AS4C8M16S-6TIN
| Part Description |
IC DRAM 128MBIT PAR 54TSOP II |
|---|---|
| Quantity | 449 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 | 54-TSOP II | Memory Format | DRAM | Technology | SDRAM | ||
|---|---|---|---|---|---|---|---|
| Memory Size | 128 Mbit | Access Time | 5 ns | Grade | Industrial | ||
| Clock Frequency | 166 MHz | Voltage | 3V ~ 3.6V | Memory Type | Volatile | ||
| Operating Temperature | -40°C ~ 85°C (TA) | Write Cycle Time Word Page | 2 ns | Packaging | 54-TSOP (0.400", 10.16mm Width) | ||
| Mounting Method | Volatile | Memory Interface | Parallel | Memory Organization | 8M 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 AS4C8M16S-6TIN - 128Mbit Parallel SDRAM Module
The AS4C8M16S-6TIN from Alliance Memory is a 128Mbit synchronous dynamic random access memory (SDRAM) device configured as 8M x 16. This parallel interface DRAM operates at clock frequencies up to 166MHz with a fast 5ns access time, making it suitable for embedded systems requiring reliable memory performance. Built on proven SDRAM technology with a 3V to 3.6V supply range, this component serves applications in industrial control, telecommunications, and legacy system support.
Key Features
- Memory Architecture - 8M x 16 organization provides 128Mbit total capacity in a parallel interface configuration, optimized for 16-bit data bus systems.
- High-Speed Operation - 166MHz clock frequency with 5ns access time and 2ns write cycle time enables responsive system performance for data-intensive embedded applications.
- Power Supply - Standard 3V to 3.6V operating voltage aligns with common embedded system power rails, simplifying power management design.
- Extended Temperature Range - -40°C to 85°C operating temperature supports deployment in industrial environments with varying thermal conditions.
- Package Format - 54-TSOP II package (0.400", 10.16mm width) offers a compact surface-mount footprint suitable for space-constrained PCB layouts.
Typical Applications
- Industrial Control Systems - This SDRAM provides program and data memory for PLCs, industrial PCs, and motion controllers where the extended temperature range ensures reliable operation across factory floor environments.
- Telecommunications Equipment - The high-speed parallel interface supports buffering and data processing in legacy networking equipment, routers, and base station controllers requiring proven SDRAM technology.
- Legacy System Maintenance - As a drop-in replacement for aging memory components, this SDRAM extends the service life of existing embedded platforms and prevents costly system redesigns.
- Test and Measurement Instruments - The device's stable operation across temperature ranges and fast access times make it appropriate for data acquisition systems and automated test equipment.
Unique Advantages
- Proven SDRAM Technology: Mature synchronous DRAM architecture delivers predictable timing characteristics and simplified controller design compared to newer memory types.
- Wide Operating Voltage Tolerance: 3V to 3.6V supply range accommodates voltage variations in industrial power systems without requiring precision regulators.
- Industrial Temperature Qualification: -40°C to 85°C operation eliminates the need for additional thermal management in many industrial installations.
- Parallel Interface Compatibility: Direct connection to standard memory controllers and processors simplifies integration into existing designs without protocol conversion.
- Compact Surface-Mount Package: TSOP II footprint reduces board space requirements compared to through-hole memory modules.
Why Choose AS4C8M16S-6TIN?
The AS4C8M16S-6TIN delivers a balance of capacity, speed, and reliability for systems built around parallel SDRAM architectures. Its 166MHz clock support and 5ns access time provide adequate performance for embedded applications while maintaining compatibility with standard memory controller designs. The extended temperature range and industrial-grade voltage tolerance make this component particularly valuable for control systems and equipment deployed in challenging environmental conditions.
This SDRAM is an appropriate choice for design teams maintaining existing platforms, supporting legacy products, or developing new systems where proven parallel memory technology aligns with project requirements. The mature SDRAM specification and TSOP II package format facilitate sourcing and manufacturing continuity.
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