The DM54S571J is a 256-Bit Programmable Read-Only Memory (PROM) organized as 32 words of 8 bits each, belonging to the 54/74 series of TTL (Transistor-Transistor Logic) integrated circuits, originally manufactured by National Semiconductor (now Texas Instruments). These PROMs are designed for implementing custom logic functions or storing fixed data in digital systems.

Applications:

• Microprogram Storage
• Code Conversion
• Lookup Tables
• Character Generators
• Custom Logic Functions

Features:

• 256-Bit Memory Capacity (32 Words x 8 Bits)
• Programmable Read-Only Memory
• TTL Logic Family
• High Speed Operation
• 3-STATE Outputs for Bus Interfacing

Benefits:

• Allows for implementing custom logic without complex circuitry
• Provides fast access to stored data or code
• Non-volatile memory ensures data retention even without power
• Enables flexible design for various digital applications

Technical Specifications:

The DM54S571J typically operates with a supply voltage (VCC) of 5V. It features a typical access time of around 50ns. Programming is done via fusible links. The device is available in a 16-pin ceramic DIP (Dual In-line Package). It is designed to operate over the full military temperature range of -55°C to +125°C.