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SN74BCT574 датащи(PDF) 1 Page - Texas Instruments |
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SN74BCT574 датащи(HTML) 1 Page - Texas Instruments |
1 / 18 page SN54BCT574, SN74BCT574 OCTAL TRANSPARENT D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS SCBS074C – SEPTEMBER 1991 – 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 Full Parallel Access for Loading D ESD Protection Exceeds JESD 22 – 2000-V Human-Body Model (A114-A) – 200-V Machine Model (A115-A) – 1000-V Charged-Device Model (C101) 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 OE 1D 2D 3D 4D 5D 6D 7D 8D GND VCC 1Q 2Q 3Q 4Q 5Q 6Q 7Q 8Q CLK SN54BCT574 ...J OR W PACKAGE SN74BCT574 . . . DB, DW, N, OR NS PACKAGE (TOP VIEW) 32 1 20 19 910 11 12 13 4 5 6 7 8 18 17 16 15 14 2Q 3Q 4Q 5Q 6Q 3D 4D 5D 6D 7D SN54BCT574 . . . FK PACKAGE (TOP VIEW) description/ordering information These 8-bit flip-flops feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. The eight flip-flops of the ’BCT574 devices are edge-triggered D-type flip-flops. On the positive transition of the clock (CLK) input, the Q outputs are set to the logic levels that were set up at the data (D) inputs. A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without interface or pullup components. 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 SN74BCT574N SN74BCT574N SOIC DW Tube SN74BCT574DW BCT574 0 °C to 70°C SOIC – DW Tape and reel SN74BCT574DWR BCT574 SOP – NS Tape and reel SN74BCT574NSR BCT574 SSOP – DB Tape and reel SN74BCT574DBR BT574 CDIP – J Tube SNJ54BCT574J SNJ54BCT574J –55 °C to 125°C CFP – W Tube SNJ54BCT574W SNJ54BCT574W LCCC – FK Tube SNJ54BCT574FK SNJ54BCT574FK † 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 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. |
Аналогичный номер детали - SN74BCT574 |
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Аналогичное описание - SN74BCT574 |
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