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UCD4028B - BCD-TO-DECIMAL DECODER / BINARY-TO-OCTAL DECODER

General Description

The UTC UCD4028B decoder is constructed so that an 8421 BCD code on the four inputs provides a decimal (one-of-ten) decoded output, while a 3-bit binary input provides a decoded octal (one-of-eight) code output with D forced to a logic “0”.

Key Features

  • r>.
  • Diode Protection on All Inputs.
  • Supply Voltage Range = 3V to 15V.
  • Capable of Driving Two Low-power TTL Loads or One Low-Power Schottky TTL Load Over the Rated Temperature Range.
  • Positive Logic Design.
  • Low Outputs on All Illegal Input Combinations.

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Full PDF Text Transcription (Reference)

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UNISONIC TECHNOLOGIES CO., LTD UCD4028B Preliminary BCD-TO-DECIMAL DECODER BINARY-TO-OCTAL DECODER  DESCRIPTION The UTC UCD4028B decoder is constructed so that an 8421 BCD code on the four inputs provides a decimal (one-of-ten) decoded output, while a 3-bit binary input provides a decoded octal (one-of-eight) code output with D forced to a logic “0”. Expanded decoding such as binary-to-hexadecimal (one-of-sixteen), etc., can be achieved by using other UTC UCD4028B devices. The part is useful for code conversion, address decoding, memory selection control, demultiplexing, or readout decoding.  FEATURES * Diode Protection on All Inputs * Supply Voltage Range = 3V to 15V * Capable of Driving Two Low-power TTL Loads or One Low-Power Schottky TTL Load Over the Rated Temperature Range.