DFP Multiplexer & Demultiplexer 575

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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 Input Conditioning No. of Functions Maximum Frequency At Nominal Supply Technology Screening Level No. of Inputs No. of Bits Translation Packing Method Nominal Supply Voltage / Vsup (V) Power Supplies (V) Load Capacitance (CL) No. of Inverted Outputs Package Style (Meter) Package Equivalence Code Propagation Delay (tpd) Maximum I (ol) Sub-Category Terminal Pitch Maximum Operating Temperature Count Direction Output Characteristics Trigger Type Maximum Same Edge Skew (tskwd) Minimum Operating Temperature Terminal Finish No. of True Outputs Terminal Position No. of Ports 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) No. of Outputs Peak Reflow Temperature (C) Length Family

RHFAC157K01V

STMicroelectronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

300k Rad(Si)

CERAMIC, METAL-SEALED COFIRED

YES

4

CMOS

MIL-PRF-38535 Class V

2

TR

3

FLATPACK

FL16,.3

1.27 mm

150 Cel

-55 Cel

DUAL

R-CDFP-F16

6 V

2.38 mm

6.91 mm

TRUE

2 V

1

9.94 mm

AC

M54HC253K1

STMicroelectronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

50k Rad(Si)

CERAMIC, METAL-SEALED COFIRED

YES

2

CMOS

4

4.5

2/6

50 pF

FLATPACK

FL16,.3

175 ns

4 Amp

Multiplexer/Demultiplexers

1.27 mm

125 Cel

3-STATE

-55 Cel

TIN LEAD

DUAL

R-CDFP-F16

6 V

2.38 mm

6.91 mm

Not Qualified

TRUE

2 V

e0

1

9.94 mm

HC/UH

M54HC157K1

STMicroelectronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

50k Rad(Si)

CERAMIC, METAL-SEALED COFIRED

YES

4

CMOS

2

TR

4.5

2/6

50 pF

FLATPACK

FL16,.3

150 ns

4 Amp

Multiplexer/Demultiplexers

1.27 mm

125 Cel

-55 Cel

TIN LEAD

DUAL

R-CDFP-F16

6 V

2.38 mm

6.91 mm

Not Qualified

TRUE

2 V

e0

1

9.94 mm

HC/UH

HCC4512BK

STMicroelectronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

100k Rad(Si)

CERAMIC

YES

1

CMOS

ESCC9000

8

5/15

FLATPACK

FL16,.3

Multiplexer/Demultiplexers

1.27 mm

125 Cel

3-STATE

-55 Cel

DUAL

R-XDFP-F16

Not Qualified

5962-8968901VXX

STMicroelectronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

4

CMOS

MIL-PRF-38535 Class V

2

5

FLATPACK

9.5 ns

125 Cel

3-STATE

-55 Cel

DUAL

R-CDFP-F16

5.5 V

Not Qualified

TRUE

4.5 V

1

ACT

RHFACT151K02V

STMicroelectronics

MULTIPLEXER

FLAT

16

DFP

RECTANGULAR

3k Rad(Si)

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

MIL-PRF-38535 Class V

8

STRIP PACK

5

FLATPACK

FL16,.3

1.27 mm

150 Cel

-55 Cel

DUAL

R-CDFP-F16

5.5 V

2.38 mm

6.91 mm

COMPLEMENTARY

4.5 V

1

9.94 mm

ACT

5962-8606101XA

STMicroelectronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, GLASS-SEALED

YES

4

CMOS

MIL-STD-883

2

4.5

2/6

50 pF

FLATPACK

FL16,.3

190 ns

6 Amp

Multiplexer/Demultiplexers

1.27 mm

125 Cel

-55 Cel

TIN LEAD

DUAL

R-GDFP-F16

6 V

Not Qualified

TRUE

2 V

e0

1

HC/UH

5962-8870301XX

STMicroelectronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

4

CMOS

2

3

FLATPACK

11 ns

125 Cel

3-STATE

-55 Cel

DUAL

R-CDFP-F16

6 V

Not Qualified

TRUE

2 V

1

AC

RHFAC151K02V

STMicroelectronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

300k Rad(Si)

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

MIL-PRF-38535 Class V

8

TR

3

FLATPACK

FL16,.3

1.27 mm

150 Cel

-55 Cel

DUAL

R-CDFP-F16

6 V

2.38 mm

6.91 mm

COMPLEMENTARY

2 V

1

9.94 mm

AC

5962F8953901VXC

STMicroelectronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

300k Rad(Si)

CERAMIC, METAL-SEALED COFIRED

YES

4

CMOS

MIL-PRF-38535 Class V

2

3

3.3/5

50 pF

FLATPACK

FL16,.3

11 ns

12 Amp

Multiplexer/Demultiplexer

1.27 mm

125 Cel

3-STATE

-55 Cel

DUAL

R-CDFP-F16

1

6 V

Qualified

TRUE

2 V

1

AC

5962-8512401VFC

STMicroelectronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC

YES

4

CMOS

38535V;38534K;883S

2

2/6

50 pF

FLATPACK

FL16,.3

6 Amp

Multiplexer/Demultiplexers

1.27 mm

125 Cel

3-STATE

-55 Cel

GOLD

DUAL

R-XDFP-F16

Not Qualified

e4

5962-8972901VXC

STMicroelectronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

4

CMOS

MIL-PRF-38535 Class V

2

4.5

3.3/5

50 pF

FLATPACK

FL16,.3

11 ns

24 Amp

Multiplexer/Demultiplexers

1.27 mm

125 Cel

-55 Cel

GOLD

DUAL

R-CDFP-F16

5.5 V

Not Qualified

INVERTED

3 V

e4

1

AC

RHFAC157K1

STMicroelectronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

300k Rad(Si)

CERAMIC, METAL-SEALED COFIRED

YES

4

CMOS

MIL-PRF-38535 Class V

2

TR

3

FLATPACK

FL16,.3

1.27 mm

150 Cel

-55 Cel

DUAL

R-CDFP-F16

6 V

2.38 mm

6.91 mm

TRUE

2 V

1

9.94 mm

AC

5962-8875502VXC

STMicroelectronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

4

CMOS

MIL-PRF-38535 Class V

2

5

5

50 pF

FLATPACK

FL16,.3

9.5 ns

24 Amp

Multiplexer/Demultiplexers

1.27 mm

125 Cel

-55 Cel

GOLD

DUAL

R-CDFP-F16

5.5 V

Not Qualified

INVERTED

4.5 V

e4

1

ACT

M54HC157K

STMicroelectronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

50k Rad(Si)

CERAMIC, METAL-SEALED COFIRED

YES

4

CMOS

2

4.5

2/6

50 pF

FLATPACK

FL16,.3

150 ns

4 Amp

Multiplexer/Demultiplexers

1.27 mm

125 Cel

-55 Cel

TIN LEAD

DUAL

R-CDFP-F16

6 V

2.38 mm

6.91 mm

Not Qualified

TRUE

2 V

e0

1

9.94 mm

HC/UH

5962F8953901VXX

STMicroelectronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

4

CMOS

2

3

FLATPACK

11 ns

125 Cel

-55 Cel

DUAL

R-CDFP-F16

6 V

Qualified

TRUE

2 V

1

AC

5962-8968802XA

STMicroelectronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

4

CMOS

MIL-STD-883

2

5

5

50 pF

FLATPACK

FL16,.3

11 ns

24 Amp

Multiplexer/Demultiplexers

1.27 mm

125 Cel

-55 Cel

TIN LEAD

DUAL

R-CDFP-F16

5.5 V

Not Qualified

TRUE

4.5 V

e0

1

ACT

5962-8968802QXA

STMicroelectronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

4

CMOS

MIL-PRF-38535 Class Q

2

5

FLATPACK

11 ns

125 Cel

-55 Cel

TIN LEAD

DUAL

R-CDFP-F16

5.5 V

Not Qualified

TRUE

4.5 V

e0

1

ACT

5962F8968802XC

STMicroelectronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

300k Rad(Si)

CERAMIC, METAL-SEALED COFIRED

YES

4

CMOS

MIL-STD-883

2

5

5

50 pF

FLATPACK

FL16,.3

11 ns

24 Amp

Multiplexer/Demultiplexer

1.27 mm

125 Cel

-55 Cel

DUAL

R-CDFP-F16

1

5.5 V

Qualified

TRUE

4.5 V

1

ACT

5962F8769102VYC

STMicroelectronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

300k Rad(Si)

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

MIL-PRF-38535 Class V

8

3

FLATPACK

FL16,.3

1.27 mm

150 Cel

-55 Cel

DUAL

R-CDFP-F16

6 V

2.38 mm

6.91 mm

Qualified

COMPLEMENTARY

2 V

1

9.94 mm

AC

5962-8968802QXC

STMicroelectronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

4

CMOS

MIL-PRF-38535 Class Q

2

5

FLATPACK

11 ns

125 Cel

-55 Cel

GOLD

DUAL

R-CDFP-F16

5.5 V

Not Qualified

TRUE

4.5 V

e4

1

ACT

N54F157A/BFA

NXP Semiconductors

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

4

TTL

2

5

50 pF

FLATPACK

9.5 ns

1.27 mm

125 Cel

-55 Cel

DUAL

R-CDFP-F16

5.5 V

2.159 mm

6.731 mm

Not Qualified

TRUE

4.5 V

23 mA

1

11.176 mm

F/FAST

N54F253/BFA

NXP Semiconductors

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

2

TTL

4

5

50 pF

FLATPACK

14 ns

1.27 mm

125 Cel

3-STATE

-55 Cel

DUAL

R-CDFP-F16

5.5 V

2.159 mm

6.731 mm

Not Qualified

TRUE

4.5 V

23 mA

1

11.176 mm

F/FAST

5962-3830902BFX

NXP Semiconductors

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, GLASS-SEALED

YES

2

TTL

4

5

FLATPACK

65 ns

125 Cel

-55 Cel

DUAL

R-GDFP-F16

5.5 V

Not Qualified

TRUE

4.5 V

1

LS

54F253/BFA

NXP Semiconductors

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

2

TTL

4

5

50 pF

FLATPACK

14 ns

125 Cel

3-STATE

-55 Cel

DUAL

R-CDFP-F16

5.5 V

Not Qualified

TRUE

4.5 V

23 mA

1

F/FAST

N54F158A/BFA

NXP Semiconductors

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

4

TTL

2

5

50 pF

FLATPACK

10 ns

1.27 mm

125 Cel

-55 Cel

DUAL

R-CDFP-F16

5.5 V

2.159 mm

6.731 mm

Not Qualified

INVERTED

4.5 V

15 mA

1

11.176 mm

F/FAST

54F158A/BFA

NXP Semiconductors

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

4

TTL

2

5

50 pF

FLATPACK

10 ns

125 Cel

-55 Cel

DUAL

R-CDFP-F16

5.5 V

Not Qualified

INVERTED

4.5 V

15 mA

1

F/FAST

54F157A/BFA

NXP Semiconductors

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

4

TTL

2

5

50 pF

FLATPACK

9.5 ns

125 Cel

-55 Cel

DUAL

R-CDFP-F16

5.5 V

Not Qualified

TRUE

4.5 V

23 mA

1

F/FAST

5962-3830907BFX

NXP Semiconductors

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, GLASS-SEALED

YES

4

TTL

2

5

FLATPACK

39 ns

125 Cel

3-STATE

-55 Cel

DUAL

R-GDFP-F16

5.5 V

Not Qualified

INVERTED

4.5 V

1

LS

M38510/33905BFX

NXP Semiconductors

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, GLASS-SEALED

YES

1

TTL

8

5

FLATPACK

9 ns

125 Cel

3-STATE

-55 Cel

DUAL

R-GDFP-F16

5.5 V

Not Qualified

COMPLEMENTARY

4.5 V

1

F/FAST

M38510/33905SFX

NXP Semiconductors

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, GLASS-SEALED

YES

1

TTL

8

5

FLATPACK

9 ns

125 Cel

3-STATE

-55 Cel

DUAL

R-GDFP-F16

5.5 V

Not Qualified

COMPLEMENTARY

4.5 V

1

F/FAST

M38510/33907BFX

NXP Semiconductors

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, GLASS-SEALED

YES

4

TTL

2

5

FLATPACK

7.5 ns

125 Cel

3-STATE

-55 Cel

DUAL

R-GDFP-F16

5.5 V

Not Qualified

INVERTED

4.5 V

1

F/FAST

M38510/07908BFA

NXP Semiconductors

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

UNSPECIFIED

YES

2

TTL

MIL-M-38510 Class B

4

5

FLATPACK

14.5 ns

125 Cel

3-STATE

-55 Cel

DUAL

R-XDFP-F16

5.5 V

Not Qualified

TRUE

4.5 V

1

S

M38510/07901SFA

NXP Semiconductors

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

UNSPECIFIED

YES

1

TTL

MIL-M-38510 Class S

8

5

FLATPACK

18 ns

125 Cel

-55 Cel

DUAL

R-XDFP-F16

5.5 V

Not Qualified

COMPLEMENTARY

4.5 V

1

S

M38510/07901SFX

NXP Semiconductors

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

UNSPECIFIED

YES

1

TTL

MIL-M-38510 Class S

8

5

FLATPACK

18 ns

125 Cel

-55 Cel

DUAL

R-XDFP-F16

5.5 V

Not Qualified

COMPLEMENTARY

4.5 V

1

S

5962R9572801VXC

Renesas Electronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

8

5

FLATPACK

37 ns

1.27 mm

125 Cel

-55 Cel

GOLD

DUAL

R-CDFP-F16

5.5 V

2.92 mm

6.73 mm

Qualified

COMPLEMENTARY

4.5 V

e4

1

HC/UH

5962-01-151-1324

Renesas Electronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC

YES

1

CMOS

8

5/15

50 pF

FLATPACK

FL16,.3

.36 Amp

Multiplexer/Demultiplexers

1.27 mm

125 Cel

3-STATE

-55 Cel

DUAL

R-XDFP-F16

Not Qualified

HCTS157K/SAMPLE

Renesas Electronics

MULTIPLEXER

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

4

CMOS

2

5

FLATPACK

26 ns

1.27 mm

DUAL

R-CDFP-F16

5.5 V

2.92 mm

6.73 mm

Not Qualified

TRUE

4.5 V

1

HCT

HCTS157KMSR

Renesas Electronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

200k Rad(Si)

CERAMIC, METAL-SEALED COFIRED

YES

4

CMOS

MIL-PRF-38535 Class V

2

5

5

50 pF

FLATPACK

FL16,.3

30 ns

6 Amp

Multiplexer/Demultiplexers

1.27 mm

125 Cel

-55 Cel

TIN LEAD

DUAL

R-CDFP-F16

5.5 V

2.92 mm

6.73 mm

Not Qualified

TRUE

4.5 V

e0

1

HCT

5962-01-377-4987

Renesas Electronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC

YES

1

CMOS

38535Q/M;38534H;883B

8

5/15

50 pF

FLATPACK

FL16,.3

.36 Amp

Multiplexer/Demultiplexers

1.27 mm

125 Cel

3-STATE

-55 Cel

DUAL

R-XDFP-F16

Not Qualified

HCS157KMSR

Renesas Electronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

200k Rad(Si)

CERAMIC, METAL-SEALED COFIRED

YES

4

CMOS

MIL-PRF-38535 Class V

2

5

5

50 pF

FLATPACK

FL16,.3

30 ns

Multiplexer/Demultiplexers

1.27 mm

125 Cel

-55 Cel

MATTE TIN

DUAL

R-CDFP-F16

5.5 V

2.92 mm

6.73 mm

Not Qualified

TRUE

4.5 V

e3

1

HC/UH

5962R9572801VXX

Renesas Electronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

8

5

FLATPACK

37 ns

1.27 mm

125 Cel

-55 Cel

DUAL

R-CDFP-F16

5.5 V

2.92 mm

6.73 mm

Qualified

COMPLEMENTARY

4.5 V

1

HC/UH

HCS151KMSR

Renesas Electronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

100k Rad(Si)

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

MIL-PRF-38535 Class V

8

TRAY

5

FLATPACK

27 ns

1.27 mm

125 Cel

-55 Cel

GOLD

DUAL

R-CDFP-F16

5.5 V

2.92 mm

6.73 mm

Not Qualified

COMPLEMENTARY

4.5 V

e4

1

HC/UH

HCS157K/SAMPLE

Renesas Electronics

MULTIPLEXER

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

4

CMOS

2

5

FLATPACK

30 ns

1.27 mm

DUAL

R-CDFP-F16

5.5 V

2.92 mm

6.73 mm

Not Qualified

TRUE

4.5 V

1

HC/UH

HCS151K/SAMPLE

Renesas Electronics

MULTIPLEXER

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

8

5

FLATPACK

27 ns

1.27 mm

DUAL

R-CDFP-F16

5.5 V

2.92 mm

6.73 mm

Not Qualified

COMPLEMENTARY

4.5 V

1

HC/UH

HCTS153K/SAMPLE

Renesas Electronics

MULTIPLEXER

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

2

CMOS

4

5

FLATPACK

30 ns

1.27 mm

DUAL

R-CDFP-F16

5.5 V

2.92 mm

6.73 mm

Not Qualified

TRUE

4.5 V

1

HCT

HCTS153KMSR

Renesas Electronics

MULTIPLEXER

MILITARY

FLAT

16

DFP

RECTANGULAR

200k Rad(Si)

CERAMIC, METAL-SEALED COFIRED

YES

2

CMOS

MIL-PRF-38535 Class V

4

5

5

50 pF

FLATPACK

FL16,.3

34 ns

4 Amp

Multiplexer/Demultiplexers

1.27 mm

125 Cel

-55 Cel

DUAL

R-CDFP-F16

5.5 V

2.92 mm

6.73 mm

Not Qualified

TRUE

4.5 V

NOT SPECIFIED

1

NOT SPECIFIED

HCT

Multiplexer & Demultiplexer

Multiplexers and demultiplexers are electronic circuits that are used to transmit and receive multiple signals over a single channel. They are essential components of digital systems and are used to reduce the number of transmission lines required to transmit multiple signals.

A multiplexer, also known as a mux, is a digital circuit that can select one of several input signals and transmit it to a single output line based on a control signal. A multiplexer can have two or more inputs and a single output, and the selection of the input is determined by the binary value of the control signal. Multiplexers are used to reduce the number of transmission lines required to transmit multiple signals over a long distance.

A demultiplexer, also known as a demux, is a digital circuit that can distribute a single input signal to one of several output lines based on a control signal. A demultiplexer can have a single input and two or more outputs, and the selection of the output is determined by the binary value of the control signal. Demultiplexers are used to receive multiple signals transmitted over a single line.

Multiplexers and demultiplexers are commonly used together in digital systems to transmit and receive multiple signals over a single channel. They are used in various applications, including digital signal processing, telecommunications, and data storage systems. Multiplexers and demultiplexers are also used in memory systems to store and retrieve data from memory cells.

Multiplexers and demultiplexers can be designed using various technologies, including transistor-transistor logic (TTL), complementary metal-oxide-semiconductor (CMOS), and field-programmable gate arrays (FPGAs). They can also be cascaded together to increase the number of inputs or outputs.