AS4C16M16S-6TAN

The AS4C16M16S-6TAN is a 256-megabit synchronous dynamic random access memory (SDRAM) organized as 16M x 16. Built on proven SDRAM technology, this memory device operates at clock frequencies up to 166MHz with a 5.4ns access time, making it suitable for applications requiring moderate-speed parallel memory access. This DRAM is designed for systems operating in extended temperature ranges from -40°C to 105°C.

Key Features

• Memory Architecture - 256Mbit capacity in a 16M x 16 organization provides efficient data storage for embedded systems and industrial applications.
• Performance Specifications - 166MHz maximum clock frequency with 5.4ns access time and 12ns write cycle time deliver reliable synchronous operation for time-sensitive data processing.
• Power Supply - 3V to 3.6V operating voltage supports standard 3.3V system designs and simplifies power supply requirements.
• Parallel Interface - Traditional parallel memory interface enables straightforward integration with existing system architectures and controllers.
• Package Format - 54-pin TSOP II package (0.400"/10.16mm width) offers industry-standard footprint compatibility for PCB designs.
• Extended Temperature Range - -40°C to 105°C operational capability ensures performance in industrial, automotive-adjacent, and harsh environment applications.

Typical Applications

• Industrial Control Systems - This SDRAM serves as working memory for PLCs, process controllers, and HMI systems where extended temperature tolerance ensures stable operation across factory floor environments.
• Embedded Computing - The parallel interface and moderate clock speed make this device suitable for embedded processors and microcontroller systems requiring buffered data storage and program execution space.
• Legacy System Support - Provides replacement memory for existing designs and equipment that require SDRAM with parallel interface rather than newer serial memory technologies.
• Test and Measurement Equipment - The 256Mbit capacity and synchronous operation support data acquisition systems and instrumentation that capture and process measurement data in real-time.

Unique Advantages

• Extended Temperature Qualification: The -40°C to 105°C range allows deployment in industrial environments without additional thermal management, reducing system complexity.
• Proven SDRAM Technology: Mature synchronous DRAM architecture provides predictable timing characteristics and straightforward controller integration compared to emerging memory types.
• Standard Voltage Operation: 3V to 3.6V supply voltage aligns with common 3.3V system rails, eliminating the need for additional voltage regulators or level shifters.
• Compact TSOP II Package: Industry-standard footprint enables drop-in replacement scenarios and simplifies PCB layout for designs with space constraints.
• Moderate Clock Speed: 166MHz operation balances performance with EMI characteristics and signal integrity requirements in noise-sensitive applications.

Why Choose AS4C16M16S-6TAN?

The AS4C16M16S-6TAN addresses the needs of industrial and embedded system designs that require reliable parallel SDRAM with extended temperature capability. Its combination of 256Mbit capacity, synchronous interface, and wide temperature range makes it appropriate for applications where environmental conditions exceed commercial specifications. The standard TSOP II package and 3.3V operation facilitate integration into existing system architectures.

Note: This product has Obsolete lifecycle status. Designers should verify availability for new designs and consider alternative memory solutions for long-term production requirements.

Contact Us for Pricing and Availability

Request a quote for the AS4C16M16S-6TAN or contact our sales team to discuss your memory requirements, availability timeline, and potential alternatives for your application.