The HT12E is a 2^12 encoder in 18 pin DIP package. This is CMOS LSI for remote control system applications. It is capable of encoding information which. The HT12E Encoder ICs are series of CMOS LSIs for Remote Control system applications. They are capable of Encoding 12 bit of information which consists of 8. HT12E Encoder IC can be used only with its pair HT12D. These two ICs together form an Encoder and Decoder pair.
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The 4-bit data that has to be sent has to be given to the pins AD0 to AD1 and an address of 8-bit has to be set using the pins A0 to A7. Its power consumption is very low, standby current is 0.
When the transmission enable TE signal switches to HIGH, the encoder output completes the current cycle and stops as shown above. If you want security you can connect any of the 8 pins to 5V to make it high. So out of the bits 8-bits will be enoder to set address and the remaining 4-bit will be used to transmit data.
D Flip Flop is primarily meant to provide delay as the encoedr of this Flip Flop is same as Enfoder 12 bit parallel data is divided in to 8 address bits and 4 data bits.
HT12E Encoder IC Pin Diagram, Uses, Equivalents & Datasheet
Top menu About Us Contact. Pull the Transmission Enable pin pin 14 to ground to activate transmission. By using these address pins we can provide 8 bit security code for data transmission and multiple receivers may be addressed using the same transmitter. These four pins are used to send data, the data encoded here will be decoded on HT12D IC sharing the same address bits.
We should set the bits in same pattern on Encoder and Decoder IC to pair them. Working Flowchart of HT12E. The IC is has a ht12ee range of operating voltage from 2. They can also be connected to switches to manually send and receive data. The IC has a built in oscillator. Please read the article Top menu About Us Advertise. It is commonly used for radio frequency RF applications. HT12E encodfr Pin Diagram.
This data should be sent to the HT12D for decoding, it can either be sent directly through a wire or by using a wireless medium like RF or IR. This output cycle will repeats as long as the transmission is enabled.
Transmission Timing for HT12E. The encoded bit can be obtained from the Dout pin pin In this image I have made all four data bits as zero lowwhen this is decoded we will get the same kind of bits on the output side of HT12D, similarly we can make any changes on these 4-bits and they will be reflected on the output side of the HT12D decoder IC.
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Can range from 2. Encoedr two ICs together form an Encoder and Decoder pair. These are the 8-bit address bits, which is used to protect your data.
You can know to set up the HT12D after this from here. By using the paired HT12E encoder and Ebcoder decoder we can easily transmit and receive 12 bits of parallel data serially. For decoding a data the IC will requires an oscillator, luckily this IC has one in-built.
HT12E & HT12D Encoder and Decoder IC for RF Modules
In the above circuit I have set the 8-bit address data as 0b, by connecting all address pins to ground. So if you are working on a project which has to transmit a 4-bit data from one end to other either by wire or wireless then h1t2e IC pair will be best suited for you. The encoder will be in the Standby mode when the transmission is disabled.
It is very important that your Decoder should encodeer have this same address for them to talk to each other. The primary function of HT12E is to encode a bit and send it out through the output pin. Connected to the Ground of circuit. This pin has to be connected to Ground 0V to enable the Transmission.
The Encoded 12 bit output data can be obtained from this pin. A dancing light enfoder be easily constructed using a timer wired in astable mode.
This oscillator can be used by connecting these two pins through a 1M Resistor. The HT12E 2 12 series encoder starts a 4 word transmission cycle upon receiving transmission enable signal on TE input. HT12E — Block Diagram.
HT12E is able to operate in a wide voltage range from 2. HT12E simply converts 12 bit parallel data in to serial output which can be transmitted through a RF transmitter. Contents1 Components Required2 Circuit Diagram2.