconductors
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          PCD80728HL/B00/4
          PCD80728HL/B00/4

          637-535-PCD80728HL/B00/4 NXP Semiconductors
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          NXP Semiconductors HEF4720BT
          Mfr. Part #
          HEF4720BT
          Twicea Part #
          637-535-HEF4720BT           		NXP Semiconductors
          IC 256 X 1 STANDARD SRAM
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            		 YES 16 580 ns - NXP SEMICONDUCTORS 256 words 256 85 °C -40 °C PLASTIC/EPOXY SOP PLASTIC, SO-16 SOP16,.4 RECTANGULAR SMALL OUTLINE Obsolete SOIC - 5 V - - EAR99 - - 8542.32.00.41 DUAL GULL WING - 1 1.27 mm compliant - 16 R-PDSO-G16 Not Qualified 15 V INDUSTRIAL 3 V 1 ASYNCHRONOUS - 256X1 3-STATE 1.75 mm 1 - 256 bit PARALLEL STANDARD SRAM - - - - - - 3 V NO - 9.9 mm 3.9 mm
            HEF4720BT
            HEF4720BT

            637-535-HEF4720BT NXP Semiconductors
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            NXP Semiconductors MCM69R737AZP6
            Mfr. Part #
            MCM69R737AZP6
            Twicea Part #
            637-535-MCM69R737AZP6             		NXP Semiconductors
            Late-Write SRAM
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              		 YES 119 3 ns - NXP SEMICONDUCTORS 131072 words 128000 70 °C - PLASTIC/EPOXY BGA BGA, - RECTANGULAR GRID ARRAY Obsolete - - 3.3 V - - 3A991.B.2.A - - 8542.32.00.41 BOTTOM BALL - 1 1.27 mm unknown - - R-PBGA-B119 - 3.6 V COMMERCIAL 3.15 V - SYNCHRONOUS - 128KX36 - 2.4 mm 36 - 4718592 bit PARALLEL LATE-WRITE SRAM - - - - - - - - - 22 mm 14 mm
              MCM69R737AZP6
              MCM69R737AZP6

              637-535-MCM69R737AZP6 NXP Semiconductors
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              NXP Semiconductors MCM6949YJ8
              Mfr. Part #
              MCM6949YJ8
              Twicea Part #
              637-535-MCM6949YJ8               		NXP Semiconductors
              Standard SRAM
              Datasheet Compare
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                		 YES 32 8 ns - NXP SEMICONDUCTORS 1048576 words 1000000 70 °C - PLASTIC/EPOXY SOJ SOJ, - RECTANGULAR SMALL OUTLINE Active - - 3.3 V - - 3A991.B.2.A - - 8542.32.00.41 DUAL J BEND - 1 1.27 mm unknown - - R-PDSO-J32 - 3.63 V COMMERCIAL 3.135 V - ASYNCHRONOUS - 1MX4 - 3.75 mm 4 - 4194304 bit PARALLEL STANDARD SRAM - - - - - - - - - 20.955 mm 10.16 mm
                MCM6949YJ8
                MCM6949YJ8

                637-535-MCM6949YJ8 NXP Semiconductors
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                NXP Semiconductors PCB2421P
                Mfr. Part #
                PCB2421P
                Twicea Part #
                637-535-PCB2421P                 		NXP Semiconductors
                IC I2C/2-WIRE SERIAL EEPROM
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                  		 NO 8 - 0.1 MHz NXP SEMICONDUCTORS 128 words 128 70 °C - PLASTIC/EPOXY DIP DIP, DIP8,.3 DIP8,.3 RECTANGULAR IN-LINE Obsolete DIP No 5 V - - EAR99 - - 8542.32.00.51 DUAL THROUGH-HOLE - 1 2.54 mm unknown - 8 R-PDIP-T8 Not Qualified 5.5 V COMMERCIAL 4.5 V - SYNCHRONOUS 0.001 mA 128X8 - 4.2 mm 8 0.00003 A 1024 bit SERIAL EEPROM - I2C 10000 Write/Erase Cycles - 10 HARDWARE - - 1010000R 9.5 mm 7.62 mm
                  PCB2421P
                  PCB2421P

                  637-535-PCB2421P NXP Semiconductors
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                  NXP Semiconductors HEF4720BDB
                  Mfr. Part #
                  HEF4720BDB
                  Twicea Part #
                  637-535-HEF4720BDB                   		NXP Semiconductors
                  IC 256 X 1 STANDARD SRAM
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                    		 NO 16 580 ns - NXP SEMICONDUCTORS 256 words 256 85 °C -40 °C CERAMIC, GLASS-SEALED DIP DIP, - RECTANGULAR IN-LINE Obsolete - - 5 V - - EAR99 - - 8542.32.00.41 DUAL THROUGH-HOLE - 1 2.54 mm unknown - - R-GDIP-T16 Not Qualified 15 V INDUSTRIAL 3 V 1 ASYNCHRONOUS - 256X1 3-STATE 5.08 mm 1 - 256 bit PARALLEL STANDARD SRAM - - - - - - 3 V NO - - 7.62 mm
                    HEF4720BDB
                    HEF4720BDB

                    637-535-HEF4720BDB NXP Semiconductors
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                    NXP Semiconductors MCM69P737TQ4R
                    Mfr. Part #
                    MCM69P737TQ4R
                    Twicea Part #
                    637-535-MCM69P737TQ4R                     		NXP Semiconductors
                    Cache SRAM
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                      		 - - - - NXP SEMICONDUCTORS - - - - - - - - - - Obsolete - - - - - EAR99 - - 8542.32.00.41 - - - - - unknown - - - - - - - - - - - - - - - - - CACHE SRAM - - - - - - - - - - -
                      MCM69P737TQ4R
                      MCM69P737TQ4R

                      637-535-MCM69P737TQ4R NXP Semiconductors
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                      NXP Semiconductors PCF8594T
                      Mfr. Part #
                      PCF8594T
                      Twicea Part #
                      637-535-PCF8594T                       		NXP Semiconductors
                      Description: IC 512 X 8 I2C/2-WIRE SERIAL EEPROM
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                        		 YES 8 - 0.1 MHz NXP SEMICONDUCTORS 512 words 512 85 °C -40 °C PLASTIC/EPOXY SOP SOP, - RECTANGULAR SMALL OUTLINE Obsolete SOIC - 5 V - - EAR99 - I2C BUS INTERFACE; PAGE WRITE; FMAX IS 100KHZ 8542.32.00.51 DUAL GULL WING - 1 1.27 mm unknown - 8 R-PDSO-G8 Not Qualified 6 V INDUSTRIAL 2.5 V - SYNCHRONOUS - 512X8 - 1.75 mm 8 - 4096 bit SERIAL EEPROM - I2C - 25 ms - - - - - 4.9 mm 3.9 mm
                        PCF8594T
                        PCF8594T

                        637-535-PCF8594T NXP Semiconductors
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                        QP Semiconductor 5962-8606306YC
                        Mfr. Part #
                        5962-8606306YC
                        Twicea Part #
                        637-535-5962-8606306YC                         		QP Semiconductor
                        Description: UVPROM
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                          		 YES 32 120 ns - QP SEMICONDUCTOR INC 32768 words 32000 125 °C -55 °C CERAMIC, METAL-SEALED COFIRED QCCN QCCN, - RECTANGULAR CHIP CARRIER Transferred - No 5 V e0 No 3A001.A.2.C TIN LEAD - 8542.32.00.61 QUAD NO LEAD - 1 1.27 mm unknown - - R-CQCC-N32 Not Qualified 5.5 V MILITARY 4.5 V - ASYNCHRONOUS - 32KX8 - 3.3 mm 8 - 262144 bit PARALLEL UVPROM - - - - - - - - - 13.97 mm 11.43 mm
                          5962-8606306YC
                          5962-8606306YC

                          637-535-5962-8606306YC QP Semiconductor
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                          NXP Semiconductors PCF85116-3T/01
                          Mfr. Part #
                          PCF85116-3T/01
                          Twicea Part #
                          637-535-PCF85116-3T/01                           		NXP Semiconductors
                          IC 2K X 8 I2C/2-WIRE SERIAL EEPROM
                          Datasheet Compare
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                            		 YES 8 - 0.4 MHz NXP SEMICONDUCTORS 2048 words 2000 85 °C -40 °C PLASTIC/EPOXY SOP 3.90 MM, PLASTIC, SOT-96-1, SO-8 SOP8,.25 RECTANGULAR SMALL OUTLINE Obsolete SOIC Yes 3 V e4 - EAR99 Nickel/Palladium/Gold (Ni/Pd/Au) - 8542.32.00.51 DUAL GULL WING - 1 1.27 mm unknown - 8 R-PDSO-G8 Not Qualified 5.5 V INDUSTRIAL 2.7 V - SYNCHRONOUS 0.001 mA 2KX8 - 1.75 mm 8 0.000006 A 16384 bit SERIAL EEPROM - I2C 1000000 Write/Erase Cycles 10 ms 20 HARDWARE - - 1010MMMR 4.9 mm 3.9 mm
                            PCF85116-3T/01
                            PCF85116-3T/01

                            637-535-PCF85116-3T/01 NXP Semiconductors
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                            NXP Semiconductors PCB2421T
                            Mfr. Part #
                            PCB2421T
                            Twicea Part #
                            637-535-PCB2421T                             		NXP Semiconductors
                            IC 128 X 8 I2C/2-WIRE SERIAL EEPROM
                            Datasheet Compare
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                              		 YES 8 - 0.1 MHz NXP SEMICONDUCTORS 128 words 128 70 °C - PLASTIC/EPOXY SOP SOP, SOP8,.25 SOP8,.25 RECTANGULAR SMALL OUTLINE Obsolete SOIC No 5 V - - EAR99 - - 8542.32.00.51 DUAL GULL WING - 1 1.27 mm unknown - 8 R-PDSO-G8 Not Qualified 5.5 V COMMERCIAL 4.5 V - SYNCHRONOUS 0.001 mA 128X8 OPEN-DRAIN 1.75 mm 8 0.00003 A 1024 bit SERIAL EEPROM - I2C 10000 Write/Erase Cycles 20 ms 10 HARDWARE - - 1010000R 4.9 mm 3.9 mm
                              PCB2421T
                              PCB2421T

                              637-535-PCB2421T NXP Semiconductors
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                              NXP Semiconductors MCM67A618AFN10
                              Mfr. Part #
                              MCM67A618AFN10
                              Twicea Part #
                              637-535-MCM67A618AFN10                               		NXP Semiconductors
                              Cache SRAM
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                                		 YES 52 10 ns - NXP SEMICONDUCTORS 65536 words 64000 70 °C - PLASTIC/EPOXY QCCJ LCC-52 - SQUARE CHIP CARRIER Obsolete - - 5 V - - 3A991.B.2.A - - 8542.32.00.41 QUAD J BEND - 1 1.27 mm unknown - - S-PQCC-J52 - 5.25 V COMMERCIAL 4.75 V - ASYNCHRONOUS - 64KX18 - 4.57 mm 18 - 1179648 bit PARALLEL CACHE SRAM - - - - - - - - - 19.125 mm 19.125 mm
                                MCM67A618AFN10
                                MCM67A618AFN10

                                637-535-MCM67A618AFN10 NXP Semiconductors
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                                NXP Semiconductors MCM69P737ZP3.5
                                Mfr. Part #
                                MCM69P737ZP3.5
                                Twicea Part #
                                637-535-MCM69P737ZP3.5                                 		NXP Semiconductors
                                Cache SRAM
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                                  		 - - - - NXP SEMICONDUCTORS - - - - - - - - - - Obsolete - - - - - EAR99 - - 8542.32.00.41 - - - - - unknown - - - - - - - - - - - - - - - - - CACHE SRAM - - - - - - - - - - -
                                  MCM69P737ZP3.5
                                  MCM69P737ZP3.5

                                  637-535-MCM69P737ZP3.5 NXP Semiconductors
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                                  NXP Semiconductors MCM69P618CTQ6
                                  Mfr. Part #
                                  MCM69P618CTQ6
                                  Twicea Part #
                                  637-535-MCM69P618CTQ6                                   		NXP Semiconductors
                                  Cache SRAM
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                                    		 YES 100 6 ns - NXP SEMICONDUCTORS 65536 words 64000 70 °C - PLASTIC/EPOXY LQFP LQFP, - RECTANGULAR FLATPACK, LOW PROFILE Obsolete - - 3.3 V - - 3A991.B.2.A - - 8542.32.00.41 QUAD GULL WING - 1 0.65 mm unknown - - R-PQFP-G100 - 3.6 V COMMERCIAL 3.135 V - SYNCHRONOUS - 64KX18 - 1.6 mm 18 - 1179648 bit PARALLEL CACHE SRAM - - - - - - - - - 20 mm 14 mm
                                    MCM69P618CTQ6
                                    MCM69P618CTQ6

                                    637-535-MCM69P618CTQ6 NXP Semiconductors
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                                    NXP Semiconductors PCF8581T
                                    Mfr. Part #
                                    PCF8581T
                                    Twicea Part #
                                    637-535-PCF8581T                                     		NXP Semiconductors
                                    IC 128 X 8 I2C/2-WIRE SERIAL EEPROM
                                    Datasheet Compare
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                                      		 YES 8 - 0.1 MHz NXP SEMICONDUCTORS 128 words 128 85 °C -40 °C PLASTIC/EPOXY SOP MINI, PLASTIC, SOT-176C, SOL-8 - RECTANGULAR SMALL OUTLINE Obsolete SOIC - 5 V - - EAR99 - I2C BUS INTERFACE; PAGE WRITE 8542.32.00.51 DUAL GULL WING - 1 1.27 mm unknown - 8 R-PDSO-G8 Not Qualified 5.5 V INDUSTRIAL 4.5 V - SYNCHRONOUS - 128X8 - 2.65 mm 8 - 1024 bit SERIAL EEPROM - I2C - 25 ms - - - - - 7.6 mm 7.55 mm
                                      PCF8581T
                                      PCF8581T

                                      637-535-PCF8581T NXP Semiconductors
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                                      NXP Semiconductors PCF8582C
                                      Mfr. Part #
                                      PCF8582C
                                      Twicea Part #
                                      637-535-PCF8582C                                       		NXP Semiconductors
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                                        PCF8582C
                                        PCF8582C

                                        637-535-PCF8582C NXP Semiconductors
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                                        NXP Semiconductors MCM63P733ATQ150
                                        Mfr. Part #
                                        MCM63P733ATQ150
                                        Twicea Part #
                                        637-535-MCM63P733ATQ150                                         		NXP Semiconductors
                                        Description: Cache SRAM
                                        Datasheet Compare
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                                          		 YES 100 3.8 ns - NXP SEMICONDUCTORS 131072 words 128000 70 °C - PLASTIC/EPOXY LQFP LQFP, - RECTANGULAR FLATPACK, LOW PROFILE Active - - 3.3 V - - 3A991.B.2.A - PIPELINED ARCHITECTURE 8542.32.00.41 QUAD GULL WING - 1 0.65 mm unknown - - R-PQFP-G100 - 3.6 V COMMERCIAL 3.135 V - SYNCHRONOUS - 128KX32 - 1.6 mm 32 - 4194304 bit PARALLEL CACHE SRAM - - - - - - - - - 20 mm 14 mm
                                          MCM63P733ATQ150
                                          MCM63P733ATQ150

                                          637-535-MCM63P733ATQ150 NXP Semiconductors
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                                          Integrated Circuits (ICs)

                                          Memory definition: Memory is a component used to store programs and various data information. A memory cell is actually a type of sequential logic circuit. A m... Memory Product Listing: PCA8581T,MCM6949YJ12,P4C164-20PC,PCD80728HL/B00/4,HEF4720BT.Integrated Circuits (ICs) type:Embedded - Microcontrollers(134263),Memory(116337),PMIC - Voltage Regulators - Linear(107072),PMIC - Supervisors(101983),Embedded - FPGAs (Field Programmable Gate Array)(62862) .Memory has 30 pieces of spot stock price information, you can click the "RFQ" button to confirm the inventory and price with the Twicea.