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PLS173 - Programmable logic array

General Description

The PLS173 is a two-level logic element consisting of 42 AND gates and 10 OR gates with fusible link connections for programming I/O polarity and direction.

All AND gates are linked to 12 inputs (I) and 10 bidirectional I/O lines (B).

Key Features

  • I/O propagation delay: 30ns (max. ).
  • 12 inputs.
  • 42 AND gates.
  • 10 OR gates.
  • 10 bidirectional I/O lines.
  • Active-High or -Low outputs.
  • 42 product terms:.
  • 32 logic terms.
  • 10 control terms PIN.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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Philips Semiconductors Programmable Logic Devices Product specification Programmable logic array (22 × 42 × 10) PLS173 DESCRIPTION The PLS173 is a two-level logic element consisting of 42 AND gates and 10 OR gates with fusible link connections for programming I/O polarity and direction. All AND gates are linked to 12 inputs (I) and 10 bidirectional I/O lines (B). These yield variable I/O gate configurations via 10 direction control gates (D), ranging from 22 inputs to 10 outputs. On-chip T/C buffers couple either True (I, B) or Complement (I, B) input polarities to all AND gates, whose outputs can be optionally linked to all OR gates. Their output polarity, in turn, is individually programmable through a set of EX-OR gates for implementing AND/OR or AND/NOR logic functions.