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SN74AC74DRG4 데이터시트(PDF) 1 Page - Texas Instruments |
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SN74AC74DRG4 데이터시트(HTML) 1 Page - Texas Instruments |
1 / 17 page SN54AC74, SN74AC74 DUAL POSITIVEEDGETRIGGERED DTYPE FLIPFLOPS WITH CLEAR AND PRESET SCAS521F − AUGUST 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 10 ns at 5 V description/ordering information The ’AC74 devices are dual positive-edge- triggered D-type flip-flops. A low level at the preset (PRE) or clear (CLR) input sets or resets the outputs, regardless of the levels of the other inputs. When PRE and CLR are inactive (high), data at the data (D) input meeting the setup-time requirements is transferred to the outputs on the positive-going edge of the clock pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of the clock pulse. Following the hold-time interval, data at D can be changed without affecting the levels at the outputs. ORDERING INFORMATION TA PACKAGE† ORDERABLE PART NUMBER TOP-SIDE MARKING PDIP − N Tube SN74AC74N SN74AC74N SOIC − D Tube SN74AC74D AC74 SOIC − D Tape and reel SN74AC74DR AC74 −40 °C to 85°C SOP − NS Tape and reel SN74AC74NSR AC74 −40 C to 85 C SSOP − DB Tape and reel SN74AC74DBR AC74 TSSOP − PW Tube SN74AC74PW AC74 TSSOP − PW Tape and reel SN74AC74PWR AC74 CDIP − J Tube SNJ54AC74J SNJ54AC74J −55 °C to 125°C CFP − W Tube SNJ54AC74W SNJ54AC74W −55 C to 125 C LCCC − FK Tube SNJ54AC74FK SNJ54AC74FK † 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. 1 2 3 4 5 6 7 14 13 12 11 10 9 8 1CLR 1D 1CLK 1PRE 1Q 1Q GND VCC 2CLR 2D 2CLK 2PRE 2Q 2Q SN54AC74 . . . FK PACKAGE (TOP VIEW) SN54AC74 ...J OR W PACKAGE SN74AC74 . . . D, DB, 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 2D NC 2CLK NC 2PRE 1CLK NC 1PRE NC 1Q NC − No internal connection 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. |
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