IS42S32400B-7BL
| Part Description |
IC DRAM 128MBIT PAR 90TFBGA |
|---|---|
| Quantity | 266 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 | 90-TFBGA (8x13) | Memory Format | DRAM | Technology | SDRAM | ||
|---|---|---|---|---|---|---|---|
| Memory Size | 128 Mbit | Access Time | 5.4 ns | Grade | Commercial | ||
| Clock Frequency | 143 MHz | Voltage | 3V ~ 3.6V | Memory Type | Volatile | ||
| Operating Temperature | 0°C ~ 70°C (TA) | Write Cycle Time Word Page | N/A | Packaging | 90-TFBGA | ||
| 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 IS42S32400B-7BL - 128Mbit Synchronous DRAM
The IS42S32400B-7BL is a 128-megabit synchronous dynamic RAM organized as 4M x 32 in a compact 90-pin TFBGA package. This parallel SDRAM delivers reliable, high-speed memory performance for embedded systems, industrial equipment, and consumer electronics. With a clock frequency of 143 MHz and 5.4ns access time, it provides the bandwidth needed for data-intensive applications while maintaining broad compatibility with standard SDRAM controllers.
Key Features
- Memory Architecture - 128Mbit capacity organized as 4M x 32, providing a wide data path ideal for systems requiring efficient parallel data transfer and reducing the number of memory devices needed in multi-chip designs.
- Performance - 143 MHz clock frequency with 5.4ns access time enables responsive data retrieval for real-time processing and moderate-speed buffering applications.
- Power Supply - Operates on standard 3V to 3.6V supply voltage, simplifying integration into existing 3.3V logic systems without additional voltage regulation.
- Package - 90-pin TFBGA (8mm x 13mm) offers a space-efficient footprint for designs where board area is constrained.
- Operating Temperature - Rated for 0°C to 70°C ambient temperature, suitable for commercial and indoor industrial environments.
Typical Applications
- Consumer Electronics - This SDRAM provides working memory for set-top boxes, digital TVs, and home networking equipment where moderate performance and commercial temperature range are sufficient for reliable operation.
- Office and Business Equipment - Serves as main memory or frame buffer in printers, copiers, and point-of-sale terminals where the 4M x 32 organization efficiently handles document processing and display buffering tasks.
- Embedded Computing Systems - Offers cost-effective memory expansion for microcontroller-based designs and embedded controllers operating in temperature-controlled environments such as building automation and indoor monitoring systems.
- Legacy System Support - Provides a replacement or upgrade path for systems designed around parallel SDRAM architecture, maintaining compatibility with existing memory controller interfaces.
Unique Advantages
- Standard Interface Compatibility: Parallel SDRAM interface works with widely available memory controllers and reference designs, reducing development time and risk.
- Wide Data Path: The x32 organization minimizes the number of devices needed to achieve a given memory width, simplifying PCB routing and reducing board complexity.
- Compact Footprint: The 90-TFBGA package delivers high pin count in a small form factor, helping designers meet size constraints in space-limited products.
- Established Technology: SDRAM technology offers a mature, well-understood design approach with extensive support documentation and proven reliability in commercial applications.
Why Choose IS42S32400B-7BL?
The IS42S32400B-7BL is positioned for cost-sensitive commercial designs where parallel SDRAM architecture is already established or where compatibility with legacy systems is required. It suits applications operating in controlled temperature environments that need moderate memory bandwidth without the complexity or cost of newer memory technologies.
For designers working with existing SDRAM-based platforms or seeking a straightforward memory solution for commercial-grade products, this device offers a balance of proven technology, standard interfacing, and compact packaging.
Contact Us
Request a quote for the IS42S32400B-7BL or speak with our technical sales team to discuss how this SDRAM fits your design requirements and to confirm availability for your production timeline.