The AM27S21PC is a 1024-bit (256 x 4) Schottky PROM (Programmable Read-Only Memory) manufactured by AMD. This device is engineered for applications where speed and non-volatility are crucial. Utilizing Schottky bipolar technology, the AM27S21PC offers fast access times, making it suitable for control memories, lookup tables, and code conversion applications.

Applications:

• Control memories
• Lookup tables
• Code converters
• Character generators
• Microprogram storage

Features:

• 1024-bit (256 x 4) memory organization
• Schottky bipolar technology for high speed
• Fast access time
• TTL compatible inputs and outputs
• Open collector outputs
• Programmable via fusible links

Benefits:

• Fast data retrieval enhances system performance.
• TTL compatibility simplifies integration with existing digital circuits.
• Non-volatile storage ensures data is retained without power.
• Programmability allows customization for specific applications.

Additional Details:

The AM27S21PC is housed in a 16-pin DIP (Dual In-line Package). Programming involves selectively blowing internal fusible links to store the desired data pattern. Its open collector outputs facilitate memory expansion and wired-OR configurations. A stable +5V power supply is required for optimal operation. Operating temperature ranges typically from 0°C to +70°C. The PROM is designed for reliable performance in various environments. Address inputs select the desired memory location, and an output enable (OE) pin controls the output state.