AS4C4M32D1-5BCN

The AS4C4M32D1-5BCN from Alliance Memory is a high-speed 128Mbit DDR SDRAM memory integrated circuit designed for embedded systems requiring reliable parallel memory access. Organized as 4M x 32, this volatile memory device operates at 200MHz clock frequency with 7ns access time, making it suitable for applications demanding fast data throughput and moderate density memory storage.

Key Features

• DDR SDRAM Technology - Double data rate architecture enables data transfer on both rising and falling clock edges, maximizing bandwidth efficiency at 200MHz operation.
• Memory Organization - 4M x 32 configuration (128Mbit total) provides flexible addressing for embedded systems requiring 32-bit wide data paths.
• High-Speed Access - 7ns access time with 12ns write cycle time ensures rapid read and write operations for time-critical applications.
• Low Voltage Operation - 2.3V to 2.7V supply voltage range reduces power consumption while maintaining performance.
• Compact Package - 144-pin LFBGA (12x12mm) package optimizes board space utilization in size-constrained designs.
• Commercial Temperature Range - 0°C to 70°C operating range supports standard commercial and consumer electronics applications.

Typical Applications

• Embedded Computing Systems - This DDR SDRAM serves as main memory in embedded processors and controllers where the 32-bit data width matches common microprocessor bus architectures, enabling efficient data transfers.
• Networking Equipment - The high-speed parallel interface and 200MHz operation make this memory suitable for packet buffering and routing table storage in switches and routers operating at moderate throughput levels.
• Consumer Electronics - Set-top boxes, digital displays, and multimedia devices benefit from the balance of capacity, speed, and commercial temperature rating for cost-sensitive applications.
• Legacy System Support - As an obsolete component, this SDRAM provides replacement memory for maintaining and servicing existing equipment that was originally designed with this specific part.

Unique Advantages

• Proven DDR Architecture: Mature DDR SDRAM technology offers well-understood timing characteristics and broad ecosystem support for straightforward integration.
• Parallel Interface Simplicity: Direct parallel connection eliminates the need for serial protocol overhead, reducing controller complexity in straightforward memory applications.
• Balanced Performance Profile: The 200MHz operation and 7ns access time provide adequate speed for many embedded applications without premium pricing associated with higher-speed memory technologies.
• Standard BGA Footprint: The 144-LFBGA package uses conventional ball grid array construction compatible with standard PCB assembly processes.
• Voltage Compatibility: The 2.3V-2.7V range aligns with common embedded system power rails, simplifying power supply design.

Why Choose AS4C4M32D1-5BCN?

This Alliance Memory DDR SDRAM is positioned for applications requiring moderate-density, high-speed parallel memory with commercial temperature tolerance. The 4M x 32 organization is particularly well-suited for systems with 32-bit processors or data paths where memory bus width matching optimizes throughput.

Note that this component has obsolete lifecycle status. It is recommended for replacement parts in existing designs or for servicing legacy equipment. For new designs, consider current-generation memory solutions that offer active production status and long-term availability support.

Request a Quote

Contact our sales team for pricing, availability, and technical support for the AS4C4M32D1-5BCN. Our team can assist with cross-reference options for new designs or sourcing solutions for legacy system maintenance.