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 125-0046
Référence fabricantMC74VHC139DTR2G
0,123 €
Each (On a Reel of 2500)
Unité
- - - - Surface Mount TSSOP 16 5.1 x 4.5 x 1.05mm 5.5 V +125 °C - 2 V -55 °C -
N° de stock RS 171-3360
Référence fabricant74VHCT138AFT
MarqueToshiba
0,145 €
Each (On a Reel of 2500)
Unité
- - - - Surface Mount TSSOP 16 5 x 4.4 x 1mm 5.5 V +125 °C AEC-Q100 4.5 V -40 °C -
N° de stock RS 163-0550
Référence fabricantMC14555BDG
0,472 €
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 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 170-8065
Référence fabricantHEF4051BT,652
MarqueNexperia
0,283 €
Each (In a Tube of 50)
Unité
- - - - Surface Mount SO 16 10 x 4 x 1.45mm 15 V +125 °C - 3 V -40 °C -
N° de stock RS 709-2700
Référence fabricantCD74HC147EE4
0,581 €
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 816-8769
Référence fabricant74LVC1G157GW,125
MarqueNexperia
0,22 €
Each (In a Pack of 50)
Unité
- - - - Surface Mount SC-88 6 2.2 x 1.35 x 1mm 5.5 V +125 °C - 1.65 V -40 °C -
N° de stock RS 197-7516
Référence fabricantSN74LS47N
0,463 €
Each (In a Tube of 25)
Unité
- - - - - PDIP 16 - - - - - - -
N° de stock RS 144-9954
Référence fabricantCD74HCT139M
0,203 €
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 171-3318
Référence fabricant74VHC138FT
MarqueToshiba
0,079 €
Each (On a Reel of 2500)
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 200-5286
Référence fabricantAS5045-ASST
Marqueams
6,161 €
Each (On a Reel of 500)
Unité
- - - - - SSOP 16 - - - - - - -
N° de stock RS 184-4278
Référence fabricantMC74HC238ADG
0,231 €
Each (In a Tube of 48)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V +125 °C AEC-Q100 2 V -55 °C -
N° de stock RS 663-0363
Référence fabricantCD74HC4514M
2,49 €
Each
Unité
- - - - Surface Mount SOIC 24 15.4 x 7.52 x 2.35mm 6 V +125 °C - 2 V -55 °C -
N° de stock RS 662-9698
Référence fabricantCD4511BE
0,50 €
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 -
N° de stock RS 145-0712
Référence fabricantSN74HC138PW
0,097 €
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 144-9897
Référence fabricantSN74LS139AN
0,576 €
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 662-7070
Référence fabricantCD74HC238PWR
0,319 €
Each (In a Pack of 10)
Unité
- - - - Surface Mount TSSOP 16 5 x 4.4 x 1.15mm 6 V +125 °C - 2 V -55 °C -
N° de stock RS 165-8613
Référence fabricant74LVC1G157GV,125
MarqueNexperia
0,045 €
Each (On a Reel of 3000)
Unité
- - - - Surface Mount SC-74 6 3.1 x 1.7 x 1mm 5.5 V +125 °C - 1.65 V -40 °C -
N° de stock RS 663-0351
Référence fabricantCD74HC4511M
0,74 €
Each (In a Pack of 5)
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 671-1582
Référence fabricant74LCX138M
0,532 €
Each (In a Pack of 5)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 3.6 V +85 °C - 2 V -40 °C -