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 162-7411
Référence fabricantSN74LS155AN
1,088 €
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 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 662-8106
Référence fabricantSN74HC148DR
0,077 €
Each (In a Pack of 10)
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 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 145-4506
Référence fabricantMM74HC138M
0,429 €
Each (In a Tube of 48)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V 85 °C - 2 V -40 °C -
N° de stock RS 709-2315
Référence fabricantCD4056BEE4
0,258 €
Each (In a Pack of 10)
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 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 178-2945
Référence fabricantAEAT-6600-T16
MarqueBroadcom
4,582 €
Each (In a Tube of 970)
Unité
- - - - - - - - - - - - - -
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 170-8040
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 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 662-8269
Référence fabricantSN74HCT138DR
0,077 €
Each (In a Pack of 10)
Unité
- - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 5.5 V +85 °C - 4.5 V -40 °C -
N° de stock RS 124-2261
Référence fabricant74HC4514D,652
MarqueNexperia
0,99 €
Each (In a Tube of 30)
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 885-0702
Référence fabricantHT12D-18DIP
MarqueHoltek
0,588 €
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 124-2268
Référence fabricant74HCT4514D,652
MarqueNexperia
1,387 €
Each (In a Tube of 30)
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 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 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 833-428
Référence fabricantCD74ACT138M
0,73 €
Each
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 197-7516
Référence fabricantSN74LS47N
0,509 €
Each (In a Tube of 25)
Unité
- - - - - PDIP 16 - - - - - - -
N° de stock RS 885-0705
Référence fabricantHT12D-20SOP
MarqueHoltek
0,544 €
Each (In a Tube of 38)
Unité
- - - - Surface Mount SOP 20 12.8 x 7.5 x 2.35mm 12 V +75 °C - 2.4 V -20 °C -