HT12D Decoder IC for RF Module

HT12D Decoder IC Basics

HT12D is a decoder IC for remote control application, commonly in Radio frequency (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 coverts 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 same transmitter.

HT12D Decoder IC Pin Description: 

1. Address pins A0
2. A1
3. A2
4. A3
5. A4
6. A5
7. A6
8. A7
9. GND
10. data pins D0
11. D1
12. D2
13. D3
14. Input
15. Oscillator output
16. Oscillator input
17. Valid Transmission
18. Vcc

HT12D IC 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 valid transmission indicator
• Easy to interface with an RF or IR transmission
• Does not require many external components
• It is 212 series of encoders

Product Specifications

• IC Number: HT12D
• Function of IC: Decoder IC for RF
• Number of pins: 18
• PIN Type: DIP
• Operating voltage: 2.4V-12V
• Package contains: unused and checked 1 piece of HT12D