Logic - Flip Flops

Category Introduction

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.

Product List

6023 Items

PDF	Mfr Part #	Quantity Available	UnitPrice	RFQ	Series	Packaging	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
	CD74HC109E IC FF JK TYPE DUAL 1BIT 16DIP Texas Instruments	1,267	$0.78		74HC	Tube	Active	Set(Preset) and Reset	JK Type	Complementary	2	1	60 MHz	31ns @ 6V, 50pF	Positive Edge	5.2mA, 5.2mA	2V ~ 6V	4 µA	10 pF	-55°C ~ 125°C (TA)	Through Hole	16-PDIP	16-DIP (0.300", 7.62mm)
	MC74HCT374ADWG IC FF D-TYPE SNGL 8BIT 20SOIC onsemi	328	$0.80		74HCT	Tube	Active	Standard	D-Type	Tri-State, Non-Inverted	1	8	30 MHz	31ns @ 5V, 50pF	Positive Edge	6mA, 6mA	4.5V ~ 5.5V	4 µA	10 pF	-55°C ~ 125°C (TA)	Surface Mount	20-SOIC	20-SOIC (0.295", 7.50mm Width)
	MC74HCT273ADWG IC FF D-TYPE SNGL 8BIT 20SOIC onsemi	175	$0.82		74HCT	Tube	Active	Reset	D-Type	Non-Inverted	1	8	30 MHz	25ns @ 5V, 50pF	Positive Edge	4mA, 4mA	4.5V ~ 5.5V	4 µA	-	-55°C ~ 125°C (TA)	Surface Mount	20-SOIC	20-SOIC (0.295", 7.50mm Width)
	74LCX16374MTDX IC FF D-TYPE DUAL 8BIT 48TSSOP onsemi	236	$1.72		74LCX	Tape & Reel (TR)	Active	Standard	D-Type	Tri-State, Non-Inverted	2	8	170 MHz	6.2ns @ 3.3V, 50pF	Positive Edge	24mA, 24mA	2V ~ 3.6V	20 µA	7 pF	-40°C ~ 85°C (TA)	Surface Mount	48-TSSOP	48-TFSOP (0.240", 6.10mm Width)
	SN74HCT273PWT IC FF D-TYPE SNGL 8BIT 20TSSOP Texas Instruments	396	$1.30		74HCT	Tape & Reel (TR)	Active	Master Reset	D-Type	Non-Inverted	1	8	37 MHz	29ns @ 5.5V, 50pF	Positive Edge	4mA, 4mA	4.5V ~ 5.5V	8 µA	3 pF	-40°C ~ 85°C (TA)	Surface Mount	20-TSSOP	20-TSSOP (0.173", 4.40mm Width)
	SN74HC109D IC FF JK TYPE DUAL 1BIT 16SOIC Texas Instruments	214	$1.15		74HC	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)	Surface Mount	16-SOIC	16-SOIC (0.154", 3.90mm Width)
	SN74AHCT74D IC FF D-TYPE DUAL 1BIT 14SOIC Texas Instruments	837	$1.16		74AHCT	Tube	Active	Set(Preset) and Reset	D-Type	Complementary	2	1	140 MHz	8.8ns @ 5V, 50pF	Positive Edge	8mA, 8mA	4.5V ~ 5.5V	2 µA	2 pF	-40°C ~ 125°C (TA)	Surface Mount	14-SOIC	14-SOIC (0.154", 3.90mm Width)
	SN74HCT74PW IC FF D-TYPE DUAL 1BIT 14TSSOP Texas Instruments	172	$1.15		74HCT	Tube	Active	Set(Preset) and Reset	D-Type	Complementary	2	1	46 MHz	25ns @ 5.5V, 50pF	Positive Edge	4mA, 4mA	4.5V ~ 5.5V	4 µA	3 pF	-40°C ~ 85°C (TA)	Surface Mount	14-TSSOP	14-TSSOP (0.173", 4.40mm Width)
	SN74AHCT74PW IC FF D-TYPE DUAL 1BIT 14TSSOP Texas Instruments	38	$1.13		74AHCT	Tube	Active	Set(Preset) and Reset	D-Type	Complementary	2	1	140 MHz	11.4ns @ 5V, 50pF	Positive Edge	8mA, 8mA	4.5V ~ 5.5V	2 µA	2 pF	-40°C ~ 125°C (TA)	Surface Mount	14-TSSOP	14-TSSOP (0.173", 4.40mm Width)
	SN74LV74AD IC FF D-TYPE DUAL 1BIT 14SOIC Texas Instruments	21	$1.16		74LV	Tube	Active	Set(Preset) and Reset	D-Type	Complementary	2	1	140 MHz	9.3ns @ 5V, 50pF	Positive Edge	12mA, 12mA	2V ~ 5.5V	20 µA	2 pF	-40°C ~ 125°C (TA)	Surface Mount	14-SOIC	14-SOIC (0.154", 3.90mm Width)
	SN74F175D IC FF D-TYPE SNGL 4BIT 16SOIC Texas Instruments	43	$1.28		74F	Tube	Active	Master Reset	D-Type	Complementary	1	4	140 MHz	8.5ns @ 5V, 50pF	Positive Edge	1mA, 20mA	4.5V ~ 5.5V	34 mA	-	0°C ~ 70°C (TA)	Surface Mount	16-SOIC	16-SOIC (0.154", 3.90mm Width)
	SN74AHCT574PW IC FF D-TYPE SNGL 8BIT 20TSSOP Texas Instruments	609	$1.31		74AHCT	Tube	Active	Standard	D-Type	Tri-State, Non-Inverted	1	8	115 MHz	10.6ns @ 5V, 50pF	Positive Edge	8mA, 8mA	4.5V ~ 5.5V	4 µA	3 pF	-40°C ~ 85°C (TA)	Surface Mount	20-TSSOP	20-TSSOP (0.173", 4.40mm Width)
	SN74HCT374PW IC FF D-TYPE SNGL 8BIT 20TSSOP Texas Instruments	574	$1.31		74HCT	Tube	Active	Standard	D-Type	Tri-State, Non-Inverted	1	8	40 MHz	32ns @ 5.5V, 50pF	Positive Edge	6mA, 6mA	4.5V ~ 5.5V	8 µA	3 pF	-40°C ~ 85°C (TA)	Surface Mount	20-TSSOP	20-TSSOP (0.173", 4.40mm Width)
	SN74AHCT574DW IC FF D-TYPE SNGL 8BIT 20SOIC Texas Instruments	181	$1.36		74AHCT	Tube	Active	Standard	D-Type	Tri-State, Non-Inverted	1	8	115 MHz	10.6ns @ 5V, 50pF	Positive Edge	8mA, 8mA	4.5V ~ 5.5V	4 µA	3 pF	-40°C ~ 85°C (TA)	Surface Mount	20-SOIC	20-SOIC (0.295", 7.50mm Width)
	SN74LVC374ADW IC FF D-TYPE SNGL 8BIT 20SOIC Texas Instruments	538	$1.55		74LVC	Tube	Active	Standard	D-Type	Tri-State, Non-Inverted	1	8	100 MHz	7ns @ 3.3V, 50pF	Positive Edge	24mA, 24mA	1.65V ~ 3.6V	10 µA	4 pF	-40°C ~ 85°C (TA)	Surface Mount	20-SOIC	20-SOIC (0.295", 7.50mm Width)
	CY74FCT821CTSOC IC FF D-TYPE SNGL 10BIT 20SOIC Texas Instruments	514	$1.69		74FCT	Tube	Active	Standard	D-Type	Tri-State, Non-Inverted	1	10	-	12.5ns @ 5V, 300pF	Positive Edge	32mA, 64mA	4.75V ~ 5.25V	200 µA	5 pF	-40°C ~ 85°C (TA)	Surface Mount	24-SOIC	24-SOIC (0.295", 7.50mm Width)
	SN74LVC821APW IC FF D-TYPE SNGL 10BIT 24TSSOP Texas Instruments	492	$1.72		74LVC	Tube	Active	Standard	D-Type	Tri-State, Non-Inverted	1	10	150 MHz	7.3ns @ 3.3V, 50pF	Positive Edge	24mA, 24mA	1.65V ~ 3.6V	10 µA	5 pF	-40°C ~ 85°C (TA)	Surface Mount	24-TSSOP	24-TSSOP (0.173", 4.40mm Width)
	SN74ALS534ADWR IC FF D-TYPE SNGL 8BIT 20SOIC Texas Instruments	52	$4.40		74ALS	Tape & Reel (TR)	Active	Standard	D-Type	Tri-State, Inverted	1	8	35 MHz	16ns @ 5V, 50pF	Positive Edge	2.6mA, 24mA	4.5V ~ 5.5V	19 mA	-	0°C ~ 70°C (TA)	Surface Mount	20-SOIC	20-SOIC (0.295", 7.50mm Width)
	SN74S175N IC FF D-TYPE SNGL 4BIT 16DIP Texas Instruments	254	$2.96		74S	Tube	Active	Master Reset	D-Type	Complementary	1	4	110 MHz	12ns @ 5V, 15pF	Positive Edge	1mA, 20mA	4.75V ~ 5.25V	96 mA	-	0°C ~ 70°C (TA)	Through Hole	16-PDIP	16-DIP (0.300", 7.62mm)
	SN74S374N IC FF D-TYPE SNGL 8BIT 20DIP Texas Instruments	73	$4.18		74S	Tube	Active	Standard	D-Type	Tri-State, Non-Inverted	1	8	100 MHz	17ns @ 5V, 15pF	Positive Edge	6.5mA, -	4.75V ~ 5.25V	110 mA	-	0°C ~ 70°C (TA)	Through Hole	20-PDIP	20-DIP (0.300", 7.62mm)