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

SN74S132FN3

Texas Instruments

NAND GATE

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

YES

4

TTL

2

5

5

CHIP CARRIER

LDCC20,.4SQ

10.5 ns

Gates

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

5.5 V

4.5 V

NOT SPECIFIED

NOT SPECIFIED

SN54ALS1004FH-00

Texas Instruments

INVERTER

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

6

TTL

1

5

50 pF

CHIP CARRIER

8 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

12 mA

8.89 mm

ALS

SN74ALS811FN3

Texas Instruments

XNOR GATE

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

NO

YES

TTL

CHIP CARRIER

LDCC20,.4SQ

Gates

1.27 mm

70 Cel

OPEN-COLLECTOR

0 Cel

QUAD

S-PQCC-J20

SN54S51FK

Texas Instruments

AND-OR-INVERT GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

2

TTL

4

5

5

15 pF

CHIP CARRIER

LCC20,.35SQ

5.5 ns

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

22 mA

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

S

SN54ALS832FH-00

Texas Instruments

OR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

6

TTL

2

5

50 pF

CHIP CARRIER

10 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

16 mA

8.89 mm

ALS

SN74ALS05AFN-00

Texas Instruments

INVERTER

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

6

TTL

1

5

50 pF

CHIP CARRIER

14 ns

1.27 mm

70 Cel

OPEN-COLLECTOR

0 Cel

QUAD

S-PQCC-J20

5.5 V

4.57 mm

8.9662 mm

Not Qualified

4.5 V

4.2 mA

8.9662 mm

ALS

5962-88731012X

Texas Instruments

BUFFER

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

6

TTL

MIL-STD-883

1

5

CHIP CARRIER

6.5 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

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

AS

SN74ALS832-1FN

Texas Instruments

OR GATE

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

NO

YES

6

TTL

2

5

5

CHIP CARRIER

LDCC20,.4SQ

9 ns

48 Amp

Gates

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

5.5 V

Not Qualified

4.5 V

SN74HC21FHP4

Texas Instruments

AND GATE

INDUSTRIAL

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

2

CMOS

4

5

2/6

CHIP CARRIER

LCC20,.35SQ

140 ns

Gates

1.27 mm

85 Cel

-40 Cel

QUAD

S-XQCC-N20

6 V

2 V

NOT SPECIFIED

NOT SPECIFIED

SNJ54HC7006FK

Texas Instruments

MILITARY

NO LEAD

28

QCCN

SQUARE

CERAMIC

NO

YES

CMOS

38535Q/M;38534H;883B

CHIP CARRIER

LCC28,.45SQ

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-XQCC-N28

Not Qualified

SNJ54ALS32FK

Texas Instruments

OR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

4

TTL

MIL-PRF-38535

2

TUBE

5

5

50 pF

CHIP CARRIER

LCC20,.35SQ

16 ns

.4 Amp

Gates

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

4.9 mA

e0

8.89 mm

ALS

SNJ54ALS15AFKR

Texas Instruments

AND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

3

TTL

3

5

50 pF

CHIP CARRIER

59 ns

1.27 mm

125 Cel

OPEN-COLLECTOR

-55 Cel

QUAD

S-CQCC-N20

5.5 V

2.03 mm

8.89 mm

Not Qualified

4.5 V

3 mA

8.89 mm

ALS

SNJ54ALS811FKR

Texas Instruments

XNOR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

4

TTL

2

5

50 pF

CHIP CARRIER

60 ns

1.27 mm

125 Cel

OPEN-COLLECTOR

-55 Cel

QUAD

S-CQCC-N20

5.5 V

2.03 mm

8.89 mm

Not Qualified

4.5 V

7.5 mA

8.89 mm

ALS

SN74LVC1G11DSF

Texas Instruments

AND GATE

AUTOMOTIVE

NO LEAD

6

VSON

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

3

1.8

SMALL OUTLINE, VERY THIN PROFILE

20 ns

.35 mm

125 Cel

-40 Cel

DUAL

S-PDSO-N6

5.5 V

.4 mm

1 mm

1.65 V

1 mm

LVC/LCX/Z

SNJ54LVC32AFK

Texas Instruments

OR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

4

CMOS

MIL-PRF-38535

2

TUBE

2.7

3.3

50 pF

CHIP CARRIER

LCC20,.35SQ

4.4 ns

24 Amp

Gate

1.27 mm

125 Cel

-55 Cel

Tin/Lead (Sn/Pb)

QUAD

S-CQCC-N20

3.6 V

2.03 mm

8.89 mm

Not Qualified

2 V

.01 mA

e0

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

LVC/LCX/Z

SN54ALS22BFKR

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

2

TTL

4

5

50 pF

CHIP CARRIER

65 ns

1.27 mm

125 Cel

OPEN-COLLECTOR

-55 Cel

QUAD

S-CQCC-N20

5.5 V

2.03 mm

8.89 mm

Not Qualified

4.5 V

1.5 mA

8.89 mm

ALS

SN74HC08FH

Texas Instruments

AND GATE

INDUSTRIAL

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

4

CMOS

2

5

2/6

50 pF

CHIP CARRIER

LCC20,.35SQ

125 ns

4 Amp

Gates

1.27 mm

85 Cel

-40 Cel

QUAD

S-XQCC-N20

6 V

Not Qualified

2 V

SN54ALS38AFH

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

4

TTL

2

5

5

CHIP CARRIER

LCC20,.35SQ

59 ns

Gates

1.27 mm

125 Cel

OPEN-COLLECTOR

-55 Cel

QUAD

S-XQCC-N20

5.5 V

Not Qualified

4.5 V

SN54ALS133FH

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

1

TTL

13

5

5

CHIP CARRIER

LCC20,.35SQ

28 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

SN74AUP1G07DPWR

Texas Instruments

BUFFER

INDUSTRIAL

NO LEAD

4

HVSON

SQUARE

PLASTIC/EPOXY

YES

1

CMOS

1

3.3

SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE

21.9 ns

4 Amp

.48 mm

85 Cel

OPEN-DRAIN

-40 Cel

Nickel/Palladium/Gold (Ni/Pd/Au)

DUAL

S-PDSO-N4

1

3.6 V

.4 mm

.8 mm

.8 V

.0009 mA

e4

NOT SPECIFIED

260

.8 mm

AUP/ULP/V

SNJ54ALS03AFH

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

4

TTL

38535Q/M;38534H;883B

2

5

5

CHIP CARRIER

LCC20,.35SQ

59 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

SN54ALS1008AFKR

Texas Instruments

AND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

4

TTL

2

5

50 pF

CHIP CARRIER

11 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

9.3 mA

IOH = 1MA @ VOH = 2.4V; IOL = 12MA @ VOL = 0.4V

8.89 mm

ALS

JM38510/33301

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

4

TTL

2

5

CHIP CARRIER

6.5 ns

1.27 mm

125 Cel

-55 Cel

QUAD

S-CQCC-N20

5.5 V

1.9 mm

8.885 mm

Not Qualified

4.5 V

8.885 mm

F/FAST

SNJ54ALS22AFH

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

2

TTL

38535Q/M;38534H;883B

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

SN74HC09FH

Texas Instruments

AND GATE

INDUSTRIAL

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

4

CMOS

2

5

2/6

CHIP CARRIER

LCC20,.35SQ

131 ns

Gates

1.27 mm

85 Cel

OPEN-DRAIN

-40 Cel

QUAD

S-XQCC-N20

6 V

Not Qualified

2 V

5962-87615022X

Texas Instruments

AND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

4

CMOS

MIL-PRF-38535

2

3

CHIP CARRIER

12.5 ns

125 Cel

-55 Cel

QUAD

S-CQCC-N20

6 V

Qualified

2 V

AC

SN74ALS20AFN

Texas Instruments

NAND GATE

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

NO

YES

2

TTL

4

5

5

CHIP CARRIER

LDCC20,.4SQ

11 ns

Gates

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

5.5 V

Not Qualified

4.5 V

SNJ54ALS01FK

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

4

TTL

38535Q/M;38534H;883B

2

5

50 pF

CHIP CARRIER

LCC20,.35SQ

66 ns

Gates

1.27 mm

125 Cel

OPEN-COLLECTOR

-55 Cel

QUAD

S-CQCC-N20

5.5 V

2.03 mm

8.89 mm

Not Qualified

4.5 V

3 mA

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

ALS

5962-9680501Q2X

Texas Instruments

INVERTER

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

6

CMOS

MIL-STD-883

1

3.3

50 pF

CHIP CARRIER

13 ns

8 Amp

1.27 mm

125 Cel

-55 Cel

QUAD

S-CQCC-N20

5.5 V

2.03 mm

8.89 mm

Qualified

2 V

.02 mA

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

AHC

SN74ALS1005FN

Texas Instruments

INVERTER

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

NO

YES

6

TTL

1

5

5

CHIP CARRIER

LDCC20,.4SQ

30 ns

24 Amp

Gates

1.27 mm

70 Cel

OPEN-COLLECTOR

0 Cel

QUAD

S-PQCC-J20

5.5 V

Not Qualified

4.5 V

12 mA

NOT SPECIFIED

NOT SPECIFIED

SNJ54HC804FK

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

6

CMOS

38535Q/M;38534H;883B

2

5

2/6

150 pF

CHIP CARRIER

LCC20,.35SQ

56 ns

6 Amp

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-CQCC-N20

6 V

2.03 mm

8.89 mm

Not Qualified

2 V

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

HC/UH

5962-9218201M2A

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

3

CMOS

MIL-STD-883

3

TUBE

5

5

50 pF

CHIP CARRIER

LCC20,.35SQ

10 ns

24 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

.08 mA

e0

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

ACT

5962-86865012X

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

3

TTL

MIL-STD-883

3

5

50 pF

CHIP CARRIER

12 ns

4 Amp

1.27 mm

125 Cel

-55 Cel

QUAD

S-CQCC-N20

5.5 V

2.03 mm

8.89 mm

Qualified

4.5 V

2.2 mA

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

ALS

SN54ALS20FH

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

2

TTL

4

5

5

CHIP CARRIER

LCC20,.35SQ

12.5 ns

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-XQCC-N20

5.5 V

Not Qualified

4.5 V

SN54HC4078AFH

Texas Instruments

OR/NOR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

1

CMOS

8

5

5

CHIP CARRIER

LCC20,.35SQ

195 ns

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-XQCC-N20

6 V

Not Qualified

2 V

SNJ54AS1036AFKR

Texas Instruments

NOR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

4

TTL

2

5

50 pF

CHIP CARRIER

4.8 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

23 mA

IOH = 40MA @ VOH = 2V; IOL = 40MA @ VOL = 0.5V

8.89 mm

AS

SN74AUC34RGYR

Texas Instruments

BUFFER

INDUSTRIAL

NO LEAD

14

HVQCCN

SQUARE

PLASTIC/EPOXY

NO

YES

6

CMOS

1

TR

1.2

1.2/2.5

15 pF

CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE

LCC14/18,.14SQ,20

3.7 ns

9 Amp

Gates

.5 mm

85 Cel

3-STATE

-40 Cel

NICKEL PALLADIUM GOLD

QUAD

S-PQCC-N14

2

2.7 V

1 mm

3.5 mm

Not Qualified

.8 V

.01 mA

e4

30

260

3.5 mm

AUC

5962-86872012X

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

UNSPECIFIED

YES

4

TTL

MIL-STD-883

2

5

CHIP CARRIER

15 ns

125 Cel

OPEN-COLLECTOR

-55 Cel

TIN LEAD

QUAD

S-XQCC-N20

5.5 V

Not Qualified

4.5 V

e0

F/FAST

SN74ALS01FN

Texas Instruments

NAND GATE

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

NO

YES

TTL

CHIP CARRIER

LDCC20,.4SQ

Gates

1.27 mm

70 Cel

OPEN-COLLECTOR

0 Cel

QUAD

S-PQCC-J20

Not Qualified

SN54HC51FH

Texas Instruments

AND-OR-INVERT GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

2

CMOS

6

5

2/6

CHIP CARRIER

LCC20,.35SQ

210 ns

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-XQCC-N20

6 V

Not Qualified

2 V

SN74HC27FHP4

Texas Instruments

NOR GATE

INDUSTRIAL

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

3

CMOS

3

5

2/6

CHIP CARRIER

LCC20,.35SQ

115 ns

Gates

1.27 mm

85 Cel

-40 Cel

QUAD

S-XQCC-N20

6 V

2 V

NOT SPECIFIED

NOT SPECIFIED

SN54ALS15AFKR

Texas Instruments

AND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

3

TTL

3

5

50 pF

CHIP CARRIER

59 ns

1.27 mm

125 Cel

OPEN-COLLECTOR

-55 Cel

QUAD

S-CQCC-N20

5.5 V

2.03 mm

8.89 mm

Not Qualified

4.5 V

3 mA

8.89 mm

ALS

SN54AS20FK

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

2

TTL

4

5

5

50 pF

CHIP CARRIER

LCC20,.35SQ

5 ns

20 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

8.7 mA

8.89 mm

AS

SN54S38FK

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

4

TTL

2

5

5

50 pF

CHIP CARRIER

LCC20,.35SQ

10 ns

Gates

1.27 mm

125 Cel

OPEN-COLLECTOR

-55 Cel

QUAD

S-CQCC-N20

5.5 V

2.03 mm

8.89 mm

Not Qualified

4.5 V

80 mA

8.89 mm

S

SN54AS86FK

Texas Instruments

XOR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

4

TTL

2

5

5

CHIP CARRIER

LCC20,.35SQ

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

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

AS

SN54ALS22AFH

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

2

TTL

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

SN74ALS34FN-00

Texas Instruments

BUFFER

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

6

TTL

1

5

CHIP CARRIER

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

5.5 V

4.57 mm

8.9662 mm

Not Qualified

4.5 V

8.9662 mm

ALS

SN54F27FK

Texas Instruments

NOR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

3

TTL

3

5

5

50 pF

CHIP CARRIER

LCC20,.35SQ

5.5 ns

20 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

12 mA

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

F/FAST

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.