AS4C8M16S-6TAN

The AS4C8M16S-6TAN from Alliance Memory is a 128Mbit synchronous dynamic RAM (SDRAM) organized as 8M x 16 bits. Built on proven SDRAM technology, this parallel interface memory delivers reliable data storage for embedded systems requiring cost-effective, high-density volatile memory. With a 166MHz clock frequency and 5ns access time, it supports moderate-speed applications across industrial, consumer, and legacy system designs.

Key Features

• Memory Architecture - 128Mbit capacity organized as 8M x 16, providing flexible data width for 16-bit bus applications.
• SDRAM Technology - Synchronous operation with 166MHz clock frequency enables pipelined access and efficient burst transfers.
• Access Performance - 5ns access time and 2ns write cycle time support moderate throughput requirements in embedded designs.
• Power Supply - Standard 3V to 3.6V operation aligns with common embedded system power rails.
• Extended Temperature Range - -40°C to 105°C operating range supports industrial environments and automotive cabin applications.
• Package - 54-TSOP II (0.400", 10.16mm width) surface-mount package optimizes board space in compact designs.

Typical Applications

• Industrial Control Systems - This SDRAM provides working memory for PLCs, HMIs, and motion controllers where the extended temperature rating ensures operation in factory floor environments and the parallel interface simplifies integration with legacy microcontrollers.
• Consumer Electronics - Set-top boxes, digital TVs, and home automation hubs use this memory for frame buffers and program storage, benefiting from the cost-effective SDRAM architecture and moderate speed capabilities.
• Legacy System Support - Equipment manufacturers maintaining older product lines rely on this component for drop-in replacements or production continuity in designs built around parallel SDRAM interfaces.
• Test and Measurement Equipment - Oscilloscopes, spectrum analyzers, and data loggers leverage the 128Mbit density for sample buffering and waveform storage, with the industrial temperature range supporting field deployment.

Unique Advantages

• Proven Technology Platform: SDRAM's mature ecosystem reduces design risk and provides long-term availability for multi-year production programs.
• Cost-Effective Memory Solution: Parallel SDRAM architecture delivers lower cost per bit compared to newer memory technologies for applications not requiring cutting-edge performance.
• Simplified Board Layout: The 54-TSOP II package and parallel interface minimize routing complexity compared to high-speed serial memory alternatives.
• Industrial Temperature Tolerance: -40°C to 105°C operation eliminates the need for additional thermal management in many harsh environment deployments.
• Design Continuity: Maintains pin compatibility and electrical characteristics familiar to engineers supporting existing product platforms.

Why Choose AS4C8M16S-6TAN?

The AS4C8M16S-6TAN addresses the ongoing need for reliable, cost-effective parallel SDRAM in industrial and embedded systems. While this component carries an Obsolete lifecycle status, it serves critical roles in production support, legacy equipment maintenance, and designs where proven SDRAM technology meets performance requirements without the complexity of newer memory standards.

This memory is ideal for engineers supporting multi-year production runs, maintaining legacy designs, or developing cost-sensitive applications where the parallel SDRAM interface and industrial temperature range provide sufficient capability. The 128Mbit density and 8M x 16 organization balance capacity with manageable bus width for typical embedded applications.

Request a Quote

Contact our sales team to discuss availability, pricing, and technical support for the AS4C8M16S-6TAN. Our application engineers can help evaluate this component for your design requirements and recommend suitable alternatives if lifecycle considerations impact your project timeline.