IS42S16400N-6TLI

The IS42S16400N-6TLI from ISSI is a high-performance 64Mbit synchronous DRAM designed for applications requiring fast, reliable volatile memory. Built on proven SDRAM technology with a 4M x 16 organization, this memory IC operates at up to 166MHz clock frequency with a 5.4ns access time, making it ideal for embedded systems, industrial controls, and communication equipment that demand responsive memory performance across extended temperature ranges.

With an industrial temperature rating of -40°C to 85°C and standard LVTTL interface compatibility, this DRAM integrates seamlessly into designs requiring dependable memory operation in challenging environmental conditions.

Key Features

• Memory Architecture - 64Mbit capacity organized as 4M x 16, providing flexible word-width access for efficient data handling in 16-bit processor systems.
• High-Speed Performance - 166MHz clock frequency with 5.4ns access time enables rapid read/write cycles for time-sensitive applications.
• Power Supply - Operates on standard 3V to 3.6V supply voltage, compatible with common embedded system power rails.
• Temperature Range - Industrial-grade -40°C to 85°C operating range ensures reliable operation in factory automation, outdoor equipment, and automotive non-safety systems.
• Standard Interface - LVTTL-compatible parallel interface simplifies integration with microcontrollers, DSPs, and FPGAs without level translation.
• Package - 54-pin TSOP II package (0.400" width) offers a compact footprint with proven manufacturability for surface-mount assembly.

Typical Applications

• Industrial Automation - This SDRAM provides working memory for programmable logic controllers (PLCs) and human-machine interfaces (HMIs) where the extended temperature tolerance ensures consistent operation in factory floor environments and the parallel interface supports legacy industrial processor architectures.
• Embedded Computing - Serves as main system memory in embedded computers and single-board computers where the 64Mbit capacity handles operating system buffers and application data while the synchronous design maintains timing predictability.
• Communication Equipment - Functions as packet buffer memory in routers, switches, and network appliances where the 166MHz clock rate supports data throughput requirements and the industrial temperature range accommodates equipment closet installations.
• Test and Measurement Instruments - Provides data acquisition buffering in oscilloscopes and signal analyzers where the fast access time enables real-time waveform capture and the 4M x 16 organization aligns with instrument data path widths.
• Medical Devices - Supports non-critical medical equipment requiring volatile working memory where the stable operating characteristics across temperature variations maintain diagnostic accuracy and the LVTTL interface matches common medical system controllers.

Unique Advantages

• Proven SDRAM Technology: Mature synchronous DRAM architecture provides predictable timing characteristics and widespread software support, reducing development risk compared to newer memory technologies.
• Extended Temperature Operation: Industrial -40°C to 85°C rating eliminates the need for thermal management in many applications, simplifying enclosure design and reducing system cost.
• Parallel Interface Compatibility: LVTTL-compatible parallel interface directly connects to a broad range of legacy and current processors without voltage translation circuits, reducing BOM cost and board space.
• Synchronous Operation: Clock-synchronous design simplifies timing analysis and system integration compared to asynchronous DRAM, improving design reliability.
• Standard Package: Industry-standard 54-TSOP II package ensures compatibility with automated assembly equipment and enables second-sourcing opportunities.
• Active Lifecycle Status: Ongoing production availability supports long-term designs and reduces obsolescence risk for industrial and embedded applications with extended product lifetimes.

Why Choose IS42S16400N-6TLI?

The IS42S16400N-6TLI is positioned for designers who need dependable, cost-effective volatile memory in industrial and embedded applications. Its combination of industrial temperature rating, standard parallel interface, and 166MHz performance addresses the requirements of control systems, communication infrastructure, and instrumentation where proven technology and long-term availability matter more than cutting-edge density or speed specifications.

For applications requiring 64Mbit capacity with 16-bit data paths, this SDRAM offers straightforward integration and reliable operation across demanding environmental conditions, making it particularly valuable in designs with 5-10 year production horizons.

Get Started

Ready to integrate the IS42S16400N-6TLI into your next design? Contact our sales team for pricing, availability, and technical support. We can provide detailed specifications, reference designs, and volume pricing to help you meet your project requirements.