IS42S16400N-7TLI

The IS42S16400N-7TLI from ISSI, Integrated Silicon Solution Inc is a 64-megabit synchronous dynamic random access memory (SDRAM) designed for embedded systems requiring reliable, high-speed volatile memory. Organized as 4M x 16, this SDRAM operates at up to 143MHz clock frequency and provides 5.4ns access time, making it suitable for applications demanding fast data throughput. With an extended temperature range of -40°C to 85°C, this component delivers consistent performance in industrial and commercial environments.

Key Features

• Memory Organization - 4M x 16 architecture provides 64 megabits of volatile storage with a parallel interface, optimized for 16-bit data bus systems.
• High-Speed Operation - 143MHz clock frequency with 5.4ns access time enables rapid read and write operations for demanding real-time applications.
• LVTTL Interface - Low-voltage TTL-compatible signaling simplifies integration with standard logic families and reduces system complexity.
• Extended Temperature Range - Operates reliably from -40°C to 85°C, supporting deployment in industrial environments where temperature fluctuations are common.
• Standard Supply Voltage - 3V to 3.6V operation aligns with common embedded system power rails, reducing the need for additional voltage regulators.
• 54-TSOP II Package - Thin small-outline package with 0.400" (10.16mm) width offers a compact footprint suitable for space-constrained PCB designs.

Typical Applications

• Industrial Control Systems - This SDRAM provides working memory for programmable logic controllers (PLCs) and distributed control systems where the extended temperature range ensures reliable operation in factory floor conditions.
• Embedded Computing Platforms - Serves as main system memory in embedded processors and microcontrollers, offering sufficient capacity and speed for real-time operating systems and application software.
• Telecommunications Equipment - Supports buffering and data processing in network switches, routers, and base stations where fast access times reduce latency in packet handling.
• Medical Instrumentation - Provides volatile memory for diagnostic equipment and patient monitoring systems that require reliable data storage during operation without the persistence of non-volatile memory.
• Test and Measurement Devices - Enables high-speed data acquisition and signal processing in oscilloscopes, spectrum analyzers, and automated test equipment where rapid memory access is essential.

Unique Advantages

• Simplified Thermal Management: The extended -40°C to 85°C operating temperature range eliminates the need for additional cooling or heating systems in many industrial applications, reducing BOM costs and design complexity.
• Standard Interface Compatibility: LVTTL signaling ensures straightforward interfacing with a wide range of microprocessors, FPGAs, and ASICs without level-shifting circuitry.
• Optimal Density for Embedded Systems: The 64Mbit capacity with 4M x 16 organization provides sufficient memory for mid-range embedded applications without over-provisioning or requiring multiple devices.
• Fast Random Access Performance: 5.4ns access time supports applications with frequent non-sequential memory access patterns, improving overall system responsiveness.
• Mature SDRAM Technology: Proven synchronous DRAM architecture offers predictable performance characteristics and broad design tool support, accelerating development cycles.
• Space-Efficient Packaging: The 54-pin TSOP II format delivers high pin density in a standardized footprint that is well-supported by PCB assembly processes.

Why Choose IS42S16400N-7TLI?

The IS42S16400N-7TLI is positioned for embedded system designers who need reliable, fast volatile memory in industrial-grade operating conditions. Its combination of 143MHz operation, extended temperature tolerance, and standard 3.3V power makes it particularly well-suited for applications in automation, telecommunications, and instrumentation where performance must be maintained across varying environmental conditions. Engineers designing systems with 16-bit data buses will find the 4M x 16 organization a natural fit that simplifies address decoding and memory controller configuration.

For long-term designs, the active lifecycle status and mature SDRAM technology provide confidence in component availability and stable performance characteristics. The LVTTL interface and standard TSOP II package reduce integration risk and leverage established design practices, helping teams meet aggressive time-to-market goals while maintaining quality and reliability standards.

Get a Quote

Contact our sales team to request pricing and availability for the IS42S16400N-7TLI. Our technical support staff can assist with integration questions, reference designs, and volume requirements to ensure your project success.