IS42S32800B-7TLI-TR

The IS42S32800B-7TLI-TR is a 256Mbit synchronous dynamic RAM organized as 8M x 32 from ISSI, Integrated Silicon Solution Inc. Built on SDRAM technology, this volatile memory device delivers reliable parallel interface performance at clock frequencies up to 143MHz with a 5.5ns access time. The device operates across an industrial temperature range of -40°C to 85°C, making it suitable for embedded systems requiring dependable memory in varied environments.

Key Features

• Memory Architecture - 256Mbit capacity organized as 8M x 32, providing a straightforward memory map for 32-bit data bus designs with balanced density and word width.
• SDRAM Technology - Synchronous operation at up to 143MHz clock frequency with 5.5ns access time enables efficient data throughput for applications requiring predictable latency.
• Operating Voltage - 3V to 3.6V supply voltage range supports standard 3.3V logic levels common in embedded processors and controllers.
• Industrial Temperature Range - Specified operation from -40°C to 85°C (TA) ensures functionality in demanding environmental conditions beyond commercial temperature grades.
• Package Format - 86-pin TSOP II package with 10.16mm width provides a compact footprint with proven reliability for through-hole or surface-mount assembly.
• Parallel Interface - Direct parallel memory interface simplifies integration with microprocessors and controllers supporting traditional SDRAM protocols.

Typical Applications

• Industrial Control Systems - This SDRAM serves as main memory in PLCs, motion controllers, and factory automation equipment where the extended temperature range ensures consistent operation in harsh manufacturing environments and the parallel interface provides straightforward integration with industrial microcontrollers.
• Embedded Computing Platforms - Embedded single-board computers and modules use this device for system RAM, benefiting from the 256Mbit density that balances memory requirements with board space constraints while supporting legacy parallel memory bus architectures.
• Telecommunications Equipment - Networking infrastructure and telecommunications systems leverage this SDRAM for packet buffering and routing tables, where the 143MHz operation supports data processing throughput and the industrial temperature rating accommodates equipment room conditions.
• Test and Measurement Instruments - Benchtop and portable test equipment utilize this memory for waveform capture and data acquisition, where reliable operation across temperature extremes is essential and the parallel interface matches the architecture of many signal processing designs.
• Medical Devices - Diagnostic equipment and patient monitoring systems incorporate this SDRAM for real-time data processing and storage, benefiting from proven technology and the extended temperature range needed for devices operating in varied clinical environments.

Unique Advantages

• Simplified BOM for Legacy Designs: Direct SDRAM replacement for existing parallel memory architectures eliminates the need for interface conversion circuitry or controller modifications.
• Proven Reliability in Temperature Extremes: Industrial temperature specification reduces the risk of memory-related failures in equipment deployed across diverse operating environments from cold storage to heated enclosures.
• Predictable Timing Characteristics: Synchronous operation with specified access times enables deterministic system behavior critical for real-time embedded applications where memory latency affects overall system responsiveness.
• Standard Form Factor: TSOP II package with industry-standard pinout and footprint simplifies board layout and allows for multi-sourcing strategies or design reuse across product generations.
• Straightforward Integration: Parallel interface matches traditional microprocessor memory controllers without requiring complex training sequences or calibration procedures typical of newer memory technologies.
• Power Supply Compatibility: 3.0V to 3.6V operating range accommodates standard 3.3V power rails with margin for voltage regulation tolerances, avoiding need for additional voltage converters.

Why Choose IS42S32800B-7TLI-TR?

This SDRAM is well-suited for embedded systems and industrial equipment requiring established parallel memory technology with extended temperature operation. The 8M x 32 organization aligns naturally with 32-bit processor architectures, and the 256Mbit density addresses applications where moderate memory capacity is sufficient. Engineers working with legacy designs or systems requiring straightforward memory subsystem implementation will find this device integrates readily with minimal support circuitry.

The industrial temperature rating and proven TSOP II package format make this SDRAM appropriate for long-lifecycle products in sectors such as industrial automation, medical equipment, and telecommunications infrastructure where field reliability and temperature tolerance are design priorities.

Get a Quote

Contact our sales team to discuss your memory requirements and receive pricing for the IS42S32800B-7TLI-TR. We can provide technical support for integration questions and assist with volume pricing for production orders.