Overview
The NT5CB256M16ER-DIT is a 4GB DDR4 SDRAM module manufactured by Nanya Technology, adhering to JEDEC standards for reliability. Designed for 24/7 operation in enterprise environments, it operates at 1.2V with a 2666 Mbps data rate. This 16-bit module uses advanced semiconductor packaging to achieve thermal stability up to 95°C. As a commercial-grade component, it undergoes rigorous testing for signal integrity and power efficiency. The module supports error correction in compatible systems, making it suitable for critical infrastructure where data accuracy is paramount.
Structure and Working Principle
The module comprises multiple 16Gb DRAM chips mounted on a 288-pin PCB, utilizing a dual-die package (DIT) design for space efficiency. Its architecture enables burst lengths of 8 for sequential data access, with CAS latency (CL) configurable between 15-19 cycles. DDR4 technology doubles the internal prefetch width compared to DDR3, allowing higher bandwidth while maintaining backward compatibility with controller interfaces. The on-die termination (ODT) feature reduces signal reflection, particularly beneficial in multi-module configurations common in server racks.
Key Features
Low power operation at 1.2V reduces total cost of ownership for data centers, with optional power-down modes cutting consumption to 3mW in standby. The module supports per-bank refresh for improved efficiency during partial memory access scenarios. Thermal sensors enable dynamic throttling to prevent overheating in confined spaces. With a 16-bit prefetch buffer and data bus inversion (DBI) technology, it minimizes simultaneous switching noise—a critical feature for EMI-sensitive industrial applications.
Application Areas
Primary deployment occurs in cloud server nodes where density and power efficiency are prioritized. The module's industrial temperature rating (-40°C to 95°C) makes it suitable for 5G base stations and edge computing devices exposed to harsh environments. In embedded systems, its small form factor (typically 1.2" height) allows integration into compact designs like medical imaging equipment and avionics. OEMs frequently specify this module for networking appliances requiring sustained throughput, such as routers and firewalls processing high-volume traffic.
Maintenance and Precautions
Installation requires proper grounding to prevent electrostatic discharge (ESD) damage to DRAM chips. Avoid mechanical stress on the PCB during handling, as cracked traces may cause intermittent failures. Modules should be stored in moisture-resistant packaging with desiccant when not in use. For long-term reliability, maintain ambient temperatures below 85°C and ensure adequate airflow in enclosed systems. Periodic memory testing with tools like MemTest86 is recommended for mission-critical deployments to detect early signs of bit errors.
B2B Procurement Guide
Bulk purchases typically require 8-12 week lead times due to semiconductor supply chain dynamics. Verify supplier authenticity through Nanya's authorized distributor network to avoid counterfeit components. Request batch-specific test reports for industrial contracts. Consider total cost including logistics—some vendors offer tray packaging optimized for automated assembly lines. For prototyping, sample quantities may be available through specialist electronics distributors with MOQs as low as 10 units. Negotiate extended warranties for 24/7 operation scenarios.
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