DFP Digital Arithmetic Circuits 436

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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 Bits 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 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

M54HC688K1

STMicroelectronics

IDENTITY COMPARATOR

MILITARY

FLAT

20

DFP

SQUARE

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

8

TR

4.5

2/6

FLATPACK

FL20,.4

255 ns

Arithmetic Circuits

1.27 mm

125 Cel

-55 Cel

TIN LEAD

DUAL

S-CDFP-F20

6 V

2.33 mm

10.16 mm

Not Qualified

INVERTED

2 V

e0

10.16 mm

HC/UH

HCC4063BKT

STMicroelectronics

MAGNITUDE COMPARATOR

FLAT

16

DFP

RECTANGULAR

100k Rad(Si)

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

4

STRIP PACK

5

FLATPACK

FL16,.3

1.27 mm

125 Cel

-55 Cel

DUAL

R-CDFP-F16

20 V

2.38 mm

6.91 mm

3 V

SEATED HGT CALCULATED

9.94 mm

4000/14000/40000

5962F9098503VYC

STMicroelectronics

IDENTITY COMPARATOR

MILITARY

FLAT

20

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

MIL-PRF-38535 Class V

8

3

FLATPACK

FL20,.3

1.27 mm

150 Cel

-55 Cel

DUAL

R-CDFP-F20

6 V

2.21 mm

7.115 mm

Qualified

INVERTED

2 V

12.955 mm

AC

5962-9220102VXX

STMicroelectronics

PARITY GENERATOR/CHECKER

MILITARY

FLAT

14

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

9

4.5

FLATPACK

20 ns

125 Cel

-55 Cel

DUAL

R-CDFP-F14

5.5 V

Not Qualified

INVERTED

3 V

AC

5962-9220102QXC

STMicroelectronics

PARITY GENERATOR/CHECKER

MILITARY

FLAT

14

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

MIL-PRF-38535 Class Q

9

4.5

3.3/5

FLATPACK

FL14,.3

20 ns

Arithmetic Circuits

1.27 mm

125 Cel

-55 Cel

GOLD

DUAL

R-CDFP-F14

5.5 V

Not Qualified

INVERTED

3 V

e4

AC

5962-8976501FA

STMicroelectronics

ADDER/SUBTRACTOR

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC

YES

CMOS

38535Q/M;38534H;883B

2/6

FLATPACK

FL16,.3

Arithmetic Circuits

1.27 mm

125 Cel

-55 Cel

TIN LEAD

DUAL

R-XDFP-F16

Not Qualified

e0

5962F9098503VXX

STMicroelectronics

IDENTITY COMPARATOR

MILITARY

FLAT

20

DFP

RECTANGULAR

300k Rad(Si)

UNSPECIFIED

YES

1

CMOS

MIL-PRF-38535 Class V

8

4.5

FLATPACK

17.5 ns

1.27 mm

125 Cel

-55 Cel

DUAL

R-XDFP-F20

5.5 V

2.21 mm

7.115 mm

Qualified

INVERTED

3 V

12.955 mm

AC

5962-8976501VXX

STMicroelectronics

ADDER/SUBTRACTOR

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

4

4.5

FLATPACK

345 ns

125 Cel

-55 Cel

DUAL

R-CDFP-F16

6 V

Not Qualified

TRUE

2 V

HC/UH

5962-8601301VFA

STMicroelectronics

MAGNITUDE COMPARATOR

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, GLASS-SEALED

YES

1

CMOS

MIL-PRF-38535 Class V

4

4.5

2/6

FLATPACK

FL16,.3

295 ns

Arithmetic Circuits

1.27 mm

125 Cel

-55 Cel

TIN LEAD

DUAL

R-GDFP-F16

6 V

Not Qualified

TRUE

2 V

e0

HC/UH

5962-8601301VFC

STMicroelectronics

MAGNITUDE COMPARATOR

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, GLASS-SEALED

YES

1

CMOS

MIL-PRF-38535 Class V

4

4.5

2/6

FLATPACK

FL16,.3

295 ns

Arithmetic Circuits

1.27 mm

125 Cel

-55 Cel

GOLD

DUAL

R-GDFP-F16

6 V

Not Qualified

TRUE

2 V

e4

HC/UH

5962-8601301VFX

STMicroelectronics

MAGNITUDE COMPARATOR

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, GLASS-SEALED

YES

1

CMOS

4

4.5

FLATPACK

295 ns

125 Cel

-55 Cel

DUAL

R-GDFP-F16

6 V

Not Qualified

TRUE

2 V

HC/UH

5962-8976501XA

STMicroelectronics

ADDER/SUBTRACTOR

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

MIL-STD-883

4

4.5

2/6

FLATPACK

FL16,.3

345 ns

Arithmetic Circuits

1.27 mm

125 Cel

-55 Cel

TIN LEAD

DUAL

R-CDFP-F16

6 V

Not Qualified

TRUE

2 V

e0

HC/UH

5962F9098503VYA

STMicroelectronics

IDENTITY COMPARATOR

MILITARY

FLAT

20

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

MIL-PRF-38535 Class V

8

3

FLATPACK

FL20,.3

1.27 mm

150 Cel

-55 Cel

DUAL

R-CDFP-F20

6 V

2.21 mm

7.115 mm

Qualified

INVERTED

2 V

12.955 mm

AC

5962-8601301VXX

STMicroelectronics

MAGNITUDE COMPARATOR

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

4

4.5

FLATPACK

295 ns

125 Cel

-55 Cel

DUAL

R-CDFP-F16

6 V

Not Qualified

TRUE

2 V

HC/UH

5962-8601301VXA

STMicroelectronics

MAGNITUDE COMPARATOR

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

MIL-PRF-38535 Class V

4

4.5

2/6

FLATPACK

FL16,.3

295 ns

Arithmetic Circuits

1.27 mm

125 Cel

-55 Cel

TIN LEAD

DUAL

R-CDFP-F16

6 V

Not Qualified

TRUE

2 V

e0

HC/UH

5962-8976501VFA

STMicroelectronics

ADDER/SUBTRACTOR

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC

YES

CMOS

38535V;38534K;883S

2/6

FLATPACK

FL16,.3

Arithmetic Circuits

1.27 mm

125 Cel

-55 Cel

TIN LEAD

DUAL

R-XDFP-F16

Not Qualified

e0

5962-8976501VFC

STMicroelectronics

ADDER/SUBTRACTOR

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC

YES

CMOS

38535V;38534K;883S

2/6

FLATPACK

FL16,.3

Arithmetic Circuits

1.27 mm

125 Cel

-55 Cel

GOLD

DUAL

R-XDFP-F16

Not Qualified

e4

5962-9220102VXC

STMicroelectronics

PARITY GENERATOR/CHECKER

MILITARY

FLAT

14

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

MIL-PRF-38535 Class V

9

4.5

3.3/5

FLATPACK

FL14,.3

20 ns

Arithmetic Circuits

1.27 mm

125 Cel

-55 Cel

GOLD

DUAL

R-CDFP-F14

5.5 V

Not Qualified

INVERTED

3 V

e4

AC

5962-8601301VXC

STMicroelectronics

MAGNITUDE COMPARATOR

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

MIL-PRF-38535 Class V

4

4.5

2/6

FLATPACK

FL16,.3

295 ns

Arithmetic Circuits

1.27 mm

125 Cel

-55 Cel

GOLD

DUAL

R-CDFP-F16

6 V

Not Qualified

TRUE

2 V

e4

HC/UH

5962-9220102QXA

STMicroelectronics

PARITY GENERATOR/CHECKER

MILITARY

FLAT

14

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

MIL-PRF-38535 Class Q

9

4.5

3.3/5

FLATPACK

FL14,.3

20 ns

Arithmetic Circuits

1.27 mm

125 Cel

-55 Cel

TIN LEAD

DUAL

R-CDFP-F14

5.5 V

Not Qualified

INVERTED

3 V

e0

AC

5962-8976501XC

STMicroelectronics

ADDER/SUBTRACTOR

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

MIL-STD-883

4

4.5

2/6

FLATPACK

FL16,.3

345 ns

Arithmetic Circuits

1.27 mm

125 Cel

-55 Cel

GOLD

DUAL

R-CDFP-F16

6 V

Not Qualified

TRUE

2 V

e4

HC/UH

5962-8976501VXA

STMicroelectronics

ADDER/SUBTRACTOR

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

MIL-PRF-38535 Class V

4

4.5

2/6

FLATPACK

FL16,.3

345 ns

Arithmetic Circuits

1.27 mm

125 Cel

-55 Cel

TIN LEAD

DUAL

R-CDFP-F16

6 V

Not Qualified

TRUE

2 V

e0

HC/UH

5962-9220102VXA

STMicroelectronics

PARITY GENERATOR/CHECKER

MILITARY

FLAT

14

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

MIL-PRF-38535 Class V

9

4.5

3.3/5

FLATPACK

FL14,.3

20 ns

Arithmetic Circuits

1.27 mm

125 Cel

-55 Cel

TIN LEAD

DUAL

R-CDFP-F14

5.5 V

Not Qualified

INVERTED

3 V

e0

AC

5962-8976501VXC

STMicroelectronics

ADDER/SUBTRACTOR

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

MIL-PRF-38535 Class V

4

4.5

2/6

FLATPACK

FL16,.3

345 ns

Arithmetic Circuits

1.27 mm

125 Cel

-55 Cel

GOLD

DUAL

R-CDFP-F16

6 V

Not Qualified

TRUE

2 V

e4

HC/UH

5962-8976501FC

STMicroelectronics

ADDER/SUBTRACTOR

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC

YES

CMOS

38535Q/M;38534H;883B

2/6

FLATPACK

FL16,.3

Arithmetic Circuits

1.27 mm

125 Cel

-55 Cel

GOLD

DUAL

R-XDFP-F16

Not Qualified

e4

5962-9220102QXX

STMicroelectronics

PARITY GENERATOR/CHECKER

MILITARY

FLAT

14

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

9

4.5

FLATPACK

20 ns

125 Cel

-55 Cel

DUAL

R-CDFP-F14

5.5 V

Not Qualified

INVERTED

3 V

AC

5962F9098503VXA

STMicroelectronics

IDENTITY COMPARATOR

MILITARY

FLAT

20

DFP

RECTANGULAR

300k Rad(Si)

CERAMIC

YES

CMOS

38535V;38534K;883S

3.3/5

FLATPACK

FL20,.3

Arithmetic Circuits

1.27 mm

125 Cel

-55 Cel

DUAL

R-XDFP-F20

Qualified

5962-8976501XX

STMicroelectronics

ADDER/SUBTRACTOR

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

4

4.5

FLATPACK

345 ns

125 Cel

-55 Cel

DUAL

R-CDFP-F16

6 V

Not Qualified

TRUE

2 V

HC/UH

5962F9098503VXC

STMicroelectronics

IDENTITY COMPARATOR

MILITARY

FLAT

20

DFP

RECTANGULAR

300k Rad(Si)

CERAMIC

YES

CMOS

38535V;38534K;883S

3.3/5

FLATPACK

FL20,.3

Arithmetic Circuits

1.27 mm

125 Cel

-55 Cel

DUAL

R-XDFP-F20

Qualified

M38510/34901BDA

NXP Semiconductors

PARITY GENERATOR/CHECKER

MILITARY

FLAT

14

DFP

RECTANGULAR

CERAMIC, GLASS-SEALED

YES

1

TTL

MIL-PRF-38535 Class B

9

5

FLATPACK

21 ns

125 Cel

-55 Cel

DUAL

R-GDFP-F14

5.5 V

Not Qualified

INVERTED

4.5 V

F/FAST

54F148/BFA

NXP Semiconductors

ENCODER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

TTL

8

5

50 pF

FLATPACK

13 ns

125 Cel

-55 Cel

DUAL

R-CDFP-F16

5.5 V

Not Qualified

4.5 V

35 mA

8 TO 3 LINE PRIORITY ENCODER; CASCADABLE; WITH GROUP SELECT OUTPUT

F/FAST

54F280A/BDA

NXP Semiconductors

PARITY GENERATOR/CHECKER

MILITARY

FLAT

14

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

TTL

9

5

50 pF

FLATPACK

17 ns

125 Cel

-55 Cel

DUAL

R-CDFP-F14

5.5 V

Not Qualified

COMPLEMENTARY

4.5 V

35 mA

ODD/EVEN PARITY GENERATOR

F/FAST

54F350/BFA

NXP Semiconductors

SHIFTER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

TTL

4

5

FLATPACK

6.5 ns

125 Cel

3-STATE

-55 Cel

DUAL

R-CDFP-F16

5.5 V

Not Qualified

4.5 V

WITH BARREL SHIFTING; THREE LINKING INPUTS FOR EXPANSION

F/FAST

54F280B/BDA

NXP Semiconductors

PARITY GENERATOR/CHECKER

MILITARY

FLAT

14

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

TTL

9

5

50 pF

FLATPACK

12 ns

125 Cel

-55 Cel

DUAL

R-CDFP-F14

5.5 V

Not Qualified

COMPLEMENTARY

4.5 V

35 mA

ODD/EVEN PARITY GENERATOR

F/FAST

54F181/BKA-T

NXP Semiconductors

ARITHMETIC LOGIC UNIT

MILITARY

FLAT

24

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

TTL

4

5

FLATPACK

18 ns

125 Cel

-55 Cel

DUAL

R-CDFP-F24

5.5 V

Not Qualified

4.5 V

CAPABLE OF 16 LOGIC & ARITHMETIC OPERATION; WITH INTERNAL CARRY LOOKAHEAD

F/FAST

54F181/BKA

NXP Semiconductors

ARITHMETIC LOGIC UNIT

MILITARY

FLAT

24

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

TTL

4

5

FLATPACK

18 ns

125 Cel

-55 Cel

DUAL

R-CDFP-F24

5.5 V

Not Qualified

4.5 V

CAPABLE OF 16 LOGIC & ARITHMETIC OPERATION; WITH INTERNAL CARRY LOOKAHEAD

F/FAST

54F350/BFA-T

NXP Semiconductors

SHIFTER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

TTL

4

5

FLATPACK

6.5 ns

125 Cel

3-STATE

-55 Cel

DUAL

R-CDFP-F16

5.5 V

Not Qualified

4.5 V

WITH BARREL SHIFTING; THREE LINKING INPUTS FOR EXPANSION

F/FAST

54F521/BSA

NXP Semiconductors

IDENTITY COMPARATOR

MILITARY

FLAT

20

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

TTL

8

5

50 pF

FLATPACK

12 ns

125 Cel

-55 Cel

DUAL

R-CDFP-F20

5.5 V

Not Qualified

INVERTED

4.5 V

36 mA

CASCADABLE

F/FAST

5962-8607001FA

NXP Semiconductors

ENCODER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

TTL

8

5

50 pF

FLATPACK

13 ns

125 Cel

-55 Cel

TIN LEAD

DUAL

R-CDFP-F16

5.5 V

Not Qualified

4.5 V

35 mA

8 TO 3 LINE PRIORITY ENCODER; CASCADABLE; WITH GROUP SELECT OUTPUT

e0

F/FAST

5962-3834901BDX

NXP Semiconductors

PARITY GENERATOR/CHECKER

MILITARY

FLAT

14

DFP

RECTANGULAR

CERAMIC, GLASS-SEALED

YES

1

TTL

9

5

FLATPACK

21 ns

125 Cel

-55 Cel

DUAL

R-GDFP-F14

5.5 V

Not Qualified

INVERTED

4.5 V

F/FAST

5962-3808201BEX

NXP Semiconductors

MAGNITUDE COMPARATOR

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, GLASS-SEALED

YES

1

TTL

4

5

FLATPACK

18 ns

2.54 mm

125 Cel

-55 Cel

DUAL

R-GDFP-F16

NOT APPLICABLE

5.5 V

5.08 mm

7.62 mm

Not Qualified

TRUE

4.5 V

CASCADABLE

NOT APPLICABLE

NOT APPLICABLE

19.56 mm

S

5962-8607001FX

NXP Semiconductors

ENCODER

MILITARY

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

TTL

8

5

FLATPACK

13 ns

125 Cel

-55 Cel

DUAL

R-CDFP-F16

5.5 V

Not Qualified

4.5 V

8 TO 3 LINE PRIORITY ENCODER; CASCADABLE; WITH GROUP SELECT OUTPUT

F/FAST

ACTS630K/SAMPLE

Renesas Electronics

ERROR DETECTION AND CORRECTION CIRCUIT

FLAT

28

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

16

5

FLATPACK

37 ns

1.27 mm

3-STATE

DUAL

R-CDFP-F28

5.5 V

2.92 mm

12.445 mm

Not Qualified

4.5 V

ACT

HCTS85K/SAMPLE

Renesas Electronics

MAGNITUDE COMPARATOR

FLAT

16

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

4

5

FLATPACK

57 ns

1.27 mm

DUAL

R-CDFP-F16

5.5 V

2.92 mm

6.73 mm

Not Qualified

TRUE

4.5 V

HCT

HCTS85KMSR

Renesas Electronics

MAGNITUDE COMPARATOR

MILITARY

FLAT

16

DFP

RECTANGULAR

200k Rad(Si)

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

MIL-PRF-38535 Class V

4

5

5

FLATPACK

FL16,.3

66 ns

Arithmetic Circuits

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

HCT

ACS630K/SAMPLE

Renesas Electronics

ERROR DETECTION AND CORRECTION CIRCUIT

FLAT

28

DFP

RECTANGULAR

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

16

5

FLATPACK

37 ns

1.27 mm

3-STATE

DUAL

R-CDFP-F28

5.5 V

2.92 mm

12.445 mm

Not Qualified

4.5 V

AC

CD40181BK

Renesas Electronics

ARITHMETIC LOGIC UNIT

MILITARY

FLAT

24

DFP

RECTANGULAR

CERAMIC

YES

CMOS

5/15

FLATPACK

FL24,.4

Arithmetic Circuits

1.27 mm

125 Cel

-55 Cel

DUAL

R-XDFP-F24

Not Qualified

5962R9675701VXX

Renesas Electronics

MAGNITUDE COMPARATOR

MILITARY

FLAT

16

DFP

RECTANGULAR

100k Rad(Si)

CERAMIC, METAL-SEALED COFIRED

YES

1

CMOS

MIL-PRF-38535 Class V

4

5

FLATPACK

1688 ns

125 Cel

-55 Cel

DUAL

R-CDFP-F16

18 V

Qualified

TRUE

3 V

4000/14000/40000

Digital Arithmetic Circuits

Digital arithmetic circuits are electronic circuits designed to perform arithmetic operations on digital signals. These circuits are essential components of digital systems, such as microprocessors, digital signal processors, and programmable logic devices.

Digital arithmetic circuits can perform various arithmetic operations, including addition, subtraction, multiplication, division, and modulo arithmetic. These operations are performed using binary arithmetic, where numbers are represented using the binary number system (0s and 1s).

Adders are one of the most commonly used digital arithmetic circuits. They are used to perform binary addition, where two binary numbers are added to produce a sum. Adders can be designed using various techniques, including ripple carry adders, carry look-ahead adders, and carry select adders.

Subtractors are also commonly used digital arithmetic circuits. They are used to perform binary subtraction, where one binary number is subtracted from another to produce a difference. Subtractors can be designed using techniques, including ripple borrow subtractors, borrow look-ahead subtractors, and borrow select subtractors.

Multiplexers and demultiplexers are digital circuits that can be used for various arithmetic operations, such as multiplication and division. Multiplexers can be used to select one of several input signals based on a control signal, while demultiplexers can be used to distribute a single input signal to several outputs based on a control signal.

Digital arithmetic circuits can also be designed using programmable logic devices, such as field-programmable gate arrays (FPGAs) and complex programmable logic devices (CPLDs). These devices can be programmed to implement various arithmetic operations and can be reprogrammed to adapt to changing system requirements.