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

SN74HC27FH

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

Not Qualified

2 V

NOT SPECIFIED

NOT SPECIFIED

5962-87609022A

Texas Instruments

INVERTER

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

6

CMOS

MIL-PRF-38535

1

3

3.3/5

50 pF

CHIP CARRIER

LCC20,.35SQ

10 ns

24 Amp

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-CQCC-N20

6 V

Not Qualified

2 V

NOT SPECIFIED

NOT SPECIFIED

AC

SN74ALS33AFN3

Texas Instruments

NOR GATE

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

NO

YES

4

TTL

2

5

5

CHIP CARRIER

LDCC20,.4SQ

33 ns

Gates

1.27 mm

70 Cel

OPEN-COLLECTOR

0 Cel

QUAD

S-PQCC-J20

5.5 V

4.5 V

NOT SPECIFIED

NOT SPECIFIED

SN74AS804AN3

Texas Instruments

NAND GATE

COMMERCIAL

THROUGH-HOLE

20

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

NO

6

TTL

2

5

5

IN-LINE

DIP20,.3

9 ns

Gates

2.54 mm

70 Cel

0 Cel

DUAL

R-PDIP-T20

5.5 V

4.5 V

27 mA

5962-9757801Q2X

Texas Instruments

NOR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

4

TTL

MIL-PRF-38535 Class Q

2

5

50 pF

CHIP CARRIER

7.5 ns

20 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

13 mA

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

F/FAST

SN54AS1000AFKR

Texas Instruments

NAND 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

2.03 mm

8.89 mm

Not Qualified

4.5 V

19 mA

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

8.89 mm

AS

SN54ALS8003FH

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

TTL

5

5

CHIP CARRIER

LCC20,.35SQ

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-XQCC-N20

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

SNJ54HC20FK

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

2

CMOS

MIL-PRF-38535

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

QUAD

S-CQCC-N20

6 V

2.03 mm

8.89 mm

Not Qualified

2 V

.04 mA

e0

8.89 mm

HC

SN54AS802J-00

Texas Instruments

OR/NOR GATE

MILITARY

THROUGH-HOLE

20

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

3

TTL

4

5

IN-LINE

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

24.195 mm

AS

74AC11004DWG4

Texas Instruments

INVERTER

INDUSTRIAL

GULL WING

20

SOP

RECTANGULAR

PLASTIC/EPOXY

NO

YES

6

CMOS

1

5

3.3/5

50 pF

SMALL OUTLINE

SOP20,.4

10 ns

24 Amp

Gates

1.27 mm

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

R-PDSO-G20

1

5.5 V

2.65 mm

7.5 mm

Not Qualified

3 V

CENTER PIN VCC AND GND

e4

30

260

12.8 mm

AC

5962-89734022A

Texas Instruments

INVERTER

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

6

CMOS

MIL-STD-883

1

5

5

50 pF

CHIP CARRIER

LCC20,.35SQ

10.3 ns

24 Amp

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-CQCC-N20

5.5 V

Not Qualified

4.5 V

NOT SPECIFIED

NOT SPECIFIED

ACT

SN74HC00FHP4

Texas Instruments

NAND 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

SN54AS805AFH-00

Texas Instruments

NOR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

6

TTL

2

5

50 pF

CHIP CARRIER

4.5 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

32 mA

8.89 mm

AS

SNJ54ALS37AFH

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

TTL

38535Q/M;38534H;883B

5

5

CHIP CARRIER

LCC20,.35SQ

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-XQCC-N20

Not Qualified

NOT SPECIFIED

NOT SPECIFIED

5962-01-249-9750

Texas Instruments

NAND GATE

MILITARY

THROUGH-HOLE

20

DIP

RECTANGULAR

CERAMIC

NO

NO

TTL

5

5

IN-LINE

DIP20,.3

40 Amp

Gates

2.54 mm

125 Cel

-55 Cel

DUAL

R-XDIP-T20

Not Qualified

27 mA

NOT SPECIFIED

NOT SPECIFIED

SN54LVC00AFK

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

4

CMOS

2

2.7

CHIP CARRIER

5.1 ns

1.27 mm

125 Cel

-55 Cel

QUAD

S-CQCC-N20

3.6 V

2.03 mm

8.89 mm

Not Qualified

2 V

8.89 mm

LVC/LCX/Z

SNJ54ACT11010FK

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC

NO

YES

3

CMOS

38535Q/M;38534H;883B

3

5

5

CHIP CARRIER

LCC20,.35SQ

9.3 ns

Gates

1.27 mm

125 Cel

-55 Cel

QUAD

S-XQCC-N20

5.5 V

Not Qualified

4.5 V

5962-8869401RA

Texas Instruments

NOR GATE

MILITARY

THROUGH-HOLE

20

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

NO

6

TTL

MIL-STD-883

2

5

IN-LINE

DIP20,.3

9 ns

12 Amp

Gates

2.54 mm

125 Cel

-55 Cel

DUAL

R-GDIP-T20

5.5 V

Not Qualified

4.5 V

NOT SPECIFIED

NOT SPECIFIED

ALS

SNJ54LV20AFK

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

2

CMOS

MIL-PRF-38535

4

TUBE

2.5

3.3

50 pF

CHIP CARRIER

LCC20,.35SQ

18.5 ns

6 Amp

Gates

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

SN74AS805J4

Texas Instruments

NOR GATE

COMMERCIAL

THROUGH-HOLE

20

DIP

RECTANGULAR

CERAMIC

NO

NO

6

TTL

2

5

5

IN-LINE

DIP20,.3

4.3 ns

Gates

2.54 mm

70 Cel

0 Cel

DUAL

R-XDIP-T20

5.5 V

4.5 V

76 mA

SN74ALS1805AN3

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

14 mA

NOT SPECIFIED

NOT SPECIFIED

SN54LS16FKR

Texas Instruments

INVERTER

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

6

TTL

1

5

15 pF

CHIP CARRIER

20 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

60 mA

8.89 mm

LS

5962-9757901Q2A

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

3

TTL

MIL-PRF-38535 Class Q

3

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

7.7 mA

e0

8.89 mm

F/FAST

5962-8760902RX

Texas Instruments

INVERTER

MILITARY

THROUGH-HOLE

20

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

6

CMOS

MIL-PRF-38535

1

3

IN-LINE

10 ns

125 Cel

-55 Cel

DUAL

R-GDIP-T20

6 V

Not Qualified

2 V

AC

SN54ALS40AFH-00

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

2

TTL

4

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

3.9 mA

8.89 mm

ALS

5962-8973402RA

Texas Instruments

INVERTER

MILITARY

THROUGH-HOLE

20

DIP

RECTANGULAR

CERAMIC, GLASS-SEALED

NO

NO

6

CMOS

MIL-STD-883

1

5

5

50 pF

IN-LINE

DIP20,.3

10.3 ns

24 Amp

Gates

2.54 mm

125 Cel

-55 Cel

DUAL

R-GDIP-T20

5.5 V

Not Qualified

4.5 V

NOT SPECIFIED

NOT SPECIFIED

ACT

SNJ54HC86FK-00

Texas Instruments

XOR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

4

CMOS

2

5

50 pF

CHIP CARRIER

30 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

SN54AHCT132FKR

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

4

CMOS

2

5

CHIP CARRIER

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

8.89 mm

AHCT/VHCT

SN74ALS804FN-00

Texas Instruments

NAND 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

12 mA

8.9662 mm

ALS

SN54AS811FK

Texas Instruments

XNOR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

4

TTL

2

5

CHIP CARRIER

LCC20,.35SQ

12.8 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

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

AS

SN74S05FN3

Texas Instruments

INVERTER

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

NO

YES

6

TTL

1

5

5

CHIP CARRIER

LDCC20,.4SQ

7.5 ns

Gates

1.27 mm

70 Cel

OPEN-COLLECTOR

0 Cel

QUAD

S-PQCC-J20

5.25 V

4.75 V

NOT SPECIFIED

NOT SPECIFIED

SNJ54AHCT132FK

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

PLASTIC/EPOXY

YES

YES

1

CMOS

MIL-PRF-38535

2

TUBE

5

5

50 pF

CHIP CARRIER

LCC20,.35SQ

10 ns

8 Amp

Gates

1.27 mm

125 Cel

-55 Cel

NICKEL PALLADIUM GOLD

QUAD

S-PQCC-N20

5.5 V

2.03 mm

8.89 mm

Not Qualified

4.5 V

e4

8.89 mm

AHCT/VHCT/VT

SN74HC14FH

Texas Instruments

INVERTER

INDUSTRIAL

NO LEAD

20

QCCN

SQUARE

CERAMIC

YES

YES

6

CMOS

1

5

2/6

CHIP CARRIER

LCC20,.35SQ

155 ns

Gates

1.27 mm

85 Cel

-40 Cel

QUAD

S-XQCC-N20

6 V

Not Qualified

2 V

SN74HC32FH

Texas Instruments

OR 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

SN54HC02FK-00

Texas Instruments

NOR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

4

CMOS

2

5

50 pF

CHIP CARRIER

27 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

SNJ54ALS1020AFK

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

2

TTL

38535Q/M;38534H;883B

4

5

5

50 pF

CHIP CARRIER

LCC20,.35SQ

10 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

3.9 mA

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

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

ALS

SN74AS804JP4

Texas Instruments

NAND GATE

COMMERCIAL

THROUGH-HOLE

20

DIP

RECTANGULAR

CERAMIC

NO

NO

6

TTL

2

5

5

IN-LINE

DIP20,.3

4 ns

Gates

2.54 mm

70 Cel

0 Cel

DUAL

R-XDIP-T20

5.5 V

4.5 V

63 mA

SNJ54ALS805AFK

Texas Instruments

NOR GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

6

TTL

MIL-PRF-38535

2

5

50 pF

CHIP CARRIER

LCC20,.35SQ

9 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

14 mA

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

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

ALS

SNJ54AHC132FK

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

YES

4

CMOS

MIL-PRF-38535

2

TUBE

3.3

2/5.5

50 pF

CHIP CARRIER

LCC20,.35SQ

17.5 ns

8 Amp

Gates

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

AHC/VHC/H/U/V

SN74AS04FN

Texas Instruments

INVERTER

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

NO

YES

6

TTL

1

5

5

CHIP CARRIER

LDCC20,.4SQ

5 ns

Gates

1.27 mm

70 Cel

0 Cel

QUAD

S-PQCC-J20

5.5 V

Not Qualified

4.5 V

SNJ54LV14FK

Texas Instruments

INVERTER

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

YES

6

CMOS

MIL-PRF-38535

1

2.5

3.3

50 pF

CHIP CARRIER

LCC20,.35SQ

27 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

2 V

NOT SPECIFIED

NOT SPECIFIED

8.89 mm

LV/LV-A/LVX/H

SN54ALS1003AFKR

Texas Instruments

NAND GATE

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

4

TTL

2

5

50 pF

CHIP CARRIER

40 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

7.8 mA

IOH = 0.1MA @ VOH = 5.5V; IOL = 12MA @ VOL = 0.4V

8.89 mm

ALS

SN54AS27FH-00

Texas Instruments

NOR 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

17.1 mA

8.89 mm

AS

SN74AS832AJ

Texas Instruments

OR GATE

COMMERCIAL

THROUGH-HOLE

20

DIP

RECTANGULAR

CERAMIC

NO

NO

6

TTL

2

5

5

IN-LINE

DIP20,.3

9 ns

Gates

2.54 mm

70 Cel

0 Cel

DUAL

R-XDIP-T20

5.5 V

Not Qualified

4.5 V

36 mA

SN74AS805AJP4

Texas Instruments

NOR GATE

COMMERCIAL

THROUGH-HOLE

20

DIP

RECTANGULAR

CERAMIC

NO

NO

6

TTL

2

5

5

IN-LINE

DIP20,.3

4.3 ns

Gates

2.54 mm

70 Cel

0 Cel

DUAL

R-XDIP-T20

5.5 V

4.5 V

32 mA

SN74LS26FN

Texas Instruments

NAND GATE

COMMERCIAL

J BEND

20

QCCJ

SQUARE

PLASTIC/EPOXY

NO

YES

4

TTL

2

5

5

15 pF

CHIP CARRIER

LDCC20,.4SQ

28 ns

Gates

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

4.4 mA

NOT SPECIFIED

NOT SPECIFIED

8.9662 mm

LS

SNJ54LV04AFK

Texas Instruments

INVERTER

MILITARY

NO LEAD

20

QCCN

SQUARE

CERAMIC, METAL-SEALED COFIRED

NO

YES

6

CMOS

MIL-PRF-38535

1

TUBE

2.5

3.3

50 pF

CHIP CARRIER

LCC20,.35SQ

18 ns

6 Amp

Gates

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

74AC11004N

Texas Instruments

INVERTER

INDUSTRIAL

THROUGH-HOLE

20

DIP

RECTANGULAR

PLASTIC/EPOXY

NO

NO

6

CMOS

1

TUBE

5

3.3/5

50 pF

IN-LINE

DIP20,.3

10 ns

24 Amp

Gates

2.54 mm

85 Cel

-40 Cel

NICKEL PALLADIUM GOLD

DUAL

R-PDIP-T20

5.5 V

5.08 mm

7.62 mm

Not Qualified

3 V

.04 mA

CENTER PIN VCC AND GND

e4

25.4 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.