HT12E is a CMOS technology-based 12-bit Encoder. It is generally used with RF communication system
Features
- Operating voltage 2.4V~12V.
- Low power and high noise immunity CMOS technology.
- Low standby current: 0.1A (Typ.) at VDD=5V.
- Data code has a positive polarity.
- HT12A with a 38kHz carrier for the infrared transmission medium.
- Minimum transmission word Four words for the HT12E.
- The built-in oscillator needs only a 5% resistor.
- Minimal external components.
- 12-bit Encoder IC to be used with HT12D
- Encoded data has 4 Data bits and 8 Address bits
- Commonly used for RF and IR wireless transmission
- Wide supply voltage ranges from 2.4V to 12V, typically 5V is used
- Low standby current of 0.1uA at Vcc=5V
- Available in 16-pin DIP, 20-pin SOP
Applications
- Burglar alarm system.
- Smoke and fire alarm system.
- Garage door controllers.
- Car door controllers.
- Car alarm system.
- Security system.
- Cordless telephones.
- Other remote-control systems.
Specification
| Operating Voltage Range | 2.4 V to 12 V |
| Technology | CMOS |
| Package | DIPˆ‚¬„¢18 |
| Output Current | 1.6 mA |
| Powering Current | 0.3 mA |
| Temperature Range | -50 °C - 125 °C |
Pin Description
| Pin 1 - 8 | These are the 8-bit address bits, which are used to protect your data. We should set the bits in the same pattern on Encoder and Decoder IC to pair them |
| Pin 9 | Connected to the Ground of the circuit |
| Pin 10 - 13 | These four pins are used to send data, the data encoded here will be decoded on HT12D IC sharing the same address bits |
| Pin 14 | This pin has to be connected to the ground (0V) to enable the Transmission |
| Pin 15 & 16 | The IC has a built-in oscillator. This oscillator can be used by connecting these two pins through a 1 M Resistor |
| Pin 17 | The Encoded 12-bit output data can be obtained from this pin |
| Pin 18 | This pin powers the IC, typically +5 V is used. Can range from 2.4 V to 12 V |
FAQs
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