IS42S16400D-6TL-TR

The IS42S16400D-6TL-TR is a 64-megabit synchronous dynamic random-access memory (SDRAM) organized as 4M x 16 bits. This parallel interface DRAM operates at clock frequencies up to 166MHz with a 5ns access time, making it suitable for embedded systems and computing applications that require fast, cost-effective volatile memory. With a standard 3V to 3.6V supply voltage and commercial temperature range, this component provides reliable temporary data storage for processor-based designs.

Key Features

• Memory Architecture - 64-megabit capacity organized as 4M x 16-bit words, providing flexible data path configuration for various system architectures.
• High-Speed Performance - 166MHz clock frequency support with 5ns access time enables rapid read and write operations for demanding applications.
• Standard SDRAM Technology - Synchronous operation simplifies timing design and integrates seamlessly with common microprocessors and controllers.
• Power Supply - Single 3V to 3.6V supply voltage compatible with standard 3.3V logic families, reducing power supply complexity.
• Parallel Interface - Direct memory bus connection provides straightforward integration without protocol overhead.
• Commercial Temperature Range - Rated for 0°C to 70°C operation, suitable for indoor and controlled-environment applications.
• 54-TSOP II Package - Thin small-outline package with 0.400-inch width offers compact footprint for space-constrained designs.

Typical Applications

• Embedded Computing Systems - This SDRAM serves as main memory in embedded processors and single-board computers where the 64Mbit capacity and 166MHz performance meet typical program and data storage requirements while maintaining low cost.
• Networking Equipment - The fast access time and parallel interface make this memory suitable for routers, switches, and network processors that need to buffer packets and maintain routing tables with minimal latency.
• Consumer Electronics - Set-top boxes, digital displays, and multimedia devices use this SDRAM for frame buffering and temporary data storage where commercial temperature ratings are sufficient and cost optimization is important.
• Industrial Control Systems - PLCs and automation controllers operating in climate-controlled environments benefit from the reliable synchronous operation for real-time data processing and control algorithms.
• Legacy System Maintenance - Replacement memory for existing designs that were built around standard SDRAM technology, supporting product lifecycle extension and repair operations.

Unique Advantages

• Simple Integration: Standard synchronous DRAM interface reduces design complexity and accelerates development time compared to more complex memory technologies.
• Cost-Effective Memory Solution: Mature SDRAM technology provides economical volatile memory for designs where newer DDR variants would be overspecified.
• Proven Reliability: Well-established memory architecture with predictable behavior simplifies validation and reduces risk in product qualification.
• Low Pin Count: Parallel interface requires no complex protocol implementation, simplifying PCB routing and reducing processor overhead.
• Compact Footprint: 54-TSOP II package minimizes board space requirements while maintaining standard lead pitch for reliable manufacturing.
• Single Supply Operation: 3.3V compatibility eliminates the need for multiple power rails, simplifying power distribution design.

Why Choose IS42S16400D-6TL-TR?

The IS42S16400D-6TL-TR offers a balance of performance, simplicity, and cost for embedded applications requiring standard volatile memory. Its 166MHz operation and 5ns access time provide adequate bandwidth for many processor subsystems, while the straightforward parallel interface minimizes integration complexity. This component is well-suited for designs prioritizing proven technology over cutting-edge specifications, or for maintaining existing products where SDRAM compatibility is required.

Note that this part carries an Obsolete lifecycle status, making it most appropriate for legacy system support, repair operations, or designs where an identical replacement is needed. For new designs requiring long-term availability, consider consulting with ISSI regarding current-generation alternatives with similar specifications.

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Request a quote for the IS42S16400D-6TL-TR or contact our sales team to discuss your memory requirements, alternative solutions, and volume pricing options.