AS4C32M16D2-25BANTR
| Part Description |
IC DRAM 512MBIT PAR 84TFBGA |
|---|---|
| Quantity | 685 Available (as of May 5, 2026) |
| Product Category | Memory |
|---|---|
| Manufacturer | Alliance Memory, Inc. |
| Manufacturing Status | Obsolete |
| Manufacturer Standard Lead Time | RFQ |
| Datasheet |
Specifications & Environmental
| Device Package | 84-TFBGA (8x12.5) | Memory Format | DRAM | Technology | SDRAM - DDR2 | ||
|---|---|---|---|---|---|---|---|
| Memory Size | 512 Mbit | Access Time | 400 ps | Grade | Automotive | ||
| Clock Frequency | 400 MHz | Voltage | 1.7V ~ 1.9V | Memory Type | Volatile | ||
| Operating Temperature | -40°C ~ 105°C (TC) | Write Cycle Time Word Page | 15 ns | Packaging | 84-TFBGA | ||
| Mounting Method | Volatile | Memory Interface | Parallel | Memory Organization | 32M x 16 | ||
| Moisture Sensitivity Level | 3 (168 Hours) | RoHS Compliance | ROHS3 Compliant | REACH Compliance | REACH Unaffected | ||
| Qualification | N/A | ECCN | EAR99 | HTS Code | 8542.32.0028 |
Overview of AS4C32M16D2-25BANTR - 512Mbit DDR2 SDRAM with Extended Temperature Range
The AS4C32M16D2-25BANTR is a 512Mbit DDR2 SDRAM from Alliance Memory, Inc., organized as 32M x 16 and designed for applications requiring reliable memory performance across extended temperature ranges. Built on proven DDR2 technology with a 400MHz clock frequency and 4ns access time, this parallel interface DRAM delivers dependable data storage and retrieval for embedded systems operating in challenging thermal environments from -40°C to 105°C (TC).
Key Features
- Memory Architecture - 512Mbit capacity organized as 32M x 16, providing flexible word-based access for embedded system designs.
- DDR2 SDRAM Technology - Double data rate synchronous DRAM with 400MHz clock frequency delivers efficient data throughput with 4ns access time and 15ns write cycle time.
- Extended Temperature Performance - Operates reliably across -40°C to 105°C (TC) range, making it suitable for industrial and automotive environments where standard commercial-grade memory may not suffice.
- Power Supply - Standard 1.7V to 1.9V voltage supply range aligns with typical DDR2 system requirements, simplifying power rail design.
- Compact Package - 84-pin TFBGA package (8mm x 12.5mm) offers space-efficient mounting for board designs where footprint optimization is critical.
Typical Applications
- Industrial Control Systems - This DDR2 SDRAM provides working memory for programmable logic controllers (PLCs) and industrial PCs where the extended temperature range ensures reliable operation in factory floor environments subject to heat and cold extremes.
- Embedded Computing Platforms - The 512Mbit capacity and parallel interface support embedded processors in rugged applications such as transportation systems, outdoor equipment, and instrumentation where memory must function across wide temperature swings.
- Test and Measurement Equipment - Provides data buffering and storage for test instruments and measurement devices that require consistent memory performance across varying operating conditions and temperature zones.
- Legacy System Support - Serves as a replacement or extension memory component for existing DDR2-based designs requiring continued production or field repairs, particularly in systems with extended operational lifespans.
Unique Advantages
- Wide Operating Temperature Window: The -40°C to 105°C specification eliminates the need for additional thermal management in many harsh environment applications, reducing system complexity and BOM costs.
- Proven DDR2 Interface Compatibility: Standard DDR2 SDRAM interface ensures drop-in compatibility with existing DDR2 memory controllers and simplifies migration from other DDR2 products.
- Optimized for Embedded Longevity: While the component carries an Obsolete lifecycle status, Alliance Memory specializes in extended availability for industrial and embedded applications, providing sourcing stability for mature product lines.
- Space-Efficient TFBGA Footprint: The compact 84-TFBGA package delivers high pin density in a small 8mm x 12.5mm footprint, maximizing board real estate for other critical components.
- Balanced Density and Organization: The 32M x 16 organization provides a practical balance between memory capacity and word width for many embedded processor architectures.
Why Choose AS4C32M16D2-25BANTR?
The AS4C32M16D2-25BANTR is designed for embedded and industrial systems where DDR2 SDRAM remains the preferred memory technology due to established designs, proven reliability, and controller availability. Its extended temperature rating makes it particularly valuable for applications deployed in thermally challenging environments such as outdoor enclosures, vehicles, and manufacturing facilities. Engineers selecting this component gain access to Alliance Memory's focus on long-term product availability and support for mature memory technologies.
While this product carries an Obsolete lifecycle designation, it serves an important role in supporting existing designs and extending the operational life of fielded systems. For long-term new designs, consult with Alliance Memory regarding current-generation alternatives that may offer enhanced features or more favorable lifecycle positioning.
Request a Quote
Contact our sales team to discuss availability, pricing, and lead times for the AS4C32M16D2-25BANTR. Our application engineers can also provide guidance on integration, thermal considerations, and lifecycle planning for your specific design requirements.
