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

...
Read more Read less

Filters

Viewing 1 - 20 of 21 products
Results per page
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. 171-3478
Mfr. Part No.74VHC238FT
BrandToshiba
SGD0.275
Each (In a Pack of 50)
units
- - - - Surface Mount TSSOP 16 5 x 4.4 x 1mm 5.5 V +125 °C AEC-Q100 2 V -40 °C
RS Stock No. 539-9513
Mfr. Part No.TC74HC138AP(F)
BrandToshiba
SGD0.736
Each (In a Pack of 5)
units
- - - - Through Hole PDIP 16 19.25 x 6.4 x 3.5mm 6 V +85 °C - 2 V -40 °C
RS Stock No. 539-8598
Mfr. Part No.TC74AC138P(F)
BrandToshiba
SGD1.492
Each (In a Pack of 5)
units
- - - - Through Hole PDIP 16 19.25 x 6.4 x 3.5mm 5.5 V +85 °C - 2 V -40 °C
RS Stock No. 171-3291
Mfr. Part No.74LCX138FT
BrandToshiba
SGD0.187
Each (On a Reel of 2500)
units
- - - - Surface Mount TSSOP 16 5 x 4.4 x 1mm 3.6 V +125 °C AEC-Q100 1.65 V -40 °C
RS Stock No. 541-9314
Mfr. Part No.TC74HC42AF(F)
BrandToshiba
SGD0.94
Each (In a Pack of 5)
units
- - - - Surface Mount SOP 16 10.3 x 5.3 x 1.5mm 6 V +85 °C - 2 V -40 °C
RS Stock No. 171-3517
Mfr. Part No.74LCX138FT
BrandToshiba
SGD0.405
Each (In a Pack of 25)
units
- - - - Surface Mount TSSOP 16 5 x 4.4 x 1mm 3.6 V +125 °C AEC-Q100 1.65 V -40 °C
RS Stock No. 171-3360
Mfr. Part No.74VHCT138AFT
BrandToshiba
SGD0.201
Each (On a Reel of 2500)
units
- - - - Surface Mount TSSOP 16 5 x 4.4 x 1mm 5.5 V +125 °C AEC-Q100 4.5 V -40 °C
RS Stock No. 540-7759
Mfr. Part No.TC74HC138AF(F)
BrandToshiba
SGD0.456
Each (In a Pack of 5)
units
- - - - Surface Mount SOP 16 10.3 x 5.3 x 1.5mm 6 V +85 °C - 2 V -40 °C
RS Stock No. 171-3556
Mfr. Part No.74HC138D
BrandToshiba
SGD0.469
Each (In a Pack of 50)
units
- - - - Surface Mount SOIC 16 10.2 x 3.9 x 1.38mm 6 V +125 °C - 2 V -40 °C
RS Stock No. 541-9695
Mfr. Part No.TC4511BP(F)
BrandToshiba
SGD1.086
Each (In a Pack of 5)
units
- - - - Through Hole PDIP 16 19.25 x 6.4 x 3.5mm 18 V +85 °C - 3 V -40 °C
RS Stock No. 541-9847
Mfr. Part No.TC74AC138F(F)
BrandToshiba
SGD0.716
Each (In a Pack of 5)
units
- - - - Surface Mount SOP 16 10.3 x 5.3 x 1.5mm 5.5 V +85 °C - 2 V -40 °C
RS Stock No. 406-3409
Mfr. Part No.TC74LCX138FT
BrandToshiba
SGD0.69
Each
units
- - - - Surface Mount TSSOP 16 5 x 4.4 x 1mm 3.6 V +85 °C - 1.65 V -40 °C
RS Stock No. 171-3447
Mfr. Part No.74VHC139FT
BrandToshiba
SGD0.401
Each (In a Pack of 50)
units
- - - - Surface Mount TSSOP 16 5 x 4.4 x 1mm 5.5 V +125 °C AEC-Q100 2 V -40 °C
RS Stock No. 171-3405
Mfr. Part No.74VHCT138AFT
BrandToshiba
SGD0.184
Each (In a Pack of 50)
units
- - - - Surface Mount TSSOP 16 5 x 4.4 x 1mm 5.5 V +125 °C AEC-Q100 4.5 V -40 °C
RS Stock No. 171-3382
Mfr. Part No.74HC138D
BrandToshiba
SGD0.169
Each (On a Reel of 2500)
units
- - - - Surface Mount SOIC 16 10.2 x 3.9 x 1.38mm 6 V +125 °C - 2 V -40 °C
RS Stock No. 171-3433
Mfr. Part No.74VHC138FT
BrandToshiba
SGD0.401
Each (In a Pack of 50)
units
- - - - Surface Mount TSSOP 16 5 x 4.4 x 1mm 5.5 V +125 °C AEC-Q100 2 V -40 °C
RS Stock No. 601-4083
Mfr. Part No.TC4511BF(F)
BrandToshiba
SGD3.14
Each (In a Pack of 5)
units
- - - - Surface Mount SOP 16 10.3 x 5.3 x 1.5mm 18 V +85 °C - 3 V -40 °C
RS Stock No. 171-3320
Mfr. Part No.74VHC139FT
BrandToshiba
SGD0.155
Each (On a Reel of 2500)
units
- - - - Surface Mount TSSOP 16 5 x 4.4 x 1mm 5.5 V +125 °C AEC-Q100 2 V -40 °C
RS Stock No. 171-3318
Mfr. Part No.74VHC138FT
BrandToshiba
SGD0.138
Each (On a Reel of 2500)
units
- - - - Surface Mount TSSOP 16 5 x 4.4 x 1mm 5.5 V +125 °C AEC-Q100 2 V -40 °C
RS Stock No. 171-3332
Mfr. Part No.74VHC238FT
BrandToshiba
SGD0.14
Each (On a Reel of 2500)
units
- - - - Surface Mount TSSOP 16 5 x 4.4 x 1mm 5.5 V +125 °C AEC-Q100 2 V -40 °C