IS42S32800J-7TLI-TR

The IS42S32800J-7TLI-TR is a 256-megabit synchronous dynamic random access memory (SDRAM) organized as 8M x 32 bits. This high-performance parallel SDRAM operates at clock frequencies up to 143MHz with a fast 5.4ns access time, making it well-suited for applications requiring substantial memory bandwidth and reliable data storage. Manufactured by ISSI (Integrated Silicon Solution Inc), this device delivers robust performance across an industrial temperature range while maintaining compatibility with standard 3.3V systems.

Key Features

• Memory Architecture - 256Mbit total capacity organized as 8M x 32-bit words, providing efficient data access for 32-bit processors and systems requiring wide data paths.
• High-Speed Operation - Supports clock frequencies up to 143MHz with 5.4ns access time, enabling rapid read/write operations for bandwidth-intensive applications.
• Power Supply - Operates from a single 3.3V supply (3V to 3.6V range), simplifying power design and ensuring compatibility with standard logic levels.
• Industrial Temperature Range - Qualified for -40°C to 85°C (TA) operation, ensuring reliable performance in harsh environmental conditions.
• Package - Available in an 86-pin TSOP II (Thin Small Outline Package) with 10.16mm width, offering a compact footprint for space-constrained designs.
• Parallel Interface - Standard parallel SDRAM interface allows straightforward integration with microprocessors, FPGAs, and other memory controllers.

Typical Applications

• Industrial Automation - This SDRAM provides reliable memory for programmable logic controllers (PLCs), human-machine interfaces (HMIs), and industrial PCs where the extended temperature tolerance ensures consistent operation in factory floor environments subject to heat and vibration.
• Embedded Computing Systems - The 32-bit wide data path and 143MHz operation make this device ideal for embedded processors requiring substantial working memory for real-time operating systems, data buffering, and application code execution.
• Telecommunications Equipment - Network routers, switches, and base station controllers benefit from the high bandwidth and industrial temperature rating when processing packet data and maintaining routing tables in equipment rooms with variable thermal conditions.
• Automotive Infotainment - The wide temperature range and stable operation support memory requirements in vehicle dashboard systems, navigation units, and entertainment consoles that must function reliably from cold starts to high cabin temperatures.
• Medical Instrumentation - Diagnostic equipment and patient monitoring systems utilize this SDRAM for image buffering, waveform storage, and data processing where reliability and extended temperature tolerance are critical for clinical environments.

Unique Advantages

• Simplified BOM with Single Supply Voltage: The 3.3V-only operation eliminates the need for multiple voltage regulators, reducing component count and board complexity compared to legacy DRAM architectures requiring separate I/O and core supplies.
• Proven SDRAM Technology: Synchronous DRAM architecture provides deterministic timing and straightforward controller design, reducing development time and firmware complexity versus newer memory technologies with more complex protocols.
• Extended Operating Range for Harsh Environments: The -40°C to 85°C industrial temperature rating enables deployment in outdoor enclosures, automotive applications, and industrial settings without requiring additional thermal management.
• 32-Bit Native Data Width: The x32 organization matches common processor architectures, minimizing the number of memory devices required and simplifying board routing compared to narrower x8 or x16 configurations.
• Compact TSOP II Packaging: The thin profile and standard footprint allow efficient PCB space utilization while maintaining compatibility with automated assembly processes and facilitating repairs when necessary.
• Active Lifecycle Status: Ongoing production availability ensures long-term supply for products with extended lifecycles, reducing the risk of costly redesigns due to component obsolescence.

Why Choose IS42S32800J-7TLI-TR?

The IS42S32800J-7TLI-TR represents a reliable choice for system designers requiring proven SDRAM technology in industrial-grade applications. Its combination of 256Mbit capacity, 143MHz operation, and wide temperature range addresses the needs of embedded systems, industrial controls, and telecommunications equipment where performance must remain consistent across varying environmental conditions. The standard parallel interface and single 3.3V supply simplify integration while the 32-bit data width provides efficient memory utilization for modern processors.

This device is particularly well-suited for applications with extended product lifecycles where supply continuity and proven technology reduce long-term risk. Engineering teams benefit from straightforward controller implementation using standard SDRAM protocols, while the industrial temperature rating eliminates the need for thermal derating in most deployment scenarios.

Get Started with IS42S32800J-7TLI-TR

Ready to integrate this SDRAM into your next design? Contact our technical sales team to discuss your memory requirements, request samples, or obtain pricing for production volumes. Our engineers can provide integration support, reference designs, and guidance on optimizing your memory subsystem for maximum performance and reliability.