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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Omschrijving Prijs 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
RS-stocknr. 806-1416
FabrikantnummerMC74HC139ADG
FabrikantON Semiconductor
€ 0,264
Each (In a Pack of 48)
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V +125 °C - 2 V -55 °C -
RS-stocknr. 806-3166
FabrikantnummerMC14028BDR2G
FabrikantON Semiconductor
€ 0,316
Each (On a Tape of 25)
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 18 V +125 °C - 3 V -55 °C -
RS-stocknr. 163-0548
FabrikantnummerMC14543BDR2G
FabrikantON Semiconductor
€ 0,116
Each (On a Reel of 2500)
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 18 V +125 °C - -0.5 V -55 °C -
RS-stocknr. 806-3157
FabrikantnummerMC14028BDG
FabrikantON Semiconductor
€ 0,332
Each (In a Pack of 25)
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 18 V +125 °C - 3 V -55 °C -
RS-stocknr. 806-3309
FabrikantnummerMC14543BDR2G
FabrikantON Semiconductor
€ 0,294
Each (In a Pack of 25)
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 18 V +125 °C - -0.5 V -55 °C -
RS-stocknr. 518-9530A
FabrikantnummerMC14543BDG
FabrikantON Semiconductor
€ 0,311
Each (In a Pack of 48)
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 18 V +125 °C - 3 V -55 °C 1
RS-stocknr. 184-4262
FabrikantnummerMC14543BDG
FabrikantON Semiconductor
€ 0,295
Each (In a Tube of 48)
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm +18 V +125 °C AEC-Q100 -5 V -55 °C -
RS-stocknr. 761-4306
Fabrikantnummer74ACT138SCX
FabrikantON Semiconductor
€ 0,422
Each (On a Tape of 10)
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 6.198 x 1.499mm 5.5 V +85 °C - 4.5 V -40 °C -
RS-stocknr. 145-4506
FabrikantnummerMM74HC138M
FabrikantON Semiconductor
€ 0,452
Each (In a Tube of 48)
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V 85 °C - 2 V -40 °C -
RS-stocknr. 671-1539
Fabrikantnummer74ACT138SC
FabrikantON Semiconductor
€ 0,41
Each (In a Pack of 20)
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 5.5 V +85 °C - 4.5 V -40 °C -
RS-stocknr. 806-2163
FabrikantnummerMC74AC138DG
FabrikantON Semiconductor
€ 0,362
Each (In a Pack of 25)
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V +85 °C - 2 V -40 °C -
RS-stocknr. 184-4278
FabrikantnummerMC74HC238ADG
FabrikantON Semiconductor
€ 0,231
Each (In a Tube of 48)
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V +125 °C AEC-Q100 2 V -55 °C -
RS-stocknr. 170-3561
FabrikantnummerMC74HC138ADR2G
FabrikantON Semiconductor
€ 0,082
Each (On a Reel of 2500)
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V +125 °C - 2 V -55 °C -
RS-stocknr. 806-3298
FabrikantnummerMC14532BDG
FabrikantON Semiconductor
€ 0,55
Each (In a Pack of 20)
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 18 V +125 °C - 3 V -55 °C -
RS-stocknr. 166-2474
FabrikantnummerFSAL200MTCX
FabrikantON Semiconductor
€ 0,523
Each (On a Reel of 2500)
Aantal stuks
- - - - Surface Mount TSSOP 16 5 x 4.4 x 0.9mm 5.5 V +85 °C - 3 V -40 °C -
RS-stocknr. 186-9243
FabrikantnummerMC74VHC138DG
FabrikantON Semiconductor
€ 0,273
Each (In a Pack of 25)
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V +125 °C - 2 V -55 °C -
RS-stocknr. 125-0046
FabrikantnummerMC74VHC139DTR2G
FabrikantON Semiconductor
€ 0,123
Each (On a Reel of 2500)
Aantal stuks
- - - - Surface Mount TSSOP 16 5.1 x 4.5 x 1.05mm 5.5 V +125 °C - 2 V -55 °C -
RS-stocknr. 122-0107
FabrikantnummerMC74HC138ADG
FabrikantON Semiconductor
€ 0,224
Each (In a Tube of 48)
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V +125 °C - 2 V -55 °C -
RS-stocknr. 671-1740
FabrikantnummerMM74HC138M
FabrikantON Semiconductor
€ 0,55
Each (In a Pack of 5)
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V +85 °C - 2 V -40 °C -
RS-stocknr. 166-1972
Fabrikantnummer74ACT139SCX
FabrikantON Semiconductor
€ 0,221
Each (On a Reel of 2500)
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 5.5 V +85 °C - 4.5 V -40 °C -