IS42S16400N-7TL

The IS42S16400N-7TL is a 64-megabit synchronous dynamic random-access memory (SDRAM) chip organized as 4M x 16, designed for applications requiring moderate-density volatile memory with high-speed data access. Built on SDRAM technology with LVTTL interface, this memory IC operates at clock frequencies up to 143MHz with a 5.4ns access time, making it suitable for embedded systems, consumer electronics, and industrial applications where reliable temporary data storage is essential.

This SDRAM delivers robust performance across commercial temperature ranges and integrates seamlessly into 3.3V systems, offering engineers a cost-effective memory solution for designs requiring fast read/write cycles and parallel data handling.

Key Features

• Memory Architecture - 64-megabit capacity organized as 4 million words by 16 bits, providing flexible data bus width for parallel processing applications.
• High-Speed Operation - Operates at clock frequencies up to 143MHz with 5.4ns access time, enabling rapid data retrieval and storage for time-sensitive applications.
• LVTTL Interface - Low-voltage TTL interface simplifies integration with standard 3.3V logic families commonly used in embedded systems.
• Power Supply - Single 3V to 3.6V supply voltage reduces power management complexity and supports standard 3.3V system designs.
• Temperature Range - Commercial-grade operation from 0°C to 70°C ensures reliable performance in typical indoor and controlled-environment applications.
• Package Format - 54-pin TSOP II package with 10.16mm width offers a compact footprint suitable for space-constrained PCB layouts.

Typical Applications

• Embedded Systems - Provides working memory for microcontroller-based systems where the 64Mbit capacity and fast access times support program execution and data buffering in set-top boxes, networking equipment, and embedded computers.
• Consumer Electronics - Serves as main memory or frame buffer in devices such as digital cameras, printers, and home appliances where moderate density SDRAM delivers the performance needed for user interface responsiveness and data processing.
• Industrial Control - Supplies reliable volatile memory for programmable logic controllers (PLCs), human-machine interfaces (HMIs), and process control systems operating within commercial temperature ranges.
• Networking Equipment - Functions as packet buffer memory in routers, switches, and network interface cards where the parallel 16-bit interface and 143MHz operation support efficient data handling.
• Test and Measurement Instruments - Offers data acquisition and waveform storage capabilities in oscilloscopes, spectrum analyzers, and data loggers that require fast memory with moderate capacity.

Unique Advantages

• Simplified Bill of Materials: Single 3.3V supply voltage eliminates the need for multiple voltage rails, reducing power supply component count and design complexity.
• Proven SDRAM Technology: Mature synchronous DRAM architecture provides predictable performance characteristics and simplified timing design compared to asynchronous memory types.
• Standard LVTTL Interface: Direct compatibility with common 3.3V logic reduces the need for level shifters or interface ICs, streamlining board design and lowering system cost.
• Compact Package Footprint: 54-TSOP II format delivers high pin density in a space-efficient form factor, helping designers meet tight PCB area constraints.
• Active Lifecycle Status: Ongoing production availability supports long-term product development and reduces supply chain risk for multi-year product lifecycles.
• Wide Operating Voltage Window: 3V to 3.6V supply range provides tolerance for voltage variations and simplifies integration across different system designs using 3.3V nominal rails.

Why Choose IS42S16400N-7TL?

The IS42S16400N-7TL SDRAM is positioned as a reliable, cost-effective memory solution for commercial-grade embedded and consumer applications requiring 64Mbit of volatile storage. Its 143MHz operation, LVTTL interface, and single 3.3V supply make it particularly well-suited for designs where simplicity, proven technology, and moderate density align with product requirements. Engineers working on networking equipment, industrial controls, or consumer electronics will find this SDRAM offers a straightforward integration path with minimal support circuitry.

For designs with multi-year production horizons, the active lifecycle status and mature SDRAM technology provide confidence in long-term availability and stable performance characteristics, reducing the risk of costly redesigns due to component obsolescence.

Get Started

Contact our sales team to request a quote for the IS42S16400N-7TL or to discuss your specific memory requirements. Our technical support staff can assist with integration questions, timing analysis, and PCB layout recommendations to help ensure successful implementation in your design.