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庫存編號 689-8709
製造零件編號MC74HC138ADG
TWD18.40
/個 (每包:5個)
單位
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V +125 °C - 2 V -55 °C
RS庫存編號 806-1413
製造零件編號MC74HC138ADR2G
TWD11.50
Each (On a Tape of 50)
單位
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V +125 °C - 2 V -55 °C
RS庫存編號 122-0107
製造零件編號MC74HC138ADG
TWD13.50
毎管:48 個
單位
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V +125 °C - 2 V -55 °C
RS庫存編號 170-3561
製造零件編號MC74HC138ADR2G
TWD3.60
個 (在毎卷:2500)
單位
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V +125 °C - 2 V -55 °C
RS庫存編號 163-0548
製造零件編號MC14543BDR2G
TWD5.70
個 (在毎卷:2500)
單位
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 18 V +125 °C - -0.5 V -55 °C
RS庫存編號 806-3309
製造零件編號MC14543BDR2G
TWD13.50
/個 (每包:25個)
單位
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 18 V +125 °C - -0.5 V -55 °C
RS庫存編號 184-4262
製造零件編號MC14543BDG
TWD14.40
毎管:48 個
單位
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm +18 V +125 °C AEC-Q100 -5 V -55 °C
RS庫存編號 802-1358
製造零件編號74VHC138M
TWD26.80
毎管:48 個
單位
- - - - Surface Mount SOIC 16 10 x 3.988 x 1.499mm 5.5 V +85 °C - 2 V -40 °C
RS庫存編號 806-2163
製造零件編號MC74AC138DG
TWD11.20
/個 (每包:25個)
單位
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V +85 °C - 2 V -40 °C
RS庫存編號 163-0573
製造零件編號MC74AC138DG
TWD14.60
毎管:48 個
單位
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V +85 °C - 2 V -40 °C
RS庫存編號 186-9151
製造零件編號MC14511BDR2G
TWD18.60
/個 (每包:25個)
單位
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 18 V +125 °C AEC-Q100 3 V -55 °C
RS庫存編號 166-1972
製造零件編號74ACT139SCX
TWD10.30
個 (在毎卷:2500)
單位
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 5.5 V +85 °C - 4.5 V -40 °C
RS庫存編號 806-2270
製造零件編號MC74ACT138DG
TWD14.30
/個 (每包:25個)
單位
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 5.5 V +85 °C - 4.5 V -40 °C
RS庫存編號 145-2971
製造零件編號MC74ACT138DG
TWD16.30
毎管:48 個
單位
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 5.5 V +85 °C - 4.5 V -40 °C
RS庫存編號 806-3311
製造零件編號MC14555BDG
TWD20.40
/個 (每包:20個)
單位
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 18 V +125 °C - 3 V -55 °C
RS庫存編號 145-4499
製造零件編號74LCX138M
TWD25.40
毎管:48 個
單位
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 3.6 V +85 °C - 2 V -40 °C
RS庫存編號 761-4482
製造零件編號MM74HC138MX
TWD18.40
/個 (每包:10個)
單位
- - - - Surface Mount SOIC 16 10 x 6.198 x 1.499mm 6 V +85 °C - 2 V -40 °C
RS庫存編號 166-1721
製造零件編號NC7SZ19P6X
TWD2.70
個 (在毎卷:3000)
單位
- - - - Surface Mount SC-70 6 2 x 1.25 x 1mm 5.5 V +85 °C - 1.65 V -40 °C
RS庫存編號 125-0046
製造零件編號MC74VHC139DTR2G
TWD6.10
個 (在毎卷:2500)
單位
- - - - Surface Mount TSSOP 16 5.1 x 4.5 x 1.05mm 5.5 V +125 °C - 2 V -55 °C
RS庫存編號 145-4506
製造零件編號MM74HC138M
TWD18.60
毎管:48 個
單位
- - - - Surface Mount SOIC 16 10 x 4 x 1.5mm 6 V 85 °C - 2 V -40 °C