IS42S16160G-7TLI

The IS42S16160G-7TLI is a 256Mbit synchronous dynamic random access memory (SDRAM) IC from ISSI, Integrated Silicon Solution Inc. This parallel interface DRAM is organized as 16M x 16, providing reliable volatile memory storage with a 143MHz clock frequency and 5.4ns access time. Designed for extended temperature operation from -40°C to 85°C, this memory solution serves embedded systems, industrial equipment, and commercial applications requiring dependable intermediate-density SDRAM performance.

Key Features

• 256Mbit Memory Capacity - Organized as 16M x 16, this configuration provides versatile address and data arrangements for various system architectures.
• SDRAM Technology - Synchronous operation with 143MHz clock frequency enables predictable timing and straightforward integration with modern digital systems.
• 5.4ns Access Time - Fast memory access supports responsive system performance for data-intensive operations.
• 3V to 3.6V Operation - Standard voltage supply range simplifies power management and ensures compatibility with common system designs.
• Extended Temperature Range - Rated for -40°C to 85°C operation, enabling deployment in industrial environments with temperature extremes.
• 54-TSOP II Package - Industry-standard 54-pin TSOP II package (10.16mm width) offers proven form factor for established PCB designs.

Typical Applications

• Industrial Control Systems - This SDRAM provides working memory for programmable logic controllers (PLCs), human-machine interfaces (HMIs), and process control equipment where the extended temperature rating ensures reliable operation in factory floor conditions.
• Embedded Computing Platforms - The 256Mbit capacity and parallel interface make this memory suitable for single-board computers, embedded processors, and real-time systems requiring moderate memory density with predictable synchronous operation.
• Telecommunications Equipment - Network switches, routers, and communication infrastructure leverage this SDRAM for packet buffering and data processing where the 143MHz clock frequency supports throughput requirements.
• Test and Measurement Instruments - Benchtop equipment and portable test tools use this memory for waveform capture, data logging, and measurement processing where extended temperature tolerance accommodates diverse operating environments.
• Commercial Displays and Signage - Digital signage controllers and display systems employ this SDRAM for frame buffering and graphics processing where the standard voltage and temperature range align with commercial deployment scenarios.

Unique Advantages

• Proven SDRAM Architecture: Synchronous design eliminates complex asynchronous timing requirements, simplifying controller design and reducing development effort.
• Temperature Tolerance for Industrial Use: The -40°C to 85°C rating extends deployment options beyond commercial-only environments without requiring specialized memory components.
• Mature Technology Node: SDRAM's established ecosystem provides abundant controller IP, driver support, and reference designs that accelerate time-to-market.
• Parallel Interface Compatibility: Direct memory bus connection integrates seamlessly with processors and microcontrollers offering external memory interfaces without requiring protocol conversion.
• Moderate Density Sweet Spot: 256Mbit capacity addresses systems that have outgrown smaller memories but don't require gigabit-scale density, optimizing cost and board space.
• Standard Package Footprint: The 54-TSOP II package uses widely adopted pinout and dimensions, enabling pin-compatible alternatives and established PCB layout practices.

Why Choose IS42S16160G-7TLI?

The IS42S16160G-7TLI addresses embedded and industrial applications where proven SDRAM technology, extended temperature operation, and moderate memory density converge. For system designers working with legacy platforms or new designs requiring straightforward memory integration, this component delivers the synchronous operation and parallel interface that many processors and controllers natively support. The extended temperature rating qualifies this memory for industrial control, outdoor equipment, and transportation systems where commercial-only components would fall short.

Note that this part carries an obsolete lifecycle status. For new designs requiring long-term availability, contact ISSI regarding current-production alternatives with similar specifications. For production support, repair, or legacy system maintenance, evaluate remaining inventory and consider end-of-life buy strategies.

Contact Us for Availability and Alternatives

Given the obsolete status of IS42S16160G-7TLI, we recommend discussing your specific requirements with our technical sales team. We can help identify current-production SDRAM alternatives from ISSI or other manufacturers that match your capacity, temperature, and interface needs. Request a quote or consultation to explore memory options for your application.