IS42S32400B-7BLI-TR

The IS42S32400B-7BLI-TR is a 128Mbit synchronous dynamic random access memory (SDRAM) organized as 4M x 32 bits. This DRAM component operates at clock frequencies up to 143MHz with a 5.4ns access time, providing reliable parallel memory expansion for embedded systems and industrial applications. With an extended temperature range of -40°C to 85°C, this device delivers consistent performance in demanding environmental conditions.

Key Features

• Memory Architecture - 128Mbit capacity organized as 4M x 32-bit words, providing flexible memory configuration for data-intensive applications.
• Clock Performance - Operates at frequencies up to 143MHz with 5.4ns access time, enabling fast data throughput for embedded systems.
• Power Supply - Standard 3V to 3.6V operating voltage simplifies integration into existing 3.3V system designs.
• Extended Temperature Range - Rated for -40°C to 85°C ambient temperature operation, suitable for industrial and automotive environments.
• Package - Compact 90-TFBGA (8x13mm) package offers high pin density while maintaining manageable PCB routing requirements.
• Parallel Interface - Direct parallel interface eliminates protocol overhead and enables straightforward memory expansion.

Typical Applications

• Industrial Control Systems - This SDRAM serves as program memory and data buffering in PLCs and industrial controllers where the extended temperature rating ensures reliable operation in factory floor environments with varying thermal conditions.
• Embedded Computing - The parallel interface and 128Mbit capacity make this device suitable for embedded processors and microcontrollers requiring external RAM expansion for running applications and buffering sensor data.
• Telecommunications Equipment - The device provides data buffering and packet memory in network switches and routers where the 143MHz clock frequency supports moderate-speed data path requirements.
• Test and Measurement Instruments - This SDRAM enables waveform capture and data logging in oscilloscopes and analyzers where the extended temperature range accommodates field deployment scenarios.
• Digital Video Systems - The memory supports frame buffering in video processing applications where the 4M x 32 organization aligns well with typical frame buffer requirements.

Unique Advantages

• Extended Temperature Qualification: The -40°C to 85°C operating range reduces design risk in industrial deployments without requiring expensive temperature-controlled enclosures.
• Proven SDRAM Technology: Well-established SDRAM interface simplifies firmware development and reduces validation time compared to newer memory technologies requiring complex initialization sequences.
• Standard 3.3V Operation: Single-supply voltage eliminates the need for multiple voltage rails, simplifying power supply design and reducing BOM cost.
• Parallel Interface Simplicity: Direct memory mapping enables deterministic access times and straightforward debugging compared to serial memory interfaces with protocol overhead.
• Compact BGA Packaging: The 90-TFBGA package provides higher pin density than traditional TSOP packages while remaining compatible with standard PCB assembly processes.
• Established Supplier: ISSI has decades of memory manufacturing experience, providing supply chain stability for production designs.

Why Choose the IS42S32400B-7BLI-TR?

This SDRAM is an ideal choice for embedded systems requiring reliable external memory expansion with extended temperature operation. The 4M x 32 organization matches common embedded processor data bus widths, while the parallel interface provides deterministic access patterns critical for real-time applications. The device's extended temperature rating makes it particularly well-suited for industrial equipment, outdoor installations, and vehicle-mounted systems where ambient conditions may vary significantly.

For designs requiring moderate memory capacity with proven technology and wide temperature tolerance, the IS42S32400B-7BLI-TR offers a balanced solution that prioritizes reliability and ease of integration over cutting-edge density or speed specifications.

Ready to Integrate?

Contact our technical sales team to discuss your memory requirements and request a quote for the IS42S32400B-7BLI-TR. Our engineers can assist with design integration, provide reference layouts, and recommend complementary components for your embedded system.