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SN74HC74QPWRG4Q1 Scheda tecnica(PDF) 1 Page - Texas Instruments |
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SN74HC74QPWRG4Q1 Scheda tecnica(HTML) 1 Page - Texas Instruments |
1 / 14 page SN74HC74-Q1 DUAL D-TYPE POSITIVE-EDGE-TRIGGERED FLIP-FLOP WITH CLEAR AND PRESET SCLS577A − MARCH 2004 − REVISED APRIL 2008 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Qualified for Automotive Applications D Wide Operating Voltage Range of 2 V to 6 V D Outputs Can Drive Up To 10 LSTTL Loads D Low Power Consumption, 80-µA Max I CC D Typical t pd = 15 ns D ±4-mA Output Drive at 5 V D Low Input Current of 1 µA Max description/ordering information The SN74HC74 device contains two independent D-type positive-edge-triggered flip-flops. A low level at the preset (PRE) or clear (CLR) inputs 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 are transferred to the outputs on the positive-going edge of the clock (CLK) pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of CLK. Following the hold-time interval, data at the D input can be changed without affecting the levels at the outputs. ORDERING INFORMATION{ TA PACKAGE‡ ORDERABLE PART NUMBER TOP-SIDE MARKING 40 °C to 125°C SOIC − D Reel of 2500 SN74HC74QDRQ1 HC74Q −40 °C to 125°C TSSOP − PW Reel of 2000 SN74HC74QPWRQ1 HC74Q † For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at http://www.ti.com. ‡ Package drawings, thermal data, and symbolization are available at http://www.ti.com/packaging. FUNCTION TABLE INPUTS OUTPUTS PRE CLR CLK D Q Q L H X X H L H LX XL H L LX X H† H† H H ↑ HH L H H ↑ LL H H H L X Q0 Q0 † This configuration is nonstable; that is, it does not persist when PRE or CLR returns to its inactive (high) level. 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 D OR PW PACKAGE (TOP VIEW) Copyright 2008, 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. |
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