AS4C64M8SD-7TCNTR

The AS4C64M8SD-7TCNTR is a 512Mbit synchronous dynamic random access memory (SDRAM) from Alliance Memory, Inc. organized as 64M x 8 with LVTTL interface. This volatile DRAM solution operates at 133MHz clock frequency with 5.4ns access time, making it well-suited for embedded systems, networking equipment, and general-purpose computing applications that require high-bandwidth memory in a compact form factor. With a commercial temperature range of 0°C to 70°C and a standard 3V to 3.6V power supply, this SDRAM provides reliable, cost-effective memory for mainstream designs.

Key Features

• Memory Architecture - 512Mbit density organized as 64M x 8, providing 64 million addressable byte locations for flexible data storage and access patterns.
• High-Speed Performance - 133MHz clock frequency with 5.4ns access time enables rapid data transfers for time-sensitive applications.
• LVTTL Interface - Low-voltage TTL signaling ensures compatibility with 3.3V logic systems while reducing power consumption compared to standard TTL levels.
• Power Supply - Single 3V to 3.6V supply voltage simplifies power design and reduces component count.
• Commercial Temperature Range - Operates reliably from 0°C to 70°C, covering standard indoor and controlled-environment applications.
• 54-TSOP II Package - Compact 0.400" (10.16mm) width thin small-outline package saves PCB space while providing industry-standard footprint.

Typical Applications

• Embedded Computing Systems - This SDRAM serves as main system memory in microprocessor-based embedded designs where the 133MHz clock rate and byte-wide organization match typical 32-bit processor bus architectures, enabling efficient data access patterns.
• Networking Equipment - The device provides buffer memory for routers, switches, and network interface cards where the 5.4ns access time supports packet buffering and forwarding operations at moderate throughput rates.
• Printer and Imaging Systems - This memory supports raster image processing and print buffering in laser printers and multifunction devices where the 512Mbit capacity accommodates high-resolution page data.
• Set-Top Boxes and Digital Media Devices - The SDRAM functions as program memory and buffer storage in consumer electronics where cost-effective volatile memory is needed for video decoding and menu systems.
• Test and Measurement Instruments - This device provides data acquisition buffering in benchtop instruments where reliable commercial-grade memory supports waveform capture and analysis functions.

Unique Advantages

• Proven SDRAM Technology: Leverages mature, widely-supported synchronous DRAM architecture that simplifies controller design and reduces development risk compared to newer memory technologies.
• Cost-Effective Density: Delivers 512Mbit capacity at competitive pricing for applications that don't require the higher densities and costs of DDR or newer memory types.
• Standard Footprint Compatibility: Uses industry-standard 54-TSOP II package that allows drop-in replacement or second-sourcing with other vendors' compatible devices.
• Simplified Power Design: Single 3.3V supply voltage reduces power management complexity and allows direct connection to standard logic power rails without level shifters.
• Commercial Temperature Reliability: Operates consistently across the 0°C to 70°C range typical of indoor equipment installations, ensuring stable performance in office, lab, and home environments.
• Active Lifecycle Status: Currently in active production from Alliance Memory, providing supply chain confidence for new designs and long-term availability for existing products.

Why Choose AS4C64M8SD-7TCNTR?

The AS4C64M8SD-7TCNTR is positioned as a reliable, cost-effective memory solution for embedded and consumer applications where proven SDRAM technology meets density and performance requirements without the premium of advanced memory types. Its 133MHz operation and 5.4ns access speed serve mainstream computing needs, while the LVTTL interface and single 3.3V supply align with standard embedded system architectures. The commercial temperature range makes this device ideal for indoor equipment, office automation, consumer electronics, and networking products operating in controlled environments.

Engineers designing for cost-sensitive applications will appreciate the balance of adequate performance, proven reliability, and competitive pricing that Alliance Memory's SDRAM portfolio delivers. The active lifecycle status and standard package footprint provide long-term design security and second-source flexibility.

Get Started

To request detailed specifications, pricing, or availability information for the AS4C64M8SD-7TCNTR, contact our sales team. We can assist with technical evaluation, sampling, and volume procurement to support your development timeline and production requirements.