IS42S32800B-7BI-TR

The IS42S32800B-7BI-TR is a 256-megabit synchronous dynamic RAM from ISSI, Integrated Silicon Solution Inc, organized as 8M x 32 bits. This parallel SDRAM delivers reliable memory performance with a 143MHz clock frequency and 5.5ns access time, making it suitable for embedded systems requiring cost-effective, high-density volatile memory.

Operating across an industrial temperature range of -40°C to 85°C, this DRAM is designed for applications where consistent memory performance is needed in varying environmental conditions. The device is housed in a compact 90-LFBGA package measuring 8x13mm.

Key Features

• Memory Architecture - 256Mbit capacity organized as 8M x 32, providing a 32-bit parallel data path for efficient data throughput in embedded applications.
• Performance - 143MHz clock frequency with 5.5ns access time enables responsive system operation for processing and data-intensive tasks.
• Power Supply - Operates on a 3V to 3.6V supply, compatible with standard 3.3V logic systems commonly used in embedded designs.
• Temperature Range - Industrial-grade -40°C to 85°C operating range ensures stable memory operation across harsh environmental conditions.
• Package - Compact 90-LFBGA (8x13mm) package offers space-efficient PCB integration while providing 90 ball connections for the parallel interface.
• Interface - Parallel memory interface simplifies integration with standard SDRAM controllers and processors supporting synchronous DRAM protocols.

Typical Applications

• Industrial Automation - This SDRAM provides reliable memory for PLCs and HMI systems where the extended temperature tolerance ensures consistent operation in factory environments.
• Embedded Computing - The 32-bit parallel interface and 143MHz operation make this DRAM suitable for embedded processors requiring working memory for real-time control and data buffering.
• Communications Equipment - Network equipment and telecom devices benefit from the reliable volatile memory for packet buffering and temporary data storage in industrial temperature environments.
• Test and Measurement - Instrumentation systems use this DRAM for data acquisition buffering and waveform storage where the industrial temperature range supports field deployment.

Unique Advantages

• Industrial Temperature Operation: The -40°C to 85°C range extends system deployment options beyond commercial-grade memory limitations.
• Compact High-Density Integration: The 90-LFBGA package combines 256Mbit capacity with a small 8x13mm footprint to minimize board space requirements.
• Standard SDRAM Interface: Parallel SDRAM protocol compatibility simplifies design migration and controller integration without proprietary interfaces.
• 32-Bit Data Width: Wide data path reduces memory access cycles compared to narrower configurations, improving system throughput efficiency.
• 3.3V Logic Compatibility: The 3V to 3.6V supply voltage aligns with widely-used 3.3V logic standards, simplifying power supply design and reducing component count.

Why Choose IS42S32800B-7BI-TR?

This SDRAM is positioned for embedded system designers requiring proven parallel DRAM technology with industrial temperature capability. The 8M x 32 organization and 143MHz operation provide sufficient memory bandwidth for control systems, networking equipment, and industrial computing platforms where reliability and temperature tolerance are essential.

Note that this product has reached obsolete lifecycle status. Designers should consider this component for legacy system support and maintenance while evaluating alternative solutions for new designs. The industrial temperature range and standard SDRAM interface make it valuable for extending existing platform lifecycles.

Get Pricing and Availability

For current pricing, lead times, and volume availability of the IS42S32800B-7BI-TR, please request a quote from our sales team. Our technical support can also assist with integration questions and alternative recommendations for your specific application requirements.