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. 178-6970
Mfr. Part No.HEF4543BT,652
BrandNexperia
$0.801
Each (In a Tube of 50)
units
4000 Decoder, Driver - 1 1 - Non-Inverting Surface Mount SOIC 16 10 x 4 x 1.45mm 1.45mm 10mm 15 V
RS Stock No. 355-9460
Mfr. Part No.HEF4543BT,652
BrandNexperia
$0.98
Each
units
4000 Decoder, Driver - 1 1 - Non-Inverting Surface Mount SOIC 16 10 x 4 x 1.45mm 1.45mm 10mm 15 V
RS Stock No. 368-7329
Mfr. Part No.HEF4028BT,652
BrandNexperia
$0.512
Each (In a Tube of 50)
units
4000 Decoder, Demultiplexer 1-of-10 1 - - Non-Inverting Surface Mount SOIC 16 10 x 4 x 1.45mm 1.45mm 10mm 15 V
RS Stock No. 443-031
Mfr. Part No.SN74HC138N
$0.69
Each
units
HC Decoder, Demultiplexer 1-of-8 1 3 - Inverting Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 6 V
RS Stock No. 922-2903
Mfr. Part No.CD4511BEE4
$0.699
Each (In a Tube of 25)
units
4000 Decoder, Driver - 1 1 - Non-Inverting Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 18 V
RS Stock No. 662-9698
Mfr. Part No.CD4511BE
$0.946
Each (In a Pack of 5)
units
4000 Decoder, Driver - 1 1 - Non-Inverting Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 18 V
RS Stock No. 809-6220
Mfr. Part No.CD4511BPW
$0.652
Each (In a Pack of 15)
units
4000 Decoder 4-of-7 1 4 CMOS Non-Inverting Surface Mount TSSOP 16 5.1 x 4.5 x 1.05mm 1.05mm 5.1mm 18 V
RS Stock No. 709-2160
Mfr. Part No.SN74LS247N
$1.84
Each (In a Pack of 5)
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. 121-9249
Mfr. Part No.SN74LS247N
$2.57
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. 923-2486
Mfr. Part No.SN74HC138N
$0.562
Each (In a Tube of 25)
units
HC Decoder, Demultiplexer 1-of-8 1 3 - Inverting Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 6 V
RS Stock No. 162-6504
Mfr. Part No.CD4511BPW
$0.652
Each (In a Tube of 90)
units
4000 Decoder 4-of-7 1 4 CMOS Non-Inverting Surface Mount TSSOP 16 5.1 x 4.5 x 1.05mm 1.05mm 5.1mm 18 V
RS Stock No. 144-9900
Mfr. Part No.SN74HC139N
$0.655
Each (In a Tube of 25)
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
RS Stock No. 709-2655
Mfr. Part No.SN74LS155AN
$2.55
Each (In a Pack of 5)
units
LS Decoder, Demultiplexer 1-of-4, 1-of-8 1, 2 2 Push-Pull Inverting Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 5.25 V
RS Stock No. 368-4724
Mfr. Part No.SN7447AN
$4.33
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. 145-0040
Mfr. Part No.CD4515BM
$0.815
Each (In a Tube of 25)
units
CD4000 Decoder, Demultiplexer 1-of-16 1 4 - Inverting Surface Mount SOIC 24 15.6 x 7.6 x 2.35mm 2.35mm 15.6mm 18 V
RS Stock No. 162-7411
Mfr. Part No.SN74LS155AN
$2.18
Each (In a Tube of 25)
units
LS Decoder, Demultiplexer 1-of-4, 1-of-8 1, 2 2 Push-Pull Inverting Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 5.25 V
RS Stock No. 796-7953
Mfr. Part No.CD4515BM
$1.595
Each (In a Pack of 25)
units
CD4000 Decoder, Demultiplexer 1-of-16 1 4 - Inverting Surface Mount SOIC 24 15.6 x 7.6 x 2.35mm 2.35mm 15.6mm 18 V
RS Stock No. 483-6421
Mfr. Part No.74HC154D,652
BrandNexperia
$1.36
Each (In a Pack of 5)
units
HC Decoder, Demultiplexer 1-of-16 1 2 - Inverting Surface Mount SOIC 24 15.6 x 7.6 x 2.45mm 2.45mm 15.6mm 6 V
RS Stock No. 305-406
Mfr. Part No.SN7447AN
$5.42
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. 368-6039
Mfr. Part No.SN74LS138N
$1.116
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
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