AS4C16M16D1A-5TIN

The AS4C16M16D1A-5TIN from Alliance Memory is a 256Mbit DDR SDRAM organized as 16M x 16 bits, delivering high-speed parallel memory access for embedded and industrial applications. With a 200MHz clock frequency and 0.7ns access time, this SDRAM provides the bandwidth needed for data-intensive systems while operating from a 2.3V to 2.7V supply voltage.

Designed for extended temperature operation from -40°C to 85°C, this DDR memory solution addresses the demanding requirements of industrial environments where reliability and consistent performance are critical.

Key Features

• Memory Configuration - 256Mbit capacity organized as 16M x 16 bits, providing efficient data storage with a 16-bit wide data bus for balanced performance and pin count.
• DDR SDRAM Technology - Double Data Rate architecture transfers data on both clock edges, achieving effective data rates up to 400MT/s at the 200MHz clock frequency.
• High-Speed Access - 0.7ns access time and 15ns write cycle time enable rapid data transactions for latency-sensitive applications.
• Low Voltage Operation - 2.3V to 2.7V supply voltage range reduces power consumption compared to older 3.3V SDRAM generations while maintaining compatibility with common embedded power rails.
• Extended Temperature Range - Operating range of -40°C to 85°C supports deployment in industrial environments with temperature extremes.
• Industry-Standard Package - 66-TSOP II package (0.400", 10.16mm width) provides compatibility with existing PCB footprints and manufacturing processes.

Typical Applications

• Industrial Control Systems - This DDR SDRAM provides reliable program and data memory for PLCs, motion controllers, and industrial automation equipment where the extended temperature range ensures stable operation in factory floor environments.
• Networking Equipment - The 200MHz clock frequency and 16-bit parallel interface support packet buffering and routing table storage in switches, routers, and network appliances requiring consistent memory bandwidth.
• Embedded Computing - Single-board computers and embedded processors benefit from the 256Mbit capacity and DDR bandwidth for running operating systems and application code in space-constrained designs.
• Test and Measurement - Data acquisition systems and test equipment utilize the fast access time for capturing and processing measurement data in real-time instrumentation applications.

Unique Advantages

• Longevity-Focused Memory Supplier: Alliance Memory specializes in providing long-term availability for memory products, reducing obsolescence risk for designs with extended production lifecycles.
• Pin-Compatible DDR Option: The 66-TSOP II package enables drop-in replacement or second-source options for existing DDR SDRAM designs without PCB modifications.
• Industrial Temperature by Default: The -40°C to 85°C operating range is included in the standard part, eliminating the need to source separate industrial-grade variants.
• Simplified Power Architecture: The 2.3V to 2.7V supply range aligns with common 2.5V power rails, simplifying power supply design and reducing component count.
• Proven DDR1 Technology: Mature DDR SDRAM technology offers well-characterized behavior and established design guidelines, reducing development risk compared to newer memory generations.

Why Choose AS4C16M16D1A-5TIN?

The AS4C16M16D1A-5TIN is an ideal choice for designers seeking a reliable, industrial-grade DDR SDRAM solution with long-term availability. Its combination of 256Mbit density, 200MHz operation, and extended temperature range addresses the core requirements of industrial and embedded applications without over-specifying or adding unnecessary cost.

For applications requiring proven memory technology with predictable supply chain support, this Alliance Memory DDR SDRAM delivers the performance and reliability needed for production designs with multi-year lifecycles.

Get Started

Contact our sales team to discuss your DDR SDRAM requirements, request samples, or obtain volume pricing for the AS4C16M16D1A-5TIN. Our technical support team is available to assist with design-in questions and memory selection guidance.