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SN74ALVC245DW 데이터시트(PDF) 1 Page - Texas Instruments |
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SN74ALVC245DW 데이터시트(HTML) 1 Page - Texas Instruments |
1 / 19 page www.ti.com FEATURES 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) 1 20 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 SN74ALVC245 OCTAL BUS TRANSCEIVER WITH 3-STATE OUTPUTS SCES271D – APRIL 1999 – REVISED JULY 2004 • ±24-mA Output Drive at 3.3 V • Operates from 1.65 V to 3.6 V • Latch-Up Performance Exceeds 250 mA Per JESD 17 • Max tpd of 3.4 ns at 3.3 V 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(1) ORDERABLE PART NUMBER TOP-SIDE MARKING QFN - RGY Tape and reel SN74ALVC245RGYR VA245 Tube SN74ALVC245DW SOIC - DW ALVC245 Tape and reel SN74ALVC245DWR -40 °C to 85°C SOP - NS Tape and reel SN74ALVC245NSR ALVC245 Tube SN74ALVC245PW TSSOP - PW VA245 Tape and reel SN74ALVC245PWR TVSOP - DGV Tape and reel SN74ALVC245DGVR VA245 (1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. 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. PRODUCTION DATA information is current as of publication date. Copyright © 1999–2004, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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