THROUGH-HOLE 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

SN7453N-10

Texas Instruments

AND-OR-INVERT GATE

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

TTL

8

5

15 pF

IN-LINE

15 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

9.5 mA

EXPANDABLE

19.305 mm

TTL/H/L

SN74LS20N-00

Texas Instruments

NAND GATE

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

2

TTL

4

5

15 pF

IN-LINE

15 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

2.2 mA

19.305 mm

LS

SN54AS10J

Texas Instruments

NAND GATE

MILITARY

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

NO

3

TTL

3

TUBE

5

5

50 pF

IN-LINE

DIP14,.3

5 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

13 mA

e0

NOT SPECIFIED

NOT SPECIFIED

19.56 mm

AS

SN7439N

Texas Instruments

NAND GATE

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

NO

4

TTL

2

5

5

45 pF

IN-LINE

DIP14,.3

18 ns

Gates

2.54 mm

70 Cel

OPEN-COLLECTOR

0 Cel

DUAL

R-PDIP-T14

5.25 V

5.08 mm

7.62 mm

Not Qualified

4.75 V

54 mA

NOT SPECIFIED

NOT SPECIFIED

19.305 mm

TTL/H/L

SN74ALS05NP3

Texas Instruments

INVERTER

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

NO

6

TTL

1

5

5

IN-LINE

DIP14,.3

54 ns

Gates

2.54 mm

70 Cel

OPEN-COLLECTOR

0 Cel

DUAL

R-PDIP-T14

5.5 V

4.5 V

SN54HC4075J

Texas Instruments

OR GATE

MILITARY

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

NO

3

CMOS

3

5

2/6

50 pF

IN-LINE

DIP14,.3

150 ns

5.2 Amp

Gates

2.54 mm

125 Cel

-55 Cel

DUAL

R-GDIP-T14

6 V

5.08 mm

7.62 mm

Not Qualified

2 V

NOT SPECIFIED

NOT SPECIFIED

19.56 mm

HC/UH

SN74AS02NE4

Texas Instruments

NOR GATE

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

NO

4

TTL

2

TUBE

5

5

50 pF

IN-LINE

DIP14,.3

4.5 ns

20 Amp

Gates

2.54 mm

70 Cel

0 Cel

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

DUAL

R-PDIP-T14

5.5 V

5.08 mm

7.62 mm

Not Qualified

4.5 V

20.1 mA

e4

NOT SPECIFIED

NOT SPECIFIED

19.305 mm

AS

SN7423N1

Texas Instruments

NOR GATE

COMMERCIAL

THROUGH-HOLE

16

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

NO

2

TTL

4

IN-LINE

DIP16,.3

22 ns

Gates

2.54 mm

70 Cel

0 Cel

DUAL

R-PDIP-T16

5.5 V

Not Qualified

4.5 V

SN74H30N3

Texas Instruments

NAND GATE

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

NO

1

TTL

8

5

5

IN-LINE

DIP14,.3

12 ns

Gates

2.54 mm

70 Cel

0 Cel

DUAL

R-PDIP-T14

5.25 V

4.75 V

SNJ54LS20J-00

Texas Instruments

NAND GATE

MILITARY

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

2

TTL

4

5

15 pF

IN-LINE

15 ns

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

2.2 mA

19.56 mm

LS

SNJ54AS04J-00

Texas Instruments

INVERTER

MILITARY

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

6

TTL

1

5

50 pF

IN-LINE

4.5 ns

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

26.3 mA

19.56 mm

AS

SN74ALS805N1

Texas Instruments

NOR GATE

COMMERCIAL

THROUGH-HOLE

20

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

NO

TTL

IN-LINE

DIP20,.3

24 Amp

Gates

2.54 mm

70 Cel

0 Cel

DUAL

R-PDIP-T20

Not Qualified

SNJ54HCT00J-00

Texas Instruments

NAND GATE

MILITARY

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

4

CMOS

2

5

50 pF

IN-LINE

30 ns

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

19.56 mm

HCT

SNJ54LV132AJ

Texas Instruments

NAND GATE

MILITARY

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

YES

NO

4

CMOS

MIL-PRF-38535

2

TUBE

2.5

3.3

50 pF

IN-LINE

DIP14,.3

23 ns

6 Amp

Gates

2.54 mm

125 Cel

3-STATE

-55 Cel

DUAL

R-GDIP-T14

5.5 V

5.08 mm

7.62 mm

Not Qualified

2 V

19.56 mm

LV/LV-A/LVX/H

SN74ALS1008JP4

Texas Instruments

AND GATE

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC

NO

NO

4

TTL

2

5

5

IN-LINE

DIP14,.3

9 ns

Gates

2.54 mm

70 Cel

0 Cel

DUAL

R-XDIP-T14

5.5 V

4.5 V

SN74HC266N1

Texas Instruments

XNOR GATE

INDUSTRIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

NO

4

CMOS

2

5

2/6

IN-LINE

DIP14,.3

155 ns

Gates

2.54 mm

85 Cel

OPEN-DRAIN

-40 Cel

DUAL

R-PDIP-T14

6 V

Not Qualified

2 V

NOT SPECIFIED

NOT SPECIFIED

SN74H87NP1

Texas Instruments

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

TTL

5

5

IN-LINE

DIP14,.3

Gates

2.54 mm

70 Cel

0 Cel

DUAL

R-PDIP-T14

Not Qualified

SNJ54ALS1032AJ

Texas Instruments

OR GATE

MILITARY

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

NO

4

TTL

38535Q/M;38534H;883B

2

5

5

50 pF

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

10.6 mA

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

NOT SPECIFIED

NOT SPECIFIED

19.56 mm

ALS

SN74ALS21J

Texas Instruments

AND GATE

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC

NO

NO

2

TTL

4

5

5

IN-LINE

DIP14,.3

15 ns

Gates

2.54 mm

70 Cel

0 Cel

DUAL

R-XDIP-T14

5.5 V

Not Qualified

4.5 V

SN74S64N-00

Texas Instruments

AND-OR-INVERT GATE

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

1

TTL

11

5

15 pF

IN-LINE

5.5 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

16 mA

19.305 mm

S

SN74HC21JP4

Texas Instruments

AND GATE

INDUSTRIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC

NO

NO

2

CMOS

4

5

2/6

IN-LINE

DIP14,.3

140 ns

Gates

2.54 mm

85 Cel

-40 Cel

DUAL

R-XDIP-T14

6 V

2 V

NOT SPECIFIED

NOT SPECIFIED

SN74ALS1010J4

Texas Instruments

NAND 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

SNJ54LS21J-00

Texas Instruments

AND GATE

MILITARY

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

2

TTL

4

5

15 pF

IN-LINE

20 ns

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

4.4 mA

19.56 mm

LS

DM54LS20J

Texas Instruments

NAND GATE

MILITARY

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

NO

2

TTL

4

5

5

50 pF

IN-LINE

DIP14,.3

15 ns

4 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

2.2 mA

NOT SPECIFIED

NOT SPECIFIED

19.939 mm

LS

SN54LS04J883B

Texas Instruments

INVERTER

MILITARY

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

6

TTL

MIL-STD-883 Class B

1

5

IN-LINE

15 ns

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

19.56 mm

LS

SNJ54S65J

Texas Instruments

AND-OR-INVERT GATE

MILITARY

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

NO

NO

1

TTL

38535Q/M;38534H;883B

11

5

15 pF

IN-LINE

DIP14,.3

8.5 ns

Gates

2.54 mm

125 Cel

OPEN-COLLECTOR

-55 Cel

DUAL

R-CDIP-T14

5.5 V

5.08 mm

7.62 mm

Not Qualified

4.5 V

16 mA

4-2-3-2 INPUT

NOT SPECIFIED

NOT SPECIFIED

19.56 mm

S

SN54ALS1002AJ

Texas Instruments

NOR GATE

MILITARY

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

NO

4

TTL

2

5

5

50 pF

IN-LINE

DIP14,.3

10 ns

24 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

9 mA

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

19.56 mm

ALS

SN74ALS1000AN1

Texas Instruments

NAND GATE

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

NO

TTL

5

5

IN-LINE

DIP14,.3

Gates

2.54 mm

70 Cel

0 Cel

DUAL

R-PDIP-T14

Not Qualified

SN54ALS01J

Texas Instruments

NAND GATE

MILITARY

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

NO

4

TTL

2

5

50 pF

IN-LINE

DIP14,.3

66 ns

Gates

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

3 mA

NOT SPECIFIED

NOT SPECIFIED

19.56 mm

ALS

CD74HC20EE4

Texas Instruments

NAND GATE

MILITARY

THROUGH-HOLE

14

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

NO

2

CMOS

4

TUBE

4.5

2/6

50 pF

IN-LINE

DIP14,.3

150 ns

4 Amp

Gates

2.54 mm

125 Cel

-55 Cel

NICKEL PALLADIUM GOLD

DUAL

R-PDIP-T14

6 V

5.08 mm

7.62 mm

Not Qualified

2 V

e4

19.305 mm

HC/UH

SN74ALS8003AP

Texas Instruments

NAND GATE

COMMERCIAL

THROUGH-HOLE

8

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

NO

2

TTL

2

5

5

50 pF

IN-LINE

DIP8,.3

8 ns

Gates

2.54 mm

70 Cel

0 Cel

DUAL

R-PDIP-T8

5.5 V

5.08 mm

7.62 mm

Not Qualified

4.5 V

1.5 mA

NOT SPECIFIED

NOT SPECIFIED

9.81 mm

ALS

CD4572UBEE4

Texas Instruments

INVERTER

MILITARY

THROUGH-HOLE

16

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

NO

4

CMOS

1

TUBE

5

5/15

50 pF

IN-LINE

DIP16,.3

200 ns

6.8 Amp

Gates

2.54 mm

125 Cel

-55 Cel

NICKEL PALLADIUM GOLD

DUAL

R-PDIP-T16

18 V

5.08 mm

7.62 mm

Not Qualified

3 V

.15 mA

MIXED WITH ONE 2-INPUT NOR & ONE 2-INPUT NAND GATE

e4

19.305 mm

4000/14000/40000

5962-00-451-6345

Texas Instruments

AND-OR-INVERT GATE

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

NO

TTL

IN-LINE

DIP14,.3

Gates

2.54 mm

70 Cel

0 Cel

DUAL

R-PDIP-T14

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

5962-01-086-0305

Texas Instruments

OR GATE

MILITARY

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC

NO

NO

TTL

38535Q/M;38534H;883B

5

5

IN-LINE

DIP14,.3

Gates

2.54 mm

125 Cel

-55 Cel

DUAL

R-XDIP-T14

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

SN7453N1

Texas Instruments

AND-OR-INVERT GATE

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

NO

1

TTL

8

5

IN-LINE

DIP14,.3

22 ns

Gates

2.54 mm

70 Cel

0 Cel

DUAL

R-PDIP-T14

5.25 V

Not Qualified

4.75 V

NOT SPECIFIED

NOT SPECIFIED

SN54AHC86J

Texas Instruments

XOR GATE

MILITARY

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

4

CMOS

2

3.3

50 pF

IN-LINE

16.5 ns

2.54 mm

125 Cel

-55 Cel

DUAL

R-GDIP-T14

5.5 V

5.08 mm

7.62 mm

Not Qualified

2 V

19.56 mm

AHC

SN7401N

Texas Instruments

NAND GATE

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

NO

4

TTL

2

5

5

15 pF

IN-LINE

DIP14,.3

55 ns

16 Amp

Gates

2.54 mm

70 Cel

OPEN-COLLECTOR

0 Cel

DUAL

R-PDIP-T14

5.25 V

5.08 mm

7.62 mm

Not Qualified

4.75 V

22 mA

NOT SPECIFIED

NOT SPECIFIED

19.305 mm

TTL/H/L

SN74H54J

Texas Instruments

AND-OR-INVERT GATE

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

NO

1

TTL

9

5

25 pF

IN-LINE

DIP14,.3

11 ns

Gates

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

14 mA

2-2-3-2 INPUT

NOT SPECIFIED

NOT SPECIFIED

19.56 mm

TTL/H/L

5962-8872901CX

Texas Instruments

INVERTER

MILITARY

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

NO

6

TTL

MIL-STD-883

1

5

50 pF

IN-LINE

5 ns

40 Amp

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

27 mA

NOT SPECIFIED

NOT SPECIFIED

19.56 mm

AS

5962-8682001EA

Texas Instruments

BUFFER

MILITARY

THROUGH-HOLE

16

DIP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

NO

NO

6

CMOS

MIL-STD-883

1

TUBE

4.5

2/6

50 pF

IN-LINE

DIP16,.3

130 ns

4 Amp

Gate

2.54 mm

125 Cel

-55 Cel

TIN LEAD

DUAL

R-CDIP-T16

6 V

5.08 mm

7.62 mm

Qualified

2 V

.02 mA

CMOS-TTL LEVEL TRANSLATOR

e0

19.56 mm

HC

5962-8684201CA

Texas Instruments

AND GATE

MILITARY

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

NO

4

TTL

MIL-STD-883

2

TUBE

5

5

50 pF

IN-LINE

DIP14,.3

14 ns

8 Amp

Gate

2.54 mm

125 Cel

-55 Cel

Tin/Lead (Sn/Pb)

DUAL

R-GDIP-T14

5.5 V

5.08 mm

7.62 mm

Qualified

4.5 V

4 mA

e0

NOT SPECIFIED

NOT SPECIFIED

19.56 mm

ALS

SN74ALS40AN1

Texas Instruments

NAND GATE

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

NO

TTL

5

5

IN-LINE

DIP14,.3

Gates

2.54 mm

70 Cel

0 Cel

DUAL

R-PDIP-T14

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

SN74LS26J

Texas Instruments

NAND GATE

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

NO

4

TTL

2

5

5

15 pF

IN-LINE

DIP14,.3

28 ns

8 Amp

Gates

2.54 mm

70 Cel

OPEN-COLLECTOR

0 Cel

DUAL

R-GDIP-T14

5.25 V

5.08 mm

7.62 mm

Not Qualified

4.75 V

4.4 mA

NOT SPECIFIED

NOT SPECIFIED

19.56 mm

LS

SN74HC804J

Texas Instruments

NAND GATE

INDUSTRIAL

THROUGH-HOLE

20

DIP

RECTANGULAR

CERAMIC

NO

NO

CMOS

5

2/6

50 pF

IN-LINE

DIP20,.3

6 Amp

Gates

2.54 mm

85 Cel

-40 Cel

DUAL

R-XDIP-T20

6 V

Not Qualified

2 V

SN54LS28J

Texas Instruments

NOR GATE

MILITARY

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

NO

4

TTL

2

5

5

45 pF

IN-LINE

DIP14,.3

24 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

13.8 mA

NOT SPECIFIED

NOT SPECIFIED

19.56 mm

LS

5962-01-330-4770

Texas Instruments

AND 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 Qualified

NOT SPECIFIED

NOT SPECIFIED

SN7420NP1

Texas Instruments

NAND GATE

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

NO

2

TTL

4

5

5

IN-LINE

DIP14,.3

22 ns

Gates

2.54 mm

70 Cel

0 Cel

DUAL

R-PDIP-T14

5.25 V

Not Qualified

4.75 V

SN74ALS08J4

Texas Instruments

AND GATE

COMMERCIAL

THROUGH-HOLE

14

DIP

RECTANGULAR

CERAMIC

NO

NO

4

TTL

2

5

5

IN-LINE

DIP14,.3

14 ns

Gates

2.54 mm

70 Cel

0 Cel

DUAL

R-XDIP-T14

5.5 V

4.5 V

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.