IS42S32800J-7TLI

The IS42S32800J-7TLI is a 256-megabit synchronous dynamic random access memory (SDRAM) designed for embedded applications requiring reliable, high-speed parallel memory access. Organized as 8 million words by 32 bits, this SDRAM operates at speeds up to 143 MHz with a 5.4 nanosecond access time, making it well-suited for industrial controllers, automotive systems, and communication equipment. Its wide operating temperature range of -40°C to 85°C ensures consistent performance across challenging environmental conditions.

Built on proven SDRAM technology, the IS42S32800J-7TLI delivers the balance of capacity, speed, and cost-effectiveness that embedded designers need for data buffering, program storage, and real-time processing tasks.

Key Features

• 256Mbit Memory Capacity: Organized as 8M x 32, providing 32 megabytes of addressable memory space for application code, data buffers, and temporary storage in embedded designs.
• 143 MHz Clock Frequency: Supports high-bandwidth data transfer rates with a 5.4 nanosecond access time, enabling responsive system performance for real-time applications.
• Parallel Memory Interface: Direct connection to processor buses simplifies integration with legacy and current-generation microcontrollers and DSPs without additional interface logic.
• Industrial Temperature Range: Rated for operation from -40°C to 85°C, ensuring reliable memory performance in factory automation, transportation, and outdoor equipment installations.
• 3.0V to 3.6V Supply Voltage: Compatible with standard 3.3V logic levels used in most embedded systems, reducing power supply complexity.
• 86-TSOP II Package: Industry-standard 86-pin Thin Small Outline Package (0.400" width) facilitates PCB layout and supports automated assembly processes.

Typical Applications

• Industrial Control Systems: This SDRAM serves as main memory for programmable logic controllers (PLCs), human-machine interfaces (HMIs), and distributed I/O modules where extended temperature tolerance ensures reliable operation in factory floor environments.
• Automotive Infotainment and Telematics: Provides data buffering and temporary storage for in-vehicle navigation systems, dashboard displays, and connectivity modules operating across automotive temperature extremes.
• Networking and Communication Equipment: Functions as packet buffer memory in routers, switches, and gateways where the parallel interface enables direct connection to network processors and the 256Mbit capacity handles moderate traffic loads.
• Test and Measurement Instruments: Supports data acquisition and waveform storage in oscilloscopes, logic analyzers, and automated test equipment where high-speed access enables real-time signal capture.
• Medical Devices: Offers program and data memory for patient monitoring equipment, diagnostic instruments, and portable medical devices requiring stable operation across varying environmental conditions.

Unique Advantages

• Simplified System Design: The parallel interface eliminates the need for memory controller translation logic required by serial memory types, reducing component count and board complexity.
• Extended Industrial Temperature Performance: Operating reliably from -40°C to 85°C allows designers to deploy the same memory solution across consumer, commercial, and industrial product lines without qualification concerns.
• Proven SDRAM Architecture: Based on mature synchronous DRAM technology with established supply chains and broad software support, reducing design risk compared to newer memory technologies.
• Cost-Effective Memory Solution: SDRAM pricing offers lower cost per bit than SRAM while providing faster access than NAND flash, making it an economical choice for moderate-capacity embedded applications.
• Standard Package Footprint: The 86-TSOP II package is widely supported by PCB assembly equipment and allows for straightforward sourcing from multiple manufacturers if second-source options are needed.
• Active Lifecycle Status: Currently in active production by ISSI, ensuring ongoing availability for new designs and long-term product maintenance.

Why Choose the IS42S32800J-7TLI?

The IS42S32800J-7TLI addresses the requirements of embedded system designers who need dependable, mid-capacity memory with straightforward integration. Its combination of industrial temperature rating, proven parallel interface, and 256Mbit capacity makes it particularly valuable for applications where system longevity, environmental robustness, and design simplicity take priority over cutting-edge density or power efficiency.

For industrial equipment manufacturers, automotive tier suppliers, and instrumentation developers targeting multi-year product lifecycles, this SDRAM provides a stable memory foundation backed by an established manufacturer. The wide temperature range and active production status support both immediate design-in opportunities and long-term serviceability planning.

Get a Quote

Contact our sales team to discuss your memory requirements, request pricing for the IS42S32800J-7TLI, or explore alternative capacity and configuration options for your embedded application. Our technical support staff can assist with memory subsystem design questions and integration guidance.