AS4C2M32S-5TCN

The AS4C2M32S-5TCN from Alliance Memory is a 64-megabit synchronous dynamic RAM featuring a 2M x 32 memory organization. Built on proven SDRAM technology, this parallel interface memory delivers reliable performance for embedded systems requiring moderate density volatile storage with straightforward integration. Its 200MHz clock frequency and 5.5ns access time provide responsive data throughput suited for industrial control, networking equipment, and legacy system upgrades.

Housed in an 86-pin TSOP II package, this device operates from a 3V to 3.6V supply and is specified for commercial temperature ranges from 0°C to 70°C. The parallel interface simplifies board design for applications where direct processor connectivity is preferred over serial protocols.

Key Features

• Memory Architecture - 2M x 32 organization delivers 64 megabits of volatile storage with a straightforward word-width configuration for direct processor interfacing.
• Performance Specifications - 200MHz clock frequency with 5.5ns access time and 2ns write cycle time provides responsive data throughput for real-time control and buffering applications.
• Power Supply - Single 3V to 3.6V operation simplifies power delivery design and aligns with common embedded system voltage rails.
• Parallel Interface - Direct address and data bus connectivity eliminates protocol overhead and reduces firmware complexity compared to serial memory architectures.
• Package Option - 86-pin TSOP II package with 10.16mm width offers moderate footprint for space-conscious designs while maintaining reliable surface-mount assembly.
• Temperature Range - Commercial operating temperature from 0°C to 70°C suits standard indoor equipment installations and climate-controlled environments.

Typical Applications

• Industrial Control Systems - This SDRAM provides working memory for programmable logic controllers and human-machine interfaces where moderate capacity and parallel connectivity align with established industrial computing architectures.
• Legacy Equipment Upgrades - The parallel SDRAM interface supports drop-in replacements and capacity upgrades for older embedded systems designed around traditional memory architectures without requiring firmware rewrites.
• Networking Equipment - Functions as packet buffer memory in routers, switches, and gateways where the 200MHz clock frequency handles moderate data rates and the parallel interface integrates with network processor peripherals.
• Test and Measurement Instruments - Serves as data acquisition buffer memory in benchtop equipment where synchronous operation synchronizes with sampling clocks and the commercial temperature range matches standard laboratory environments.
• Embedded Computing Platforms - Provides main system RAM for microcontroller-based designs where the 2M x 32 organization matches 32-bit processor data paths and the 3.3V supply aligns with common embedded voltage standards.

Unique Advantages

• Direct Processor Connectivity: Parallel interface eliminates the need for memory controller ICs or complex serial protocols, reducing component count and simplifying board routing.
• Established Technology Base: SDRAM architecture benefits from decades of manufacturing maturity and broad toolchain support, minimizing integration risk in new designs.
• Straightforward Replacement Path: Standard TSOP II footprint and voltage compatibility facilitate component substitution in existing designs without board redesign.
• Predictable Performance: Synchronous operation with fixed timing specifications simplifies firmware development and memory timing calculations compared to asynchronous DRAM alternatives.
• Commercial Temperature Rating: 0°C to 70°C range provides appropriate margins for temperature-controlled equipment rooms and indoor installations without the cost premium of extended-range parts.
• Single Supply Operation: 3V to 3.6V range eliminates the need for multiple voltage rails, reducing power supply complexity and board space requirements.

Why Choose AS4C2M32S-5TCN?

The AS4C2M32S-5TCN delivers proven SDRAM technology in a configuration optimized for embedded systems requiring parallel memory connectivity. Its 2M x 32 organization and 200MHz clock frequency strike a practical balance between capacity, performance, and design simplicity for industrial control, networking, and legacy equipment applications. The commercial temperature range and standard TSOP II package align with conventional manufacturing processes while the 3.3V supply voltage integrates seamlessly with common embedded platforms.

This device is particularly well-suited for designs where parallel memory interfaces reduce system complexity compared to serial alternatives, and where the commercial temperature specification matches the controlled operating environment. Engineers working with established embedded architectures will appreciate the straightforward integration path and broad toolchain compatibility.

Note: This product carries an Obsolete lifecycle status. Contact Alliance Memory or an authorized distributor to confirm availability and discuss alternative components for new designs requiring long-term supply continuity.

Request a Quote

For pricing, availability, and technical specifications on the AS4C2M32S-5TCN, contact our sales team. We provide application support, sample quantities, and volume pricing to help you evaluate this SDRAM for your embedded system requirements.