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CDCR81

CDCR81
Mfr. #:
CDCR81
Fabricante:
TI
Descripción:
Ciclo vital:
Nuevo de este fabricante.
Ficha de datos:
CDCR81 Ficha de datos
Entrega:
DHL FedEx Ups TNT EMS
Pago:
T/T Paypal Visa MoneyGram Western Union
ECAD Model:
Atributo del producto
Valor de atributo
Fabricante
TI
categoria de producto
Reloj / sincronización: aplicación específica
Tags
CDCR81, CDCR8, CDCR, CDC
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Step1: Vacuum Packaging with PL
Step1:
Vacuum Packaging with PL
Step2: Anti-Static Bag
Step2:
Anti-Static Bag
Step3: Packaging Boxes
Step3:
Packaging Boxes
***th Star Micro
the direct rambus clock generator (drcg) provides the necessary clock signals to support a direct rambus memory subsystem. it includes signals to synchronize the direct rambus channel clock to an external system or processor clock. it is designed to support direct rambus memory on desktop workstation server and mobile pc motherboards. drcg also provides an off-the-shelf solution for a broad range of direct rambus memory applications. the drcg provides clock multiplication and phase alignment for a direct rambus memory subsystem to enable synchronous communication between the rambus channel and asic clock domains. in a direct rambus memory subsystem a system clock source provides the refclk and pclk clock references to the drcg and memory controller respectively. view all in datasheet
***as Instruments
The Direct Rambus clock generator (DRCG) provides the necessary clock signals to support a Direct Rambus memory subsystem. It includes signals to synchronize the Direct Rambus channel clock to an external system or processor clock. It is designed to support Direct Rambus memory on desktop, workstation, server and mobile PC motherboards. DRCG also provides an off-the-shelf solution for a broad range of Direct Rambus memory applications. The DRCG provides clock multiplication and phase alignment for a Direct Rambus memory subsystem to enable synchronous communication between the Rambus channel and ASIC clock domains. In a Direct Rambus memory subsystem, a system clock source provides the REFCLK and PCLK clock references to the DRCG and memory controller, respectively. The DRCG multiplies REFCLK and drives a high-speed BUSCLK to RDRAMs and the memory controller. Gear ratio logic in the memory controller divides the PCLK and BUSCLK frequencies by ratios M and N such that PCLK/M = SYNCLK/N, where SYNCLK = BUSCLK/4. The DRCG detects the phase difference between PCLK/M and SYNCLK/N and adjusts the phase of BUSCLK such that the skew between PCLK/M and SYNCLK/N is minimized. This allows data to be transferred across the SYNCLK/PCLK boundary without incurring additional latency. User control is provided by multiply and mode selection terminals. The multiply terminals provide selection of one of four clock frequency multiply ratios, generating BUSCLK frequencies ranging from 267 MHz to 400 MHz with clock references ranging from 33 MHz to 100 MHz. The CDCR81 meets Rambus Clock Generator, Revision 1.0 specification up to 300 MHz. The mode select terminals can be used to select a bypass mode where the frequency multiplied reference clock is directly output to the Rambus channel for systems where synchronization between the Rambus clock and a system clock is not required. Test modes are provided to bypass the PLL and output REFCLK on the Rambus channel and to place the outputs in a high-impedance state for board testing. The CDCR81 is characterized for operation over free-air temperatures of 0C to 85C.
Parte # Mfg. Descripción Valores Precio
CDCR81DBQR
DISTI # 296-6720-2-ND		Texas InstrumentsIC DIRECT RAMBUS CLK GEN 24-QSOP
RoHS: Compliant
Min Qty: 2500
Container: Tape & Reel (TR)		Limited Supply - Call
    CDCR81DBQR
    DISTI # 296-6720-1-ND    		Texas InstrumentsIC DIRECT RAMBUS CLK GEN 24-QSOP
    RoHS: Compliant
    Min Qty: 1
    Container: Cut Tape (CT)    		Limited Supply - Call
      CDCR81DBQR
      DISTI # 296-6720-6-ND      		Texas InstrumentsIC DIRECT RAMBUS CLK GEN 24-QSOP
      RoHS: Compliant
      Min Qty: 1
      Container: Digi-Reel®      		Limited Supply - Call
        CDCR81DBQRG4
        DISTI # CDCR81DBQRG4-ND        		Texas InstrumentsIC DIRECT RAMBUS CLK GEN 24-QSOP
        RoHS: Compliant
        Min Qty: 2500
        Container: Tape & Reel (TR)        		Limited Supply - Call
          CDCR81DBQR
          DISTI # CDCR81DBQR          		Texas InstrumentsPLL Clock Generator Single Up to 300MHz 24-Pin SSOP T/R (Alt: CDCR81DBQR)
          RoHS: Compliant
          Min Qty: 2500
          Container: Tape and Reel          		Europe - 0
          • 25000:€3.8900
          • 15000:€4.0900
          • 10000:€4.2900
          • 5000:€4.7900
          • 2500:€5.3900
          CDCR81DBQR
          DISTI # 595-CDCR81DBQR          		Texas InstrumentsClock Generators & Support Products Direct RAMBUS Clock Gen
          RoHS: Compliant          		0
            CDCR81DBQRG4
            DISTI # 595-CDCR81DBQRG4            		Texas InstrumentsClock Generators & Support Products Direct RAMBUS Clock Gen
            RoHS: Compliant            		0
              CDCR81DBQRTexas InstrumentsProcessor Specific Clock Generator, 400MHz, CMOS, PDSO24
              RoHS: Compliant              		14640
              • 1000:$4.2100
              • 500:$4.4300
              • 100:$4.6100
              • 25:$4.8100
              • 1:$5.1800
              CDCR81DBQRTexas Instruments 744
                Imagen Parte # Descripción
                CDCL1810ARGZT

                Mfr.#: CDCL1810ARGZT

                OMO.#: OMO-CDCL1810ARGZT

                		 Clock Buffer 1.8V 1-to-10HighPerf Differential Clock
                CDCEL937PWR

                Mfr.#: CDCEL937PWR

                OMO.#: OMO-CDCEL937PWR

                		 Clock Synthesizer / Jitter Cleaner Programmable 3-PLL VCXO Clock Synth
                CDC930DLG4

                Mfr.#: CDC930DLG4

                OMO.#: OMO-CDC930DLG4

                		 Phase Locked Loops - PLL 133-MHz Clock Synth/ Drvr
                CDCH10D48/ANP-271KC

                Mfr.#: CDCH10D48/ANP-271KC

                OMO.#: OMO-CDCH10D48-ANP-271KC

                		 Fixed Inductors SMD Power Inductor Unshielded
                CDC303DR

                Mfr.#: CDC303DR

                OMO.#: OMO-CDC303DR-1190

                		 Low Skew Clock Driver, 303 Series, 6 True Output(s), 2 Inverted Output(s), TTL, PDSO16
                CDC5D23BNP-5R6MC

                Mfr.#: CDC5D23BNP-5R6MC

                OMO.#: OMO-CDC5D23BNP-5R6MC-SUMIDA

                		 Fixed Inductors 5.6uH 1.44A 20% 100KHz LP INDUCTOR
                CDCLVD110VFRG4

                Mfr.#: CDCLVD110VFRG4

                OMO.#: OMO-CDCLVD110VFRG4-TEXAS-INSTRUMENTS

                		 Clock Buffer 1-to-10 LVDS Clock Buffe
                CDCM1804RGET

                Mfr.#: CDCM1804RGET

                OMO.#: OMO-CDCM1804RGET-TEXAS-INSTRUMENTS

                		 Clock Buffer 1:3 LVPECL CLOCK BUFFER
                CDC421A250RGER

                Mfr.#: CDC421A250RGER

                OMO.#: OMO-CDC421A250RGER-TEXAS-INSTRUMENTS

                		 Clock Synthesizer / Jitter Cleaner Fully Int Fix Freq Lo-Jitter Crys Osc
                CDCE949PW

                Mfr.#: CDCE949PW

                OMO.#: OMO-CDCE949PW-TEXAS-INSTRUMENTS

                		 Clock Synthesizer / Jitter Cleaner Progr 4-PLL VCXO Clock Synth
                Disponibilidad
                Valores:
                Available
                En orden:
                3000
                Ingrese la cantidad:
                El precio actual de CDCR81 es solo de referencia, si desea obtener el mejor precio, envíe una consulta o envíe un correo electrónico directo a nuestro equipo de ventas [email protected]
                Precio de referencia (USD)
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                Ext. Precio
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                Debido a la escasez de semiconductores a partir de 2021, el precio inferior es el precio normal antes de 2021. Envíe una consulta para confirmar.
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