Flip Flop ICs

A flip flop IC (integrated circuit) is a semiconductor device used in a flip flop circuit - a type of circuit that has two stable states. Flip flop circuits are mainly used in computers to store and transfer data.RS Components offer an extensive range of high-quality electronic components from leading brands including Nexperia, Texas Instruments, ON Semiconductor and Toshiba.

How do flip flop circuits work?

Flip flop circuits are non-linear circuits, which means that the output from one of its gates (devices which allow an electronic system to decide based on the number of its inputs) is fed 'back' to be processed with the input signal.

Flip flop circuits work on an input signal mixed with this previous output signal so that their own outputs are dependent upon their previous state. Flip flop circuits differ from latches in that they have a control signal (clock) input.

Types of Flip Flop ICs

There are four main types of devices with the following logic functions;

  • SR Flip-Flop - (Set-Reset)
  • D-type Flip-Flop - (Data)
  • T Flip-Flop - (Toggle)
  • JK Flip-Flop

All these devices are available in industry-standard packages, pin counts, pinouts and mounting types.

What are flip flop ICs used for?

A flip flops ICs can store information. By connecting several flip flop ICs together, you can store data that can represent the state of a sequencer, the value of a counter or an ASCII character in a computer's memory.The devices are used in a wide range of electronic applications and digital circuits. Some of the most common are

  • Frequency Dividers
  • Counters
  • Shift Registers
  • Storage Registers

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Description Price Logic Family Logic Function Input Type Output Type Output Signal Type Triggering Type Polarity Mounting Type Package Type Pin Count Set/Reset Number of Elements per Chip Maximum Propagation Delay Time @ Maximum CL Dimensions
RS Stock No. 527-671
Mfr. Part No.CD74HC73M
SGD0.746
Each (In a Pack of 25)
units
HC JK Type Single Ended - Differential Negative Edge Inverting, Non-Inverting Surface Mount SOIC 14 Reset 2 160 ns @ 2 V 8.65 x 3.91 x 1.58mm
RS Stock No. 178-5536
Mfr. Part No.CD74AC574M
SGD1.11
Each (In a Tube of 25)
units
AC D Type Single Ended 3 State Single Ended Positive Edge Non-Inverting Surface Mount SOIC 20 - 8 135 ns @ 1.5 V 12.8 x 7.52 x 2.35mm
RS Stock No. 663-1105
Mfr. Part No.SN74ACT74N
SGD0.825
Each (In a Pack of 10)
units
ACT D Type Single Ended - Differential Positive Edge Inverting, Non-Inverting Through Hole PDIP 14 Yes 2 11 ns @ 4.5 V → 5.5 V 19.3 x 6.35 x 4.57mm
RS Stock No. 662-7872
Mfr. Part No.SN74AHCT574PWR
SGD0.499
Each (In a Pack of 10)
units
AHCT D Type Single Ended 3 State Single Ended Positive Edge Non-Inverting Surface Mount TSSOP 20 - 8 10.6 ns @ 5 V 6.5 x 4.4 x 1.15mm
RS Stock No. 662-8231
Mfr. Part No.SN74HC74PWR
SGD0.451
Each (In a Pack of 10)
units
HC D Type Single Ended - Differential Positive Edge Inverting, Non-Inverting Surface Mount TSSOP 14 Yes 2 175 ns @ 2 V 5 x 4.4 x 1.15mm
RS Stock No. 528-062
Mfr. Part No.SN74LVC574APWR
SGD0.544
Each (In a Pack of 20)
units
LVC D Type Single Ended 3 State Single Ended Positive Edge Non-Inverting Surface Mount TSSOP 20 - 8 7.8 ns @ 2.7 V 6.5 x 4.4 x 1.15mm
RS Stock No. 162-7477
Mfr. Part No.SN74LVC1G79DCKT
SGD0.719
Each (On a Reel of 250)
units
LVC D Type Single Ended - Single Ended Positive Edge Non-Inverting Surface Mount SC-70 5 - 1 5 ns @ 3.3 V 2 x 1.25 x 0.9mm
RS Stock No. 121-8286
Mfr. Part No.SN74LS374N
SGD1.302
Each (In a Tube of 20)
units
LS D Type Single Ended 3 State Single Ended Positive Edge Non-Inverting Through Hole PDIP 20 - 8 28 ns @ 5 V 24.33 x 6.35 x 4.57mm
RS Stock No. 145-0160
Mfr. Part No.SN74AC574DW
SGD1.176
Each (In a Tube of 25)
units
AC D Type Single Ended 3 State Single Ended Positive Edge Non-Inverting Surface Mount SOIC 20 - 8 13.5 ns @ 3.3 V 12.8 x 7.52 x 2.35mm
RS Stock No. 539-9850
Mfr. Part No.TC74HC273AP(F)
BrandToshiba
SGD0.948
Each (In a Pack of 5)
units
HC D Type Single Ended - Single Ended Positive Edge Non-Inverting Through Hole PDIP 20 Master Reset 8 145 ns @ 2 V 25.1 x 6.4 x 3.5mm