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SN74ACT240DBR Datasheet(PDF) 1 Page - Texas Instruments |
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SN74ACT240DBR Datasheet(HTML) 1 Page - Texas Instruments |
1 / 18 page SN54ACT240, SN74ACT240 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCAS515C – JUNE 1995 – REVISED OCTOBER 2002 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D 4.5-V to 5.5-V VCC Operation D Inputs Accept Voltages to 5.5 V D Max tpd of 8.5 ns at 5 V D Inputs Are TTL Compatible SN54ACT240 ...J OR W PACKAGE SN74ACT240 . . . 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 1Y1 2A4 1Y2 2A3 1Y3 1A2 2Y3 1A3 2Y2 1A4 SN54ACT240 . . . FK PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 1OE 1A1 2Y4 1A2 2Y3 1A3 2Y2 1A4 2Y1 GND VCC 2OE 1Y1 2A4 1Y2 2A3 1Y3 2A2 1Y4 2A1 description/ordering information These octal buffers and line drivers are designed specifically to improve the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. The ’ACT240 devices are organized as two 4-bit buffers/drivers with separate output-enable (OE) inputs. When OE is low, the device passes inverted data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state. 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 SN74ACT240N SN74ACT240N SOIC DW Tube SN74ACT240DW ACT240 40 °Cto85°C SOIC – DW Tape and reel SN74ACT240DWR ACT240 –40 °C to 85°C SOP – NS Tape and reel SN74ACT240NSR ACT240 SSOP – DB Tape and reel SN74ACT240DBR AD240 TSSOP – PW Tape and reel SN74ACT240PWR AD240 CDIP – J Tube SNJ54ACT240J SNJ54ACT240J –55 °C to 125°C CFP – W Tube SNJ54ACT240W SNJ54ACT240W LCCC – FK Tube SNJ54ACT240FK SNJ54ACT240FK † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. Copyright 2002, 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. 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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