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SN74F299DWG4 Folha de dados(PDF) 1 Page - Texas Instruments |
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SN74F299DWG4 Folha de dados(HTML) 1 Page - Texas Instruments |
1 / 13 page The SN54F299 is obsolete and no longer supplied. SN54F299, SN74F299 8BIT UNIVERSAL SHIFT/STORAGE REGISTERS WITH 3STATE OUTPUTS SDFS071B − MARCH 1987 − REVISED APRIL 2004 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Four Modes of Operation: − Hold (Store) − Shift Right − Shift Left − Load Data D Operates With Outputs Enabled or at High Impedance D 3-State Outputs Drive Bus Lines Directly D Can Be Cascaded for N-Bit Word Lengths D Direct Overriding Clear D Applications: − Stacked or Pushdown Registers − Buffer Storage − Accumulator Registers description/ordering information These 8-bit universal shift /storage registers feature multiplexed I/O ports to achieve full 8-bit data handling in a single 20-pin package. Two function-select (S0, S1) inputs and two output-enable (OE1, OE2) inputs can be used to choose the modes of operation listed in the function table. Synchronous parallel loading is accomplished by taking both S0 and S1 high. This places the 3-state outputs in a high-impedance state and permits data that is applied on the I/O ports to be clocked into the register. Reading out of the register can be accomplished while the outputs are enabled in any mode. Clearing occurs when the clear (CLR) input is low. Taking either OE1 or OE2 high disables the outputs but has no effect on clearing, shifting, or storage of data. ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP − N Tube of 20 SN74F299N SN74F299N 0 °C to 70°C SOIC − DW Tube of 25 SN74F299DW F299 0 °C to 70°C SOIC − DW Reel of 2000 SN74F299DWR F299 SOP − NS Reel of 2000 SN74F299NSR 74F299 † Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package. Copyright 2004, 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. SN54F299 ...J PACKAGE SN74F299 ...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 S0 OE1 OE2 G/QG E/QE C/QC A/QA QA′ CLR GND VCC S1 SL QH′ H/QH F/QF D/QD B/QB CLK SR 32 1 20 19 910 11 12 13 4 5 6 7 8 18 17 16 15 14 SL QH′ H/QH F/QF D/QD G/QG E/QE C/QC A/QA QA′ SN54F299 . . . 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. |
Nº de peça semelhante - SN74F299DWG4 |
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Descrição semelhante - SN74F299DWG4 |
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