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SN74BCT2244DWR Arkusz danych(PDF) 1 Page - Texas Instruments |
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SN74BCT2244DWR Arkusz danych(HTML) 1 Page - Texas Instruments |
1 / 13 page SN54BCT2244, SN74BCT2244 OCTAL BUFFERS AND LINE/MOS DRIVERS WITH 3-STATE OUTPUTS SCBS017D – SEPTEMBER 1988 – 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 Output Ports Have Equivalent 33-Ω Series Resistors, So No External Resistors Are Required D 3-State Outputs Drive Bus Lines or Buffer Memory Address Registers description/ordering information The ’BCT2244 devices are designed specifically to improve both the performance and density of 3-state memory address drivers, clock drivers, and bus-oriented receivers and transmitters. Together with the ’BCT2240 devices and SN74BCT2241, these devices provide the choice of selected combinations of inverting and noninverting outputs, symmetrical active-low output-enable (OE) inputs, and complementary OE and OE inputs. These devices feature high fan-out and improved fan-in. 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 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 SN74BCT2244N SN74BCT2244N 0 °Cto70°C SOIC DW Tube SN74BCT2244DW BCT2244 0 °C to 70°C SOIC – DW Tape and reel SN74BCT2244DWR BCT2244 SOP – NS Tape and reel SN74BCT2244NSR BCT2244 CDIP – J Tube SNJ54BCT2244J SNJ54BCT2244J –55 °C to 125°C CFP – W Tube SNJ54BCT2244W SNJ54BCT2244W LCCC – FK Tube SNJ54BCT2244FK SNJ54BCT2244FK † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. 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 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 SN54BCT2244 . . . FK PACKAGE (TOP VIEW) SN54BCT2244 ...J OR W PACKAGE SN74BCT2244 ...DW, N, OR NS PACKAGE (TOP VIEW) 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. 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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