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 663-2549
Référence fabricantSN74LS47D
0,792 €
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 663-1931
Référence fabricantSN74HC139PW
0,099 €
Each (In a Pack of 10)
Unité
- - - - Surface Mount TSSOP 16 5 x 4.4 x 1.15mm 6 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 671-1740
Référence fabricantMM74HC138M
0,542 €
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 796-7802
Référence fabricantAEAT-6600-T16
MarqueBroadcom
6,95 €
Each
Unité
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N° de stock RS 145-0006
Référence fabricantCD4056BEE4
0,20 €
Each (In a Tube of 25)
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 663-1149
Référence fabricantSN74AHC139D
0,283 €
Each (In a Pack of 10)
Unité
- - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 5.5 V +85 °C - 2 V -40 °C -
N° de stock RS 368-4724
Référence fabricantSN7447AN
2,31 €
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 436-7537
Référence fabricant74HC237D,652
MarqueNexperia
0,41 €
Each (In a Tube of 50)
Unité
- - - - Surface Mount SOIC 16 10 x 4 x 1.45mm 6 V +125 °C - 2 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 145-0691
Référence fabricantCD4532BM
0,369 €
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 806-3917
Référence fabricantMC74VHC139DTR2G
0,328 €
Each (In a Pack of 25)
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 170-5537
Référence fabricant74HC238PW,118
MarqueNexperia
0,368 €
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 761-4306
Référence fabricant74ACT138SCX
0,468 €
Each (On a Tape of 10)
Unité
- - - - Surface Mount SOIC 16 10 x 6.198 x 1.499mm 5.5 V +85 °C - 4.5 V -40 °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 -
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 162-7410
Référence fabricantSN74LS148D
1,163 €
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 144-9942
Référence fabricantCD74HC138E
0,452 €
Each (In a Tube of 25)
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 146-0417
Référence fabricant74HCT154PW,112
MarqueNexperia
0,604 €
Each (In a Tube of 63)
Unité
- - - - Surface Mount TSSOP 24 7.9 x 4.5 x 0.95mm 5.5 V +125 °C - 4.5 V -40 °C -