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DM74LS471N 60 ns, (256 x 8) 2048-bit TTL PROM
Description:
- Function: A 2048-bit TTL PROM structured as 256 x 8.
- Access time: 60 ns.
- Data Retention: Approximately 10 years.
- Package type: 20-pin DIP (Dual In-line Package).
- Manufacturer: National Semiconductor (now Texas Instruments).
- Memory is organized as 256 words × 8 bits, resulting in a significant 2048-bit storage capacity.
- Access Time: Has a fast 60 nanosecond access time, ensuring quick retrieval of stored data.
- Information Retention: Assures consistent and stable memory storage for approximately ten years.
- Operating Voltage: Designed to work with a normal 5V TTL.
Specifications:
- Memory Size: 2048 bits (256 words x 8 bits per word).
- Operating Voltage: 5V.
- Input Voltage Levels:
- VIL (max): 0.8V.
- VIH (min): 2V.
- Output Voltage Levels:
- VOL (max): 0.4V.
- VOH (min): 2.4V.
- Power Consumption: 135 mW.
- Programming Method: Usually uses a specialized programming device and is not electrically erasable, which means it maintains the data written until exposed to UV light for erasure.
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