IS42S32400D-7BI-TR

IC DRAM 128MBIT PAR 90TFBGA
Part Description

IC DRAM 128MBIT PAR 90TFBGA

Quantity 187 Available (as of May 5, 2026)
Product CategoryMemory
ManufacturerIntegrated Silicon Solution Inc
Manufacturing StatusObsolete
Manufacturer Standard Lead TimeRFQ
Datasheet

Specifications & Environmental

Device Package90-TFBGA (8x13)Memory FormatDRAMTechnologySDRAM
Memory Size128 MbitAccess Time5.4 nsGradeIndustrial
Clock Frequency143 MHzVoltage3V ~ 3.6VMemory TypeVolatile
Operating Temperature-40°C ~ 85°C (TA)Write Cycle Time Word PageN/APackaging90-TFBGA
Mounting MethodVolatileMemory InterfaceParallelMemory Organization4M x 32
Moisture Sensitivity Level3 (168 Hours)RoHS ComplianceROHS CompliantREACH ComplianceREACH Unaffected
QualificationN/AECCNEAR99HTS Code8542.32.0002

Overview of IS42S32400D-7BI-TR - 128Mbit SDRAM with Industrial Temperature Range

The IS42S32400D-7BI-TR from ISSI is a high-performance 128Mbit synchronous DRAM designed for embedded systems requiring reliable parallel memory access. Organized as 4M x 32, this SDRAM delivers fast data throughput at 143MHz clock frequency, making it well-suited for applications demanding responsive memory performance in industrial environments. With an extended operating temperature range of -40°C to 85°C, this component ensures stable operation across challenging thermal conditions.

Key Features

  • Memory Architecture: 128Mbit capacity organized as 4M x 32, providing efficient 32-bit wide parallel data access for high-bandwidth applications.
  • Performance: 143MHz clock frequency with 5.4ns access time enables responsive data retrieval for real-time processing requirements.
  • Power Supply: Standard 3V to 3.6V voltage supply simplifies integration into common embedded system power architectures.
  • Temperature Range: Industrial-grade -40°C to 85°C operating range ensures reliable performance in harsh environmental conditions beyond commercial specifications.
  • Package: Compact 90-TFBGA (8x13mm) footprint optimizes board space utilization in space-constrained designs.
  • Interface: Parallel memory interface provides straightforward integration with microcontrollers and processors requiring direct memory access.

Typical Applications

  • Industrial Control Systems: This SDRAM provides working memory for programmable logic controllers and industrial computers where the extended temperature range ensures consistent operation in factory floor environments and the parallel interface enables efficient data buffering for control algorithms.
  • Embedded Computing: The 128Mbit capacity serves as main memory or frame buffer for embedded processors in applications like point-of-sale terminals or medical devices where reliable memory performance is critical for system stability.
  • Data Acquisition Systems: The 143MHz clock frequency supports real-time buffering of sensor data in measurement equipment and monitoring systems where fast access times prevent data loss during high-speed sampling operations.
  • Communication Equipment: This component functions as packet buffer memory in networking hardware and telecommunications infrastructure where the industrial temperature rating maintains performance in outdoor installations and equipment rooms.
  • Automotive Systems: The wide temperature tolerance makes this SDRAM suitable for non-safety-critical automotive applications like infotainment systems or dashboard displays where memory reliability across temperature extremes is essential.

Unique Advantages

  • Extended Temperature Reliability: Industrial -40°C to 85°C rating eliminates the need for additional thermal management in many applications, reducing system complexity and BOM costs.
  • Proven SDRAM Technology: Mature synchronous DRAM architecture offers predictable performance characteristics and straightforward integration compared to more complex memory technologies.
  • Compact Footprint: The 90-TFBGA package delivers substantial memory capacity while minimizing PCB area requirements, enabling more compact product designs.
  • Parallel Interface Simplicity: Direct parallel access eliminates the overhead of serial protocols, streamlining memory controller design and reducing latency for time-sensitive operations.
  • Standard Voltage Operation: 3V to 3.6V supply compatibility allows direct connection to common embedded system power rails without level shifting or additional regulators.
  • Cost-Effective Memory Solution: SDRAM technology provides a balanced price-performance ratio for applications where DRAM volatility is acceptable and cost efficiency is prioritized.

Why Choose IS42S32400D-7BI-TR?

The IS42S32400D-7BI-TR represents a practical memory solution for industrial and embedded applications where proven technology, extended temperature performance, and straightforward integration take priority. Engineers designing equipment that must operate reliably across wide temperature ranges will appreciate the industrial-grade specifications that exceed commercial component limitations. The 128Mbit capacity and 32-bit organization strike an effective balance for systems requiring responsive memory without the complexity of larger, higher-density alternatives.

This SDRAM is particularly well-suited for designs where parallel memory interfaces align with existing processor architectures and where the predictable behavior of synchronous DRAM simplifies system validation and testing. The compact TFBGA package supports miniaturization efforts while the standard voltage operation reduces power supply design complexity.

Get a Quote

Contact our sales team to discuss your memory requirements and request pricing for the IS42S32400D-7BI-TR. Our technical support staff can assist with integration guidance, answer specifications questions, and provide documentation to accelerate your design process.

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