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PAL16R4DCN Specifications

Detailed technical information and Application Scenarios

Product Details

PartNumberManufactorQuantityAvailability
PAL16R4DCNMMI490Yes

PAL16R4DCN** is a Programmable Array Logic (PAL) device manufactured by **Monolithic Memories Inc.

The PAL16R4DCN is a Programmable Array Logic (PAL) device manufactured by Monolithic Memories Inc. (MMI).

Specifications:

  • Device Type: PAL (Programmable Array Logic)
  • Family: PAL16R Series
  • Technology: Bipolar (TTL)
  • Package: DIP (Dual In-line Package)
  • Pin Count: 20 pins
  • Speed Grade: Standard (varies by suffix)
  • Operating Voltage: 5V (TTL-compatible)
  • Input/Output Configuration: Registered outputs with feedback
  • Macrocells: 8 dedicated outputs (4 registered, 4 combinational)
  • Programmable AND Array: Fixed OR array

Descriptions:

  • The PAL16R4DCN is a registered PAL device with 16 inputs and 4 registered outputs.
  • It features a fixed OR array and a programmable AND array for logic implementation.
  • The outputs are registered (flip-flops) with feedback for sequential logic applications.
  • Commonly used in digital systems for state machines, counters, and control logic.

Features:

  • 16 Inputs (including feedback)
  • 4 Registered Outputs (with clocked D-type flip-flops)
  • 4 Combinational I/O pins
  • Programmable AND Array for custom logic functions
  • TTL-Compatible inputs and outputs
  • High-Speed Operation (varies by speed grade)
  • Electrically Erasable (EE) or One-Time Programmable (OTP) depending on variant

This device is now considered obsolete, as modern CPLDs and FPGAs have largely replaced PALs.

(Note: Always verify datasheets for exact specifications, as variations may exist.)

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