IS42S32800B-7T-TR

The IS42S32800B-7T-TR is a 256-megabit synchronous dynamic random access memory (SDRAM) IC from ISSI, Integrated Silicon Solution Inc. This parallel interface DRAM features an 8M x 32 memory organization and operates at clock frequencies up to 143MHz with 5.5ns access time. Designed for embedded applications requiring substantial temporary data storage, this SDRAM provides reliable performance across standard commercial temperature ranges.

Built on proven SDRAM technology, this memory IC supports a 3V to 3.6V operating voltage range, making it compatible with common embedded system power rails. The 86-TSOP II package offers a compact footprint while providing the parallel interface necessary for high-throughput data transfer applications.

Key Features

• Memory Architecture - 256Mbit total capacity organized as 8M words x 32 bits, providing flexible access to large blocks of volatile memory for data-intensive operations.
• High-Speed Operation - 143MHz maximum clock frequency with 5.5ns access time enables rapid read/write cycles for real-time data processing and buffering applications.
• Parallel Interface - Direct parallel data bus connection supports high bandwidth requirements without the protocol overhead of serial interfaces.
• Standard Voltage Operation - 3V to 3.6V supply voltage aligns with common embedded system power designs, simplifying integration and power management.
• Commercial Temperature Range - Rated for 0°C to 70°C ambient operation, suitable for indoor and controlled-environment applications.
• Compact 86-TSOP II Package - 0.400" (10.16mm) width surface-mount package balances pin count requirements with board space efficiency.

Typical Applications

• Consumer Electronics - This SDRAM serves as main system memory in set-top boxes, digital TVs, and gaming consoles where cost-effective volatile storage supports video buffering and application execution.
• Embedded Computing Systems - The parallel interface and moderate speed make this memory suitable for microprocessor and microcontroller systems requiring working memory for data processing and temporary storage.
• Networking Equipment - In routers and switches operating in climate-controlled environments, this DRAM provides packet buffering and routing table storage with the speed needed for moderate-throughput network traffic.
• Office Equipment - Printers, copiers, and document scanners use this type of SDRAM for image buffering and processing where the commercial temperature range matches typical office conditions.
• Test and Measurement Instruments - Benchtop equipment benefits from the parallel interface bandwidth for high-speed data acquisition and waveform storage in laboratory settings.

Unique Advantages

• Proven SDRAM Technology: Mature architecture offers well-understood timing characteristics and broad ecosystem support, reducing development risk and time-to-market.
• Parallel Interface Bandwidth: Direct bus connection delivers consistent throughput without serial protocol translation overhead, ideal for memory-mapped architectures.
• Flexible Memory Organization: The 8M x 32 configuration matches common 32-bit processor architectures, minimizing address translation complexity and improving access efficiency.
• Standard Operating Voltage: 3.3V nominal operation eliminates the need for additional voltage regulators in most embedded designs, reducing BOM cost and board complexity.
• Established Supply Chain: TSOP II packaging represents a widely-supported standard with broad manufacturing infrastructure and second-source availability.
• Cost-Effective Capacity: 256Mbit density provides substantial working memory for mid-range applications without the premium associated with higher-capacity devices.

Why Choose IS42S32800B-7T-TR?

The IS42S32800B-7T-TR represents a practical choice for embedded designs requiring reliable volatile memory in commercial operating environments. The parallel SDRAM architecture offers straightforward integration with legacy and current processor designs that expect traditional memory interfaces. With 256Mbits of capacity and 143MHz operation, this memory IC addresses the needs of applications where moderate performance and proven technology take precedence over cutting-edge specifications.

This component is particularly well-suited for cost-sensitive designs in consumer electronics, office equipment, and embedded computing where the commercial temperature range aligns with expected operating conditions. Engineers working with existing designs or platforms that leverage parallel memory interfaces will find this SDRAM provides a direct migration path or replacement option within established architectures.

Request a Quote

Contact our sales team to discuss pricing, availability, and volume discounts for the IS42S32800B-7T-TR. Our technical support staff can assist with integration questions, timing specifications, and design recommendations to ensure this memory IC meets your application requirements.