AS4C8M32SA-7BCNTR
| Part Description |
IC DRAM 256MBIT PAR 90TFBGA |
|---|---|
| Quantity | 1,719 Available (as of May 5, 2026) |
| Product Category | Memory |
|---|---|
| Manufacturer | Alliance Memory, Inc. |
| Manufacturing Status | Active |
| Manufacturer Standard Lead Time | 20 Weeks |
| Datasheet |
Specifications & Environmental
| Device Package | 90-TFBGA (8x13) | Memory Format | DRAM | Technology | SDRAM | ||
|---|---|---|---|---|---|---|---|
| Memory Size | 256 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 | 2 ns | Packaging | 90-TFBGA | ||
| Mounting Method | Volatile | Memory Interface | Parallel | Memory Organization | 8M x 32 | ||
| 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 AS4C8M32SA-7BCNTR - 256Mbit SDRAM with Parallel Interface
The AS4C8M32SA-7BCNTR from Alliance Memory is a 256Mbit synchronous DRAM (SDRAM) organized as 8M x 32 bits, designed for applications requiring fast, reliable volatile memory. Built on proven SDRAM technology, this device operates at clock frequencies up to 143MHz with a 5.4ns access time, making it well-suited for embedded systems, industrial controls, and computing applications where cost-effective memory expansion is essential.
Key Features
- Memory Architecture - 256Mbit capacity organized as 8M x 32-bit configuration provides flexible addressing for various system architectures.
- Performance Specifications - 143MHz clock frequency with 5.4ns access time and 2ns write cycle time delivers responsive memory operations for time-sensitive applications.
- Power Supply - Single 3V to 3.6V supply voltage simplifies power design and reduces system complexity.
- Parallel Interface - Standard parallel memory interface ensures straightforward integration with microcontrollers, processors, and FPGAs.
- Package - Compact 90-TFBGA (8x13mm) surface-mount package optimizes board space utilization.
- Operating Temperature - 0°C to 70°C temperature range supports commercial-grade applications.
Typical Applications
- Embedded Computing Systems - This SDRAM serves as main system memory or frame buffer in embedded processors and single-board computers where the parallel interface simplifies integration and the 256Mbit capacity supports moderate data processing requirements.
- Industrial Control Equipment - Provides working memory for programmable logic controllers (PLCs) and industrial PCs where reliable SDRAM technology supports real-time control operations and data buffering.
- Networking Equipment - Functions as packet buffer or routing table memory in routers and switches where the 143MHz clock frequency enables efficient data throughput management.
- Test and Measurement Instruments - Supports data acquisition and waveform storage in oscilloscopes and logic analyzers where fast access times enable high-speed sampling operations.
- Consumer Electronics - Serves as display buffer or application memory in set-top boxes and media players where cost-effective SDRAM technology balances performance with budget constraints.
Unique Advantages
- Proven SDRAM Technology: Well-established architecture reduces integration risk and ensures broad compatibility with existing memory controllers.
- Efficient Board Space Usage: The 90-TFBGA package delivers high pin density in a compact 8x13mm footprint, enabling denser board layouts.
- Simplified Power Management: Single-voltage supply operation reduces the number of required power rails and associated components.
- Cost-Effective Memory Solution: SDRAM technology provides an economical path to memory expansion for applications that don't require DDR performance levels.
- Active Lifecycle Status: Current production availability ensures reliable long-term sourcing for new designs and product sustaining.
- Fast Access Performance: 5.4ns access time supports responsive system operation for data-intensive tasks within the commercial temperature range.
Why Choose AS4C8M32SA-7BCNTR?
The AS4C8M32SA-7BCNTR is positioned for designers seeking dependable, cost-effective memory in commercial-grade embedded systems. Its 8M x 32 organization and parallel interface make it particularly suitable for legacy system upgrades, industrial applications, and designs where proven SDRAM technology is preferred over higher-cost DDR alternatives. The compact TFBGA package and single-voltage operation simplify board design while maintaining the performance characteristics needed for real-time control, data buffering, and moderate-speed computing applications.
For applications operating within the 0°C to 70°C range that require reliable volatile memory with straightforward integration, the AS4C8M32SA-7BCNTR delivers a balance of capacity, speed, and availability backed by Alliance Memory's production commitment.
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