IS42S16800F-7TL

The IS42S16800F-7TL is a 128-megabit synchronous dynamic random-access memory (SDRAM) offering 8M x 16 organization in a compact 54-pin TSOP II package. This parallel-interface DRAM operates at clock frequencies up to 143 MHz with a 5.4 ns access time, making it suitable for commercial-grade applications requiring moderate-density volatile memory. With a standard 3V to 3.6V supply voltage and 0°C to 70°C operating temperature range, this device provides reliable temporary data storage for embedded systems and industrial equipment.

Key Features

• 128Mbit Memory Capacity - Organized as 8 million words by 16 bits, providing sufficient storage for buffering, caching, and temporary data retention in embedded applications.
• 143 MHz Clock Frequency - Synchronous operation up to 143 MHz enables fast data transfer rates for time-sensitive applications while maintaining compatibility with standard SDRAM controllers.
• 5.4 ns Access Time - Rapid access time ensures low-latency read and write operations, supporting performance requirements in data acquisition and processing systems.
• Parallel Interface - Direct parallel memory interface simplifies integration with microcontrollers, DSPs, and FPGAs using standard SDRAM protocols.
• 54-TSOP II Package - Thin small-outline package with 0.400" (10.16mm) width provides space-efficient surface-mount footprint for compact PCB designs.
• Commercial Temperature Range - Specified for 0°C to 70°C operation, covering standard indoor and controlled-environment applications.

Typical Applications

• Embedded Computing Systems - This SDRAM serves as main system memory or frame buffer in embedded computers and single-board computers where moderate density and standard voltage operation align with commercial-grade requirements.
• Data Acquisition Equipment - The fast access time and parallel interface make this device suitable for buffering sampled data in measurement instruments and data loggers operating in controlled environments.
• Industrial Control Systems - Provides working memory for PLCs, HMIs, and industrial controllers where the commercial temperature range matches typical indoor factory conditions.
• Networking Equipment - Functions as packet buffer or routing table storage in switches and routers designed for office or server room deployment.
• Test and Measurement Instruments - Supports temporary data storage in benchtop instruments and lab equipment where the 0°C to 70°C range meets operational requirements.

Unique Advantages

• Standard SDRAM Protocol Compatibility: Integrates seamlessly with existing SDRAM controller designs, reducing development time and leveraging proven reference designs.
• Balanced Speed and Density: 143 MHz operation and 128Mbit capacity address mid-range performance needs without over-specifying for cost-sensitive applications.
• Compact Surface-Mount Package: 54-TSOP II footprint conserves PCB space while maintaining manufacturability with standard SMT assembly processes.
• Single 3.3V Supply Operation: Simplifies power distribution with compatibility to common 3.3V logic families, reducing power supply complexity.
• Proven SDRAM Architecture: Synchronous DRAM technology offers predictable timing behavior and broad ecosystem support with mature design resources.
• Cost-Effective Memory Solution: Commercial-grade specifications provide reliable performance for indoor applications at an economical price point.

Why Choose IS42S16800F-7TL?

The IS42S16800F-7TL addresses commercial-grade embedded applications requiring proven SDRAM technology in a compact package. Its 128Mbit density strikes a balance for systems needing more than basic SRAM but not requiring multi-gigabit DDR solutions, while the parallel interface and standard voltage operation simplify integration. The device is positioned for designs prioritizing straightforward implementation and commercial temperature specifications over extended industrial or automotive qualifications.

Please note that this part has an Obsolete lifecycle status. While existing inventory may be available, designers should confirm long-term availability and consider migration planning for new designs. This device remains suitable for legacy system support, replacement applications, and short-production-run projects.

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