The 74HC74 and 74HCT74 are dual positive edge triggered D-type flip-flop. They have individual data (nD), clock (nCP), set (nSD) and reset (nRD) inputs, and complementary nQ and nQ outputs. Data at the nD-input, that meets the set-up and hold time requirements on the LOW-to-HIGH clock transition, is stored in the flip-flop and appears at the nQ output. Schmitt-trigger action in the clock input, makes the circuit highly tolerant to slower clock rise and fall times. Inputs include clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of VCC.
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Dual D-type flip-flop with set and reset; positive edge-trigger (REV 5.0) PDF (206.0 kB) 74HC_HCT74 [English] | 03 Dec 2015 |
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Live Insertion Aspects of Philips Logic Families (REV 1.0) PDF (73.0 kB) AN252 [English] | 13 Mar 2013 |
Pin FMEA 74HC/74HCT family (REV 1.0) PDF (51.0 kB) AN11044 [English] | 16 Mar 2011 |
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HC/T User Guide (REV 1.0) PDF (508.0 kB) HCT_USER_GUIDE [English] | 01 Nov 1997 |
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plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads; 14 terminals; body 2.5 x 3 x... (REV 1.0) PDF (187.0 kB) SOT762-1 [English] | 08 Feb 2016 |
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Standard product orientation 12NC ending 115 (REV 3.0) PDF (108.0 kB) SOT762-1_115 [English] | 09 Apr 2013 |
Product | Status | Family | VCC (V) | Function | Logic switching levels | Description | Output drive capability (mA) | Package version | tpd (ns) | fmax (MHz) | Power dissipation considerations | Tamb (Cel) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name | No of pins |
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74HC74BQ | Active | HC(T) | 2.0 - 6.0 | D-type flip-flops | CMOS | positive-edge trigger | +/- 5.2 | SOT762-1 | 14 | 82 | low | -40~125 | 106 | 20.9 | 74 | DHVQFN14 | 14 |
Product ID | Package Description | Outline Version | Reflow/Wave Soldering | Packing | Product Status | Part NumberOrdering code(12NC) | Marking | Chemical Content | RoHS / Pb Free / RHF | LeadFree Conversion Date | EFR | IFR(FIT) | MTBF(hour) | MSL | MSL LF |
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74HC74BQ | SOT762-1 | Reel 7" Q1/T1 | Active | 74HC74BQ,115 (9352 736 72115) | HC74 | 74HC74BQ | Always Pb-free | 84.9 | 6.62 | 1.51E8 | 1 | 1 |