General Description
The main application area for the HT12M device is for remote control doorbells working together with HT12E. Containing all the functions of the Holtek HT12D decoder and with an added amplifier and melody generator, the device eliminates the need for customers to incorporate an external op-amp and melody generator IC within their product applications, in the process significantly reducing overall product costs.
In addition to being fully compatible with the HT12D circuitry, the device includes the following features; internal Inverting AMP with can also operate as standard independent inverter, internal 2 channel tone generator and current type Audio output.

FEATUREs
• Operating voltage: 2.4V~5.0V
• Built-in AMP
• 2channel dual tone generator
• One Pin oscillator
• Current type D/A Output
• HT12E encoder pair with
• Tone optional: Ding-Dong/Westminster tunes
• 16-pin DIP package