AS4C16M16SB-6BIN

The AS4C16M16SB-6BIN is a 256Mbit synchronous DRAM (SDRAM) from Alliance Memory, organized as 16M x 16 bits. This LVTTL-compatible memory device operates at clock frequencies up to 166MHz with 5ns access time, delivering reliable performance for embedded systems and industrial applications.

Featuring an extended operating temperature range of -40°C to 85°C, this SDRAM is designed for applications where thermal stability is essential. The device is available in a compact 54-TFBGA package measuring 8x8mm.

Key Features

• Memory Capacity and Organization - 256Mbit total capacity organized as 16M x 16, providing efficient data bus utilization for 16-bit processor architectures.
• High-Speed Performance - Operates at 166MHz clock frequency with 5ns access time and 12ns write cycle time, enabling fast data throughput for demanding applications.
• LVTTL Interface - Low-voltage TTL interface ensures compatibility with 3.3V logic systems while reducing power consumption compared to older TTL standards.
• Extended Temperature Range - Operates reliably from -40°C to 85°C, meeting industrial temperature requirements without derating.
• Flexible Power Supply - Accepts supply voltage from 3V to 3.6V, providing design margin for voltage regulation tolerances.
• Compact Package - 54-TFBGA (8x8mm) package enables high-density PCB layouts while maintaining thermal performance.

Typical Applications

• Industrial Control Systems - This SDRAM provides reliable volatile storage for PLCs, motion controllers, and factory automation equipment where the extended temperature range ensures consistent operation in harsh manufacturing environments.
• Telecommunications Equipment - The 166MHz clock speed and 16-bit bus width support high-bandwidth data buffering in routers, switches, and network interface cards.
• Embedded Computing - The 16M x 16 organization pairs efficiently with 16-bit and 32-bit embedded processors, serving as main memory or frame buffer in single-board computers and embedded modules.
• Point-of-Sale Terminals - Compact footprint and industrial temperature support make this device suitable for retail terminals deployed in varied environmental conditions.

Unique Advantages

• Long-term Availability: Alliance Memory specializes in memory solutions with extended product lifecycles, reducing redesign costs for long-lived industrial products.
• Drop-in Compatibility: Standard SDRAM pinout and timing specifications simplify second-sourcing and qualification in existing designs.
• Industrial Temperature Standard: The -40°C to 85°C operating range is included as standard, eliminating upcharges for temperature screening.
• Reduced BOM Complexity: Single-chip 256Mbit density consolidates memory requirements that might otherwise require multiple lower-density devices.
• Active Lifecycle Status: Currently in active production status, ensuring ongoing supply for new designs and volume production.

Why Choose AS4C16M16SB-6BIN?

The AS4C16M16SB-6BIN addresses the needs of engineers designing embedded systems that require proven SDRAM technology with industrial-grade reliability. The combination of 256Mbit capacity, 166MHz operation, and extended temperature support makes it suitable for applications ranging from industrial automation to telecommunications infrastructure.

For designs requiring a stable, long-term memory supply without the risks associated with end-of-life announcements, Alliance Memory's focus on memory continuity provides confidence in product availability throughout your system's production lifecycle.

Get Started

Contact our sales team for volume pricing, technical documentation, and sample requests. Our application engineers can assist with design-in support and help identify the optimal memory configuration for your specific requirements.