AS4C32M8SA-7TCN
| Part Description |
IC DRAM 256MBIT PAR 54TSOP II |
|---|---|
| Quantity | 668 Available (as of May 5, 2026) |
| Product Category | Memory |
|---|---|
| Manufacturer | Alliance Memory, Inc. |
| Manufacturing Status | Active |
| Manufacturer Standard Lead Time | 6 Weeks |
| Datasheet |
Specifications & Environmental
| Device Package | 54-TSOP II | Memory Format | DRAM | Technology | SDRAM | ||
|---|---|---|---|---|---|---|---|
| Memory Size | 256 Mbit | Access Time | 5.5 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 | 32M x 8 | ||
| Moisture Sensitivity Level | 3 (168 Hours) | RoHS Compliance | ROHS3 Compliant | REACH Compliance | REACH Unaffected | ||
| Qualification | N/A | ECCN | EAR99 | HTS Code | 8542.32.0024 |
Overview of AS4C32M8SA-7TCN - 256Mbit SDRAM in 54-TSOP II Package
The AS4C32M8SA-7TCN from Alliance Memory is a 256Mbit Synchronous DRAM (SDRAM) organized as 32M x 8 bits. This parallel interface memory device operates at clock frequencies up to 143MHz with a fast 5.5ns access time, making it suitable for applications requiring reliable high-speed data storage.
Housed in a 54-TSOP II package with 10.16mm width, this SDRAM operates from a 3V to 3.6V supply voltage and is designed for commercial temperature range operation from 0°C to 70°C.
Key Features
- Memory Configuration - 256Mbit capacity organized as 32M x 8 bits, providing a byte-wide data interface for simplified system integration.
- High-Speed Performance - Supports clock frequencies up to 143MHz with 5.5ns access time for demanding throughput requirements.
- Parallel Interface - Standard parallel memory interface enables direct connection to a wide range of processors and controllers.
- Low Voltage Operation - Operates from 3V to 3.6V supply, compatible with 3.3V system designs.
- Commercial Temperature Range - Specified for operation from 0°C to 70°C ambient temperature.
- Industry-Standard Package - 54-TSOP II (10.16mm width) package for compatibility with existing PCB footprints and manufacturing processes.
Typical Applications
- Networking Equipment - This SDRAM provides packet buffering and data storage for routers, switches, and network interface cards where the 143MHz clock speed supports high-bandwidth data handling.
- Consumer Electronics - The 256Mbit capacity and commercial temperature range make this memory suitable for set-top boxes, digital displays, and multimedia devices requiring cost-effective volatile storage.
- Embedded Systems - The parallel interface and standard TSOP II package simplify integration into embedded controllers and single-board computers that need external memory expansion.
- Office Automation - Printers, copiers, and scanners benefit from the fast access time and straightforward parallel interface for image processing and print queue management.
Unique Advantages
- Drop-in Replacement: Industry-standard pinout and package enable seamless substitution in existing designs without PCB modifications.
- Simplified Design: Parallel interface eliminates the complexity of serializer/deserializer circuits required by newer memory technologies.
- Proven Technology: SDRAM architecture offers well-understood timing parameters and mature design ecosystem support.
- Cost-Effective Solution: 256Mbit density in a single package reduces component count compared to using multiple lower-density devices.
- Active Product Status: Currently in active production, ensuring availability for ongoing and new designs.
Why Choose AS4C32M8SA-7TCN?
The AS4C32M8SA-7TCN offers a reliable 256Mbit SDRAM solution for designs requiring proven parallel memory technology. With its 143MHz clock capability, 5.5ns access time, and standard 54-TSOP II package, this device provides straightforward integration into commercial-grade applications.
Alliance Memory maintains this product in active status, supporting both legacy system sustainment and new designs that benefit from SDRAM's mature ecosystem and simplified interface requirements.
Call to Action
Contact our sales team to request a quote for the AS4C32M8SA-7TCN or to discuss your specific memory requirements. Our technical support staff can assist with design-in questions and provide samples for evaluation.
