IS42S16400J-6BL

The IS42S16400J-6BL is a 64-megabit synchronous dynamic random access memory (SDRAM) chip organized as 4 million words by 16 bits. Built on proven SDRAM technology, this device delivers reliable parallel memory access at clock frequencies up to 166 MHz with a 5.4 ns access time. Housed in a space-efficient 54-pin TFBGA package measuring just 8x8mm, it provides an ideal memory solution for embedded systems, consumer electronics, and industrial equipment operating in standard commercial temperature environments.

Key Features

• Memory Architecture - 64 Mbit capacity configured as 4M x 16, providing flexible word-wide data access for applications requiring moderate density memory with 16-bit data paths.
• Performance - Operates at clock frequencies up to 166 MHz with 5.4 ns access time, delivering responsive read and write operations for time-sensitive embedded applications.
• Power Supply - Single 3V to 3.6V supply voltage simplifies power distribution and supports integration with standard 3.3V logic families commonly used in embedded designs.
• Package - 54-pin TFBGA in an 8x8mm footprint offers significant board space savings compared to larger memory packages, enabling compact product designs.
• Temperature Range - Qualified for 0°C to 70°C commercial operation, suitable for indoor equipment and consumer applications with controlled thermal environments.
• Interface - Standard parallel memory interface with synchronous operation enables straightforward integration with microcontrollers, processors, and FPGAs without specialized memory controllers.

Typical Applications

• Embedded Systems - The IS42S16400J-6BL serves as working memory in microcontroller-based systems where its parallel interface provides direct, low-latency access for program execution and data buffering in devices like set-top boxes and network appliances.
• Consumer Electronics - This SDRAM supports video buffering and display frame storage in devices such as digital cameras, portable media players, and handheld gaming systems where the compact TFBGA package enables slim product profiles.
• Industrial Controls - The chip provides data storage and buffering memory for human-machine interfaces (HMIs), programmable logic controllers (PLCs), and test equipment operating within commercial temperature ranges where reliable memory operation supports consistent system performance.
• Legacy Product Support - As manufacturers maintain existing product lines, this SDRAM offers a replacement option for systems designed around 64Mbit parallel DRAM architectures requiring 4M x 16 organization.

Unique Advantages

• Compact Footprint for Space-Constrained Designs: The 8x8mm TFBGA package delivers 64 Mbit capacity in minimal board area, allowing designers to allocate more space to other components or reduce overall product size.
• Single Voltage Operation Simplifies Power Design: Operating from a single 3.3V supply eliminates the need for multiple voltage rails, reducing BOM cost and simplifying power distribution routing on the PCB.
• Standard Parallel Interface Reduces Integration Complexity: The synchronous parallel memory interface works directly with common processors and controllers without requiring specialized memory controller IP, shortening development time.
• Proven SDRAM Technology Ensures Reliability: Based on mature synchronous DRAM architecture, this device offers predictable behavior and well-understood operational characteristics that reduce risk in production designs.
• 16-Bit Organization Matches Common Bus Widths: The 4M x 16 configuration aligns naturally with 16-bit microcontrollers and processors, enabling efficient data transfers without width conversion overhead.
• 166 MHz Operation Supports Real-Time Processing: The clock frequency capability provides sufficient bandwidth for applications requiring responsive memory access, including video processing and real-time control tasks.

Why Choose IS42S16400J-6BL?

The IS42S16400J-6BL addresses the specific needs of designers working with established parallel memory architectures who require a compact, straightforward memory solution. Its combination of standard SDRAM interface, moderate density, and space-efficient packaging makes it particularly well-suited for cost-sensitive embedded applications where proven technology reduces development risk. The single 3.3V supply and commercial temperature rating align with typical requirements for consumer and indoor industrial equipment.

For design teams maintaining existing products or developing new systems around established memory interfaces, this device provides a reliable option backed by ISSI's experience in memory solutions. The 64 Mbit density occupies a practical middle ground between smaller devices that may require multiple chips and larger densities that exceed application requirements.

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Contact our sales team to discuss pricing, availability, and technical support for the IS42S16400J-6BL. We can assist with integration questions, provide detailed specifications, and help ensure this SDRAM meets your design requirements.