IS42S32400J-6TLI

The IS42S32400J-6TLI is a 128-megabit synchronous dynamic random access memory (SDRAM) designed for embedded systems requiring fast, high-density volatile memory. Organized as 4M x 32 bits, this LVTTL-compatible device operates at clock frequencies up to 166MHz with a 5.4ns access time, making it ideal for applications demanding real-time data processing and temporary storage.

Manufactured by ISSI (Integrated Silicon Solution Inc), this SDRAM combines reliable DRAM technology with industry-standard synchronous architecture. Its extended temperature range and robust design make it suitable for industrial and automotive-adjacent applications requiring consistent performance across varying environmental conditions.

Key Features

• Memory Architecture - 128Mbit capacity organized as 4M x 32-bit words, providing efficient data access for 32-bit processor systems and wide data bus applications.
• Performance - 166MHz clock frequency with 5.4ns access time enables rapid read/write operations for time-sensitive embedded applications and real-time processing tasks.
• Interface - LVTTL-compatible interface simplifies integration with standard digital logic while ensuring signal integrity and reducing the need for level shifters.
• Power Supply - Operates on 3V to 3.6V supply voltage, compatible with common embedded system power rails and enabling straightforward power management.
• Temperature Range - Qualified for -40°C to 85°C operation, supporting deployment in industrial environments where ambient temperatures fluctuate beyond consumer-grade ranges.
• Package - Available in 86-pin TSOP II package (10.16mm width), providing a space-efficient footprint for PCB layouts while maintaining reliable pin connections.

Typical Applications

• Industrial Control Systems - This SDRAM serves as high-speed working memory for programmable logic controllers (PLCs) and human-machine interfaces (HMIs), where the extended temperature range ensures reliable operation in factory floor environments and the synchronous interface simplifies timing design.
• Embedded Computing - The 4M x 32 organization aligns efficiently with 32-bit microprocessors and DSPs in embedded systems, providing the temporary storage needed for buffering sensor data, executing real-time algorithms, and managing communication protocols.
• Data Acquisition Systems - The 166MHz clock capability supports high-speed data capture applications where incoming sensor or ADC data must be buffered before processing or transmission, while the 128Mbit capacity accommodates substantial sample sets.
• Network Infrastructure Equipment - This memory is well-suited for routers, switches, and edge devices requiring packet buffering and routing table storage, where the synchronous architecture synchronizes with system clocks and the LVTTL interface integrates with standard networking ASICs.
• Automotive Electronics - While not AEC-qualified, the extended temperature tolerance makes this component appropriate for automotive-adjacent applications such as diagnostic equipment, aftermarket infotainment systems, and testing tools used in vehicle manufacturing environments.

Unique Advantages

• Simplified System Design: LVTTL-compatible signaling eliminates the need for voltage level translation circuitry, reducing component count and simplifying PCB routing.
• Reduced BOM Cost: The 4M x 32 organization provides 128Mbit capacity in a single device, minimizing the number of memory ICs required compared to using multiple smaller-capacity chips.
• Extended Reliability: The -40°C to 85°C temperature rating ensures consistent performance across industrial environments without requiring additional thermal management components.
• Proven SDRAM Technology: Synchronous DRAM architecture has decades of field-proven reliability and is well-understood by design engineers, reducing development risk compared to newer memory technologies.
• Clock-Aligned Operation: Synchronous interface eliminates complex asynchronous timing considerations, simplifying FPGA and microcontroller interfacing while improving timing margin.
• Standard Footprint: The 86-pin TSOP II package is an industry-standard form factor with established PCB design rules, enabling straightforward layout and compatibility with automated assembly processes.

Why Choose the IS42S32400J-6TLI?

This SDRAM represents a reliable memory solution for engineers designing embedded systems requiring synchronous high-speed volatile storage. Its combination of 128Mbit capacity, 166MHz performance, and extended temperature tolerance positions it as a practical choice for industrial control, embedded computing, and data acquisition applications where standard commercial memory components may not provide adequate environmental specifications.

The IS42S32400J-6TLI offers long-term value through its proven SDRAM technology, industry-standard LVTTL interface, and space-efficient packaging. For design teams seeking to balance performance, reliability, and cost in memory subsystem design, this component provides a well-characterized solution backed by ISSI's experience in memory manufacturing.

Get Started

Request a quote for the IS42S32400J-6TLI or contact our sales team to discuss your memory requirements. We can provide technical support, pricing information, and volume availability to help integrate this SDRAM into your next design.