HT12E IC

The HT12E is a 4-bit encoder IC used for remote control applications. It's typically paired with an RF transmitter (like 433MHz modules) and its counterpart HT12D decoder on the receiver end.

HT12E – Encoder IC Overview:

• Encodes 12-bit data (8 address bits + 4 data bits)
• Works with RF/IR modules to send data wirelessly
• Operating Voltage: 2.4V to 12V
• Used in wireless remote control systems, like:
• Garage doors
• Robot control
• Home automation

Pinout (18-pin DIP):

     +----------------+
  A0 |1            18| A7
  A1 |2            17| A6
  A2 |3            16| A5
  A3 |4            15| A4
  A4 |5            14| TE (Transmit Enable)
  A5 |6            13| D3
  A6 |7            12| D2
  A7 |8            11| D1
 VSS |9            10| D0
     +----------------+

A0–A7 Address Inputs (for pairing)

D0–D3 Data Inputs (what you want to send)

TE Transmit Enable (active LOW)

VSS Ground

VDD Supply Voltage (+2.4V to +12V)

How it Works:

1. You set the address bits (A0–A7) to match the receiver's HT12D.
2. Set the data bits (D0–D3) according to what command you want to send (like forward/backward/left/right).
3. Pull the TE pin LOW to start transmission.
4. The data gets modulated by an RF module and sent wirelessly.
5. On the other end, the HT12D decodes it and triggers outputs.

Origin: China

Brand: Generic