HT12D (RF Decoder) IC

The HT12D operates by continuously comparing the received serial data with its local address settings. It is capable of decoding 12 bits of information, consisting of 8 address bits and 4 data bits. For successful communication, the decoder must be paired with an encoder (such as the HT12E) that shares the same address and data format. The IC checks the received codes three times consecutively; if no error is found, it decodes the data and activates the corresponding output pins. A successful decoding is indicated by the VT (Valid Transmission) pin going HIGH.

Features:

• 12-Bit Decoding:ÊDecodes 8 address bits and 4 data bits for up to 256 unique security combinations.
• Valid Transmission Indicator:ÊIncludes a dedicated VT pin that signals when data has been successfully decoded.
• High Noise Immunity:ÊUtilizes low-power CMOS technology designed for reliable operation in noisy RF environments.
• Low Standby Current:ÊFeatures an ultra-low standby current of typicallyÊ0.1µAÊat 5V, ideal for battery-powered devices.
• Integrated Oscillator:ÊBuilt-in oscillator requires only a simple external resistor (typically 5%) to set the frequency.

Package Includes:

• 1 x HT12D RF Decoder IC (DIP-18 Package).Ê