NOR GATE Logic Gates 2,400+

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Part	Manufacturer	Logic IC Type	Temperature Grade	Terminal Form	No. of Terminals	Package Code	Package Shape	Package Body Material	Schmitt Trigger	Surface Mount	No. of Functions	Technology	Screening Level	No. of Inputs	Packing Method	Nominal Supply Voltage / Vsup (V)	Power Supplies (V)	Load Capacitance (CL)	Package Style (Meter)	Package Equivalence Code	Propagation Delay (tpd)	Maximum I (ol)	Sub-Category	Terminal Pitch	Maximum Operating Temperature	Output Characteristics	Minimum Operating Temperature	Terminal Finish	Terminal Position	JESD-30 Code	Moisture Sensitivity Level (MSL)	Maximum Supply Voltage (Vsup)	Maximum Seated Height	Width	Qualification	Minimum Supply Voltage (Vsup)	Maximum Power Supply Current (ICC)	Additional Features	JESD-609 Code	Maximum Time At Peak Reflow Temperature (s)	Peak Reflow Temperature (C)	Length	Family
5423W	Texas Instruments	NOR GATE	MILITARY	FLAT	16	DFP	RECTANGULAR	CERAMIC, GLASS-SEALED		YES	2	TTL		4		5		15 pF	FLATPACK		15 ns			1.27 mm	125 Cel		-55 Cel		DUAL	R-GDFP-F16		5.5 V	2.03 mm	6.73 mm	Not Qualified	4.5 V	19 mA	STROBED OUTPUTS; WITH 2 EXPAND INPUTS				10.2 mm	TTL/H/L
54AC11027FK	Texas Instruments	NOR GATE	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	NO	YES	3	CMOS		3		5	3.3/5	50 pF	CHIP CARRIER	LCC20,.35SQ	8.9 ns	24 Amp	Gates	1.27 mm	125 Cel		-55 Cel		QUAD	S-CQCC-N20		5.5 V	2.03 mm	8.89 mm	Not Qualified	3 V		CENTER PIN VCC AND GND		NOT SPECIFIED	NOT SPECIFIED	8.89 mm	AC
SNC54ALS02J	Texas Instruments	NOR GATE	MILITARY	THROUGH-HOLE	14	DIP	RECTANGULAR	CERAMIC	NO	NO	4	TTL	MIL-STD-883 Class B (Modified)	2		5	5		IN-LINE	DIP14,.3	18 ns		Gates	2.54 mm	125 Cel		-55 Cel		DUAL	R-XDIP-T14		5.5 V			Not Qualified	4.5 V
5433J	Texas Instruments	NOR GATE	MILITARY	THROUGH-HOLE	14	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED		NO	4	TTL		2		5		50 pF	IN-LINE		18 ns			2.54 mm	125 Cel	OPEN-COLLECTOR	-55 Cel		DUAL	R-GDIP-T14		5.5 V	5.08 mm	7.62 mm	Not Qualified	4.5 V	57 mA	IOL = 48MA @ VOL = 0.4V; IOH = 0.25MA @ VOH = 5.5V				19.56 mm	TTL/H/L
SNC54S02J	Texas Instruments	NOR GATE	MILITARY	THROUGH-HOLE	14	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	NO	4	TTL	MIL-STD-883 Class B (Modified)	2		5	5		IN-LINE	DIP14,.3	5.5 ns		Gates	2.54 mm	125 Cel		-55 Cel		DUAL	R-GDIP-T14		5.5 V	5.08 mm	7.62 mm	Not Qualified	4.5 V				NOT SPECIFIED	NOT SPECIFIED	19.56 mm	S
SNC5427W	Texas Instruments	NOR GATE	MILITARY	FLAT	14	DFP	RECTANGULAR	CERAMIC	NO	YES	3	TTL	MIL-STD-883 Class B (Modified)	3		5	5		FLATPACK	FL14,.3	15 ns		Gates	1.27 mm	125 Cel		-55 Cel		DUAL	R-XDFP-F14		5.5 V			Not Qualified	4.5 V				NOT SPECIFIED	NOT SPECIFIED
M38510/33301BCX	Texas Instruments	NOR GATE	MILITARY	THROUGH-HOLE	14	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	NO	4	TTL		2		5		50 pF	IN-LINE		7.5 ns	20 Amp			125 Cel		-55 Cel		DUAL	R-GDIP-T14		5.5 V			Qualified	4.5 V	13 mA						F/FAST
CD54HCT02F3A	Texas Instruments	NOR GATE	MILITARY	THROUGH-HOLE	14	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	NO	4	CMOS	38535Q/M;38534H;883B	2	TUBE	5	5	50 pF	IN-LINE	DIP14,.3	32 ns	4 Amp	Gates	2.54 mm	125 Cel		-55 Cel	Tin/Lead (Sn/Pb)	DUAL	R-GDIP-T14		5.5 V	5.08 mm	7.62 mm	Not Qualified	4.5 V	.04 mA		e0	NOT SPECIFIED	NOT SPECIFIED	19.56 mm	HCT
M38510/00404BCA	Texas Instruments	NOR GATE	MILITARY	THROUGH-HOLE	14	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	NO	3	TTL	38535Q/M;38534H;883B	3		5	5		IN-LINE	DIP14,.3	15 ns	16 Amp	Gates	2.54 mm	125 Cel		-55 Cel		DUAL	R-GDIP-T14		5.5 V	5.08 mm	7.62 mm	Not Qualified	4.5 V	8.5 mA			NOT SPECIFIED	NOT SPECIFIED		TTL/H/L
SNC54HC36FH	Texas Instruments	NOR GATE	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC	NO	YES	4	CMOS	MIL-STD-883 Class B (Modified)	2					CHIP CARRIER	LCC20,.35SQ	150 ns		Gates	1.27 mm	125 Cel		-55 Cel		QUAD	S-XQCC-N20		6 V			Not Qualified	2 V
SNC54LS02W	Texas Instruments	NOR GATE	MILITARY	FLAT	14	DFP	RECTANGULAR	CERAMIC	NO	YES	4	TTL	MIL-STD-883 Class B (Modified)	2		5	5		FLATPACK	FL14,.3	15 ns		Gates	1.27 mm	125 Cel		-55 Cel		DUAL	R-XDFP-F14		5.5 V			Not Qualified	4.5 V
M38510/37302SDA	Texas Instruments	NOR GATE	MILITARY	FLAT	14	DFP	RECTANGULAR	UNSPECIFIED		YES	3	TTL	MIL-M-38510 Class S	3		5			FLATPACK		22 ns				125 Cel		-55 Cel		DUAL	R-XDFP-F14		5.5 V			Not Qualified	4.5 V							ALS
74F02SC	Texas Instruments	NOR GATE	COMMERCIAL			SOP					4	TTL		2		5					6.5 ns			1.27 mm	70 Cel		0 Cel					5.5 V	1.753 mm	3.9 mm		4.5 V						8.62 mm	F/FAST
74F02SJX	Texas Instruments	NOR GATE	COMMERCIAL			SOP					4	TTL		2		5					6.5 ns			1.27 mm	70 Cel		0 Cel					5.5 V	2.1 mm	5.3 mm		4.5 V						10.1 mm	F/FAST
SNC54AS805W	Texas Instruments	NOR GATE	MILITARY	FLAT	20	DFP	RECTANGULAR	CERAMIC	NO	YES	6	TTL	MIL-STD-883 Class B (Modified)	2		5	5		FLATPACK	FL20,.3	4.8 ns		Gates	1.27 mm	125 Cel		-55 Cel		DUAL	R-XDFP-F20		5.5 V			Not Qualified	4.5 V	76 mA
SNC54LS02J	Texas Instruments	NOR GATE	MILITARY	THROUGH-HOLE	14	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	NO	4	TTL	MIL-STD-883 Class B (Modified)	2		5	5		IN-LINE	DIP14,.3	15 ns		Gates	2.54 mm	125 Cel		-55 Cel		DUAL	R-GDIP-T14		5.5 V	5.08 mm	7.62 mm	Not Qualified	4.5 V				NOT SPECIFIED	NOT SPECIFIED	19.56 mm	LS
SNJ54ALS805FK	Texas Instruments	NOR GATE	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC	NO	YES		TTL	38535Q/M;38534H;883B						CHIP CARRIER	LCC20,.35SQ		12 Amp	Gates	1.27 mm	125 Cel		-55 Cel		QUAD	S-XQCC-N20					Not Qualified
SN54ALS02AJ	Texas Instruments	NOR GATE	MILITARY	THROUGH-HOLE	14	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	NO	4	TTL		2	TUBE	5	5	50 pF	IN-LINE	DIP14,.3	16 ns	.4 Amp	Gates	2.54 mm	125 Cel		-55 Cel	Tin/Lead (Sn/Pb)	DUAL	R-GDIP-T14		5.5 V	5.08 mm	7.62 mm	Not Qualified	4.5 V	4 mA	LG-MAX	e0	NOT SPECIFIED	NOT SPECIFIED	19.94 mm	ALS
SN54LS02W-10	Texas Instruments	NOR GATE	MILITARY	FLAT	14	DFP	RECTANGULAR	CERAMIC, GLASS-SEALED		YES	4	TTL		2		5		15 pF	FLATPACK		15 ns			1.27 mm	125 Cel		-55 Cel		DUAL	R-GDFP-F14		5.5 V	2.03 mm	6.29 mm	Not Qualified	4.5 V	5.4 mA					9.21 mm	LS
5962-8869401RX	Texas Instruments	NOR GATE	MILITARY	THROUGH-HOLE	20	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED		NO	6	TTL		2		5			IN-LINE		9 ns				125 Cel		-55 Cel		DUAL	R-GDIP-T20		5.5 V			Not Qualified	4.5 V							ALS
SN74ALS27DP3	Texas Instruments	NOR GATE	COMMERCIAL	GULL WING	14	SOP	RECTANGULAR	PLASTIC/EPOXY	NO	YES	3	TTL		3		5	5		SMALL OUTLINE	SOP14,.25	15 ns	8 Amp	Gates	1.27 mm	70 Cel		0 Cel		DUAL	R-PDSO-G14		5.5 V				4.5 V	4 mA
SN54L02T-05	Texas Instruments	NOR GATE	MILITARY	FLAT	14	DFP	RECTANGULAR	CERAMIC, GLASS-SEALED		YES	4	TTL		2		5		50 pF	FLATPACK		60 ns				125 Cel		-55 Cel		DUAL	R-GDFP-F14		5.5 V			Not Qualified	4.5 V	2.6 mA						TTL/H/L
SN74128JP4	Texas Instruments	NOR GATE	COMMERCIAL	THROUGH-HOLE	14	DIP	RECTANGULAR	CERAMIC	NO	NO		TTL				5	5		IN-LINE	DIP14,.3			Gates	2.54 mm	70 Cel		0 Cel		DUAL	R-XDIP-T14										NOT SPECIFIED	NOT SPECIFIED
5962-9861101QCX	Texas Instruments	NOR GATE	MILITARY	THROUGH-HOLE	14	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	NO	4	TTL	MIL-PRF-38535 Class Q	2		5		50 pF	IN-LINE		18 ns	48 Amp		2.54 mm	125 Cel		-55 Cel		DUAL	R-GDIP-T14		5.5 V	5.08 mm	7.62 mm	Qualified	4.5 V	57 mA			NOT SPECIFIED	NOT SPECIFIED	19.56 mm	TTL/H/L
SN74LS02FN	Texas Instruments	NOR GATE	COMMERCIAL	J BEND	20	QCCJ	SQUARE	PLASTIC/EPOXY	NO	YES	4	TTL		2		5	5	15 pF	CHIP CARRIER	LDCC20,.4SQ	15 ns		Gates	1.27 mm	70 Cel		0 Cel		QUAD	S-PQCC-J20		5.25 V	4.57 mm	8.9662 mm	Not Qualified	4.75 V	5.4 mA			NOT SPECIFIED	NOT SPECIFIED	8.9662 mm	LS
CD74HC27MG4	Texas Instruments	NOR GATE	MILITARY	GULL WING	14	SOP	RECTANGULAR	PLASTIC/EPOXY	NO	YES	3	CMOS		3	TUBE	4.5	2/6	50 pF	SMALL OUTLINE	SOP14,.25	145 ns	4 Amp	Gates	1.27 mm	125 Cel		-55 Cel	NICKEL PALLADIUM GOLD	DUAL	R-PDSO-G14	1	6 V	1.75 mm	3.9 mm	Not Qualified	2 V			e4	30	260	8.65 mm	HC/UH
SNJ54LS33W-00	Texas Instruments	NOR GATE	MILITARY	FLAT	14	DFP	RECTANGULAR	CERAMIC, GLASS-SEALED		YES	4	TTL		2		5		45 pF	FLATPACK		28 ns			1.27 mm	125 Cel	OPEN-COLLECTOR	-55 Cel		DUAL	R-GDFP-F14		5.5 V	2.03 mm	6.29 mm	Not Qualified	4.5 V	13.8 mA					9.21 mm	LS
JM38510/65102BCA	Texas Instruments	NOR GATE	MILITARY	THROUGH-HOLE	14	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	NO	3	CMOS	MIL-M-38510 Class B	3	TUBE	5		50 pF	IN-LINE		135 ns	4 Amp		2.54 mm	125 Cel		-55 Cel	TIN LEAD	DUAL	R-GDIP-T14		6 V	5.08 mm	6.67 mm	Not Qualified	2 V	.04 mA		e0			19.56 mm	HC
CD4025BMD	Texas Instruments	NOR GATE	MILITARY	THROUGH-HOLE	14	DIP	RECTANGULAR	PLASTIC/EPOXY		NO	3	CMOS		3		10			IN-LINE		250 ns				125 Cel		-55 Cel	TIN LEAD	DUAL	R-PDIP-T14		15 V				5 V			e0				4000/14000/40000
SN74LV27ADBR	Texas Instruments	NOR GATE	INDUSTRIAL	GULL WING	14	SSOP	RECTANGULAR	PLASTIC/EPOXY	NO	YES	3	CMOS		3	TR	2.5	3.3	50 pF	SMALL OUTLINE, SHRINK PITCH	SSOP14,.3	21 ns	12 Amp	Gates	.65 mm	85 Cel		-40 Cel	Nickel/Palladium/Gold (Ni/Pd/Au)	DUAL	R-PDSO-G14	1	5.5 V	2 mm	5.3 mm	Not Qualified	2 V	.02 mA		e4	NOT SPECIFIED	260	6.2 mm	LV/LV-A/LVX/H
SNJ54HCT02WR	Texas Instruments	NOR GATE	MILITARY	FLAT	14	DFP	RECTANGULAR	CERAMIC, GLASS-SEALED		YES	4	CMOS	MIL-PRF-38535	2		5		50 pF	FLATPACK		30 ns			1.27 mm	125 Cel		-55 Cel		DUAL	R-GDFP-F14		5.5 V	2.03 mm	6.285 mm	Not Qualified	4.5 V						9.21 mm	HCT
5962-01-039-8199	Texas Instruments	NOR GATE	MILITARY	THROUGH-HOLE	14	DIP	RECTANGULAR	CERAMIC	NO	NO		TTL				5	5	15 pF	IN-LINE	DIP14,.3		4 Amp	Gates	2.54 mm	125 Cel		-55 Cel		DUAL	R-XDIP-T14					Not Qualified		5.4 mA			NOT SPECIFIED	NOT SPECIFIED
SN74LS33DRG4	Texas Instruments	NOR GATE	COMMERCIAL	GULL WING	14	SOP	RECTANGULAR	PLASTIC/EPOXY	NO	YES	4	TTL		2	TR	5	5	45 pF	SMALL OUTLINE	SOP14,.25	28 ns		Gates	1.27 mm	70 Cel	OPEN-COLLECTOR	0 Cel	NICKEL PALLADIUM GOLD	DUAL	R-PDSO-G14	1	5.25 V	1.75 mm	3.9 mm	Not Qualified	4.75 V	13.8 mA		e4	30	260	8.65 mm	LS
SN74AS805ANP3	Texas Instruments	NOR GATE	COMMERCIAL	THROUGH-HOLE	20	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	NO	6	TTL		2		5	5		IN-LINE	DIP20,.3	4.3 ns		Gates	2.54 mm	70 Cel		0 Cel		DUAL	R-PDIP-T20		5.5 V				4.5 V	32 mA
SN74HC4002DR-00	Texas Instruments	NOR GATE	INDUSTRIAL	GULL WING	14	SOP	RECTANGULAR	PLASTIC/EPOXY		YES	2	CMOS		4		5		50 pF	SMALL OUTLINE		28 ns			1.27 mm	85 Cel		-40 Cel		DUAL	R-PDSO-G14		6 V	1.75 mm	3.9 mm	Not Qualified	2 V						8.65 mm	HC/UH
SN74LV27ADRG4	Texas Instruments	NOR GATE	INDUSTRIAL	GULL WING	14	SOP	RECTANGULAR	PLASTIC/EPOXY	NO	YES	3	CMOS		3	TR	2.5	3.3	50 pF	SMALL OUTLINE	SOP14,.25	21 ns	6 Amp	Gates	1.27 mm	85 Cel		-40 Cel	NICKEL PALLADIUM GOLD	DUAL	R-PDSO-G14	1	5.5 V	1.75 mm	3.9 mm	Not Qualified	2 V			e4	30	260	8.65 mm	LV/LV-A/LVX/H
SN54AS02J	Texas Instruments	NOR GATE	MILITARY	THROUGH-HOLE	14	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	NO	4	TTL		2	TUBE	5	5	50 pF	IN-LINE	DIP14,.3	6 ns	.4 Amp	Gates	2.54 mm	125 Cel		-55 Cel	Tin/Lead (Sn/Pb)	DUAL	R-GDIP-T14		5.5 V	5.08 mm	7.62 mm	Not Qualified	4.5 V	20.1 mA	LG-MAX	e0	NOT SPECIFIED	NOT SPECIFIED	19.94 mm	AS
SN74HC27ANSR	Texas Instruments	NOR GATE		GULL WING	14	SOP	RECTANGULAR	PLASTIC/EPOXY	NO	YES	3	CMOS		3	TR	5		50 pF	SMALL OUTLINE	SOP14,.3	115 ns	5.2 Amp		1.27 mm	85 Cel		-40 Cel	NICKEL PALLADIUM GOLD	DUAL	R-PDSO-G14	1	6 V	2 mm	5.3 mm		2 V	.02 mA		e4	30	260	10.2 mm	HC/UH
SNJ54HC7002J	Texas Instruments	NOR GATE	MILITARY	THROUGH-HOLE	14	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	YES	NO	4	CMOS	MIL-PRF-38535	2	TUBE	5	2/6	50 pF	IN-LINE	DIP14,.3	195 ns	4 Amp	Gates	2.54 mm	125 Cel		-55 Cel	TIN LEAD	DUAL	R-GDIP-T14		5.5 V	5.08 mm	7.62 mm	Not Qualified	4.5 V			e0			19.56 mm	HC/UH
SN74F260NSR	Texas Instruments	NOR GATE	COMMERCIAL	GULL WING	14	SOP	RECTANGULAR	PLASTIC/EPOXY	NO	YES	2	TTL		5	TR	5	5		SMALL OUTLINE	SOP14,.3	6.5 ns	20 Amp	Gates	1.27 mm	70 Cel		0 Cel		DUAL	R-PDSO-G14		5.5 V	2 mm	5.3 mm	Not Qualified	4.5 V	9.5 mA			NOT SPECIFIED	NOT SPECIFIED	10.2 mm	F/FAST
SN74LS27DG4	Texas Instruments	NOR GATE	COMMERCIAL	GULL WING	14	SOP	RECTANGULAR	PLASTIC/EPOXY	NO	YES	3	TTL		3	TUBE	5	5	15 pF	SMALL OUTLINE	SOP14,.25	15 ns	8 Amp	Gates	1.27 mm	70 Cel		0 Cel	NICKEL PALLADIUM GOLD	DUAL	R-PDSO-G14	1	5.25 V	1.75 mm	3.9 mm	Not Qualified	4.75 V	6.8 mA		e4	30	260	8.65 mm	LS
SN74S02J-00	Texas Instruments	NOR GATE	COMMERCIAL	THROUGH-HOLE	14	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED		NO	4	TTL		2		5		15 pF	IN-LINE		5.5 ns			2.54 mm	70 Cel		0 Cel		DUAL	R-GDIP-T14		5.25 V	5.08 mm	7.62 mm	Not Qualified	4.75 V	45 mA					19.56 mm	S
SN74LS27DRG4	Texas Instruments	NOR GATE	COMMERCIAL	GULL WING	14	SOP	RECTANGULAR	PLASTIC/EPOXY	NO	YES	3	TTL		3	TR	5	5	15 pF	SMALL OUTLINE	SOP14,.25	15 ns	8 Amp	Gates	1.27 mm	70 Cel		0 Cel	NICKEL PALLADIUM GOLD	DUAL	R-PDSO-G14	1	5.25 V	1.75 mm	3.9 mm	Not Qualified	4.75 V	6.8 mA		e4	30	260	8.65 mm	LS
SN54AS02FH-00	Texas Instruments	NOR GATE	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED		YES	4	TTL		2		5		50 pF	CHIP CARRIER		5 ns			1.27 mm	125 Cel		-55 Cel		QUAD	S-CQCC-N20		5.5 V	2.54 mm	8.89 mm	Not Qualified	4.5 V	20.1 mA					8.89 mm	AS
SN74L02N-00	Texas Instruments	NOR GATE	COMMERCIAL	THROUGH-HOLE	14	DIP	RECTANGULAR	PLASTIC/EPOXY		NO	4	TTL		2		5		50 pF	IN-LINE		60 ns			2.54 mm	70 Cel		0 Cel		DUAL	R-PDIP-T14		5.25 V	5.08 mm	7.62 mm	Not Qualified	4.75 V	2.6 mA					19.305 mm	TTL/H/L
SN74AUP2G02DQER	Texas Instruments	NOR GATE	INDUSTRIAL	NO LEAD	8	VSON	RECTANGULAR	PLASTIC/EPOXY	NO	YES	2	CMOS		2	TR	1.2	1.2/3.3	30 pF	SMALL OUTLINE, VERY THIN PROFILE	SOLCC8,.04,14	25.5 ns	4 Amp	Gates	.35 mm	85 Cel		-40 Cel	NICKEL PALLADIUM GOLD SILVER	DUAL	R-PDSO-N8	1	3.6 V	.4 mm	1 mm	Not Qualified	.8 V	.0009 mA		e4	30	260	1.4 mm	AUP/ULP/V
SN54HC27FH	Texas Instruments	NOR GATE	MILITARY	NO LEAD	20	QCCN	SQUARE	CERAMIC	NO	YES	3	CMOS		3		5	2/6		CHIP CARRIER	LCC20,.35SQ	135 ns		Gates	1.27 mm	125 Cel		-55 Cel		QUAD	S-XQCC-N20		6 V			Not Qualified	2 V				NOT SPECIFIED	NOT SPECIFIED
SN74F36N3	Texas Instruments	NOR GATE	COMMERCIAL	THROUGH-HOLE	14	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	NO		TTL							IN-LINE	DIP14,.3		20 Amp	Gates	2.54 mm	70 Cel		0 Cel		DUAL	R-PDIP-T14							13 mA

Logic Gates

Logic gates are electronic circuits that perform basic logical operations on one or more inputs to produce a single output. They are the building blocks of digital circuits and are used to implement digital logic functions, such as AND, OR, NOT, XOR, and NAND.

Logic gates are designed using various technologies, including transistor-transistor logic (TTL), complementary metal-oxide-semiconductor (CMOS), and field-programmable gate arrays (FPGAs). They can be classified into three main types based on their operation: combinational logic gates, sequential logic gates, and programmable logic gates.

Combinational logic gates are logic gates that produce an output based solely on the current input values. These gates include the AND gate, OR gate, NOT gate, XOR gate, and NAND gate. The output of a combinational logic gate depends on the input values and the logic function implemented by the gate.

Sequential logic gates are logic gates that have memory elements and can store information. These gates include the SR flip-flop, D flip-flop, JK flip-flop, and T flip-flop. The output of a sequential logic gate depends on the current input values and the previous state of the gate.

Programmable logic gates are logic gates that can be programmed to implement different logic functions. These gates include programmable logic arrays (PLAs), programmable array logic (PALs), and field-programmable gate arrays (FPGAs). Programmable logic gates can be reprogrammed to adapt to changing system requirements.

Logic gates are used in various applications, including digital signal processing, control systems, and memory systems. They are essential components of digital systems and can be found in many electronic devices, such as computers, mobile phones, and digital cameras.