AS4C16M16S-7BCNTR

The AS4C16M16S-7BCNTR is a 256-megabit synchronous dynamic random-access memory (SDRAM) from Alliance Memory, Inc. Organized as 16M x 16, this parallel interface DRAM provides high-speed data storage with 143 MHz clock frequency and 5.4ns access time. Designed for commercial temperature range applications, it delivers reliable performance for embedded systems requiring cost-effective volatile memory solutions.

Key Features

• Memory Architecture - 256Mbit capacity organized in 16M x 16 configuration, providing flexible word-width access for diverse system requirements.
• High-Speed Performance - 143 MHz clock frequency with 5.4ns access time and 14ns write cycle time enables responsive data throughput for time-sensitive applications.
• Standard Voltage Operation - 3V to 3.6V supply voltage ensures compatibility with common embedded system power architectures.
• Parallel Interface - Traditional parallel SDRAM interface simplifies integration with legacy processors and controllers using standard memory bus protocols.
• Compact Package - 54-pin TFBGA package (8mm x 8mm) provides space-efficient board layout for designs with limited PCB real estate.
• Commercial Temperature Range - Rated for 0°C to 70°C operation, suitable for indoor and controlled-environment applications.

Typical Applications

• Consumer Electronics - This SDRAM serves as working memory in set-top boxes, digital displays, and multimedia devices where moderate performance and cost optimization are balanced priorities.
• Networking Equipment - Provides buffer memory for routers, switches, and network-attached storage operating in climate-controlled server rooms and telecommunications facilities.
• Office Equipment - Supports data buffering in printers, scanners, and multifunction devices where commercial temperature range and standard voltage operation align with typical office environments.
• Embedded Computing - Acts as main memory or frame buffer in embedded systems and single-board computers designed for indoor commercial applications.

Unique Advantages

• Proven SDRAM Technology: Leverages mature parallel SDRAM architecture with broad ecosystem support, simplifying hardware design and reducing development risk.
• Industry-Standard Footprint: 54-TFBGA package follows established conventions, enabling drop-in compatibility with existing PCB layouts and manufacturing processes.
• Straightforward Integration: Parallel interface eliminates complex serializer/deserializer requirements, reducing BOM cost and board complexity compared to newer serial memory technologies.
• Flexible Supply Sourcing: Standard SDRAM pinout and timing specifications provide multiple sourcing options for supply chain resilience.
• Cost-Effective Capacity: 256Mbit density hits the sweet spot for applications requiring substantial working memory without over-provisioning for budget-conscious designs.
• Compact Form Factor: Small TFBGA package conserves board space while maintaining the parallel interface preferred by many legacy controller designs.

Why Choose the AS4C16M16S-7BCNTR?

This SDRAM is positioned for commercial-grade embedded systems that prioritize proven technology, straightforward integration, and cost efficiency over cutting-edge performance. It's ideal for designs targeting indoor environments where the commercial temperature range is sufficient, and where parallel memory interfaces reduce system complexity. The 256Mbit capacity suits applications with moderate memory requirements, while the standard voltage and package enable compatibility with existing reference designs and controller ecosystems.

For products with longer lifecycles, designers should note the obsolete status and plan accordingly for end-of-life transitions or alternative sourcing strategies.

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Contact our sales team to discuss pricing, availability, and volume discounts for the AS4C16M16S-7BCNTR. Our technical specialists can assist with integration questions and recommend suitable alternatives if this part transitions out of active production.