AS4C64M8SA-7TCN

The AS4C64M8SA-7TCN from Alliance Memory, Inc. is a 512Mbit synchronous DRAM configured as 64M x 8, delivering reliable parallel memory performance for embedded systems and industrial applications. Built on proven SDRAM technology, this device operates at 133MHz with a 5.4ns access time, providing fast data throughput for processor-intensive tasks. Its 3V to 3.6V supply voltage and 0°C to 70°C operating range make it suitable for commercial computing and control systems requiring moderate density memory solutions.

Key Features

• Memory Architecture - 512Mbit capacity organized as 64M x 8, optimized for byte-wide data buses common in microcontroller and DSP systems.
• Performance - 133MHz clock frequency with 5.4ns access time enables rapid data retrieval for real-time applications and buffering operations.
• Power Supply - 3V to 3.6V operating voltage aligns with standard 3.3V logic levels, simplifying power distribution in mixed-signal designs.
• Interface - Parallel memory interface provides direct connection to processor memory controllers without requiring additional protocol translation.
• Package - 54-TSOP II (10.16mm width) footprint offers industry-standard pinout for straightforward PCB layout and component sourcing.
• Temperature Range - 0°C to 70°C operational capability supports commercial-grade equipment deployed in controlled environments.

Typical Applications

• Embedded Computing - This SDRAM serves as main system memory in embedded controllers and single-board computers where its parallel interface directly connects to processor memory buses, eliminating conversion overhead.
• Data Buffering - The 512Mbit capacity provides substantial temporary storage for data acquisition systems and communication equipment that capture and process high-speed data streams before transmission or storage.
• Industrial Controls - Commercial temperature range and volatile memory characteristics suit programmable logic controllers and process monitoring systems that require fast working memory for algorithm execution and state management.
• Test and Measurement - Parallel access and synchronous operation enable high-throughput capture and analysis in benchtop instruments where large data sets must be temporarily held during measurement cycles.

Unique Advantages

• Standard Architecture: Widely-supported SDRAM technology ensures compatibility with existing memory controller IP and reduces firmware development complexity.
• Byte-Wide Organization: 8-bit data path matches common microcontroller bus widths, minimizing glue logic and board space compared to wider configurations.
• Established Footprint: 54-TSOP II package provides multiple sourcing options and proven thermal characteristics for reliable manufacturing.
• Moderate Density: 512Mbit capacity balances memory requirements for many embedded applications without oversizing and increasing costs.
• 3.3V Operation: Voltage compatibility with standard logic families simplifies level translation and power supply design in mixed-voltage systems.

Why Choose AS4C64M8SA-7TCN?

This SDRAM targets commercial embedded designs requiring proven parallel memory technology with moderate capacity. Engineers working on industrial controls, data acquisition, or embedded computing platforms will find the 64M x 8 organization and 133MHz operation well-suited to byte-oriented processors and controllers. The standard TSOP II package and 3.3V supply voltage enable straightforward integration into established design frameworks.

While currently obsolete in lifecycle status, existing inventory may serve ongoing production or replacement needs for legacy systems. Designers starting new projects should verify long-term availability with Alliance Memory or consider migration to active-status alternatives with comparable specifications.

Get a Quote

Contact our sales team for pricing, availability, and technical support for the AS4C64M8SA-7TCN. Our component specialists can assist with cross-referencing, alternative recommendations, and volume pricing for your project requirements.