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The PAL16R6BCN is a Programmable Array Logic (PAL) device manufactured by Monolithic Memories, Inc. (MMI).

Specifications:

• Device Type: PAL (Programmable Array Logic)
• Part Number: PAL16R6BCN
• Technology: Bipolar (TTL)
• Package: 20-pin DIP (Dual In-line Package)
• Operating Voltage: 5V
• Speed Grade: Typically 25 ns (tpd)
• Number of Inputs: 16
• Number of Outputs: 6 (Registered)
• Macrocells: 6 (D-type flip-flops with feedback)
• Power Consumption: Moderate (varies based on usage)
• Operating Temperature: Commercial (0°C to +75°C)

Descriptions:

The PAL16R6BCN is a registered PAL device, meaning its outputs are clocked through flip-flops, making it suitable for sequential logic applications. It features a fixed OR array and a programmable AND array, allowing users to define custom logic functions.

Features:

• Registered Outputs: 6 D-type flip-flops for synchronous operation.
• Combinational & Sequential Logic: Supports both combinational and sequential circuit designs.
• Programmable AND Array: Allows custom logic implementation.
• Fixed OR Array: Predefined OR gates for output macrocells.
• TTL-Compatible Inputs/Outputs: Ensures compatibility with standard logic levels.
• Feedback Paths: Outputs can be fed back into the AND array for state machine designs.
• Wide Operating Range: Suitable for industrial and commercial applications.

This device was commonly used in digital logic designs before the widespread adoption of CPLDs and FPGAs.