IS45S32400B-7TLA1-TR
| Part Description |
IC DRAM 128MBIT PAR 86TSOP II |
|---|---|
| Quantity | 1,558 Available (as of May 5, 2026) |
| Product Category | Memory |
|---|---|
| Manufacturer | Integrated Silicon Solution Inc |
| Manufacturing Status | Obsolete |
| Manufacturer Standard Lead Time | RFQ |
| Datasheet |
Specifications & Environmental
| Device Package | 86-TSOP II | Memory Format | DRAM | Technology | SDRAM | ||
|---|---|---|---|---|---|---|---|
| Memory Size | 128 Mbit | Access Time | 5.4 ns | Grade | Industrial | ||
| Clock Frequency | 143 MHz | Voltage | 3V ~ 3.6V | Memory Type | Volatile | ||
| Operating Temperature | -40°C ~ 85°C (TA) | Write Cycle Time Word Page | N/A | Packaging | 86-TFSOP (0.400", 10.16mm Width) | ||
| Mounting Method | Volatile | Memory Interface | Parallel | Memory Organization | 4M x 32 | ||
| Moisture Sensitivity Level | 3 (168 Hours) | RoHS Compliance | ROHS3 Compliant | REACH Compliance | REACH Unaffected | ||
| Qualification | N/A | ECCN | EAR99 | HTS Code | 8542.32.0002 |
Overview of IS45S32400B-7TLA1-TR - 128Mbit Parallel SDRAM Memory
The IS45S32400B-7TLA1-TR is a 128Mbit synchronous dynamic random access memory (SDRAM) device from ISSI, Integrated Silicon Solution Inc. Organized as 4M x 32, this parallel interface DRAM operates at clock frequencies up to 143MHz with a 5.4ns access time. Designed for industrial temperature range applications, this TSOP II packaged memory delivers reliable volatile storage for embedded systems requiring moderate density and proven SDRAM technology.
Key Features
- Memory Architecture - 128Mbit total capacity organized as 4M x 32, providing a 32-bit wide data bus suitable for direct processor interfacing without external multiplexing.
- Performance Characteristics - 143MHz maximum clock frequency with 5.4ns access time enables high-throughput data transfers for time-sensitive applications.
- Power Supply - Standard 3V to 3.6V operating voltage simplifies power supply design and maintains compatibility with legacy 3.3V systems.
- Temperature Range - Industrial-grade -40°C to 85°C operating range ensures reliable operation in harsh environmental conditions beyond standard commercial specifications.
- Package Configuration - 86-pin TSOP II (10.16mm width) form factor provides compact footprint while maintaining industry-standard pinout compatibility.
Typical Applications
- Industrial Control Systems - This SDRAM provides working memory for programmable logic controllers (PLCs) and distributed control systems where the extended temperature tolerance ensures consistent operation in factory floor and process control environments.
- Embedded Computing - The 32-bit parallel interface makes this memory well-suited for embedded processors and microcontrollers requiring external RAM expansion with minimal latency overhead.
- Test and Measurement Equipment - The combination of moderate capacity and parallel access supports data buffering in oscilloscopes, spectrum analyzers, and data acquisition systems operating in industrial temperature conditions.
- Legacy System Maintenance - As a replacement or upgrade component for existing industrial equipment, this SDRAM maintains compatibility with established parallel memory architectures still in production service.
Unique Advantages
- Direct Processor Integration: The 32-bit parallel interface eliminates the need for serial-to-parallel conversion, reducing component count and simplifying board layout.
- Industrial Reliability: Extended temperature qualification supports deployment in environments where commercial-grade components would experience premature failure or data corruption.
- Established Technology: SDRAM architecture provides mature, well-documented interface timing that simplifies firmware development and reduces integration risks.
- Compact Footprint: The TSOP II package delivers substantial memory capacity in a space-efficient form factor suitable for size-constrained industrial designs.
- Standard Voltage Operation: 3.3V compatibility maintains alignment with widespread industrial power supply standards, avoiding the need for additional voltage regulators.
Why Choose IS45S32400B-7TLA1-TR?
For industrial embedded systems requiring reliable, moderate-capacity volatile memory with parallel interface compatibility, the IS45S32400B-7TLA1-TR offers proven SDRAM technology in an industrial-grade package. The 128Mbit capacity and 32-bit organization match the requirements of legacy industrial computing architectures while the extended temperature range addresses the demanding environmental conditions common in automation, control, and instrumentation applications.
This component serves as a dependable memory solution for designs prioritizing established interface standards, industrial temperature qualification, and straightforward integration over cutting-edge density or power efficiency metrics.
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Contact our technical sales team for pricing, availability, and application support for the IS45S32400B-7TLA1-TR. We can provide detailed specifications, reference designs, and guidance on integration into your industrial embedded system.
