AS4C2M32SA-7TCN

The AS4C2M32SA-7TCN from Alliance Memory is a 64-megabit synchronous dynamic random access memory (SDRAM) configured as 2 million words by 32 bits. This parallel-interface DRAM operates at clock frequencies up to 143MHz and delivers a 5.5ns access time, making it suitable for embedded systems requiring moderate-speed memory with a wide data bus. Designed for commercial temperature ranges, this device provides reliable volatile memory storage in a compact 86-pin TSOP II package.

Key Features

• Memory Architecture - 64Mbit capacity organized as 2M x 32, providing a full 32-bit data width that reduces the need for parallel memory arrays in systems requiring wide data buses.
• SDRAM Technology - Synchronous operation at clock frequencies up to 143MHz enables efficient burst transfers and simplified timing control compared to asynchronous DRAM.
• Fast Access Time - 5.5ns access time with 2ns write cycle time supports responsive memory operations in time-sensitive applications.
• Power Supply - Operates from a single 3V to 3.6V supply, compatible with standard 3.3V logic systems and minimizing power distribution complexity.
• Commercial Temperature Range - Rated for 0°C to 70°C ambient operation, suitable for indoor commercial and consumer electronics.
• Package - 86-pin TSOP II package with 10.16mm body width offers high pin density in a surface-mount form factor for automated assembly.

Typical Applications

• Embedded Computing - This SDRAM provides main memory or frame buffer storage in embedded processors and controllers where the 32-bit organization matches common processor data widths, reducing glue logic and improving memory throughput.
• Networking Equipment - The synchronous interface and moderate clock speed make this device suitable for packet buffering and routing tables in switches and routers operating in controlled-environment network closets.
• Point-of-Sale Systems - Commercial temperature ratings and parallel interface support memory requirements in retail terminals and transaction processing systems where reliability within typical retail environments is essential.
• Test and Measurement Instruments - The 64Mbit capacity and fast access time enable data acquisition buffering in benchtop instrumentation where moderate-speed capture and storage are required.
• Consumer Electronics - This volatile memory serves as working storage in set-top boxes, digital displays, and multimedia devices operating in residential temperature conditions.

Unique Advantages

• 32-bit Native Organization: Eliminates the need to parallel multiple narrower memory devices, reducing board space, routing complexity, and component count in systems with 32-bit data paths.
• SDRAM Simplicity: Synchronous operation with system clock streamlines interface timing design compared to asynchronous DRAM, reducing development time and timing verification effort.
• Moderate Density Sweet Spot: 64Mbit capacity provides sufficient memory for many embedded applications without the cost premium of higher-density devices, optimizing system cost.
• Single Supply Operation: 3.3V-only power requirement simplifies power supply design and eliminates multiple voltage rails often needed for other memory technologies.
• Alliance Memory Reliability: Sourced from a memory specialist focused on long-term availability, reducing obsolescence risk for products with multi-year lifecycles.
• Standard Package: 86-pin TSOP II is an established industry-standard package with broad PCB design library support and proven manufacturing compatibility.

Why Choose AS4C2M32SA-7TCN?

The AS4C2M32SA-7TCN is positioned for embedded system designers who need a straightforward, cost-effective synchronous DRAM solution with a native 32-bit interface. Its commercial temperature rating and moderate clock speed make it ideal for cost-sensitive applications in controlled environments where extreme temperature tolerance is not required. The single 3.3V supply and standard TSOP II package ensure compatibility with existing design practices and manufacturing processes.

For applications requiring reliable volatile memory with proven SDRAM technology, this device offers a balance of capacity, speed, and simplicity backed by Alliance Memory's focus on product longevity. Its active lifecycle status and straightforward specification reduce design risk for products targeting multi-year production runs.

Get a Quote

Contact our sales team to discuss your memory requirements and receive pricing for the AS4C2M32SA-7TCN. Our technical support staff can assist with integration guidance and volume availability to support your project timeline.