AS4C4M16SA-7TCN
| Part Description |
IC DRAM 64MBIT PAR 54TSOP II |
|---|---|
| Quantity | 121 Available (as of May 4, 2026) |
| Product Category | Memory |
|---|---|
| Manufacturer | Alliance Memory, Inc. |
| Manufacturing Status | Active |
| Manufacturer Standard Lead Time | 8 Weeks |
| Datasheet |
Specifications & Environmental
| Device Package | 54-TSOP II | Memory Format | DRAM | Technology | SDRAM | ||
|---|---|---|---|---|---|---|---|
| Memory Size | 64 Mbit | Access Time | 5.4 ns | Grade | Commercial | ||
| Clock Frequency | 143 MHz | Voltage | 3V ~ 3.6V | Memory Type | Volatile | ||
| Operating Temperature | 0°C ~ 70°C (TA) | Write Cycle Time Word Page | N/A | Packaging | 54-TSOP (0.400", 10.16mm Width) | ||
| Mounting Method | Volatile | Memory Interface | Parallel | Memory Organization | 4M x 16 | ||
| Moisture Sensitivity Level | 3 (168 Hours) | RoHS Compliance | ROHS3 Compliant | REACH Compliance | REACH Unaffected | ||
| Qualification | N/A | ECCN | EAR99 | HTS Code | 8542.32.0002 |
Overview of AS4C4M16SA-7TCN - 64Mbit SDRAM in 54-TSOP II Package
The AS4C4M16SA-7TCN from Alliance Memory is a 64-megabit synchronous DRAM (SDRAM) organized as 4M x 16 bits, designed for high-speed parallel memory applications. Operating at clock frequencies up to 143MHz with a fast 5.4ns access time, this SDRAM delivers reliable performance for embedded systems and computing applications requiring efficient memory bandwidth.
With a 3V to 3.6V supply voltage and commercial temperature range operation, the AS4C4M16SA-7TCN provides a dependable memory solution in a compact 54-TSOP II surface-mount package.
Key Features
- Memory Capacity and Organization - 64Mbit total capacity organized as 4M x 16, providing 16-bit wide data access for efficient data throughput in parallel architectures.
- High-Speed Performance - Supports clock frequencies up to 143MHz with 5.4ns access time, enabling fast memory operations for demanding applications.
- Low Voltage Operation - Operates from a 3V to 3.6V power supply, compatible with standard 3.3V system designs while reducing power consumption compared to 5V alternatives.
- Commercial Temperature Range - Specified for operation from 0°C to 70°C, suitable for indoor commercial and consumer applications.
- Industry-Standard Package - Available in a 54-TSOP II package (0.400", 10.16mm width), providing compatibility with existing board layouts and automated assembly processes.
- Parallel Interface - Standard parallel memory interface for straightforward integration with microcontrollers, processors, and FPGAs.
Typical Applications
- Embedded Computing Systems - This SDRAM serves as main memory or frame buffer in embedded processors where the 4M x 16 organization simplifies bus interfacing and the 143MHz clock speed supports real-time processing requirements.
- Networking Equipment - The AS4C4M16SA-7TCN provides packet buffering and data storage in routers and switches where fast access time ensures low-latency data handling.
- Consumer Electronics - Serves as working memory in set-top boxes, digital displays, and multimedia devices where the compact TSOP II package conserves board space.
- Industrial Control Systems - Provides program and data storage for PLCs and HMI controllers operating within commercial temperature environments.
- Office Automation - Supports memory expansion in printers, copiers, and multifunction devices requiring reliable parallel SDRAM with standard voltage operation.
Unique Advantages
- Second-Source Availability: Alliance Memory provides drop-in compatible alternatives to major DRAM manufacturers, reducing supply chain risk and enabling multi-sourcing strategies.
- Active Product Lifecycle: Currently in active production status, ensuring long-term availability for designs requiring extended product support.
- Balanced Price-Performance: The 64Mbit density and 143MHz operation provide sufficient performance for many applications without the cost premium of higher-density or faster-grade parts.
- Simplified Design Integration: Standard SDRAM interface and widely-used TSOP II package footprint minimize design effort and leverage existing reference designs.
- Proven SDRAM Technology: Mature synchronous DRAM technology offers well-understood timing characteristics and extensive application support documentation.
Why Choose AS4C4M16SA-7TCN?
The AS4C4M16SA-7TCN represents a practical choice for designers requiring reliable 64Mbit SDRAM with proven performance characteristics. Its 4M x 16 organization, 143MHz clock support, and 5.4ns access time address the memory bandwidth needs of embedded systems, networking equipment, and consumer electronics without overspecifying for typical commercial applications.
Alliance Memory's commitment to maintaining active production status makes this device suitable for designs with long product lifecycles. The standard 54-TSOP II package and 3.3V operation ensure compatibility with established design practices and component ecosystems.
Contact Us
Request a quote or contact our sales team to discuss volume pricing and availability for the AS4C4M16SA-7TCN. Our specialists can help evaluate this SDRAM for your specific application requirements.
