SQUARE Logic Gates 2,400+

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Part RoHS Manufacturer Logic IC Type Temperature Grade Terminal Form No. of Terminals Package Code Package Shape Total Dose (V) Package Body Material Schmitt Trigger Surface Mount No. of Functions Technology Screening Level No. of Inputs No. of Bits Translation 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 Control Type Minimum fmax JESD-30 Code Moisture Sensitivity Level (MSL) Maximum Supply Voltage (Vsup) Maximum Seated Height Width Qualification Output Polarity 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

SNC54AS08FH

Texas Instruments

AND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

4

TTL

MIL-STD-883 Class B (Modified)

2

5

5

CHIP CARRIER

LCC20,.35SQ

6.5 ns

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-XQCC-N20

5.5 V

Not Qualified

4.5 V

SNC54HC132FH

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

YES

YES

4

CMOS

MIL-STD-883 Class B (Modified)

2

5

2/6

CHIP CARRIER

LCC20,.35SQ

186 ns

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-XQCC-N20

5.5 V

Not Qualified

4.5 V

NOT SPECIFIED

NOT SPECIFIED

SNC54AS1000AFH

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

4

TTL

MIL-STD-883 Class B (Modified)

2

5

5

CHIP CARRIER

LCC20,.35SQ

5 ns

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-XQCC-N20

5.5 V

Not Qualified

4.5 V

54ACT11008FK

Texas Instruments

AND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

4

CMOS

2

5

5

50 pF

CHIP CARRIER

LCC20,.35SQ

8.6 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

4.5 V

CENTER PIN VCC AND GND

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

ACT

SNC54ALS27FH

Texas Instruments

NOR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

3

TTL

MIL-STD-883 Class B (Modified)

3

5

5

CHIP CARRIER

LCC20,.35SQ

26 ns

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-XQCC-N20

5.5 V

Not Qualified

4.5 V

SNC54HC133FK

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

1

CMOS

MIL-STD-883 Class B (Modified)

13

5

2/6

CHIP CARRIER

LCC20,.35SQ

225 ns

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-XQCC-N20

6 V

Not Qualified

2 V

SNC54HC02FH

Texas Instruments

NOR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

4

CMOS

MIL-STD-883 Class B (Modified)

2

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

74LS14FN

Texas Instruments

INVERTER

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

6

TTL

1

5

15 pF

CHIP CARRIER

22 ns

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

21 mA

8.9662 mm

LS

M38510/30301B2X

Texas Instruments

NOR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

4

TTL

2

5

50 pF

CHIP CARRIER

30 ns

4 Amp

125 Cel

-55 Cel

QUAD

S-CQCC-N20

5.5 V

Qualified

4.5 V

5.4 mA

LS

M38510/38411B2X

Texas Instruments

BUFFER

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

6

TTL

1

5

CHIP CARRIER

10 ns

125 Cel

-55 Cel

QUAD

S-CQCC-N20

5.5 V

Not Qualified

4.5 V

ALS

84143012X

Texas Instruments

AND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

2

TTL

MIL-PRF-38535

4

5

CHIP CARRIER

18 ns

1.27 mm

125 Cel

-55 Cel

QUAD

S-CQCC-N20

5.5 V

2.03 mm

8.89 mm

Qualified

4.5 V

NOT APPLICABLE

NOT APPLICABLE

8.89 mm

ALS

74S15FN

Texas Instruments

AND GATE

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

3

TTL

3

5

15 pF

CHIP CARRIER

9 ns

1.27 mm

70 Cel

OPEN-COLLECTOR

0 Cel

QUAD

S-PQCC-J20

5.25 V

4.57 mm

8.9662 mm

Not Qualified

4.75 V

42 mA

8.9662 mm

S

SNC54AS800FH

Texas Instruments

AND/NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

TTL

MIL-STD-883 Class B (Modified)

CHIP CARRIER

LCC20,.35SQ

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-XQCC-N20

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

SNC54HC30FH

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

1

CMOS

MIL-STD-883 Class B (Modified)

8

5

2/6

CHIP CARRIER

LCC20,.35SQ

195 ns

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-XQCC-N20

6 V

Not Qualified

2 V

M38510/65701B2X

Texas Instruments

INVERTER

MILITARY

NO LEAD

20

QCCN

SQUARE

UNSPECIFIED

YES

6

CMOS

1

5

CHIP CARRIER

22 ns

125 Cel

-55 Cel

QUAD

S-XQCC-N20

6 V

Qualified

2 V

HC/UH

SNC54ALS34FH

Texas Instruments

BUFFER

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

6

TTL

MIL-STD-883 Class B (Modified)

1

5

CHIP CARRIER

LCC20,.35SQ

18 ns

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-XQCC-N20

5.5 V

Not Qualified

4.5 V

54ACT11000FK

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

4

CMOS

2

5

5

50 pF

CHIP CARRIER

LCC20,.35SQ

9.5 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

4.5 V

CENTER PIN VCC AND GND

8.89 mm

ACT

54LS10LMQB

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

3

TTL

3

5

50 pF

CHIP CARRIER

15 ns

4000 Amp

125 Cel

-55 Cel

QUAD

S-CQCC-N20

5.5 V

Not Qualified

4.5 V

3.3 mA

LS

M38510/65104B2A

Texas Instruments

NOR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

UNSPECIFIED

YES

2

CMOS

MIL-M-38510 Class B

4

4.5

CHIP CARRIER

28 ns

125 Cel

-55 Cel

QUAD

S-XQCC-N20

6 V

Not Qualified

2 V

HC/UH

54LS32FK

Texas Instruments

OR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

4

TTL

2

5

15 pF

CHIP CARRIER

22 ns

1.27 mm

125 Cel

-55 Cel

QUAD

S-CQCC-N20

5.5 V

2.03 mm

8.89 mm

Not Qualified

4.5 V

9.8 mA

8.89 mm

LS

M38510/37004B2A

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

1

TTL

MIL-M-38510 Class B

8

TUBE

5

5

50 pF

CHIP CARRIER

LCC20,.35SQ

22 ns

20 Amp

Gate

1.27 mm

125 Cel

-55 Cel

TIN LEAD

QUAD

S-CQCC-N20

5.5 V

2.03 mm

8.89 mm

Qualified

4.5 V

.9 mA

e0

8.89 mm

ALS

SNC54HC04FH

Texas Instruments

INVERTER

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

6

CMOS

MIL-STD-883 Class B (Modified)

1

5

2/6

CHIP CARRIER

LCC20,.35SQ

145 ns

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-XQCC-N20

6 V

Not Qualified

2 V

SNC54HC10FK

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

3

CMOS

MIL-STD-883 Class B (Modified)

3

5

2/6

CHIP CARRIER

LCC20,.35SQ

145 ns

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-XQCC-N20

6 V

Not Qualified

2 V

NOT SPECIFIED

NOT SPECIFIED

SNC54AS00FH

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

4

TTL

MIL-STD-883 Class B (Modified)

2

5

5

CHIP CARRIER

LCC20,.35SQ

5 ns

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-XQCC-N20

5.5 V

Not Qualified

4.5 V

54LS27FK

Texas Instruments

NOR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

3

TTL

3

5

15 pF

CHIP CARRIER

15 ns

1.27 mm

125 Cel

-55 Cel

QUAD

S-CQCC-N20

5.5 V

2.03 mm

8.89 mm

Not Qualified

4.5 V

6.8 mA

8.89 mm

LS

SNC54ALS22AFH

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

2

TTL

MIL-STD-883 Class B (Modified)

4

5

5

CHIP CARRIER

LCC20,.35SQ

65 ns

Gates

1.27 mm

125 Cel

OPEN-COLLECTOR

-55 Cel

QUAD

S-XQCC-N20

5.5 V

Not Qualified

4.5 V

SNC54HC86FK

Texas Instruments

XOR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

4

CMOS

MIL-STD-883 Class B (Modified)

2

5

2/6

CHIP CARRIER

LCC20,.35SQ

150 ns

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-XQCC-N20

6 V

Not Qualified

2 V

NOT SPECIFIED

NOT SPECIFIED

54ACT11032FK

Texas Instruments

OR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

4

CMOS

2

5

5

50 pF

CHIP CARRIER

LCC20,.35SQ

8.4 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

4.5 V

CENTER PIN VCC AND GND

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

ACT

54ACT11011FK

Texas Instruments

AND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

3

CMOS

3

5

5

50 pF

CHIP CARRIER

LCC20,.35SQ

9.2 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

4.5 V

CENTER PIN VCC AND GND

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

ACT

74LS33FN

Texas Instruments

NOR GATE

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

4

TTL

2

5

45 pF

CHIP CARRIER

28 ns

1.27 mm

70 Cel

OPEN-COLLECTOR

0 Cel

QUAD

S-PQCC-J20

5.25 V

4.57 mm

8.9662 mm

Not Qualified

4.75 V

13.8 mA

IOL = 24MA @ VOL = 0.5V; IOH = 0.25MA @ VOH = 5.5V

8.9662 mm

LS

54LS37FK

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

4

TTL

2

5

45 pF

CHIP CARRIER

24 ns

1.27 mm

125 Cel

-55 Cel

QUAD

S-CQCC-N20

5.5 V

2.03 mm

8.89 mm

Not Qualified

4.5 V

12 mA

IOL = 12MA @ VOL = 0.4V; IOH = 1.2MA @ VOH = 2.5V

8.89 mm

LS

54AC11004FK

Texas Instruments

INVERTER

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

6

CMOS

1

5

3.3/5

50 pF

CHIP CARRIER

LCC20,.35SQ

6.4 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

SNC54ALS09FH

Texas Instruments

AND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

4

TTL

MIL-STD-883 Class B (Modified)

2

5

5

CHIP CARRIER

LCC20,.35SQ

69 ns

Gates

1.27 mm

125 Cel

OPEN-COLLECTOR

-55 Cel

QUAD

S-XQCC-N20

5.5 V

Not Qualified

4.5 V

NOT SPECIFIED

NOT SPECIFIED

86010012X

Texas Instruments

INVERTER

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

6

CMOS

MIL-PRF-38535

1

4.5

CHIP CARRIER

120 ns

1.27 mm

125 Cel

-55 Cel

QUAD

S-CQCC-N20

6 V

2.03 mm

8.89 mm

Qualified

2 V

NOT APPLICABLE

NOT APPLICABLE

8.89 mm

HC/UH

M38510/30004B2X

Texas Instruments

INVERTER

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

6

TTL

1

5

50 pF

CHIP CARRIER

55 ns

4 Amp

125 Cel

OPEN-COLLECTOR

-55 Cel

QUAD

S-CQCC-N20

5.5 V

Not Qualified

4.5 V

6.6 mA

LS

74S20FN

Texas Instruments

NAND GATE

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

2

TTL

4

5

15 pF

CHIP CARRIER

5 ns

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

18 mA

8.9662 mm

S

SNC54AS34FH

Texas Instruments

BUFFER

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

6

TTL

MIL-STD-883 Class B (Modified)

1

5

5

CHIP CARRIER

LCC20,.35SQ

6.5 ns

20 Amp

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-XQCC-N20

5.5 V

Not Qualified

4.5 V

34.6 mA

74LS19FN

Texas Instruments

INVERTER

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

6

TTL

1

5

15 pF

CHIP CARRIER

30 ns

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

30 mA

8.9662 mm

LS

M38510/38401B2A

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

4

TTL

MIL-PRF-38535 Class B

2

5

5

CHIP CARRIER

LCC20,.35SQ

10 ns

12 Amp

Gate

1.27 mm

125 Cel

-55 Cel

QUAD

S-CQCC-N20

5.5 V

Qualified

4.5 V

7.8 mA

ALS

54F14LMQB

Texas Instruments

INVERTER

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

6

TTL

MIL-STD-883

1

5

CHIP CARRIER

13 ns

1.27 mm

125 Cel

3-STATE

-55 Cel

QUAD

S-CQCC-N20

5.5 V

1.91 mm

8.89 mm

4.5 V

4000V ESD PROTECTION

8.89 mm

F/FAST

M38510/37301B2A

Texas Instruments

NOR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

4

TTL

MIL-M-38510 Class B

2

TUBE

5

5

50 pF

CHIP CARRIER

LCC20,.35SQ

16 ns

.4 Amp

Gate

1.27 mm

125 Cel

-55 Cel

TIN LEAD

QUAD

S-CQCC-N20

5.5 V

2.03 mm

8.89 mm

Qualified

4.5 V

4 mA

e0

8.89 mm

ALS

M38510/30502B2A

Texas Instruments

XOR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

4

TTL

MIL-M-38510 Class B

2

TUBE

5

5

50 pF

CHIP CARRIER

LCC20,.35SQ

30 ns

.8 Amp

Gate

1.27 mm

125 Cel

-55 Cel

Tin/Lead (Sn/Pb)

QUAD

S-CQCC-N20

5.5 V

2.03 mm

8.89 mm

Qualified

4.5 V

10 mA

e0

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

LS

M38510/31001B2A

Texas Instruments

AND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

3

TTL

MIL-M-38510 Class B

3

5

5

CHIP CARRIER

LCC20,.35SQ

20 ns

4 Amp

Gate

1.27 mm

125 Cel

-55 Cel

TIN LEAD

QUAD

S-CQCC-N20

5.5 V

2.03 mm

8.89 mm

Not Qualified

4.5 V

6.6 mA

e0

8.89 mm

LS

M38510/33001B2A

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

4

TTL

MIL-PRF-38535 Class B

2

TUBE

5

5

50 pF

CHIP CARRIER

LCC20,.35SQ

7 ns

1 Amp

Gate

1.27 mm

125 Cel

-55 Cel

TIN LEAD

QUAD

S-CQCC-N20

5.5 V

2.03 mm

8.89 mm

Qualified

4.5 V

10.2 mA

e0

8.89 mm

F/FAST

M38510/37001B2A

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

4

TTL

MIL-M-38510 Class B

2

TUBE

5

5

50 pF

CHIP CARRIER

LCC20,.35SQ

14 ns

.4 Amp

Gate

1.27 mm

125 Cel

-55 Cel

TIN LEAD

QUAD

S-CQCC-N20

5.5 V

2.03 mm

8.89 mm

Qualified

4.5 V

3 mA

e0

8.89 mm

ALS

M38510/65001B2X

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

4

CMOS

2

5

50 pF

CHIP CARRIER

135 ns

4 Amp

1.27 mm

125 Cel

-55 Cel

QUAD

S-CQCC-N20

6 V

2.03 mm

8.89 mm

Qualified

2 V

.01 mA

NOT APPLICABLE

NOT APPLICABLE

8.89 mm

HC/UH

84039012X

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

2

CMOS

MIL-PRF-38535

4

5

CHIP CARRIER

165 ns

1.27 mm

125 Cel

-55 Cel

QUAD

S-CQCC-N20

6 V

2.03 mm

8.89 mm

Qualified

2 V

NOT APPLICABLE

NOT APPLICABLE

8.89 mm

HC/UH

54AC11802FK

Texas Instruments

OR/NOR GATE

MILITARY

NO LEAD

28

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

3

CMOS

4

5

3.3/5

CHIP CARRIER

LCC28,.45SQ

24 Amp

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-CQCC-N28

5.5 V

2.03 mm

11.43 mm

Not Qualified

3 V

NOT SPECIFIED

NOT SPECIFIED

11.43 mm

AC

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.