Encoder/Decoder 20-Pin SOIC W

The HD-6409 Manchester Encoder-Decoder (MED) is a highspeed, low power device manufactured using self-alignedsilicon gate technology. The device is intended for use inserial data communication, and can be operated in either oftwo modes. In the converter mode, the MED converts Nonreturn-to-Zero code (NRZ) into Manchester code anddecodes Manchester code into Nonreturn-to-Zero code. Forserial data communication, Manchester code does not havesome of the deficiencies inherent in Nonreturn-to-Zero code.For instance, use of the MED on a serial line eliminates DCcomponents, provides clock recovery, and gives a relativelyhigh degree of noise immunity. Because the MED convertsthe most commonly used code (NRZ) to Manchester code,the advantages of using Manchester code are easily realizedin a serial data link.

• Converter or Repeater Mode
• Independent Manchester Encoder and Decoder Operation
• Static to One Megabit/sec Data Rate Guaranteed
• Low Bit Error Rate
• Digital PLL Clock Recovery
• On Chip Oscillator
• Low Operating Power: 50mW Typical at +5V
• Pb-Free Available (RoHS Compliant)