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SN74CBTLV3857DGV Folha de dados(PDF) 1 Page - Texas Instruments |
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SN74CBTLV3857DGV Folha de dados(HTML) 1 Page - Texas Instruments |
1 / 5 page SN74CBTLV3857 LOW-VOLTAGE 10-BIT FET BUS SWITCH WITH INTERNAL PULLDOWN RESISTORS SCDS085B – OCTOBER 1998 – REVISED AUGUST 1999 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Enable Signal Is SSTL_2 Compatible D Flow-Through Architecture Optimizes PCB Layout D Designed for Use With 200 Mbit/s Double Data-Rate (DDR) SDRAM Applications D Switch On-State Resistance Is Designed to Eliminate Series Resistor to DDR SDRAM D Internal 10-kΩ Pulldown Resistors to Ground on B Port D Internal 50-kΩ Pullup Resistor on Output-Enable Input D Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II D Package Options Include Shrink Small-Outline (DBQ), Thin Very Small-Outline (DGV), Small-Outline (DW), and Thin Shrink Small-Outline (PW) Packages description This 10-bit FET bus switch is designed for 3-V to 3.6-V VCC operation and SSTL_2 output-enable (OE) input levels. When OE is low, the 10-bit bus switch is on, and port A is connected to port B. When OE is high, the switch is open, and the high-impedance state exists between the two ports. There are 10-k Ω pulldown resistors to ground on the B port. The FET switch on-state resistance is designed to replace the series terminating resistor in the SSTL_2 data path. The SN74CBTLV3857 is characterized for operation from –40 °C to 85°C. FUNCTION TABLE INPUT OE FUNCTION L A port = B port H Disconnect Copyright © 1999, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. DBQ, DGV, DW, OR PW PACKAGE (TOP VIEW) VREF A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 GND VCC OE B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. |
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Descrição semelhante - SN74CBTLV3857DGV |
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