IS42S16800J-7TL

The IS42S16800J-7TL is a 128Mbit synchronous DRAM from ISSI designed for embedded systems requiring reliable, cost-effective parallel memory. Organized as 8M x 16, this SDRAM operates at 143MHz with 5.4ns access time and a standard 3.3V supply. Its 54-TSOP II package provides a compact footprint for space-constrained designs while maintaining compatibility with legacy parallel memory interfaces.

This device serves applications in industrial controls, telecommunications equipment, networking devices, and consumer electronics where moderate density volatile memory with proven SDRAM architecture is required. Active lifecycle status ensures long-term availability for designs with extended production cycles.

Key Features

• Memory Architecture - 128Mbit capacity organized as 8M x 16 with synchronous DRAM technology, enabling efficient data throughput for parallel bus architectures.
• Clock Frequency and Access Time - Operates at 143MHz clock frequency with 5.4ns access time, providing responsive memory performance for embedded processors and controllers.
• Power Supply - Standard 3V to 3.6V supply voltage reduces power management complexity and ensures compatibility with common 3.3V system designs.
• Interface - LVTTL parallel memory interface simplifies integration with microcontrollers, DSPs, and FPGAs using conventional memory bus protocols.
• Package - 54-pin TSOP II package with 10.16mm width offers a proven form factor for surface mount assembly with established thermal and mechanical characteristics.
• Operating Temperature - Commercial temperature range of 0°C to 70°C suits indoor equipment and temperature-controlled environments.

Typical Applications

• Industrial Control Systems - This SDRAM provides working memory for programmable logic controllers and industrial computers where 128Mbit density handles control algorithms and data buffering without oversizing the memory subsystem.
• Telecommunications Equipment - Supports packet buffering and protocol processing in routers, switches, and VoIP systems where synchronous operation aligns with system clock domains for efficient data handling.
• Networking Devices - Serves as frame buffer and lookup table storage in network appliances where the 16-bit wide data path matches common embedded processor architectures.
• Consumer Electronics - Delivers display buffering and application memory in set-top boxes, digital displays, and multimedia devices where cost-effective volatile memory supports real-time processing.
• Embedded Computing - Functions as main system RAM in microprocessor-based designs requiring moderate memory density with parallel bus interface compatibility.

Unique Advantages

• Proven SDRAM Technology: Mature synchronous DRAM architecture reduces integration risk and leverages widely understood memory controller design practices.
• Standard 3.3V Operation: Eliminates need for additional voltage rails, simplifying power supply design and reducing BOM cost in 3.3V system environments.
• Compact TSOP II Footprint: Established package format supports automated assembly processes and provides mechanical reliability for industrial applications.
• Active Lifecycle Status: Current production availability ensures component sourcing stability for designs requiring extended manufacturing lifecycles.
• LVTTL Interface Compatibility: Direct connection to common microcontroller and FPGA I/O standards without level shifting or interface translation.
• Right-Sized Density: 128Mbit capacity addresses embedded applications where smaller densities are insufficient but larger densities create unnecessary cost and power overhead.

Why Choose IS42S16800J-7TL?

The IS42S16800J-7TL addresses embedded design requirements for reliable, cost-effective parallel SDRAM with proven technology. Its 143MHz operation and 5.4ns access time provide sufficient performance for real-time control, data buffering, and embedded computing applications without the complexity of higher-speed memory technologies. The standard 3.3V supply and LVTTL interface align with common embedded system architectures, reducing design effort and external component requirements.

This device suits designs prioritizing long-term availability, straightforward integration, and predictable memory behavior. Engineers working on industrial equipment, networking infrastructure, and embedded systems with moderate memory requirements will find the IS42S16800J-7TL's balance of capacity, performance, and commercial temperature range appropriate for indoor and temperature-controlled applications.

Get Started

Contact our sales team to request a quote for the IS42S16800J-7TL or to discuss your memory requirements. Our technical support can assist with integration guidance, reference designs, and volume pricing for production orders.