The MD2147H/B is a 4096-bit (4K) static random-access memory (SRAM) organized as 4096 words by 1 bit. This part, supplied by Rochester Electronics, is likely a re-manufactured or continuation part to support legacy systems.

Applications:

• Legacy Computer Systems
• Industrial Control Equipment
• Military and Aerospace Applications
• Instrumentation
• Data Acquisition Systems

Features:

• 4096 x 1 Bit Organization
• Static RAM (SRAM) - No refresh required
• Fast Access Time (specific access time depends on the specific variant, but is typical for SRAM of its generation)
• TTL Compatibility
• Three-State Output

Benefits:

• Data Retention: SRAM retains data as long as power is applied, simplifying system design.
• High Speed: Offers fast access times compared to dynamic RAM (DRAM).
• Easy to Use: Simple interface for reading and writing data.
• Availability: Rochester Electronics ensures the continued availability of this legacy component.
• Drop-in Replacement: Can be used as a direct replacement in existing systems that use the original MD2147H SRAM.

Additional Details:

The MD2147H/B typically operates from a 5V power supply. The three-state output allows for easy connection to a shared data bus. The access time is a critical parameter, determining the maximum operating speed of the system. The static nature of the RAM eliminates the need for refresh circuitry, simplifying the memory controller design. Because Rochester Electronics supplies this part, it is important to verify the exact specifications and manufacturing date to ensure compatibility with existing systems. The package type is also important to consider as different package styles might be available.