AS4C4M16SA-5TCNTR

The AS4C4M16SA-5TCNTR from Alliance Memory is a 64-megabit synchronous dynamic RAM (SDRAM) designed for embedded systems and computing applications requiring moderate-density volatile memory. Organized as 4 million words by 16 bits, this parallel interface SDRAM operates at 200MHz clock frequency, providing reliable performance for data buffering, program execution, and real-time processing tasks.

Key Features

• 64Mbit SDRAM Architecture - Organized as 4M x 16, this synchronous DRAM provides 8MB of high-speed volatile memory with parallel data access for embedded computing and industrial control applications.
• 200MHz Clock Frequency - Supports data rates up to 200MHz with 4.5ns access time, enabling fast read/write operations for time-sensitive applications.
• 3.3V Single Supply Operation - Operates on a standard 3V to 3.6V supply voltage, simplifying power design and ensuring compatibility with 3.3V logic systems.
• Commercial Temperature Range - Rated for 0°C to 70°C ambient temperature operation, suitable for office, residential, and light industrial environments.
• 54-TSOP II Package - Compact 54-pin Thin Small Outline Package (10.16mm width) provides space-efficient mounting for PCB designs.

Typical Applications

• Embedded Computing - This SDRAM serves as main memory or cache in microprocessor-based systems where moderate density and synchronous operation improve data throughput compared to asynchronous DRAM.
• Industrial Controllers - The 0°C to 70°C operating range makes this memory suitable for programmable logic controllers (PLCs) and human-machine interfaces (HMIs) deployed in climate-controlled industrial facilities.
• Networking Equipment - Provides packet buffering and routing table storage in switches and routers where the 200MHz clock frequency supports line-rate processing at moderate bandwidths.
• Point-of-Sale Terminals - Supports operating systems and transaction processing in retail terminals and kiosks where compact form factor and commercial temperature tolerance meet deployment requirements.
• Test and Measurement Instruments - Enables data acquisition buffering and waveform storage in benchtop equipment operating in controlled laboratory environments.

Unique Advantages

• Simplified 16-bit Interface: The 4M x 16 organization reduces address line count compared to narrower configurations, simplifying PCB routing and reducing connection complexity.
• Industry-Standard SDRAM Protocol: Synchronous interface with standard command set ensures broad compatibility with existing memory controllers and reduces development time.
• Cost-Effective Density: The 64Mbit capacity addresses applications between low-density SRAM and high-density DDR memory, optimizing cost for moderate storage requirements.
• Space-Efficient Footprint: The 54-TSOP II package balances pin count with board space, enabling compact designs without resorting to fine-pitch ball grid arrays.
• Active Lifecycle Status: Current production availability supports both new designs and long-term product manufacturing without obsolescence concerns.

Why Choose AS4C4M16SA-5TCNTR?

The AS4C4M16SA-5TCNTR offers a proven SDRAM solution for designs requiring moderate memory density with synchronous operation. Its 200MHz clock capability and 4.5ns access time deliver sufficient performance for embedded applications while maintaining the simplicity and cost advantages of parallel SDRAM versus higher-speed DDR technologies. The commercial temperature range and standard 3.3V operation make integration straightforward for systems deployed in controlled environments.

This memory component suits engineering teams seeking reliable, cost-effective volatile storage for industrial controls, networking equipment, and embedded computing platforms where the 64Mbit density and synchronous interface meet functional requirements without over-specifying performance or environmental capabilities.

Ready to Integrate AS4C4M16SA-5TCNTR Into Your Design?

Contact our technical sales team for pricing, lead times, and volume availability. We provide application support to help you evaluate this SDRAM for your specific design requirements.