AS4C64M8D2-25BIN

The AS4C64M8D2-25BIN is a high-performance 512Mbit DDR2 SDRAM from Alliance Memory organized as 64M x 8 bits. This parallel-interface memory device operates at a 400MHz clock frequency and delivers 0.4ns access time, providing the bandwidth needed for demanding embedded applications.

Designed with an extended operating temperature range of -40°C to 85°C, this DDR2 SDRAM is well-suited for industrial environments where temperature stability is essential. The device is housed in a compact 60-TFBGA package with a 1.7V to 1.9V supply voltage, balancing performance with power efficiency.

Key Features

• Memory Configuration - 512Mbit capacity organized as 64M x 8 bits, providing ample storage for system code, data buffers, and runtime memory requirements.
• High-Speed DDR2 Interface - 400MHz clock frequency with 0.4ns access time enables high-bandwidth data transfers through the parallel memory interface.
• Industrial Temperature Support - Operates reliably across -40°C to 85°C temperature range, meeting the demands of industrial and harsh environment applications.
• Low Voltage Operation - 1.7V to 1.9V supply voltage reduces power consumption compared to standard voltage DDR2 devices.
• Compact Package - 60-TFBGA (8x10mm) package enables space-efficient PCB designs while maintaining thermal performance.
• Write Cycle Time - 15ns write cycle time per word/page supports efficient memory write operations.

Typical Applications

• Industrial Automation - This DDR2 SDRAM provides reliable memory for PLCs, HMIs, and industrial controllers where the -40°C to 85°C operating range ensures consistent performance in factory floor environments with temperature fluctuations.
• Embedded Computing Systems - The 64M x 8 organization and parallel interface make this device suitable for embedded processors requiring high-bandwidth volatile memory for system operation and data processing.
• Networking Equipment - Industrial-grade networking devices such as managed switches and routers benefit from the extended temperature range and 400MHz clock speed for packet buffering and routing table storage.
• Transportation Systems - Railway signaling, traffic control systems, and fleet management equipment can leverage the robust temperature specifications for reliable operation in outdoor and vehicle-mounted installations.
• Building Automation - HVAC controllers, security systems, and building management platforms benefit from the compact 60-FBGA footprint and industrial temperature rating for distributed installations.

Unique Advantages

• Extended Product Lifecycle: Alliance Memory specializes in long-term availability, helping reduce redesign costs and qualification cycles for products with multi-year production runs.
• Industry-Standard Footprint: The 60-FBGA (8x10mm) package follows standard DDR2 pinouts, simplifying drop-in replacement and second-source strategies.
• Full Industrial Temperature Range: The -40°C to 85°C specification eliminates the need for thermal management solutions in many industrial designs, reducing BOM cost and complexity.
• Optimized Power Efficiency: The 1.7V to 1.9V supply voltage range enables lower power consumption and reduced thermal dissipation in space-constrained designs.
• Active Lifecycle Status: This device is currently in active production, ensuring reliable supply for ongoing and new design projects.

Why Choose AS4C64M8D2-25BIN?

The AS4C64M8D2-25BIN is an excellent choice for engineers designing industrial embedded systems that require high-performance DDR2 memory with guaranteed operation across harsh environmental conditions. The combination of 512Mbit density, 400MHz clock speed, and full industrial temperature support makes it a versatile solution for applications ranging from factory automation to transportation infrastructure.

Alliance Memory's commitment to long-term product availability means designers can confidently specify this device for products with extended lifecycle requirements. The standard DDR2 interface and footprint ensure compatibility with existing chipsets while the industrial-grade specifications provide the reliability needed for mission-critical systems.

Request Information

Contact our sales team for pricing, availability, and technical support for the AS4C64M8D2-25BIN DDR2 SDRAM. Our applications engineers can assist with design integration and help identify the optimal memory solution for your specific requirements.