IS42S32400B-7BL-TR

The IS42S32400B-7BL-TR is a 128-megabit synchronous DRAM organized as 4M x 32, designed for applications requiring high-speed parallel memory access. This SDRAM device operates at clock frequencies up to 143MHz with a 5.4ns access time, making it suitable for embedded systems and industrial applications that demand reliable, fast memory performance. Built on proven SDRAM technology, this component provides cost-effective memory solutions for designs requiring moderate density and parallel interface compatibility.

Key Features

• Memory Architecture - 128Mbit total capacity organized as 4M words x 32 bits, providing flexible addressing for embedded processors and controllers requiring 32-bit data bus width.
• Performance - Operates at clock frequencies up to 143MHz with 5.4ns access time, delivering responsive memory performance for real-time applications and data processing tasks.
• Power Supply - Standard 3V to 3.6V operating voltage range compatible with common 3.3V system designs, simplifying power management in embedded systems.
• Temperature Range - Commercial temperature range of 0°C to 70°C supports standard indoor and controlled-environment applications.
• Package - Compact 90-pin TFBGA (8mm x 13mm) package offers space-efficient PCB footprint for size-constrained designs.
• Interface - Parallel memory interface provides direct processor access with established SDRAM command protocols and timing.

Typical Applications

• Embedded Computing - This SDRAM serves as working memory for embedded processors in industrial controllers, point-of-sale terminals, and instrumentation where 128Mbit capacity meets application requirements without oversizing the BOM.
• Industrial HMI Systems - The parallel interface and commercial temperature range make this memory suitable for human-machine interface displays and operator panels in factory automation equipment operating in controlled environments.
• Network Equipment - Provides buffer memory for routers, switches, and network appliances requiring fast synchronous memory access for packet processing and data forwarding in managed network infrastructure.
• Legacy System Support - Supports maintenance and continued production of existing designs that specify parallel SDRAM, enabling long-term serviceability of established product lines.

Unique Advantages

• Established SDRAM Architecture: Uses proven synchronous DRAM technology with well-understood timing characteristics and broad processor compatibility, reducing integration risk.
• 32-Bit Data Width: Native 4M x 32 organization matches common processor bus widths, eliminating the need for multiple memory devices or complex data path routing.
• Compact Form Factor: The 90-TFBGA package delivers 128Mbit capacity in a small 8mm x 13mm footprint, conserving board space in dense embedded designs.
• Standard Voltage Operation: 3V to 3.6V supply range integrates seamlessly with existing 3.3V system power architectures without level shifting or additional regulators.
• 143MHz Clock Support: Sufficient bandwidth for moderate-speed embedded applications without requiring premium high-speed memory pricing.

Why Choose IS42S32400B-7BL-TR?

This SDRAM is suited for embedded and industrial designs requiring parallel memory with moderate density and commercial temperature operation. The 4M x 32 organization provides efficient memory access for 32-bit processors, while the 143MHz clock capability balances performance with cost-effectiveness. The compact TFBGA package is appropriate for space-conscious designs where through-hole or larger BGA packages would consume excessive board area.

Note that this component has obsolete lifecycle status. For new designs, consult with ISSI or authorized distributors regarding current product recommendations and long-term availability. For existing designs requiring this specific part number, confirm inventory availability and consider future sourcing plans.

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Contact our technical sales team to discuss availability, pricing, and alternative memory solutions for your application. Our specialists can help you evaluate this component for your specific design requirements and provide guidance on current product status and recommendations.