IS42S16400J-6BLI-TR

The IS42S16400J-6BLI-TR from ISSI is a 64-megabit synchronous dynamic random access memory (SDRAM) IC designed for embedded systems requiring reliable, high-speed volatile memory. With a 4M x 16 organization and 166MHz clock support, this parallel SDRAM delivers dependable performance across industrial temperature ranges, making it suitable for legacy system maintenance and equipment refurbishment applications.

Key Features

• Memory Architecture - 64Mbit capacity organized as 4M x 16, providing flexible address space configuration for embedded applications requiring moderate memory density.
• Performance Specifications - 166MHz clock frequency with 5.4ns access time enables fast read/write cycles for time-sensitive applications.
• Power Requirements - 3V to 3.6V supply voltage range supports standard 3.3V logic level systems common in industrial and embedded designs.
• Temperature Range - Operates reliably from -40°C to 85°C, ensuring consistent performance in industrial environments with temperature variations.
• Package Type - 54-pin TFBGA (8x8mm) package provides compact footprint for space-constrained PCB layouts.
• Interface - Parallel memory interface offers straightforward integration with legacy processors and microcontrollers that lack modern serial memory controllers.

Typical Applications

• Legacy System Support - This SDRAM serves as a replacement component for maintaining and repairing existing equipment where the original memory ICs are no longer in production, extending the operational life of critical systems.
• Industrial Equipment Refurbishment - Provides drop-in memory solutions for refurbishing older industrial control systems, test equipment, and instrumentation where parallel SDRAM interfaces remain the standard.
• Embedded Systems - Suitable for embedded applications requiring volatile memory with parallel interfaces, particularly in designs where the 4M x 16 organization matches processor bus widths and address space requirements.

Unique Advantages

• Extended Temperature Operation: The -40°C to 85°C range ensures reliable operation in industrial settings where ambient conditions vary significantly.
• Standard 3.3V Logic Compatibility: Works directly with common 3.3V system designs without requiring additional level shifters or voltage regulation.
• Compact TFBGA Package: The 8x8mm footprint minimizes board space requirements while maintaining industry-standard pin counts.
• Proven SDRAM Technology: Synchronous DRAM architecture simplifies timing design compared to asynchronous memories and provides predictable performance characteristics.
• Parallel Interface Simplicity: Direct memory access without serial protocol overhead makes integration straightforward for legacy processor architectures.

Why Choose IS42S16400J-6BLI-TR?

This product is positioned as a reliable memory solution for maintaining legacy systems and supporting long-lifecycle industrial equipment. The 64Mbit capacity and 4M x 16 organization match many embedded designs from the 2000s and 2010s, making it particularly valuable for equipment manufacturers and maintenance organizations that need to source replacement components for aging but still-functional systems. Please note that this product carries an obsolete lifecycle status, indicating limited long-term availability.

For designs requiring long-term production support or new product development, consider consulting with your supplier about currently active memory alternatives. However, for immediate repair needs and short-term maintenance operations, this IC provides the necessary specifications to restore functionality to equipment using this specific memory configuration.

Contact Us

Need availability information or have questions about compatibility with your existing system? Contact our technical sales team for pricing, lead times, and application support. We can help verify whether this component meets your replacement needs or recommend currently-active alternatives for new designs.