20 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

SNJ54ALS21FH

Texas Instruments

AND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

2

TTL

38535Q/M;38534H;883B

4

5

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

SN54HC7001FK

Texas Instruments

AND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

YES

4

CMOS

2

5

2/6

50 pF

CHIP CARRIER

LCC20,.35SQ

195 ns

4 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

8.89 mm

HC/UH

SNJ54HC21FKR

Texas Instruments

AND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

2

CMOS

MIL-PRF-38535

4

5

50 pF

CHIP CARRIER

165 ns

1.27 mm

125 Cel

-55 Cel

QUAD

S-CQCC-N20

6 V

2.03 mm

8.89 mm

Not Qualified

2 V

8.89 mm

HC/UH

SN74HC386FN3

Texas Instruments

XOR GATE

INDUSTRIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

NO

YES

4

CMOS

2

5

2/6

CHIP CARRIER

LDCC20,.4SQ

125 ns

Gates

1.27 mm

85 Cel

-40 Cel

QUAD

S-PQCC-J20

6 V

2 V

SNJ54AHC00FK

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

4

CMOS

MIL-PRF-38535

2

TUBE

3.3

2/5.5

50 pF

CHIP CARRIER

LCC20,.35SQ

13 ns

50 Amp

Gates

1.27 mm

125 Cel

-55 Cel

Tin/Lead (Sn/Pb)

QUAD

S-CQCC-N20

5.5 V

2.03 mm

8.89 mm

Not Qualified

2 V

.02 mA

e0

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

AHC/VHC/H/U/V

SN74HC86FH

Texas Instruments

XOR GATE

INDUSTRIAL

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

4

CMOS

2

5

2/6

CHIP CARRIER

LCC20,.35SQ

125 ns

Gates

1.27 mm

85 Cel

-40 Cel

QUAD

S-XQCC-N20

6 V

Not Qualified

2 V

NOT SPECIFIED

NOT SPECIFIED

SN54ALS808AFK

Texas Instruments

AND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

6

TTL

2

5

5

50 pF

CHIP CARRIER

LCC20,.35SQ

10 ns

12 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

16 mA

IOH = 12MA @ VOH = 2V; IOL = 12MA @ VOL = 0.4V

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

ALS

SN54AC10FK

Texas Instruments

NAND 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

7 ns

12 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

AC

5962-01-227-9011

Texas Instruments

INVERTER

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

TTL

38535Q/M;38534H;883B

5

5

15 pF

CHIP CARRIER

LCC20,.35SQ

4 Amp

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-XQCC-N20

Not Qualified

6.6 mA

NOT SPECIFIED

NOT SPECIFIED

SN54HC7003FH

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

YES

YES

CMOS

CHIP CARRIER

LCC20,.35SQ

Gates

1.27 mm

125 Cel

OPEN-DRAIN

-55 Cel

QUAD

S-XQCC-N20

Not Qualified

JM38510/33004B2A

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

2

TTL

MIL-M-38510 Class B

4

TUBE

5

50 pF

CHIP CARRIER

7 ns

1 Amp

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

5.1 mA

e0

8.89 mm

F/FAST

SNJ54HC133FK-00

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

13

5

50 pF

CHIP CARRIER

45 ns

1.27 mm

125 Cel

-55 Cel

QUAD

S-CQCC-N20

6 V

2.03 mm

8.89 mm

Not Qualified

2 V

8.89 mm

HC/UH

5962-88731012A

Texas Instruments

BUFFER

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

6

TTL

MIL-STD-883

1

5

5

CHIP CARRIER

LCC20,.35SQ

6.5 ns

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-PQCC-N20

5.5 V

2.03 mm

8.89 mm

Not Qualified

4.5 V

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

AS

5962-89550012A

Texas Instruments

XOR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

4

CMOS

MIL-STD-883

2

TUBE

3.3

3.3/5

50 pF

CHIP CARRIER

LCC20,.35SQ

14 ns

24 Amp

Gate

1.27 mm

125 Cel

-55 Cel

Tin/Lead (Sn/Pb)

QUAD

S-CQCC-N20

6 V

2.03 mm

8.89 mm

Qualified

2 V

.02 mA

e0

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

AC

SN54ALS03BFK

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

23 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

SN54F04FKR

Texas Instruments

INVERTER

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

6

TTL

1

5

50 pF

CHIP CARRIER

7 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

15.3 mA

8.89 mm

F/FAST

SN54AS10FH-00

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

3

TTL

3

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

13 mA

8.89 mm

AS

SNJ54AS1008AFK

Texas Instruments

AND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

4

TTL

38535Q/M;38534H;883B

2

5

5

50 pF

CHIP CARRIER

LCC20,.35SQ

6.5 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

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

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

AS

SN74LS386AFN3

Texas Instruments

XOR GATE

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

NO

YES

4

TTL

2

5

5

CHIP CARRIER

LDCC20,.4SQ

30 ns

Gates

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

5.25 V

4.75 V

SN74AS800N

Texas Instruments

AND/NAND GATE

COMMERCIAL

THROUGH-HOLE

20

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

NO

TTL

IN-LINE

DIP20,.3

Gates

2.54 mm

70 Cel

0 Cel

DUAL

R-PDIP-T20

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

SN54AS804AJ-00

Texas Instruments

NAND GATE

MILITARY

THROUGH-HOLE

20

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

6

TTL

2

5

50 pF

IN-LINE

4.5 ns

2.54 mm

125 Cel

-55 Cel

DUAL

R-GDIP-T20

5.5 V

5.08 mm

7.62 mm

Not Qualified

4.5 V

27 mA

24.195 mm

AS

SNJ54AS04FK

Texas Instruments

INVERTER

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

6

TTL

MIL-PRF-38535

1

TUBE

5

5

50 pF

CHIP CARRIER

LCC20,.35SQ

4.5 ns

20 Amp

Gates

1.27 mm

125 Cel

3-STATE

-55 Cel

TIN LEAD

QUAD

S-CQCC-N20

5.5 V

2.03 mm

8.89 mm

Not Qualified

4.5 V

26.3 mA

e0

8.89 mm

AS

SN74ALS1805ADW

Texas Instruments

NOR GATE

COMMERCIAL

GULL WING

20

SOP

RECTANGULAR

PLASTIC/EPOXY

NO

YES

TTL

SMALL OUTLINE

SOP20,.4

24 Amp

Gates

1.27 mm

70 Cel

0 Cel

DUAL

R-PDSO-G20

Not Qualified

14 mA

NOT SPECIFIED

NOT SPECIFIED

SNJ54ALS1003AFH

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

40 ns

Gates

1.27 mm

125 Cel

OPEN-COLLECTOR

-55 Cel

QUAD

S-XQCC-N20

5.5 V

Not Qualified

4.5 V

SN74AS832BDWG4

Texas Instruments

OR GATE

COMMERCIAL

GULL WING

20

SOP

RECTANGULAR

PLASTIC/EPOXY

NO

YES

6

TTL

2

TUBE

5

5

SMALL OUTLINE

SOP20,.4

6.3 ns

48 Amp

Gates

1.27 mm

70 Cel

0 Cel

NICKEL PALLADIUM GOLD

DUAL

R-PDSO-G20

1

5.5 V

2.65 mm

7.5 mm

Not Qualified

4.5 V

36 mA

IOH = 48MA @ VOH = 2V; IOL = 48MA @ VOL = 0.5V

e4

30

260

12.8 mm

AS

SN74ALS05AFN

Texas Instruments

INVERTER

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

NO

YES

6

TTL

1

5

5

CHIP CARRIER

LDCC20,.4SQ

54 ns

Gates

1.27 mm

70 Cel

OPEN-COLLECTOR

0 Cel

QUAD

S-PQCC-J20

5.5 V

Not Qualified

4.5 V

SN74S10FN3

Texas Instruments

NAND GATE

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

NO

YES

3

TTL

3

5

5

CHIP CARRIER

LDCC20,.4SQ

5 ns

Gates

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

5.25 V

4.75 V

NOT SPECIFIED

NOT SPECIFIED

SNJ54AS808AJ

Texas Instruments

AND GATE

MILITARY

THROUGH-HOLE

20

DIP

RECTANGULAR

CERAMIC

NO

NO

6

TTL

38535Q/M;38534H;883B

2

5

5

IN-LINE

DIP20,.3

6.5 ns

Gates

2.54 mm

125 Cel

-55 Cel

DUAL

R-XDIP-T20

5.5 V

Not Qualified

4.5 V

32 mA

SN74HC02FH4

Texas Instruments

NOR GATE

INDUSTRIAL

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

4

CMOS

2

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

SNJ54ACT11021FK

Texas Instruments

AND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

CMOS

38535Q/M;38534H;883B

CHIP CARRIER

LCC20,.35SQ

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-XQCC-N20

Not Qualified

SN74ALS805FN-00

Texas Instruments

NOR GATE

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

6

TTL

2

5

50 pF

CHIP CARRIER

7 ns

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

14 mA

8.9662 mm

ALS

74ACT11004PWE4

Texas Instruments

INVERTER

INDUSTRIAL

GULL WING

20

TSSOP

RECTANGULAR

PLASTIC/EPOXY

NO

YES

6

CMOS

1

TUBE

5

5

50 pF

SMALL OUTLINE, THIN PROFILE, SHRINK PITCH

TSSOP20,.25

9.7 ns

24 Amp

Gates

.65 mm

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

R-PDSO-G20

1

5.5 V

1.2 mm

4.4 mm

Not Qualified

4.5 V

e4

30

260

6.5 mm

ACT

SN74ALS32FN3

Texas Instruments

OR GATE

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

NO

YES

4

TTL

2

5

5

CHIP CARRIER

LDCC20,.4SQ

14 ns

Gates

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

5.5 V

4.5 V

NOT SPECIFIED

NOT SPECIFIED

SNJ54S65FK

Texas Instruments

AND-OR-INVERT GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

1

TTL

38535Q/M;38534H;883B

11

5

15 pF

CHIP CARRIER

LCC20,.35SQ

8.5 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

16 mA

4-2-3-2 INPUT

8.89 mm

S

5962-88576012A

Texas Instruments

AND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

2

CMOS

MIL-STD-883

4

TUBE

5

2/6

50 pF

CHIP CARRIER

LCC20,.35SQ

165 ns

5.2 Amp

Gates

1.27 mm

125 Cel

-55 Cel

Tin/Lead (Sn/Pb)

QUAD

S-CQCC-N20

6 V

2.03 mm

8.89 mm

Not Qualified

2 V

.04 mA

e0

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

HC/UH

SN54LVU04AFKR

Texas Instruments

INVERTER

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

6

CMOS

1

2.5

CHIP CARRIER

16 ns

1.27 mm

125 Cel

-55 Cel

QUAD

S-CQCC-N20

5.5 V

2.03 mm

8.89 mm

Not Qualified

2 V

8.89 mm

LV/LV-A/LVX/H

SN74ALS133FN-00

Texas Instruments

NAND GATE

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

YES

1

TTL

13

5

50 pF

CHIP CARRIER

25 ns

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 mA

8.9662 mm

ALS

SN74AS1036FN3

Texas Instruments

NOR GATE

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

NO

YES

TTL

5

5

CHIP CARRIER

LDCC20,.4SQ

Gates

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

SN74ALS804-1FN

Texas Instruments

NAND GATE

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

NO

YES

6

TTL

2

5

5

CHIP CARRIER

LDCC20,.4SQ

8 ns

48 Amp

Gates

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

5.5 V

Not Qualified

4.5 V

12 mA

SN54ALS133FK

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

1

TTL

13

5

5

50 pF

CHIP CARRIER

LCC20,.35SQ

47 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

.8 mA

8.89 mm

ALS

SN54LS54FK

Texas Instruments

AND-OR-INVERT GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

1

TTL

10

5

5

15 pF

CHIP CARRIER

LCC20,.35SQ

20 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

2 mA

2-3-3-2 INPUT

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

LS

SNJ54HC01FK

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

4

CMOS

38535Q/M;38534H;883B

2

50 pF

CHIP CARRIER

LCC20,.35SQ

155 ns

4 Amp

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-XQCC-N20

6 V

Not Qualified

2 V

NOT SPECIFIED

NOT SPECIFIED

SN74ALS832-1N3

Texas Instruments

OR GATE

COMMERCIAL

THROUGH-HOLE

20

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

NO

6

TTL

2

5

5

IN-LINE

DIP20,.3

9 ns

48 Amp

Gates

2.54 mm

70 Cel

0 Cel

DUAL

R-PDIP-T20

5.5 V

4.5 V

SN74ALS804JP4

Texas Instruments

NAND GATE

COMMERCIAL

THROUGH-HOLE

20

DIP

RECTANGULAR

CERAMIC

NO

NO

6

TTL

2

5

5

IN-LINE

DIP20,.3

8 ns

24 Amp

Gates

2.54 mm

70 Cel

0 Cel

DUAL

R-XDIP-T20

5.5 V

4.5 V

12 mA

SN54F00FKR

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

4

TTL

2

5

50 pF

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

10.2 mA

8.89 mm

F/FAST

5962-87624012X

Texas Instruments

INVERTER

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

YES

6

CMOS

MIL-STD-883

1

3.3

50 pF

CHIP CARRIER

16 ns

24 Amp

1.27 mm

125 Cel

-55 Cel

QUAD

S-CQCC-N20

6 V

2.03 mm

8.89 mm

Qualified

2 V

.08 mA

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

AC

SN54F04FK

Texas Instruments

INVERTER

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

6

TTL

1

5

5

50 pF

CHIP CARRIER

LCC20,.35SQ

7 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

15.3 mA

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

F/FAST

SN74ALS136FN3

Texas Instruments

XOR 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

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.