Digi-Key carries Holtek parts. See www.digikey.com and check if they have the ones you need. They carry the HL-12F line, not sure about the one you want.
I’m trying to make out an application with HT12E & HT12D. but my Tx doesn’t send the data out. HT12E IC has power ON active high pins for A0~A7 & AD8~AD11. but I cant get high at any of those pins. To send the data, the Data pin has to be made ’0′. Im using TWS434 & RWS 434 RF modules for communication. What values or Resistors are suitable to work between HT12E & HT12D. I’m using supply of 4.5VDC each for both TX & RX. Pls help me…….