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CDP1874C - High-Speed 8-Bit Input and Output Ports

Description

The CDP1872C, CDP1874C and CDP1875C devices are high-speed 8-bit parallel input and output ports designed for use in the CDP1800 microprocessor system and for general use in other microprocessor systems.

The CDP1872C and CDP1874C are 8-bit input ports; the CDP1875C is an 8-bit output port.

Features

  • Parallel 8-Bit Input/Output Register with Buffered Outputs.
  • High-Speed Data-In to Data-Out 85ns (Max) at VDD = 5V.
  • Flexible.

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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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CDP1872C, CDP1874C, CDP1875C March 1997 High-Speed 8-Bit Input and Output Ports Description The CDP1872C, CDP1874C and CDP1875C devices are high-speed 8-bit parallel input and output ports designed for use in the CDP1800 microprocessor system and for general use in other microprocessor systems. The CDP1872C and CDP1874C are 8-bit input ports; the CDP1875C is an 8-bit output port. These devices have flexible capabilities as buffers and data latches and are reset by CLR input when the data strobe is not active. The CDP1872C and CDP1874C are functionally identical except for device selects.The CDP1872C has one active low and one active high select; the CDP1874C has two active high device selects. These devices also feature Three-state outputs when deselected.
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