HT12D & HT12E IC

Description

HT12D Decoder IC

HT12D is a decoder IC for remote control applications, commonly in Radiofrequency (RF) wireless applications, and it is 2 series decoders. We can transmit 12 bits of parallel data serially by using HT12E and HT12D. HT12D is a simple Decoder IC that converts serial data to its input through RF to 12 bits parallel data in which there are 4 data bits and 8 address bits. These 8 bits addresses are security code for 4 bits data, which means we can provide 8 bits security code for 4 bits data and can use multiple receivers by using the same transmitter.

Features

• Range of Operating voltage: 2.4V~12V
• CMOS technology with low power and high noise immunity
• Standby current: low
• Decoding bits: 12 bits of information
• HT12D bits classification: 4 data bits and 8 address bits
• Oscillator: Built-in and needs only 5% resistors
• It has a valid transmission indicator
• Easy to interface with an RF or IR transmission
• Does not require any external components
• It is 212 series of encoders

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.

HT12E Encoder IC

HT12E is an encoder IC for Remote control applications, commonly used for Radio Frequency (RF) application and it is 2 series IC. We can transmit and receive 12 bits of parallel data serially by using HT12E and HT12D paired. HT12E is a simple Encoder IC that converts serial data to its input through RF to 12 bits parallel data in which there are 4 data bits and 8 address bits. These 8 bits addresses are security code for 4 bits data, means we can provide 8 bits security code for 4 bits data and can use multiple receivers by using the same transmitter.

Features

• Operating voltage 2.4V~12V.
• Low power and high noise immunity CMOS technology.
• Low standby current: 0.1A (Typ.) at VDD=5V.
• The 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.