AS4C16M16SA-7TCNTR

The AS4C16M16SA-7TCNTR is a 256-megabit synchronous dynamic random access memory (SDRAM) from Alliance Memory, Inc. This parallel interface DRAM features a 16M x 16 organization and operates at clock frequencies up to 166MHz with a 5.4ns access time. Designed for commercial temperature applications, this memory IC delivers reliable, high-speed data storage for embedded systems, networking equipment, and computing platforms.

Key Features

• Memory Architecture - 256Mbit total capacity organized as 16M x 16, providing efficient data width for system designs requiring word-level access.
• High-Speed Performance - 166MHz clock frequency with 5.4ns access time enables fast data retrieval for time-sensitive applications.
• SDRAM Technology - Synchronous operation with clock-synchronized data transfers simplifies timing design and improves system performance.
• Power Supply - Single 3V to 3.6V supply voltage reduces power distribution complexity and enables compatibility with standard 3.3V logic systems.
• Package Options - 54-pin TSOP II package (10.16mm width) offers space-efficient board mounting for dense PCB layouts.
• Operating Range - Commercial temperature range of 0°C to 70°C supports standard indoor and climate-controlled environments.

Typical Applications

• Embedded Computing Systems - This SDRAM provides main memory or frame buffer storage for embedded processors where the 16-bit data width matches common microcontroller and DSP architectures, enabling efficient data transfer without width conversion overhead.
• Networking Equipment - Ideal for routers, switches, and network interface cards where high-speed buffering at 166MHz supports packet processing and data routing tasks while maintaining low latency.
• Consumer Electronics - The 256Mbit capacity and synchronous operation make this memory suitable for set-top boxes, digital displays, and multimedia devices that require fast access to video buffers and application code.
• Industrial Control Systems - Provides reliable data storage for programmable logic controllers (PLCs) and process control equipment operating in standard industrial environments within the 0°C to 70°C temperature range.
• Telecommunications Infrastructure - Supports base station controllers, VoIP gateways, and communication modules where the parallel interface and synchronous timing facilitate integration with telecom processors.

Unique Advantages

• Simplified Timing Design: Synchronous operation eliminates complex asynchronous timing calculations, reducing design time and improving signal integrity in high-speed systems.
• Reduced Component Count: Single 3.3V supply voltage eliminates the need for multiple power rails and associated regulation circuitry, simplifying BOM and reducing board space.
• Industry-Standard Footprint: 54-TSOP II package is a widely recognized form factor with established PCB layout guidelines and proven manufacturing reliability.
• Proven Technology Platform: SDRAM architecture offers mature, well-understood performance characteristics with extensive industry support for drivers, controllers, and design tools.
• Active Lifecycle Status: Current production status ensures long-term availability for new designs and existing product refreshes, reducing obsolescence risk.
• Cost-Effective Density: 256Mbit capacity provides sufficient memory for many embedded applications at competitive pricing compared to higher-density or specialized memory technologies.

Why Choose AS4C16M16SA-7TCNTR?

The AS4C16M16SA-7TCNTR delivers proven SDRAM performance in a space-efficient package suitable for commercial embedded systems, networking hardware, and consumer electronics. With its 166MHz operating frequency and 16-bit organization, this memory IC addresses the requirements of designs needing moderate density and fast synchronous access without the complexity of DDR technologies.

Alliance Memory's focus on legacy and mainstream memory solutions makes the AS4C16M16SA-7TCNTR an ideal choice for long lifecycle designs, product upgrades requiring pin-compatible replacements, and cost-sensitive applications where established SDRAM technology provides the right balance of performance, reliability, and value.

Request a Quote

Contact our sales team to discuss pricing, availability, and technical support for the AS4C16M16SA-7TCNTR. Our experts can help you evaluate whether this SDRAM solution meets your specific memory requirements and provide guidance on integration, sourcing, and long-term supply planning.