AS4C4M32SA-6TCN

The AS4C4M32SA-6TCN is a 128-megabit synchronous dynamic RAM (SDRAM) component from Alliance Memory, Inc. Built on proven SDRAM technology, this module is organized as 4M x 32 and operates at clock frequencies up to 166MHz. Designed for commercial applications requiring reliable parallel memory interface, it serves embedded systems, industrial controllers, and general computing applications where cost-effective, high-density memory is essential.

Key Features

• Memory Architecture - 128Mbit capacity organized as 4M x 32, providing efficient data width for 32-bit systems and applications requiring parallel data access.
• High-Speed Performance - Operates at 166MHz clock frequency with 5.4ns access time and 2ns write cycle time, enabling fast read/write operations for time-sensitive applications.
• Standard SDRAM Technology - Volatile SDRAM technology with synchronous operation ensures compatibility with a wide range of processor architectures and memory controllers.
• Power Supply - Operates on standard 3V to 3.6V supply voltage, compatible with common embedded system power rails.
• Commercial Temperature Range - Rated for 0°C to 70°C operating temperature, suitable for indoor commercial and industrial environments.
• Space-Efficient Package - Housed in 86-pin TSOP II package with 10.16mm width, offering high pin density in a compact surface-mount form factor.

Typical Applications

• Industrial Automation - This SDRAM provides reliable memory for programmable logic controllers (PLCs) and human-machine interfaces where the 4M x 32 organization efficiently handles control algorithms and visualization data in manufacturing environments.
• Embedded Computing Systems - The 128Mbit capacity and parallel interface make this component suitable for single-board computers and embedded processors that require moderate memory density without the complexity of DDR interfaces.
• Networking Equipment - Supports buffer memory and packet processing in routers, switches, and communications devices where the 166MHz operation and 32-bit width facilitate efficient data throughput.
• Test and Measurement Instruments - Provides data acquisition buffering and waveform storage in oscilloscopes and analyzers where synchronous operation simplifies timing design with digital signal processors.
• Point-of-Sale Systems - Serves as main memory in retail terminals and kiosks operating in climate-controlled environments, where the commercial temperature range and standard voltage requirements reduce system complexity.

Unique Advantages

• Simplified Design Integration: Standard SDRAM interface and conventional pinout reduce development time and enable use of existing memory controller IP and reference designs.
• Cost-Effective Density: Provides 128Mbit capacity in a mature technology that balances performance requirements with component cost for price-sensitive applications.
• Proven Reliability: SDRAM technology has decades of field deployment history, offering predictable behavior and well-understood failure modes for quality-critical designs.
• Wide Availability: Alliance Memory provides reliable supply of legacy and current-generation memory components, reducing obsolescence risk in long-lifecycle products.
• Parallel Interface Simplicity: Direct parallel access eliminates the need for complex DDR training sequences and timing calibration, simplifying FPGA and microcontroller interfacing.
• Active Lifecycle Status: Currently in active production, ensuring ongoing availability for new designs and product refreshes.

Why Choose AS4C4M32SA-6TCN?

The AS4C4M32SA-6TCN offers a practical memory solution for designs that prioritize straightforward integration and proven technology over cutting-edge performance. Its 32-bit organization aligns naturally with common processor architectures, while the 166MHz operation provides adequate speed for most embedded control and data processing tasks. The commercial temperature range suits the vast majority of indoor applications without the cost premium of extended-temperature components.

For engineers developing industrial equipment, networking appliances, or embedded systems with moderate memory requirements, this SDRAM delivers reliable performance with minimal design complexity. Alliance Memory's focus on maintaining production of established memory technologies provides supply chain stability for products with multi-year lifecycles.

Get a Quote

To request pricing, check stock availability, or discuss your application requirements for the AS4C4M32SA-6TCN, contact our sales team. We can provide technical support, volume pricing, and delivery schedules to meet your project timeline.