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 825-3192
Référence fabricant74AC11138D
2,376 €
Each (In a Pack of 5)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 5.5 V +85 °C - 3 V -40 °C -
N° de stock RS 483-6421
Référence fabricant74HC154D,652
MarqueNexperia
0,66 €
Each (In a Pack of 5)
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 663-2410
Référence fabricantSN74LS145D
1,00 €
Each (In a Pack of 5)
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 816-4698
Référence fabricant74HCT4514D,652
MarqueNexperia
1,388 €
Each (In a Pack of 10)
Unité
- - - - Surface Mount SOIC 24 15.6 x 7.6 x 2.45mm 5.5 V +125 °C - 4.5 V -40 °C -
N° de stock RS 761-4482
Référence fabricantMM74HC138MX
0,401 €
Each (In a Pack of 10)
Unité
- - - - Surface Mount SOIC 16 10 x 6.198 x 1.499mm 6 V +85 °C - 2 V -40 °C -
N° de stock RS 145-0381
Référence fabricantSN74LS259BN
0,824 €
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 662-8430
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 162-7376
Référence fabricantSN74HC139PW
0,087 €
Each (In a Tube of 90)
Unité
- - - - Surface Mount TSSOP 16 5 x 4.4 x 1.15mm 6 V +85 °C - 2 V -40 °C -
N° de stock RS 170-4872
Référence fabricant74HC238PW,118
MarqueNexperia
0,146 €
Each (On a Reel of 2500)
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 806-2166
Référence fabricantMC74AC139DG
0,336 €
Each (In a Pack of 25)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V +85 °C - 2 V -40 °C -
N° de stock RS 186-9151
Référence fabricantMC14511BDR2G
0,384 €
Each (In a Pack of 25)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 18 V +125 °C AEC-Q100 3 V -55 °C -
N° de stock RS 806-1416
Référence fabricantMC74HC139ADG
0,264 €
Each (In a Pack of 48)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V +125 °C - 2 V -55 °C -
N° de stock RS 121-8345
Référence fabricantSN74LS138D
0,307 €
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 145-6398
Référence fabricantCD74HCT138M96
0,193 €
Each (On a Reel of 2500)
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 145-6405
Référence fabricantSN74LS156D
0,303 €
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 145-4239
Référence fabricantMC74HC238ADR2G
0,089 €
Each (On a Reel of 2500)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V +125 °C - 2 V -55 °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 170-5417
Référence fabricant74LV4051PW,118
MarqueNexperia
0,204 €
Each (In a Pack of 10)
Unité
- - - - Surface Mount TSSOP 16 5.1 x 4.5 x 0.95mm 6 V +125 °C - 1 V -40 °C -
N° de stock RS 662-9648
Référence fabricantCD4056BM
0,376 €
Each (In a Pack of 10)
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 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 -