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. 170-7966
Mfr. Part No.74HC4051D,653
BrandNexperia
€0.07
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. 186-8796
Mfr. Part No.74ACT139MTC
€0.462
Each (In a Tube of 96)
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. 860-7296
Mfr. Part No.M74HC151YRM13TR
€0.285
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. 186-9158
Mfr. Part No.74AC139SC
€0.434
Each (In a Pack of 25)
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. 662-8755
Mfr. Part No.SN74LVC1G18DBVR
€0.221
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. 162-4150
Mfr. Part No.CD74HCT138E
€0.469
Each (In a Tube of 25)
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. 186-9220
Mfr. Part No.MC74HC238ADTG
€0.232
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. 152-6476
Mfr. Part No.74LVC1G157GV-Q100H
BrandNexperia
€0.064
Each (On a Reel of 3000)
units
74LVC Multiplexer 2-of-1 1 2 CMOS, TTL Non-Inverting Surface Mount TSOP 6 3.1 x 1.7 x 1mm 1mm 3.1mm 5.5 V
RS Stock No. 163-0511
Mfr. Part No.MC10EP56DTG
€7.554
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. 186-8795
Mfr. Part No.74AC139SC
€0.434
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. 186-9207
Mfr. Part No.74ACT139MTC
€0.462
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. 186-8869
Mfr. Part No.MC74HC238ADTG
€0.231
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
RS Stock No. 170-7997
Mfr. Part No.74HCT4051D,118
BrandNexperia
€0.075
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. 166-3190
Mfr. Part No.NC7SZ18P6X
€0.047
Each (On a Reel of 3000)
units
TinyLogic UHS Demultiplexer 1-of-2 2 1 3 State Non-Inverting Surface Mount SC-70 6 2 x 1.25 x 1mm 1mm 2mm 5.5 V
RS Stock No. 170-7999
Mfr. Part No.HEF4053BT,653
BrandNexperia
€0.107
Each (On a Reel of 2500)
units
HEF Demultiplexer, Multiplexer 1-of-2 3 3 Single Ended Non-Inverting Surface Mount SO 16 10 x 4 x 1.45mm 1.45mm 10mm 15 V
RS Stock No. 806-1075
Mfr. Part No.NC7SZ18P6X
€0.044
Each (In a Pack of 25)
units
TinyLogic UHS Demultiplexer 1-of-2 2 1 3 State Non-Inverting Surface Mount SC-70 6 2 x 1.25 x 1mm 1mm 2mm 5.5 V
RS Stock No. 808-4019
Mfr. Part No.MC10EP56DTG
€8.86
Each
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. 880-5282
Mfr. Part No.HCF4051YM013TR
€0.261
Each (In a Pack of 50)
units
- - - - - - - Surface Mount SOIC 16 10 x 4 x 1.65mm 1.65mm 10mm -
RS Stock No. 662-8758
Mfr. Part No.SN74LVC1G18DCKR
€0.215
Each (In a Pack of 10)
units
LVC Demultiplexer 1-of-2 1 1 3 State Non-Inverting Surface Mount SC-70 6 2 x 1.25 x 0.9mm 0.9mm 2mm 5.5 V
RS Stock No. 186-9382
Mfr. Part No.MC74HCT138ADG
€0.335
Each (In a Pack of 25)
units
HCT Decoder, Demultiplexer 1-of-8 - - TTL - Surface Mount SOIC 16 10 x 4 x 1.5mm 1.5mm 10mm 6 V dc
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