The D2164A-15 is a dynamic random-access memory (DRAM) chip manufactured by Intel. It's a 64K x 1-bit DRAM, indicating it can store 65,536 bits of data organized as 64,000 individual storage locations, each holding one bit. The "-15" suffix typically refers to its access time, in this case, 150ns. This chip was commonly used in older computer systems and electronic devices requiring volatile memory.

Applications

• Early personal computers (e.g., IBM PC, Apple II)
• Memory expansion cards
• Arcade games
• Industrial control systems
• Data acquisition systems

Features

• 64K x 1-bit Organization: Stores 65,536 bits of data, organized as 64K words of 1 bit each.
• 150ns Access Time: Relatively fast access time for its era, allowing for quick data retrieval.
• Single 5V Power Supply: Operates on a single 5-volt power supply.
• TTL Compatibility: Compatible with standard TTL logic levels.
• Multiplexed Addressing: Row and column addresses are multiplexed on the same address pins to reduce pin count.
• Refresh Required: Dynamic RAM requires periodic refreshing to maintain data.

Benefits

• Memory Storage: Provides temporary storage for data and program instructions.
• Fast Data Access: Offers relatively fast data access compared to other memory technologies of the time.
• TTL Compatible: Enables easy integration with existing TTL logic circuits.
• Suitable for Embedded Systems: Can be used in various embedded systems requiring volatile memory.

Additional Details

The D2164A-15 typically comes in a 16-pin DIP (Dual In-line Package). It requires a refresh cycle to maintain the stored data; otherwise, the data will be lost. The refresh cycle is typically performed every few milliseconds. Further information including detailed timing diagrams, electrical characteristics, and refresh requirements can be found in the original Intel datasheet for this component.