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SN74BCT2245NSRE4 数据表(PDF) 1 Page - Texas Instruments |
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SN74BCT2245NSRE4 数据表(HTML) 1 Page - Texas Instruments |
1 / 11 page SN74BCT2245 OCTAL TRANSCEIVER AND LINE/MOS DRIVER WITH 3-STATE OUTPUTS SCBS102C – FEBRUARY 1992 – REVISED MARCH 2003 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Operating Voltage Range of 4.5 V to 5.5 V D State-of-the-Art BiCMOS Design Significantly Reduces ICCZ D B Port Has Equivalent 33-Ω Series Resistors, So No External Resistors Are Required D ESD Protection Exceeds JESD 22 – 2000-V Human-Body Model (A114-A) – 200-V Machine Model (A115-A) – 1000-V Charged-Device Model (C101) description/ordering information The SN74BCT2245 octal transceiver and line/ MOS driver is designed for asynchronous communication between data buses. The device allows data transmission 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 disable the devices so that both 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. The B-port outputs, which are designed to source or sink up to 12 mA, include 33- Ω series resistors to reduce overshoot and undershoot. ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP – N Tube SN74BCT2245N SN74BCT2245N SOIC DW Tube SN74BCT2245DW BCT2245 0 °C to 70°C SOIC – DW Tape and reel SN74BCT2245DWR BCT2245 SOP – NS Tape and reel SN74BCT2245NSR BCT2245 SSOP – DB Tape and reel SN74BCT2245DBR BA245 † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. FUNCTION TABLE INPUTS OPERATION OE DIR OPERATION L L B data to A bus L H A data to B bus H X Isolation DB, DW, N, OR NS 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 Copyright 2003, Texas Instruments Incorporated 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. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
类似零件编号 - SN74BCT2245NSRE4 |
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类似说明 - SN74BCT2245NSRE4 |
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