AS4C32M8SA-7TCNTR

The AS4C32M8SA-7TCNTR is a 256-megabit synchronous dynamic random access memory (SDRAM) device from Alliance Memory, Inc. Organized as 32M x 8, this parallel SDRAM operates at clock frequencies up to 143MHz with an access time of 5.5ns. Designed for commercial temperature applications, it provides reliable volatile memory storage for embedded systems, computing platforms, and industrial equipment requiring cost-effective DRAM solutions.

With a standard 3V to 3.6V supply voltage and 54-pin TSOP II package, this SDRAM integrates seamlessly into existing designs while offering the performance and density needed for data buffering, cache memory, and general-purpose memory applications in commercial operating environments.

Key Features

• Memory Architecture - 256Mbit density organized as 32M x 8, providing flexible byte-wide data access ideal for 8-bit and 16-bit processor interfaces.
• Performance Specifications - 143MHz maximum clock frequency with 5.5ns access time delivers responsive read/write operations for time-sensitive applications.
• Power Supply - Standard 3.3V nominal operation (3V to 3.6V range) ensures compatibility with mainstream logic families and reduces power consumption compared to 5V DRAM technologies.
• Package Format - 54-pin TSOP II package with 10.16mm width offers industry-standard footprint for surface-mount assembly with established manufacturing processes.
• Temperature Range - Commercial grade operating temperature of 0°C to 70°C suits indoor equipment and standard office/laboratory environments.
• Interface Type - Parallel memory interface provides straightforward integration with processors and controllers featuring traditional DRAM bus architectures.

Typical Applications

• Embedded Computing - This SDRAM serves as main memory or data buffer in single-board computers and embedded controllers where moderate density and commercial temperature tolerance align with system requirements.
• Networking Equipment - The device provides packet buffering and routing table storage in switches and routers operating in climate-controlled environments, with its 143MHz clock supporting throughput demands of standard networking protocols.
• Office Automation - Printers, copiers, and multifunction devices utilize this SDRAM for image buffering and job spooling, where the 256Mbit capacity handles document processing while commercial temperature rating matches typical office conditions.
• Test and Measurement - Benchtop instrumentation employs this memory for waveform capture and data acquisition, benefiting from the parallel interface's deterministic timing and the device's ability to sustain continuous read/write cycles.
• Industrial Controls - Programmable logic controllers and HMI systems operating indoors leverage this SDRAM for program storage and data logging in factory automation applications within the 0°C to 70°C operating envelope.

Unique Advantages

• Proven SDRAM Technology: Mature synchronous DRAM architecture ensures predictable behavior and simplifies firmware development with well-established timing specifications and control protocols.
• Cost-Effective Memory Density: 256Mbit capacity delivers sufficient storage for mid-range applications while maintaining competitive pricing compared to higher-density or specialized memory technologies.
• Standard Voltage Operation: 3.3V supply compatibility eliminates the need for voltage level translation when interfacing with modern microprocessors and FPGAs, reducing component count and board complexity.
• Industry-Standard Package: TSOP II footprint leverages existing PCB design libraries and manufacturing experience, accelerating time-to-market and minimizing assembly qualification efforts.
• Byte-Wide Organization: 32M x 8 configuration optimizes bus utilization for applications requiring single-byte granularity, avoiding wasted bandwidth compared to wider memory organizations.
• Established Supply Chain: Active lifecycle status from Alliance Memory ensures ongoing availability for production builds and warranty support over multi-year product lifecycles.

Why Choose AS4C32M8SA-7TCNTR?

The AS4C32M8SA-7TCNTR represents a practical memory solution for designs requiring reliable SDRAM performance in commercial operating environments. Its 32M x 8 organization and 143MHz clock capability address the needs of embedded systems, networking hardware, and industrial controllers where proven technology and cost-effectiveness take priority. The standard TSOP II package and 3.3V operation ensure straightforward integration with existing processor platforms and manufacturing infrastructure.

This SDRAM is ideal for engineering teams developing commercial-grade equipment with moderate memory requirements, particularly when long-term component availability and predictable supply chain management factor into product planning. The active lifecycle status provides confidence for new designs while supporting ongoing production of established products.

Get a Quote Today

Contact our sales team to discuss your memory requirements and receive detailed pricing for the AS4C32M8SA-7TCNTR. Our technical support staff can assist with integration questions, timing analysis, and PCB layout recommendations to ensure successful implementation in your next design.