IS42S32800J-7TL

The IS42S32800J-7TL is a 256-megabit synchronous dynamic random access memory (SDRAM) chip from ISSI, Integrated Silicon Solution Inc. Organized as 8M x 32 with a parallel interface, this DRAM provides reliable high-speed memory storage for embedded systems requiring fast data access and moderate density. With a 143MHz clock frequency and 5.4ns access time, this SDRAM delivers the performance needed for real-time data buffering and processing applications.

Designed for commercial temperature range operation (0°C to 70°C), the IS42S32800J-7TL offers a balanced combination of capacity, speed, and cost-effectiveness for mainstream digital systems. Its 3V to 3.6V supply voltage supports compatibility with modern low-power designs while maintaining robust performance.

Key Features

• Memory Configuration - 256Mbit total capacity organized as 8M words x 32 bits, providing flexible word-level access for 32-bit processor architectures.
• High-Speed Operation - 143MHz clock frequency with 5.4ns access time enables rapid data transfers for time-sensitive applications.
• Parallel Interface - Direct parallel memory interface simplifies integration with microprocessors and controllers without requiring complex serial protocols.
• Standard Supply Voltage - 3V to 3.6V operation supports compatibility with common embedded system power rails.
• Commercial Temperature Range - Rated for 0°C to 70°C ambient operation, suitable for indoor and controlled-environment applications.
• TSOP II Package - 86-pin TSOP II (10.16mm width) surface-mount package offers compact footprint with proven reliability for automated assembly.

Typical Applications

• Embedded Computing Systems - This SDRAM serves as main memory or frame buffer in embedded processors where the 8M x 32 organization matches 32-bit data bus architectures, reducing interface complexity and improving throughput.
• Network Equipment - The 143MHz operation supports packet buffering in routers and switches where fast memory access is essential for maintaining wire-speed performance in moderate-bandwidth network infrastructure.
• Consumer Electronics - This memory provides data storage for set-top boxes, digital displays, and multimedia devices where the commercial temperature range and standard voltage operation align with typical consumer product requirements.
• Point-of-Sale Terminals - The parallel interface and moderate density make this SDRAM suitable for POS systems and payment terminals that require responsive operation without the cost premium of higher-speed memory technologies.
• Test and Measurement Instruments - This DRAM enables data acquisition buffering in benchtop instruments where the 0°C to 70°C range matches laboratory and field service environments.

Unique Advantages

• Optimized Word Organization: The 8M x 32 configuration directly matches 32-bit processor architectures, eliminating the need for memory controllers to perform data width conversion and simplifying board design.
• Proven SDRAM Technology: Synchronous operation with clock-driven timing reduces design complexity compared to asynchronous DRAM, while maintaining lower cost than higher-performance DDR variants.
• Compact Surface-Mount Package: The TSOP II form factor provides a smaller footprint than DIP packages while remaining easier to inspect and rework than fine-pitch BGAs.
• Standard Voltage Operation: 3.3V nominal supply eliminates the need for multiple power rails or level shifters in most modern embedded designs.
• Active Lifecycle Status: Ongoing production availability reduces supply chain risk for products with multi-year lifecycles.
• Established Manufacturer: ISSI's focus on memory products ensures application support and consistent quality for volume production.

Why Choose IS42S32800J-7TL?

The IS42S32800J-7TL represents a practical choice for designs that require reliable memory performance without the complexity and cost of advanced memory technologies. Its 256Mbit capacity and 143MHz operation provide sufficient performance for embedded applications, consumer products, and commercial equipment operating in controlled environments. The parallel interface and 32-bit organization simplify hardware design while the standard TSOP II package supports high-volume automated manufacturing.

For engineering teams developing cost-sensitive products with moderate memory requirements, this SDRAM offers a well-understood, stable solution backed by an established supplier. The active lifecycle status supports long-term production planning while the commercial temperature range addresses the majority of indoor and climate-controlled applications.

Get a Quote

To request pricing, check availability, or discuss volume requirements for the IS42S32800J-7TL, contact our sales team for a customized quote tailored to your project specifications.