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SN74CBTLV3245ADBQR 데이터시트(PDF) 1 Page - Texas Instruments |
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SN74CBTLV3245ADBQR 데이터시트(HTML) 1 Page - Texas Instruments |
1 / 11 page SN74CBTLV3245A LOW VOLTAGE OCTAL FET BUS SWITCH SCDS034L − JULY 1997 − REVISED OCTOBER 2003 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Standard ’245-Type Pinout D 5-Ω Switch Connection Between Two Ports D Rail-to-Rail Switching on Data I/O Ports D Ioff Supports Partial-Power-Down Mode Operation D Latch-Up Performance Exceeds 250 mA Per JESD 17 D ESD Protection Exceeds JESD 22 − 2000-V Human-Body Model (A114-A) − 200-V Machine Model (A115-A) 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 NC A1 A2 A3 A4 A5 A6 A7 A8 GND VCC OE B1 B2 B3 B4 B5 B6 B7 B8 DBQ, DGV, DW, OR PW PACKAGE (TOP VIEW) NC − No internal connection RGY PACKAGE (TOP VIEW) 120 10 11 2 3 4 5 6 7 8 9 19 18 17 16 15 14 13 12 OE B1 B2 B3 B4 B5 B6 B7 A1 A2 A3 A4 A5 A6 A7 A8 NC − No internal connection description/ordering information The SN74CBTLV3245A provides eight bits of high-speed bus switching in a standard ’245 device pinout. The low on-state resistance of the switch allows connections to be made with minimal propagation delay. The device is organized as one 8-bit switch. When output enable (OE) is low, the 8-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. This device is fully specified for partial-power-down applications using Ioff. The Ioff feature ensures that damaging current will not backflow through the device when it is powered down. The device has isolation during power off. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING QFN − RGY Tape and reel SN74CBTLV3245ARGYR CL245A SOIC − DW Tube SN74CBTLV3245ADW CBTLV3245A −40 °C to 85°C SOIC − DW Tape and reel SN74CBTLV3245ADWR CBTLV3245A −40 °C to 85°C SSOP (QSOP) − DBQ Tape and reel SN74CBTLV3245ADBQR CBTLV3245A TSSOP − PW Tape and reel SN74CBTLV3245APWR CL245A TVSOP − DGV Tape and reel SN74CBTLV3245ADGVR CL245A † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. Copyright 2003, 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. 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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