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 Price 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
RS Stock No. 483-6392
Mfr. Part No.74HC137D,652
BrandNexperia
MYR1.915
Each (In a Pack of 10)
units
- - - - Surface Mount SOIC 16 10 x 4 x 1.45mm 6 V +125 °C - 2 V -40 °C
RS Stock No. 166-1282
Mfr. Part No.74HC137D,652
BrandNexperia
MYR1.889
Each (In a Tube of 50)
units
- - - - Surface Mount SOIC 16 10 x 4 x 1.45mm 6 V +125 °C - 2 V -40 °C
RS Stock No. 355-9460
Mfr. Part No.HEF4543BT,652
BrandNexperia
MYR2.34
Each
units
- - - - Surface Mount SOIC 16 10 x 4 x 1.45mm 15 V +85 °C - 3 V -40 °C
RS Stock No. 178-6970
Mfr. Part No.HEF4543BT,652
BrandNexperia
MYR1.928
Each (In a Tube of 50)
units
- - - - Surface Mount SOIC 16 10 x 4 x 1.45mm 15 V +85 °C - 3 V -40 °C
RS Stock No. 165-8614
Mfr. Part No.74LVC1G157GW,125
BrandNexperia
MYR0.247
Each (On a Reel of 3000)
units
- - - - Surface Mount SC-88 6 2.2 x 1.35 x 1mm 5.5 V +125 °C - 1.65 V -40 °C
RS Stock No. 136-4813
Mfr. Part No.74HC138D,653
BrandNexperia
MYR0.427
Each (On a Reel of 2500)
units
- - - - Surface Mount SO 16 10 x 4 x 1.45mm 5.5 V +125 °C - 4.5 V -40 °C
RS Stock No. 781-2831
Mfr. Part No.74HC4514D,652
BrandNexperia
MYR4.208
Each (In a Pack of 10)
units
- - - - Surface Mount SOIC 24 15.6 x 7.6 x 2.45mm 6 V +125 °C - 2 V -40 °C
RS Stock No. 170-5460
Mfr. Part No.74HCT138D,653
BrandNexperia
MYR1.37
Each (In a Pack of 50)
units
- - - - Surface Mount SO16 16 6.4 x 5.4 x 1.8mm 5.5 V +125 °C - 4.5 V -40 °C
RS Stock No. 124-2268
Mfr. Part No.74HCT4514D,652
BrandNexperia
MYR6.63
Each (In a Tube of 30)
units
- - - - Surface Mount SOIC 24 15.6 x 7.6 x 2.45mm 5.5 V +125 °C - 4.5 V -40 °C
RS Stock No. 152-3694
Mfr. Part No.74LVC1G19GW,125
BrandNexperia
MYR0.438
Each (In a Pack of 100)
units
- - - - Surface Mount TSSOP 6 2.2 x 1.35 x 1mm 5.5 V +125 °C - 1.65 V -40 °C
RS Stock No. 816-4644
Mfr. Part No.74HCT153PW,112
BrandNexperia
MYR2.293
Each (In a Pack of 32)
units
- - - - Surface Mount TSSOP 16 5.1 x 4.5 x 0.95mm 5.5 V +125 °C - 4.5 V -40 °C
RS Stock No. 146-0367
Mfr. Part No.74HC138PW,112
BrandNexperia
MYR1.276
Each (In a Tube of 96)
units
- - - - Surface Mount TSSOP 16 5.1 x 4.5 x 0.95mm 6 V +125 °C - 2 V -40 °C
RS Stock No. 170-4831
Mfr. Part No.HEF4051BT,653
BrandNexperia
MYR0.574
Each (On a Reel of 2500)
units
- - - - Surface Mount SO 16 10 x 4 x 1.45mm 15 V +125 °C - 3 V -40 °C
RS Stock No. 170-5370
Mfr. Part No.74HC4067DB,118
BrandNexperia
MYR2.579
Each (In a Pack of 10)
units
- - - - Surface Mount SSOP 24 8.4 x 5.4 x 1.8mm 10 V +125 °C - 2 V -40 °C
RS Stock No. 791-8719
Mfr. Part No.74HC157D,652
BrandNexperia
MYR1.856
Each (In a Pack of 25)
units
- - - - Surface Mount SOIC 16 10 x 4 x 1.45mm - +125 °C - - -40 °C
RS Stock No. 146-0417
Mfr. Part No.74HCT154PW,112
BrandNexperia
MYR3.03
Each (In a Tube of 63)
units
- - - - Surface Mount TSSOP 24 7.9 x 4.5 x 0.95mm 5.5 V +125 °C - 4.5 V -40 °C
RS Stock No. 170-5417
Mfr. Part No.74LV4051PW,118
BrandNexperia
MYR2.183
Each (In a Pack of 10)
units
- - - - Surface Mount TSSOP 16 5.1 x 4.5 x 0.95mm 6 V +125 °C - 1 V -40 °C
RS Stock No. 178-6959
Mfr. Part No.74HC154D,652
BrandNexperia
MYR2.754
Each (In a Tube of 30)
units
- - - - Surface Mount SOIC 24 15.6 x 7.6 x 2.45mm 6 V +125 °C - 2 V -40 °C
RS Stock No. 170-4874
Mfr. Part No.74HC154PW,118
BrandNexperia
MYR1.92
Each (On a Reel of 2500)
units
- - - - Surface Mount TSSOP 24 7.9 x 4.5 x 0.95mm 6 V +125 °C - 2 V -40 °C
RS Stock No. 170-4887
Mfr. Part No.74HC4067DB,118
BrandNexperia
MYR1.836
Each (On a Reel of 1000)
units
- - - - Surface Mount SSOP 24 8.4 x 5.4 x 1.8mm 10 V +125 °C - 2 V -40 °C