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 662-8430
Référence fabricantSN74LV138APWR
0,255 €
Each (In a Pack of 10)
Unité
- - - - Surface Mount TSSOP 16 5 x 4.4 x 1.15mm 5.5 V +85 °C - 2 V -40 °C -
N° de stock RS 162-7426
Référence fabricantSN74LV138APWR
0,097 €
Each (On a Reel of 2000)
Unité
- - - - Surface Mount TSSOP 16 5 x 4.4 x 1.15mm 5.5 V +85 °C - 2 V -40 °C -
N° de stock RS 662-8752
Référence fabricantSN74LVC1G19DBVR
0,225 €
Each (In a Pack of 10)
Unité
- - - - Surface Mount SOT-23 6 2.9 x 1.6 x 1.15mm 5.5 V +85 °C - 1.65 V -40 °C -
N° de stock RS 671-1539
Référence fabricant74ACT138SC
0,41 €
Each (In a Pack of 20)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 5.5 V +85 °C - 4.5 V -40 °C -
N° de stock RS 166-1618
Référence fabricantMM74HC138MX
0,18 €
Each (On a Reel of 2500)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V +85 °C - 2 V -40 °C -
N° de stock RS 671-1490
Référence fabricant74AC138SC
0,508 €
Each (In a Pack of 5)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V +85 °C - 2 V -40 °C -
N° de stock RS 163-0548
Référence fabricantMC14543BDR2G
0,125 €
Each (On a Reel of 2500)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 18 V +125 °C - -0.5 V -55 °C -
N° de stock RS 170-8040
Référence fabricant74HC154D,653
MarqueNexperia
0,199 €
Each (On a Reel of 1000)
Unité
- - - - Surface Mount SO 24 15.6 x 7.6 x 2.45mm 6 V +125 °C - 2 V -40 °C -
N° de stock RS 170-5357
Référence fabricant74HC4851PW,118
MarqueNexperia
0,144 €
Each (In a Pack of 25)
Unité
- - - - Surface Mount TSSOP 16 5.1 x 4.5 x 0.95mm 6 V +125 °C - 2 V -40 °C -
N° de stock RS 178-6977
Référence fabricant74HCT238D,652
MarqueNexperia
0,452 €
Each (In a Tube of 50)
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 178-9167
Référence fabricantCD74HCT238M96
0,515 €
Each (In a Tube of 40)
Unité
- - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 5.5 V +125 °C - 4.5 V -55 °C -
N° de stock RS 759-9330
Référence fabricantFSAL200QSCX
1,048 €
Each (In a Pack of 5)
Unité
- - - - Surface Mount QSOP 16 5 x 3.9 x 1.357mm 5.5 V +85 °C - 3 V -40 °C -
N° de stock RS 671-1548
Référence fabricant74ACT139SCX
0,434 €
Each (In a Pack of 20)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 5.5 V +85 °C - 4.5 V -40 °C -
N° de stock RS 170-4874
Référence fabricant74HC154PW,118
MarqueNexperia
0,377 €
Each (On a Reel of 2500)
Unité
- - - - Surface Mount TSSOP 24 7.9 x 4.5 x 0.95mm 6 V +125 °C - 2 V -40 °C -
N° de stock RS 197-7517
Référence fabricantSN74LS47N
0,63 €
Each
Unité
- - - - - PDIP 16 - - - - - - -
N° de stock RS 171-3447
Référence fabricant74VHC139FT
MarqueToshiba
0,221 €
Each (In a Pack of 50)
Unité
- - - - Surface Mount TSSOP 16 5 x 4.4 x 1mm 5.5 V +125 °C AEC-Q100 2 V -40 °C -
N° de stock RS 125-0024
Référence fabricantMC14511BDG
0,419 €
Each (In a Tube of 48)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 18 V +125 °C - 3 V -55 °C -
N° de stock RS 662-7014
Référence fabricantCD74HC139M96
0,443 €
Each (In a Pack of 10)
Unité
- - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 6 V +125 °C - 2 V -55 °C -
N° de stock RS 162-6918
Référence fabricantCD4028BM96
0,119 €
Each (On a Reel of 2500)
Unité
- - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 18 V +125 °C - 3 V -55 °C -
N° de stock RS 662-9698
Référence fabricantCD4511BE
0,536 €
Each (In a Pack of 5)
Unité
- - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 18 V +125 °C - 3 V -55 °C -