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. 144-9900
FabrikantnummerSN74HC139N
€ 0,294
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. 443-047
FabrikantnummerSN74HC139N
€ 0,48
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. 178-6970
FabrikantnummerHEF4543BT,652
FabrikantNexperia
€ 0,107
Each (In a Tube of 50)
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 4 x 1.45mm 15 V +85 °C - 3 V -40 °C -
RS-stocknr. 355-9460
FabrikantnummerHEF4543BT,652
FabrikantNexperia
€ 0,13
Each
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 4 x 1.45mm 15 V +85 °C - 3 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. 526-921
FabrikantnummerSN74HC139D
€ 0,361
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. 178-2945
FabrikantnummerAEAT-6600-T16
FabrikantBroadcom
€ 4,582
Each (In a Tube of 970)
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 885-0702
FabrikantnummerHT12D-18DIP
FabrikantHoltek
€ 0,588
Each (In a Tube of 25)
Aantal stuks
- - - - Through Hole PDIP 18 23.37 x 7.11 x 4.95mm 12 V +75 °C - 2.4 V -20 °C -
RS-stocknr. 165-9889
Fabrikantnummer74HC157D,652
FabrikantNexperia
€ 0,324
Each (In a Tube of 50)
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 4 x 1.45mm - +125 °C - - -40 °C -
RS-stocknr. 796-7802
FabrikantnummerAEAT-6600-T16
FabrikantBroadcom
€ 6,95
Each
Aantal stuks
- - - - - - - - - - - - - -
RS-stocknr. 865-1586
Fabrikantnummer74HCT139D,652
FabrikantNexperia
€ 0,315
Each (In a Tube of 50)
Aantal stuks
- - - - Surface Mount SOIC 16 6.4 x 5.4 x 1.8mm 5.5 V +125 °C - 4.5 V -40 °C -
RS-stocknr. 791-8719
Fabrikantnummer74HC157D,652
FabrikantNexperia
€ 0,324
Each (In a Pack of 25)
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 4 x 1.45mm - +125 °C - - -40 °C -
RS-stocknr. 100-0709
FabrikantnummerLM567CN/NOPB
€ 1,63
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. 103-5683
Fabrikantnummer74HC238D,652
FabrikantNexperia
€ 0,356
Each (In a Tube of 50)
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 4 x 1.45mm 6 V +125 °C - 2 V -40 °C -
RS-stocknr. 483-6487
Fabrikantnummer74HC238D,652
FabrikantNexperia
€ 0,356
Each (In a Pack of 10)
Aantal stuks
- - - - Surface Mount SOIC 16 10 x 4 x 1.45mm 6 V +125 °C - 2 V -40 °C -
RS-stocknr. 102-5740
FabrikantnummerLM567CM/NOPB
€ 1,653
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. 170-8004
Fabrikantnummer74HC238D,653
FabrikantNexperia
€ 0,158
Each (On a Reel of 2500)
Aantal stuks
- - - - Surface Mount SO 16 10 x 4 x 1.45mm 6 V +125 °C - 2 V -40 °C -
RS-stocknr. 165-8697
Fabrikantnummer74HCT153PW,112
FabrikantNexperia
€ 0,23
Each (In a Bag of 2400)
Aantal stuks
- - - - Surface Mount TSSOP 16 5.1 x 4.5 x 0.95mm 5.5 V +125 °C - 4.5 V -40 °C -
RS-stocknr. 885-0705
FabrikantnummerHT12D-20SOP
FabrikantHoltek
€ 0,544
Each (In a Tube of 38)
Aantal stuks
- - - - Surface Mount SOP 20 12.8 x 7.5 x 2.35mm 12 V +75 °C - 2.4 V -20 °C -
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 -