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SN74AC245PWG4 Datasheet(PDF) 1 Page - Texas Instruments |
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SN74AC245PWG4 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 22 page SN54AC245, SN74AC245 OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCAS461F − FEBRUARY 1995 − REVISED OCTOBER 2003 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D 2-V to 6-V V CC Operation D Inputs Accept Voltages to 6 V D Max t pd of 7 ns at 5 V description/ordering information The ’AC245 octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements. When the output-enable (OE) is low, the device passes noninverted 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. A high on OE disables the device so that 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 PDIP − N Tube SN74AC245N SN74AC245N SOIC DW Tube SN74AC245DW AC245 SOIC − DW Tape and reel SN74AC245DWR AC245 −40 °C to 85°C SOP − NS Tape and reel SN74AC245NSR AC245 40 C to 85 C SSOP − DB Tape and reel SN74AC245DBR AC245 TSSOP PW Tube SN74AC245PW AC245 TSSOP − PW Tape and reel SN74AC245PWR AC245 CDIP − J Tube SNJ54AC245J SNJ54AC245J −55 °C to 125°C CFP − W Tube SNJ54AC245W SNJ54AC245W 55 C to 125 C LCCC − FK Tube SNJ54AC245FK SNJ54AC245FK † 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. SN54AC245 . . . J OR W PACKAGE SN74AC245 . . . DB, DW, N, NS, OR PW PACKAGE (TOP VIEW) 3 2 1 20 19 9 10 11 12 13 4 5 6 7 8 18 17 16 15 14 B1 B2 B3 B4 B5 A3 A4 A5 A6 A7 SN54AC245...FK 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 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. On products compliant to MIL-PRF-38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters. |
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