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. 541-9314
Mfr. Part No.TC74HC42AF(F)
BrandToshiba
$0.90
Each (In a Pack of 5)
units
HC Decoder, Demultiplexer 1-of-10 1 0 - Inverting Surface Mount SOP 16 10.3 x 5.3 x 1.5mm 1.5mm 10.3mm 6 V
RS Stock No. 601-4083
Mfr. Part No.TC4511BF(F)
BrandToshiba
$1.992
Each (In a Pack of 5)
units
4000 Decoder, Driver - 1 1 - Non-Inverting Surface Mount SOP 16 10.3 x 5.3 x 1.5mm 1.5mm 10.3mm 18 V
RS Stock No. 539-9513
Mfr. Part No.TC74HC138AP(F)
BrandToshiba
$0.716
Each (In a Pack of 5)
units
HC Decoder, Demultiplexer 1-of-8 1 3 - Inverting Through Hole PDIP 16 19.25 x 6.4 x 3.5mm 3.5mm 19.25mm 6 V
RS Stock No. 541-9695
Mfr. Part No.TC4511BP(F)
BrandToshiba
$1.174
Each (In a Pack of 5)
units
4000 Decoder, Driver - 1 1 - Non-Inverting Through Hole PDIP 16 19.25 x 6.4 x 3.5mm 3.5mm 19.25mm 18 V
RS Stock No. 756-3277
Mfr. Part No.TC7MBL6353SFK(EL)
BrandToshiba
$1.044
Each (In a Pack of 5)
units
- Demultiplexer 1-of-2 10 2 - Inverting Surface Mount VSSOP 14 4.25 x 3 x 0.8mm 0.8mm 4.25mm 3.6 V
RS Stock No. 540-7759
Mfr. Part No.TC74HC138AF(F)
BrandToshiba
$1.406
Each (In a Pack of 5)
units
HC Decoder, Demultiplexer 1-of-8 1 3 - Inverting Surface Mount SOP 16 10.3 x 5.3 x 1.5mm 1.5mm 10.3mm 6 V
RS Stock No. 541-9847
Mfr. Part No.TC74AC138F(F)
BrandToshiba
$0.992
Each (In a Pack of 5)
units
AC Decoder, Demultiplexer 1-of-8 1 3 - Inverting Surface Mount SOP 16 10.3 x 5.3 x 1.5mm 1.5mm 10.3mm 5.5 V
RS Stock No. 539-8598
Mfr. Part No.TC74AC138P(F)
BrandToshiba
$1.368
Each (In a Pack of 5)
units
AC Decoder, Demultiplexer 1-of-8 1 3 - Inverting Through Hole PDIP 16 19.25 x 6.4 x 3.5mm 3.5mm 19.25mm 5.5 V
RS Stock No. 581-641
Mfr. Part No.TC74VHC138FK(EL,K)
BrandToshiba
$0.958
Each (In a Pack of 5)
units
VHC Decoder, Demultiplexer 1-of-8 1 3 - Inverting Surface Mount VSSOP 16 4 x 3 x 0.8mm 0.8mm 4mm 5.5 V
RS Stock No. 171-3382
Mfr. Part No.74HC138D
BrandToshiba
$0.166
Each (On a Reel of 2500)
units
74HC Decoder 3-of-8 34 3 CMOS Inverting Surface Mount SOIC 16 10.2 x 3.9 x 1.38mm 1.38mm 10.2mm 6 V
RS Stock No. 171-3517
Mfr. Part No.74LCX138FT
BrandToshiba
$0.384
Each (In a Pack of 25)
units
74LCX Decoder 3-of-8 34 3 CMOS Inverting Surface Mount TSSOP 16 5 x 4.4 x 1mm 1mm 5mm 3.6 V
RS Stock No. 644-0072
Mfr. Part No.TC74VHC238FT
BrandToshiba
$2.908
Each (In a Pack of 5)
units
VHC Decoder, Demultiplexer 1-of-8 1 3 - Non-Inverting Surface Mount TSSOP 16 5.4 x 4.4 x 1mm 1mm 5.4mm 5.5 V
RS Stock No. 171-3318
Mfr. Part No.74VHC138FT
BrandToshiba
$0.184
Each (On a Reel of 2500)
units
74VHC Decoder 3-of-8 34 3 TTL Inverting Surface Mount TSSOP 16 5 x 4.4 x 1mm 1mm 5mm 5.5 V
RS Stock No. 601-4291
Mfr. Part No.TC74VCX138FT
BrandToshiba
$1.34
Each (In a Pack of 5)
units
VCX Decoder, Demultiplexer 1-of-8 1 3 - Inverting Surface Mount TSSOP 16 5 x 4.4 x 1mm 1mm 5mm 3.6 V
RS Stock No. 171-3291
Mfr. Part No.74LCX138FT
BrandToshiba
$0.187
Each (On a Reel of 2500)
units
74LCX Decoder 3-of-8 34 3 CMOS Inverting Surface Mount TSSOP 16 5 x 4.4 x 1mm 1mm 5mm 3.6 V
RS Stock No. 756-3006
Mfr. Part No.TC74LCX138F(K,F)
BrandToshiba
$0.564
Each (In a Pack of 5)
units
74LCX Decoder 3-of-8 34 3 - Inverting Surface Mount SOP 16 10.8 x 5.3 x 1.5mm 1.5mm 10.8mm 3.6 V
RS Stock No. 539-9383
Mfr. Part No.TC74HC42AP(F)
BrandToshiba
$0.938
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. 756-3283
Mfr. Part No.TC7SB3157CFU(T5L,F
BrandToshiba
$0.439
Each (In a Pack of 10)
units
LVCMOS, LVTTL Demultiplexer 1-of-2 2 - - Inverting Surface Mount SSOP 6 2 x 1.25 x 0.9mm 0.9mm 2mm 5.5 V
RS Stock No. 171-3433
Mfr. Part No.74VHC138FT
BrandToshiba
$0.329
Each (In a Pack of 50)
units
74VHC Decoder 3-of-8 34 3 TTL Inverting Surface Mount TSSOP 16 5 x 4.4 x 1mm 1mm 5mm 5.5 V
RS Stock No. 171-3332
Mfr. Part No.74VHC238FT
BrandToshiba
$0.185
Each (On a Reel of 2500)
units
74VHC Decoder 3-of-8 42 3 TTL Inverting Surface Mount TSSOP 16 5 x 4.4 x 1mm 1mm 5mm 5.5 V