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. 539-9383
Mfr. Part No.TC74HC42AP(F)
BrandToshiba
MYR1.988
Each (In a Pack of 5)
units
HC Decoder, Demultiplexer 1-of-10 1 0 - Inverting Through Hole PDIP 16 19.25 x 6.4 x 3.5mm 3.5mm 19.25mm 6 V
RS Stock No. 709-2413
Mfr. Part No.CD74HCT139E
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. 186-9148
Mfr. Part No.74AC138MTC
MYR1.574
Each (In a Pack of 25)
units
AC Decoder, Demultiplexer 1-of-8 - - - - Surface Mount TSSOP 16 5 x 4.5 x 0.95mm 0.95mm 5mm 6 V
RS Stock No. 807-2466
Mfr. Part No.CD74HC4511E
MYR2.88
Each (In a Pack of 25)
units
HC Decoder, Driver - 1 4 CMOS Non-Inverting Through Hole PDIP 16 19.69 x 6.6 x 4.57mm 4.57mm 19.69mm 6 V
RS Stock No. 186-9207
Mfr. Part No.74ACT139MTC
MYR2.24
Each (In a Pack of 25)
units
ACT Decoder, Demultiplexer 1-of-4 - 2 - - Surface Mount TSSOP 16 5 x 4.5 x 0.95mm 0.95mm 5mm 5.5 V
RS Stock No. 186-9220
Mfr. Part No.MC74HC238ADTG
MYR1.234
Each (In a Pack of 25)
units
HC Decoder, Demultiplexer 1-of-8 - - CMOS - Surface Mount TSSOP 16 5.1 x 4.5 x 1.05mm 1.05mm 5.1mm 6 V dc
RS Stock No. 170-7997
Mfr. Part No.74HCT4051D,118
BrandNexperia
MYR0.666
Each (On a Reel of 2500)
units
74HCT Demultiplexer, Multiplexer 1-of-8 1 3 Single Ended Non-Inverting Surface Mount SO 16 10 x 4 x 1.45mm 1.45mm 10mm 5.5 V
RS Stock No. 145-7572
Mfr. Part No.SN74LVC1G18DBVR
MYR0.397
Each (On a Reel of 3000)
units
LVC Demultiplexer 1-of-2 1 1 3 State Non-Inverting Surface Mount SOT-23 6 2.9 x 1.6 x 1.15mm 1.15mm 2.9mm 5.5 V
RS Stock No. 170-7966
Mfr. Part No.74HC4051D,653
BrandNexperia
MYR0.421
Each (On a Reel of 2500)
units
74HC Demultiplexer, Multiplexer 1-of-8 1 3 Single Ended Non-Inverting Surface Mount SO 16 10 x 4 x 1.45mm 1.45mm 10mm 10 V
RS Stock No. 170-8037
Mfr. Part No.74HC4051PW-Q100,11
BrandNexperia
MYR0.718
Each (On a Reel of 2500)
units
74HC Demultiplexer, Multiplexer 1-of-8 1 3 Single Ended Non-Inverting Surface Mount TSSOP 16 5.1 x 4.5 x 0.95mm 0.95mm 5.1mm 10 V
RS Stock No. 170-7991
Mfr. Part No.74HC4053D,653
BrandNexperia
MYR0.544
Each (On a Reel of 2500)
units
74HC Demultiplexer, Multiplexer 1-of-2 5 2 Single Ended Inverting Surface Mount SO 16 10 x 4 x 1.45mm 1.45mm 10mm 10 V
RS Stock No. 170-7982
Mfr. Part No.74HC4051PW,118
BrandNexperia
MYR0.412
Each (On a Reel of 2500)
units
74HC Demultiplexer, Multiplexer 1-of-8 1 3 Single Ended Non-Inverting Surface Mount TSSOP 16 5.1 x 4.5 x 0.95mm 0.95mm 5.1mm 10 V
RS Stock No. 756-3249
Mfr. Part No.TC7MB3253FK(EL)
BrandToshiba
MYR12.166
Each (In a Pack of 5)
units
- Demultiplexer 1-of-4 14 1 - Inverting Surface Mount VSSOP 16 4.25 x 3 x 0.8mm 0.8mm 4.25mm 5.5 V
RS Stock No. 662-8755
Mfr. Part No.SN74LVC1G18DBVR
MYR1.12
Each (In a Pack of 10)
units
LVC Demultiplexer 1-of-2 1 1 3 State Non-Inverting Surface Mount SOT-23 6 2.9 x 1.6 x 1.15mm 1.15mm 2.9mm 5.5 V
RS Stock No. 163-0511
Mfr. Part No.MC10EP56DTG
MYR37.34
Each (In a Tube of 75)
units
ECL Multiplexer 1-of-2 4 2 ECL - Surface Mount TSSOP 20 6.6 x 4.5 x 1.05mm 1.05mm 6.6mm 5.5 V
RS Stock No. 146-0557
Mfr. Part No.74LVC1G18GW,125
BrandNexperia
MYR0.389
Each (On a Reel of 3000)
units
74LVC Demultiplexer 1-of-2 1 1 3 State Non-Inverting Surface Mount SC-88 6 2.2 x 1.35 x 1mm 1mm 2.2mm 5.5 V
RS Stock No. 301-432
Mfr. Part No.CD74HCT138E
MYR2.79
Each
units
HCT Decoder, Demultiplexer 1-of-8 1 3 - Inverting Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 4.57mm 19.3mm 5.5 V
RS Stock No. 186-8795
Mfr. Part No.74AC139SC
MYR2.256
Each (In a Tube of 48)
units
AC Decoder, Demultiplexer 1-of-4 - - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 1.5mm 10mm 6 V
RS Stock No. 860-7296
Mfr. Part No.M74HC151YRM13TR
MYR1.45
Each (In a Pack of 20)
units
HC Multiplexer 1 x 8:1 8 1 CMOS - Surface Mount SOIC 16 10 x 4 x 1.65mm 1.65mm 10mm 6 V
RS Stock No. 186-8869
Mfr. Part No.MC74HC238ADTG
MYR1.146
Each (In a Tube of 96)
units
HC Decoder, Demultiplexer 1-of-8 - - CMOS - Surface Mount TSSOP 16 5.1 x 4.5 x 1.05mm 1.05mm 5.1mm 6 V dc
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