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SN74AC574PW Folha de dados(PDF) 1 Page - Texas Instruments |
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SN74AC574PW Folha de dados(HTML) 1 Page - Texas Instruments |
1 / 16 page 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 SN54AC574 ...J OR W PACKAGE SN74AC574 . . . DB, DW, N, NS, OR PW PACKAGE (TOP VIEW) 3 2 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 SN54AC574 . . . FK PACKAGE (TOP VIEW) SN54AC574, SN74AC574 OCTAL DTYPE EDGETRIGGERED FLIPFLOPS WITH 3STATE OUTPUTS SCAS541E − OCTOBER 1995 − REVISED OCTOBER 2003 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D 2-V to 6-V VCC Operation D Inputs Accept Voltages to 6 V D Max tpd of 8.5 ns at 5 V D 3-State Outputs Drive Bus Lines Directly description/ordering information These 8-bit flip-flops feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. The devices are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. The eight flip-flops of the ′AC574 devices are D-type edge-triggered flip-flops. On the positive transition of the clock (CLK) input, the Q outputs are set to the logic levels 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 the increased drive provide the capability to drive bus lines in a bus-organized system without need for interface or pullup components. OE does not affect internal operations of the flip-flop. Old data can be retained or new data can be entered while the outputs are in the high-impedance state. ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP − N Tube SN74AC574N SN74AC574N SOIC − DW Tube SN74AC574DW AC574 SOIC − DW Tape and reel SN74AC574DWR AC574 −40 °C to 85°C SOP − NS Tape and reel SN74AC574NSR AC574 −40 C to 85 C SSOP − DB Tape and reel SN74AC574DBR AC574 TSSOP − PW Tube SN74AC574PW AC574 TSSOP − PW Tape and reel SN74AC574PWR AC574 CDIP − J Tube SNJ54AC574J SNJ54AC574J −55 °C to 125°C CFP − W Tube SNJ54AC574W SNJ54AC574W −55 C to 125 C LCCC − FK Tube SNJ54AC574FK SNJ54AC574FK † 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 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 MILPRF38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters. |
Nº de peça semelhante - SN74AC574PW |
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Descrição semelhante - SN74AC574PW |
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