IS42S16400N-7TL-TR

The IS42S16400N-7TL-TR is a 64-megabit synchronous dynamic random access memory (SDRAM) designed for applications requiring reliable, high-speed volatile memory. Built on proven SDRAM technology, this memory IC features a 4M x 16 organization and operates at clock frequencies up to 143MHz. Its standard LVTTL interface and 54-TSOP II package make it a versatile choice for embedded systems, consumer electronics, and computing applications that demand cost-effective memory solutions within the commercial temperature range.

Key Features

• Memory Architecture - 64Mbit capacity organized as 4M words x 16 bits, providing flexible data access for a wide range of applications.
• Clock Frequency - Operates at up to 143MHz, delivering fast synchronous data transfer to keep pace with system processors.
• Access Time - 5.4ns access time (7ns speed grade) ensures rapid read/write operations for time-critical applications.
• Interface - Standard LVTTL interface simplifies integration with common microcontrollers and processors without requiring level shifters.
• Power Supply - Single 3V to 3.6V supply voltage aligns with standard 3.3V logic systems, reducing power supply complexity.
• Package - 54-pin TSOP II package (10.16mm width) offers a balance of pin count and board space efficiency for surface-mount designs.
• Temperature Range - Commercial grade 0°C to 70°C operating range suits standard indoor and consumer applications.

Typical Applications

• Embedded Systems - This SDRAM serves as main system memory in embedded controllers and single-board computers where synchronous operation matches processor bus speeds and the 64Mbit capacity meets typical program and data storage requirements.
• Consumer Electronics - Set-top boxes, digital televisions, and multimedia devices use this memory for buffering video/audio streams and storing application firmware, benefiting from its cost-effective capacity and standard 3.3V operation.
• Networking Equipment - Routers, switches, and access points incorporate this SDRAM for packet buffering and routing table storage, where its 143MHz operating frequency supports high-throughput data forwarding.
• Industrial Control - Programmable logic controllers and process automation equipment rely on this memory for real-time data logging and control algorithm execution within the 0°C to 70°C commercial temperature environment.
• Office Equipment - Printers, scanners, and multifunction devices utilize this DRAM for image buffering and document processing, where the 4M x 16 organization efficiently handles page-sized data.

Unique Advantages

• Industry-Standard Compatibility: LVTTL interface and JEDEC-standard SDRAM timing ensure drop-in compatibility with existing designs, reducing development time and qualification effort.
• Simplified Board Design: Single 3.3V supply operation eliminates the need for multiple voltage rails, reducing BOM costs and board complexity compared to older DRAM technologies.
• Proven SDRAM Technology: Synchronous operation with the system clock simplifies timing design and improves data throughput compared to asynchronous DRAM alternatives.
• Cost-Effective Density: 64Mbit capacity hits the sweet spot for many embedded applications without the cost premium of higher-density parts or the limitations of smaller memories.
• Active Lifecycle Status: Currently active production status provides confidence in long-term availability for ongoing product designs and manufacturing commitments.
• Space-Efficient Packaging: TSOP II package offers higher pin density than DIP alternatives while maintaining good thermal characteristics and ease of inspection for production testing.

Why Choose the IS42S16400N-7TL-TR?

The IS42S16400N-7TL-TR represents a reliable choice for designs requiring synchronous memory with proven SDRAM technology. ISSI's long-standing presence in the memory market ensures consistent supply and technical support, while the part's active lifecycle status provides confidence for both new designs and production continuity. The combination of 143MHz operation, 5.4ns access time, and standard 3.3V interface makes this SDRAM well-suited for cost-sensitive applications where commercial temperature range operation is sufficient.

For engineers designing embedded systems, consumer products, or networking equipment, this memory IC offers a straightforward path to meeting capacity and performance requirements without over-specification. The 4M x 16 organization provides flexibility in addressing schemes, while the LVTTL interface ensures compatibility with a broad range of processors and controllers currently in production.

Request a Quote

Contact our sales team to discuss pricing, availability, and volume discounts for the IS42S16400N-7TL-TR. We can provide technical support for design-in assistance and help you evaluate whether this SDRAM meets your specific application requirements.