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SN74BCT240DB Fiches technique(PDF) 1 Page - Texas Instruments |
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SN74BCT240DB Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 5 page SN54BCT240, SN74BCT240 OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS SCBS004E – OCTOBER 1987 – REVISED APRIL 1994 Copyright © 1994, Texas Instruments Incorporated 2–1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 • State-of-the-Art BiCMOS Design Significantly Reduces ICCZ • ESD Protection Exceeds 2000 V Per MIL-STD-883C, Method 3015 • 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers • Package Options Include Plastic Small-Outline (DW) and Shrink Small-Outline (DB) Packages, Ceramic Chip Carriers (FK) and Flatpacks (W), and Standard Plastic and Ceramic 300-mil DIPs (J, N) description These octal buffers and line drivers are designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. Taken together with the ′BCT241 and ′BCT244, these devices provide the choice of selected combinations of inverting and noninverting outputs, symmetrical OE (active-low output-enable) inputs, and complementary OE and OE inputs. These devices feature high fan-out and improved fan-in. The ′BCT240 is organized as two 4-bit buffers/line drivers with separate output-enable (OE) inputs. When OE is low, the device passes data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state. The SN54BCT240 is characterized for operation over the full military temperature range of – 55 °C to 125 °C. The SN74BCT240 is characterized for operation from 0 °C to 70°C. FUNCTION TABLE (each buffer) INPUTS OUTPUT OE A Y L H L L LH H X Z 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 SN54BCT240 ...J OR W PACKAGE SN74BCT240 . . . DB, DW OR N PACKAGE (TOP VIEW) 32 1 20 19 910 11 12 13 4 5 6 7 8 18 17 16 15 14 1Y1 2A4 1Y2 2A3 1Y3 1A2 2Y3 1A3 2Y2 1A4 SN54BCT240 . . . FK PACKAGE (TOP VIEW) 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. |
Numéro de pièce similaire - SN74BCT240DB |
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Description similaire - SN74BCT240DB |
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