Flip Flops

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Function	Type	Output Type	Number of Elements	Number of Bits per Element	Clock Frequency	Max Propagation Delay @ V, Max CL	Trigger Type	Current - Output High, Low	Voltage - Supply	Current - Quiescent (Iq)	Input Capacitance	Operating Temperature	Mounting Type	Supplier Device Package	Package / Case
SN74HC74N IC FF D-TYPE DUAL 1BIT 14DIP Texas Instruments	5,720 In Stock 35,444 Marketplace	1 : $0.88000 Tube 719 : $0.42000 Bulk	74HC	Bulk Tube	Active	Set(Preset) and Reset	D-Type	Complementary	2	1	60 MHz	30ns @ 6V, 50pF	Positive Edge	5.2mA, 5.2mA	2V ~ 6V	4 µA	3 pF	-40°C ~ 85°C (TA)	Through Hole	14-PDIP	14-DIP (0.300", 7.62mm)
SN74ACT74N IC FF D-TYPE DUAL 1BIT 14DIP Texas Instruments	1,223 In Stock 18,235 Marketplace	1 : $0.63000 Tube 1,044 : $0.29000 Bulk	74ACT	Bulk Tube	Active	Set(Preset) and Reset	D-Type	Complementary	2	1	210 MHz	11ns @ 5V, 50pF	Positive Edge	24mA, 24mA	4.5V ~ 5.5V	2 µA	3 pF	-40°C ~ 85°C (TA)	Through Hole	14-PDIP	14-DIP (0.300", 7.62mm)
SN74HC109N IC FF JK TYPE DUAL 1BIT 16DIP Texas Instruments	1,182 In Stock 3,829 Marketplace	1 : $0.78000 Tube 815 : $0.37000 Bulk	74HC	Bulk Tube	Active	Set(Preset) and Reset	JK Type	Complementary	2	1	60 MHz	30ns @ 6V, 50pF	Positive Edge	5.2mA, 5.2mA	2V ~ 6V	4 µA	3 pF	-40°C ~ 85°C (TA)	Through Hole	16-PDIP	16-DIP (0.300", 7.62mm)

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Flip-flops are elementary digital memory devices capable of storing a single logic state or "bit" of information. They have at least two inputs; one or more to communicate the data to be stored and another to indicate the point in time to store it. Different flip-flop types such as D (delay), SR (Set-Reset), and JK respond differently to the signals presented to their inputs and can be used to implement different logical functions. They differ from latches in that they are edge sensitive devices, whose retained logic state changes only at the moment a valid clock signal is received.