AS4C16M16S-6TANTR

The AS4C16M16S-6TANTR is a 256-megabit synchronous dynamic random-access memory (SDRAM) from Alliance Memory, Inc., organized as 16M x 16 bits. This parallel-interface DRAM operates at clock frequencies up to 166MHz with an access time of 5.4ns, making it suitable for applications requiring moderate-speed volatile memory storage. The device operates from a 3V to 3.6V supply and is packaged in a standard 54-TSOP II footprint.

Designed for embedded systems and computing applications where compatibility with legacy SDRAM interfaces is required, this memory IC provides reliable data storage with standard JEDEC specifications. The extended operating temperature range of -40°C to 105°C enables deployment in industrial environments.

Key Features

• Memory Architecture - 256-megabit capacity organized as 16M words by 16 bits, providing flexible memory addressing for various system architectures.
• Performance Specifications - 166MHz clock frequency with 5.4ns access time and 12ns write cycle time, delivering consistent read/write performance for synchronous operations.
• Power Supply - Single 3V to 3.6V supply voltage simplifies power management and aligns with standard logic levels in embedded designs.
• Extended Temperature Range - Operating range from -40°C to 105°C (TA) ensures reliable operation in industrial and automotive-adjacent applications where ambient temperatures vary significantly.
• Standard Package - 54-pin TSOP II package with 10.16mm width provides compatibility with established PCB layouts and automated assembly processes.
• Parallel Interface - Traditional parallel memory interface enables direct integration with legacy processors and microcontrollers that support SDRAM protocols.

Typical Applications

• Industrial Control Systems - This SDRAM serves as working memory in programmable logic controllers (PLCs) and human-machine interfaces where the extended temperature range ensures consistent operation in factory floor environments and the parallel interface integrates readily with industrial microcontrollers.
• Embedded Computing Platforms - Provides volatile memory storage for single-board computers and embedded processors that require moderate-capacity SDRAM, with the 16M x 16 organization matching common data bus widths in ARM and MIPS-based systems.
• Legacy System Upgrades - Enables memory replacement or capacity expansion in existing designs originally built around synchronous DRAM, maintaining compatibility with established SDRAM controllers and memory timing specifications.
• Test and Measurement Equipment - The 166MHz operation and predictable access times support data buffering in oscilloscopes, spectrum analyzers, and automated test equipment where moderate-speed data capture and processing occur.
• Communication Infrastructure - Functions as buffer memory in routers, switches, and telecommunications equipment that operate in industrial temperature environments and rely on parallel memory interfaces for packet processing.

Unique Advantages

• Drop-in Compatibility: Standard SDRAM pinout and timing specifications enable direct replacement in existing designs without requiring controller modifications or firmware changes.
• Extended Temperature Reliability: The -40°C to 105°C operating range reduces the need for active cooling or temperature management circuitry in industrial deployments, simplifying thermal design.
• Established Technology Base: Synchronous DRAM architecture provides predictable timing characteristics and simplified controller design compared to newer memory technologies, reducing development complexity for systems requiring moderate performance.
• Single Voltage Operation: The 3V to 3.6V supply eliminates the need for multiple voltage rails, reducing power supply complexity and board space requirements.
• Standard Assembly Process: TSOP II packaging supports conventional surface-mount assembly with established reflow profiles, minimizing manufacturing process development.
• Flexible Organization: The 16M x 16 configuration aligns efficiently with 16-bit and 32-bit processor architectures, optimizing memory utilization without requiring complex interleaving schemes.

Why Choose AS4C16M16S-6TANTR?

This SDRAM represents a proven memory solution for systems requiring standard synchronous DRAM functionality with industrial temperature tolerance. The combination of 166MHz operation, 256-megabit capacity, and extended temperature range addresses the needs of industrial control, embedded computing, and telecommunications applications where reliability and compatibility with existing designs are priorities. The parallel interface and TSOP II package maintain compatibility with established PCB layouts and assembly processes.

For designs where legacy SDRAM interface compatibility is required, or where replacing existing memory components without controller changes is necessary, the AS4C16M16S-6TANTR provides a straightforward integration path. The industrial temperature range extends application scope beyond commercial-grade memory products, while the standard JEDEC specifications ensure predictable electrical and timing behavior.

Contact Our Team

For pricing, availability, or technical assistance integrating the AS4C16M16S-6TANTR into your design, contact our sales and engineering team. We can provide detailed specifications, application guidance, and volume pricing to support your project requirements.