Decoders & Demultiplexers

The difference between decoders and demultiplexers is that demultiplexers select an output line. A decoder takes in inputs and uses those inputs to determine which of the 2N outputs lines is high.

Decoder:
digital circuit that converts an input binary code into a single numeric output
binary code input
only one output activated at a time
A decoder has:
N inputs
2N outputs
A decoder selects one of 2N outputs by decoding the binary value on the N inputs. The decoder generates all of the minterms of the N input variables. Exactly one output will be active for each combination of the inputs.
Demultiplexer (demux):
receives the output signals from the multiplexer and the receiver end it converts them back to the original form

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Description Price Logic Family Logic Function Demultiplexing Capability Number of Elements per Chip Number of Input Enables per Element Output Type Polarity Mounting Type Package Type Pin Count Dimensions Height Length Maximum Operating Supply Voltage
RS Stock No. 145-0668
Mfr. Part No.SN74LS42N
MYR5.816
Each (In a Tube of 25)
units
LS Decoder, Demultiplexer 1-of-10 1 - - Inverting Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 5.25 V
RS Stock No. 307-575
Mfr. Part No.SN74LS42N
MYR8.90
Each
units
LS Decoder, Demultiplexer 1-of-10 1 - - Inverting Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 5.25 V
RS Stock No. 307-581
Mfr. Part No.SN74LS47N
MYR6.84
Each
units
LS Decoder, Driver - 1 - Open Collector Inverting Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 5.25 V
RS Stock No. 923-2344
Mfr. Part No.SN74LS47N
MYR5.833
Each (In a Tube of 25)
units
LS Decoder, Driver - 1 - Open Collector Inverting Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 5.25 V
RS Stock No. 145-6103
Mfr. Part No.SN7445N
MYR7.366
Each (In a Tube of 25)
units
74 Decoder, Driver 1-of-10 1 - - Inverting Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 5.25 V
RS Stock No. 304-065
Mfr. Part No.SN7445N
MYR11.45
Each
units
74 Decoder, Driver 1-of-10 1 - - Inverting Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 5.25 V
RS Stock No. 305-406
Mfr. Part No.SN7447AN
MYR12.24
Each
units
74 Decoder, Driver - 1 - Open Collector Inverting Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 5.25 V
RS Stock No. 539-9383
Mfr. Part No.TC74HC42AP(F)
BrandToshiba
MYR2.558
Each (In a Pack of 5)
units
HC Decoder, Demultiplexer 1-of-10 1 - - Inverting Through Hole PDIP 16 19.25 x 6.4 x 3.5mm 3.5mm 19.25mm 6 V
RS Stock No. 368-4724
Mfr. Part No.SN7447AN
MYR10.48
Each (In a Tube of 25)
units
74 Decoder, Driver - 1 - Open Collector Inverting Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 5.25 V
RS Stock No. 304-942
Mfr. Part No.SN74LS259BN
MYR4.26
Each
units
LS - - 1 1 - Non-Inverting Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 5.25 V
RS Stock No. 145-0381
Mfr. Part No.SN74LS259BN
MYR2.606
Each (In a Tube of 25)
units
LS - - 1 1 - Non-Inverting Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 5.25 V
RS Stock No. 368-6039
Mfr. Part No.SN74LS138N
MYR2.84
Each (In a Tube of 25)
units
LS Decoder, Demultiplexer 1-of-8 1 3 - Inverting Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 5.25 V
RS Stock No. 166-1721
Mfr. Part No.NC7SZ19P6X
MYR0.303
Each (On a Reel of 3000)
units
TinyLogic UHS Decoder, Demultiplexer 1-of-2 1 1 - Non-Inverting Surface Mount SC-70 6 2 x 1.25 x 1mm 1mm 2mm 5.5 V
RS Stock No. 739-5175
Mfr. Part No.NC7SZ19P6X
MYR0.834
Each (In a Pack of 5)
units
TinyLogic UHS Decoder, Demultiplexer 1-of-2 1 1 - Non-Inverting Surface Mount SC-70 6 2 x 1.25 x 1mm 1mm 2mm 5.5 V
RS Stock No. 303-624
Mfr. Part No.SN74LS145N
MYR4.23
Each
units
LS Decoder, Driver 1-of-10 1 - Open Collector Inverting Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 5.25 V
RS Stock No. 166-1282
Mfr. Part No.74HC137D,652
BrandNexperia
MYR1.406
Each (In a Tube of 50)
units
HC Decoder, Demultiplexer 1-of-8 1 1 - Inverting Surface Mount SOIC 16 10 x 4 x 1.45mm 1.45mm 10mm 6 V
RS Stock No. 483-6392
Mfr. Part No.74HC137D,652
BrandNexperia
MYR1.764
Each (In a Pack of 10)
units
HC Decoder, Demultiplexer 1-of-8 1 1 - Inverting Surface Mount SOIC 16 10 x 4 x 1.45mm 1.45mm 10mm 6 V
RS Stock No. 709-2413
Mfr. Part No.CD74HCT139EE4
MYR3.146
Each (In a Pack of 10)
units
HCT Decoder, Demultiplexer 1-of-4 2 1 - Inverting Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 5.5 V
RS Stock No. 162-4292
Mfr. Part No.SN74LS145N
MYR3.21
Each (In a Tube of 25)
units
LS Decoder, Driver 1-of-10 1 - Open Collector Inverting Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 5.25 V
RS Stock No. 443-047
Mfr. Part No.SN74HC139N
MYR1.68
Each
units
HC Decoder, Demultiplexer 1-of-4 2 1 - Inverting Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 6 V
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