Encoder & Decoder ICs

Encoders are logic semiconductor ICs (integrated circuits) that have been designed to encode and decode digital binary codes for inputs whilst decoders receive data transmissions in amateur radio frequency bands. They constantly monitor incoming signals for valid DTMF digits. These electronic circuits decode DTMF dial tones from telephone lines into touch-tone phones via a process known as tone dialling.

How do Encoders and Decoders work?

An encoder IC is manufactured to encode digital data from one format type or code to another that can accept multiple inputs and generate multi-bit output. Their primary functions are speed, security, standardisation by shrinking the size.

Decoder ICs increase connectivity in electronics to allow better control of applications. Home units like security alarm systems, electronic gates and garage doors, access control systems and everyday appliances make use of DTMF functionalities.

Types of Encoders and Decoders?

Encoder ICs are available with different encoding types such as Key and priority.

A DTMF (Dual Tone Multi-Frequency) decoder IC is a device that receives data transmissions in amateur radio frequency bands. They constantly monitor incoming signals for valid DTMF digits. These electronic circuits decode DTMF dial tones from telephone lines into touch-tone phones via a process known as tone dialling.

The most common types of DTMF Decoder ICs include 2-tone, 5-tone, multi-tone and burst-tone versions. Multi-tone decoders receive and translate multiple tones from the source whilst Burst-tone versions decode clashing frequencies into binary signals.

As well as being offered with variations of logic families, the number of pins on the IC and different mount types.

Applications of encoders and decoders

Encoders and decoders have an array of application use such as;

  • Smoke and fire alarm system
  • Home security systems
  • Identity tokens
  • Mobile phones and landlines

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Description Prix Operating Frequency Fabrication Technology Typical Supply Current Minimum CMRR Mounting Type Package Type Pin Count Dimensions Maximum Operating Supply Voltage Maximum Operating Temperature Automotive Standard Minimum Operating Supply Voltage Minimum Operating Temperature Number of Elements per Chip
N° de stock RS 798-8897
Référence fabricant74AHC138S16-13
MarqueDiodesZetex
0,055 €
Each (In a Pack of 25)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 5.5 V +125 °C - 2 V -40 °C -
N° de stock RS 178-6970
Référence fabricantHEF4543BT,652
MarqueNexperia
0,107 €
Each (In a Tube of 50)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.45mm 15 V +85 °C - 3 V -40 °C -
N° de stock RS 781-2831
Référence fabricant74HC4514D,652
MarqueNexperia
0,99 €
Each (In a Pack of 10)
Unité
- - - - Surface Mount SOIC 24 15.6 x 7.6 x 2.45mm 6 V +125 °C - 2 V -40 °C -
N° de stock RS 162-6504
Référence fabricantCD4511BPW
0,351 €
Each (In a Tube of 90)
Unité
- - - - Surface Mount TSSOP 16 5.1 x 4.5 x 1.05mm 18 V +125 °C - 3 V -55 °C -
N° de stock RS 526-921
Référence fabricantSN74HC139D
0,334 €
Each (In a Tube of 40)
Unité
- - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 6 V +85 °C - 2 V -40 °C -
N° de stock RS 165-8697
Référence fabricant74HCT153PW,112
MarqueNexperia
0,23 €
Each (In a Bag of 2400)
Unité
- - - - Surface Mount TSSOP 16 5.1 x 4.5 x 0.95mm 5.5 V +125 °C - 4.5 V -40 °C -
N° de stock RS 809-6220
Référence fabricantCD4511BPW
0,351 €
Each (In a Pack of 15)
Unité
- - - - Surface Mount TSSOP 16 5.1 x 4.5 x 1.05mm 18 V +125 °C - 3 V -55 °C -
N° de stock RS 144-9997
Référence fabricantCD74HC238E
0,394 €
Each (In a Tube of 25)
Unité
- - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 6 V +125 °C - 2 V -55 °C -
N° de stock RS 885-0692
Référence fabricantHT12E-18DIP
MarqueHoltek
0,682 €
Each (In a Tube of 25)
Unité
- - - - Through Hole PDIP 18 23.37 x 7.11 x 4.95mm 12 V +75 °C - 2.4 V -20 °C -
N° de stock RS 145-6103
Référence fabricantSN7445N
2,14 €
Each (In a Tube of 25)
Unité
- - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 5.25 V +70 °C - 4.75 V 0 °C -
N° de stock RS 662-8617
Référence fabricantSN74LVC138ADR
0,232 €
Each (In a Pack of 10)
Unité
- - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 3.6 V +85 °C - 1.65 V -40 °C -
N° de stock RS 709-2034
Référence fabricantCD74HC238E
0,394 €
Each (In a Pack of 10)
Unité
- - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 6 V +125 °C - 2 V -55 °C -
N° de stock RS 186-9243
Référence fabricantMC74VHC138DG
0,273 €
Each (In a Pack of 25)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V +125 °C - 2 V -55 °C -
N° de stock RS 170-4837
Référence fabricant74LVC138APW,118
MarqueNexperia
0,088 €
Each (On a Reel of 2500)
Unité
- - - - Surface Mount TSSOP 16 5.1 x 4.5 x 0.95mm 3.6 V +125 °C - 1.2 V -40 °C -
N° de stock RS 759-9336
Référence fabricantFSAL200MTCX
0,99 €
Each (In a Pack of 5)
Unité
- - - - Surface Mount TSSOP 16 5 x 4.4 x 0.9mm 5.5 V +85 °C - 3 V -40 °C -
N° de stock RS 170-4831
Référence fabricantHEF4051BT,653
MarqueNexperia
0,107 €
Each (On a Reel of 2500)
Unité
- - - - Surface Mount SO 16 10 x 4 x 1.45mm 15 V +125 °C - 3 V -40 °C -
N° de stock RS 483-6718
Référence fabricant74HCT238D,652
MarqueNexperia
0,452 €
Each (In a Pack of 10)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.45mm 5.5 V +125 °C - 4.5 V -40 °C -
N° de stock RS 184-4262
Référence fabricantMC14543BDG
0,295 €
Each (In a Tube of 48)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm +18 V +125 °C AEC-Q100 -5 V -55 °C -
N° de stock RS 145-1076
Référence fabricantSN74LS145D
0,828 €
Each (In a Tube of 40)
Unité
- - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 5.25 V +70 °C - 4.75 V 0 °C -
N° de stock RS 861-0560
Référence fabricantHCS301-I/SN
MarqueMicrochip
1,068 €
Each (In a Pack of 5)
Unité
- - - - Surface Mount SOIC 8 4.9 x 3.9 x 1.5mm 13 V +85 °C - 3.5 V -40 °C -