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. 443-047
FabrikantnummerSN74HC139N
€ 0,54
Each
Aantal stuks
- - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 6 V +85 °C - 2 V -40 °C -
RS-stocknr. 144-9900
FabrikantnummerSN74HC139N
€ 0,324
Each (In a Tube of 25)
Aantal stuks
- - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 6 V +85 °C - 2 V -40 °C -
RS-stocknr. 526-921
FabrikantnummerSN74HC139D
€ 0,398
Each (In a Tube of 40)
Aantal stuks
- - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 6 V +85 °C - 2 V -40 °C -
RS-stocknr. 662-8102
FabrikantnummerSN74HC139DR
€ 0,066
Each (In a Pack of 10)
Aantal stuks
- - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 6 V +85 °C - 2 V -40 °C -
RS-stocknr. 145-0691
FabrikantnummerCD4532BM
€ 0,369
Each (In a Tube of 40)
Aantal stuks
- - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 18 V +125 °C - 3 V -55 °C -
RS-stocknr. 460-819
FabrikantnummerLM567CN/NOPB
€ 2,106
Each (In a Pack of 5)
Aantal stuks
0.5MHz Bipolar 12mA - Through Hole MDIP 8 9.27 x 6.35 x 3.3mm 9 V +70 °C - 4.75 V 0 °C -
RS-stocknr. 100-0709
FabrikantnummerLM567CN/NOPB
€ 1,793
Each (In a Tube of 40)
Aantal stuks
0.5MHz Bipolar - - Through Hole MDIP 8 9.27 x 6.35 x 3.3mm 9 V +70 °C - 4.75 V 0 °C -
RS-stocknr. 536-0953
FabrikantnummerLM567CM/NOPB
€ 1,818
Each (In a Pack of 10)
Aantal stuks
0.5MHz Bipolar 12mA - Surface Mount SOIC 8 4.9 x 3.9 x 1.45mm 9 V +70 °C - 4.75 V 0 °C -
RS-stocknr. 102-5740
FabrikantnummerLM567CM/NOPB
€ 1,819
Each (In a Tube of 95)
Aantal stuks
0.5MHz Bipolar - - Surface Mount SOIC 8 4.9 x 3.9 x 1.45mm 9 V +70 °C - 4.75 V 0 °C -
RS-stocknr. 145-0465
FabrikantnummerCD4028BE
€ 0,424
Each (In a Tube of 25)
Aantal stuks
- - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 18 V +125 °C - 3 V -55 °C -
RS-stocknr. 144-9997
FabrikantnummerCD74HC238E
€ 0,479
Each (In a Tube of 25)
Aantal stuks
- - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 6 V +125 °C - 2 V -55 °C -
RS-stocknr. 662-8433
FabrikantnummerSN74LV139APWR
€ 0,281
Each (In a Pack of 10)
Aantal stuks
- - - - Surface Mount TSSOP 16 5 x 4.4 x 1.15mm 5.5 V +85 °C - 2 V -40 °C -
RS-stocknr. 709-2160
FabrikantnummerSN74LS247N
€ 1,794
Each (In a Pack of 5)
Aantal stuks
- - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 5.25 V +70 °C - 4.75 V 0 °C -
RS-stocknr. 662-7070
FabrikantnummerCD74HC238PWR
€ 0,391
Each (In a Pack of 10)
Aantal stuks
- - - - Surface Mount TSSOP 16 5 x 4.4 x 1.15mm 6 V +125 °C - 2 V -55 °C -
RS-stocknr. 121-9249
FabrikantnummerSN74LS247N
€ 1,526
Each (In a Tube of 25)
Aantal stuks
- - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 5.25 V +70 °C - 4.75 V 0 °C -
RS-stocknr. 709-2034
FabrikantnummerCD74HC238E
€ 0,479
Each (In a Pack of 10)
Aantal stuks
- - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 6 V +125 °C - 2 V -55 °C -
RS-stocknr. 709-2700
FabrikantnummerCD74HC147EE4
€ 0,612
Each (In a Pack of 10)
Aantal stuks
- - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 6 V +125 °C - 2 V -55 °C -
RS-stocknr. 162-6945
FabrikantnummerCD74HC238PWR
€ 0,161
Each (On a Reel of 2000)
Aantal stuks
- - - - Surface Mount TSSOP 16 5 x 4.4 x 1.15mm 6 V +125 °C - 2 V -55 °C -
RS-stocknr. 145-0477
FabrikantnummerCD74HC147EE4
€ 0,347
Each (In a Tube of 25)
Aantal stuks
- - - - Through Hole PDIP 16 19.3 x 6.35 x 4.57mm 6 V +125 °C - 2 V -55 °C -
RS-stocknr. 662-8269
FabrikantnummerSN74HCT138DR
€ 0,077
Each (In a Pack of 10)
Aantal stuks
- - - - Surface Mount SOIC 16 9.9 x 3.91 x 1.58mm 5.5 V +85 °C - 4.5 V -40 °C -