IS42S16400J-7TL

The IS42S16400J-7TL is a 64-megabit synchronous dynamic random access memory (SDRAM) device organized as 4M x 16. Built on proven SDRAM technology, this parallel interface memory solution delivers reliable data storage for embedded systems requiring moderate-density volatile memory with straightforward integration. Operating from a single 3.3V supply and supporting clock frequencies up to 143MHz, the IS42S16400J-7TL provides a practical balance of performance and power efficiency for commercial temperature applications.

Key Features

• Memory Configuration: 64 megabit capacity organized as 4 million words by 16 bits, providing flexible word-wide data access for 16-bit microcontroller and processor architectures.
• Performance: Supports clock frequencies up to 143MHz with 5.4ns access time, enabling responsive system operation for time-sensitive embedded applications.
• Power Supply: Single 3.3V supply (3V to 3.6V range) simplifies power distribution and reduces BOM complexity compared to multi-rail memory solutions.
• Interface: Standard parallel SDRAM interface with synchronous operation ensures compatibility with a wide range of microprocessors and controllers.
• Package: Available in 54-pin TSOP-II (10.16mm width) package, a proven form factor that balances pin count requirements with board space efficiency.
• Operating Temperature: Commercial temperature range of 0°C to 70°C suits standard indoor and controlled-environment applications.

Typical Applications

• Embedded Computing: This SDRAM serves as main system memory in embedded controllers and single-board computers where its 4M x 16 organization aligns with 16-bit data bus architectures, reducing glue logic complexity.
• Consumer Electronics: The device provides data buffering and temporary storage in set-top boxes, digital displays, and home automation controllers where moderate memory density and 3.3V operation match system requirements.
• Instrumentation: In test and measurement equipment, the IS42S16400J-7TL offers fast data capture buffering with its 143MHz clock support, enabling real-time acquisition and processing in commercial-grade instruments.
• Industrial Controls: This memory supports operator interface terminals and programmable logic controllers operating in climate-controlled facilities where the 0°C to 70°C range is appropriate.
• Communications Equipment: The parallel interface and synchronous operation make this SDRAM suitable for packet buffering and routing table storage in networking hardware designed for office and data center environments.

Unique Advantages

• Single-Voltage Design: 3.3V-only operation eliminates the need for multiple power rails, reducing power supply complexity and associated filtering components.
• Industry-Standard Pinout: TSOP-II packaging and standard SDRAM interface ensure broad compatibility with existing board designs and reduce qualification time for new projects.
• Synchronous Operation: Clock-synchronized data transfers simplify timing design and reduce the risk of setup and hold violations compared to asynchronous memory architectures.
• Proven Technology: SDRAM architecture has extensive field history and well-understood behavior patterns, minimizing design risk for reliability-focused applications.
• Right-Sized Capacity: 64Mbit density provides adequate memory for many embedded applications without the cost premium of higher-density devices.
• Compact Footprint: TSOP-II package delivers high pin density in a surface-mount format that supports automated assembly processes.

Why Choose IS42S16400J-7TL?

The IS42S16400J-7TL addresses the needs of embedded system designers requiring reliable, moderate-density SDRAM with straightforward integration. Its 4M x 16 organization aligns naturally with 16-bit processor architectures, while the single 3.3V supply and standard parallel interface reduce design complexity. The commercial temperature range and proven TSOP-II package make this device appropriate for cost-sensitive applications in controlled environments.

For designs where proven technology, compatibility with existing infrastructure, and moderate memory requirements converge, the IS42S16400J-7TL delivers a practical solution backed by ISSI's experience in memory technology.

Get a Quote

Contact our sales team to discuss pricing, availability, and volume requirements for the IS42S16400J-7TL. Our technical support staff can assist with integration questions and provide guidance on selecting the optimal memory solution for your specific application.