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 483-6718
Référence fabricant74HCT238D,652
MarqueNexperia
0,497 €
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 124-2261
Référence fabricant74HC4514D,652
MarqueNexperia
1,089 €
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 178-6977
Référence fabricant74HCT238D,652
MarqueNexperia
0,497 €
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 662-8272
Référence fabricantSN74HCT139DR
0,358 €
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 308-253
Référence fabricantSN74LS139AN
0,78 €
Each
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 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 443-047
Référence fabricantSN74HC139N
0,54 €
Each
Unité
- - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 6 V +85 °C - 2 V -40 °C -
N° de stock RS 122-2833
Référence fabricant74HC138S16-13
MarqueDiodesZetex
0,122 €
Each (On a Reel of 2500)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 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 163-0573
Référence fabricantMC74AC138DG
0,385 €
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
0,481 €
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 -
Nouveau
N° de stock RS 216-3599
Référence fabricantAEDR-9820-102
MarqueBroadcom
19,40 €
Each
Unité
2MHz - 30mA - - 4mm x 4mm x 1.05mm 25 - - - - - - -
Nouveau
N° de stock RS 216-3600
Référence fabricantAEDR-9830-102
MarqueBroadcom
18,376 €
Each (On a Reel of 100)
Unité
2MHz - 30mA - - 4mm x 4mm x 1.05mm 25 - - - - - - -
N° de stock RS 709-1983
Référence fabricantSN74HCT138N
0,435 €
Each (In a Pack of 10)
Unité
- - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 5.5 V +85 °C - 4.5 V -40 °C -
N° de stock RS 145-0138
Référence fabricantCD4056BM
0,351 €
Each (In a Tube of 40)
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 136-4884
Référence fabricant74HC138D,653
MarqueNexperia
0,157 €
Each (In a Pack of 100)
Unité
- - - - Surface Mount SO 16 10 x 4 x 1.45mm 5.5 V +125 °C - 4.5 V -40 °C -
N° de stock RS 151-3387
Référence fabricant74HC4852D,118
MarqueNexperia
0,196 €
Each (On a Reel of 2500)
Unité
- - - - Surface Mount SO 16 10 x 4 x 1.5mm 6 V +125 °C - 2 V -40 °C -
N° de stock RS 170-4896
Référence fabricant74HC4851PW,118
MarqueNexperia
0,129 €
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 -
Nouveau
N° de stock RS 216-3598
Référence fabricantAEDR-9820-102
MarqueBroadcom
15,556 €
Each (On a Reel of 100)
Unité
2MHz - 30mA - - 4mm x 4mm x 1.05mm 25 - - - - - - -
N° de stock RS 174-4145
Référence fabricantAEDR-8502-102
MarqueBroadcom
9,32 €
Each
Unité
- - - - Surface Mount SMD 8 3.95 x 3.4 x 0.95mm 5.5 V +85 °C - 4.5 V -20 °C -