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SN74ALVC245DWR 数据表(PDF) 1 Page - Texas Instruments |
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SN74ALVC245DWR 数据表(HTML) 1 Page - Texas Instruments |
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1 / 11 page  SN74ALVC245 OCTAL BUS TRANSCEIVER WITH 3STATE OUTPUTS SCES271C − APRIL 1999 − REVISED SEPTEMBER 2003 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Operates From 1.65 V to 3.6 V D Max tpd of 3.4 ns at 3.3 V D ±24-mA Output Drive at 3.3 V D Latch-Up Performance Exceeds 250 mA Per JESD 17 DGV, DW, NS, OR PW PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 DIR A1 A2 A3 A4 A5 A6 A7 A8 GND VCC OE B1 B2 B3 B4 B5 B6 B7 B8 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 description/ordering information This octal bus transceiver is designed for 1.65-V to 3.6-V VCC operation. The SN74ALVC245 is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so the buses are effectively isolated. 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 SN74ALVC245RGYR VA245 SOIC − DW Tube SN74ALVC245DW ALVC245 SOIC − DW Tape and reel SN74ALVC245DWR ALVC245 −40 °C to 85°C SOP − NS Tape and reel SN74ALVC245NSR ALVC245 −40 C to 85 C TSSOP − PW Tube SN74ALVC245PW VA245 TSSOP − PW Tape and reel SN74ALVC245PWR VA245 TVSOP − DGV Tape and reel SN74ALVC245DGVR VA245 † 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. |
类似零件编号 - SN74ALVC245DWR |
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类似说明 - SN74ALVC245DWR |
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