AS4C4M16S-6TIN

The AS4C4M16S-6TIN from Alliance Memory is a 64-megabit synchronous dynamic random access memory (SDRAM) organized as 4M x 16 bits. This parallel SDRAM delivers reliable performance with 166MHz clock frequency and 5.4ns access time, making it suitable for embedded systems, industrial controls, and legacy system upgrades requiring high-speed volatile memory in a compact 54-pin TSOP II package.

Key Features

• Memory Architecture - 64Mbit capacity organized as 4M words by 16 bits, providing efficient data storage and retrieval for 16-bit bus systems.
• Performance Specifications - Operates at 166MHz clock frequency with 5.4ns access time, delivering fast data throughput for time-sensitive applications.
• Power Supply - Single 3V to 3.6V supply voltage simplifies power design and reduces energy consumption compared to legacy 5V memory devices.
• Industrial Temperature Range - Rated for -40°C to 85°C operation, ensuring reliable performance across harsh industrial and automotive environments.
• Package Configuration - 54-pin TSOP II package with 10.16mm width provides a space-efficient footprint for high-density board designs.

Typical Applications

• Industrial Automation - This SDRAM provides reliable memory for PLCs and HMI systems where the extended temperature tolerance ensures consistent operation in factory environments.
• Legacy System Upgrades - When upgrading or maintaining older embedded systems, this parallel SDRAM serves as a direct replacement for obsolete memory components, extending equipment service life.
• Communications Equipment - The 166MHz clock speed supports buffering and data processing in routers, switches, and telecommunications infrastructure where moderate bandwidth is required.
• Test and Measurement Instruments - Instruments requiring temporary data storage benefit from the fast access time and parallel interface for real-time data capture and analysis.
• Embedded Computing - General-purpose embedded systems running on 16-bit architectures use this SDRAM for program execution and data storage in cost-sensitive designs.

Unique Advantages

• Direct Drop-In Replacement: The standard SDRAM architecture and TSOP II footprint simplify board redesigns when sourcing alternatives for discontinued parts.
• Simplified Power Design: Single 3.3V supply operation reduces BOM complexity and power regulation requirements compared to multi-voltage memory solutions.
• Industrial-Grade Reliability: Extended temperature rating from -40°C to 85°C ensures stable operation in demanding environments without additional thermal management.
• Proven SDRAM Technology: Mature synchronous DRAM technology provides predictable timing characteristics and well-documented integration procedures.
• Compact Footprint: The 54-pin TSOP II package maximizes board space efficiency while maintaining industry-standard pin compatibility.
• Alliance Memory Support: Sourcing from Alliance Memory provides access to long-term supply commitments and technical support for legacy memory solutions.

Why Choose AS4C4M16S-6TIN?

The AS4C4M16S-6TIN represents a practical choice for engineers maintaining or designing systems that require parallel SDRAM with industrial temperature ratings. Its combination of 64Mbit capacity, 166MHz performance, and wide operating temperature range makes it well-suited for embedded applications where reliability and temperature tolerance are essential. The standard TSOP II package and 3.3V supply voltage align with common design practices, reducing integration effort.

This memory component is particularly valuable for legacy system support and cost-sensitive industrial designs where proven SDRAM technology meets application requirements without over-specification. Alliance Memory's focus on long-term availability helps mitigate supply chain risks associated with memory component obsolescence.

Request a Quote

For pricing, availability, and technical specifications on the AS4C4M16S-6TIN 64Mbit SDRAM, please contact our sales team. We can provide volume pricing, lead time information, and application support to help you integrate this memory solution into your design.