AS4C4M16S-6TAN
| Part Description |
IC DRAM 64MBIT PAR 54TSOP II |
|---|---|
| Quantity | 63 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 | 64 Mbit | Access Time | 5.4 ns | Grade | Automotive | ||
| Clock Frequency | 166 MHz | Voltage | 3V ~ 3.6V | Memory Type | Volatile | ||
| Operating Temperature | -40°C ~ 105°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 | 4M x 16 | ||
| Moisture Sensitivity Level | 3 (168 Hours) | RoHS Compliance | ROHS Compliant | REACH Compliance | REACH Unaffected | ||
| Qualification | AEC-Q100 | ECCN | 3A991B2A | HTS Code | 8542.32.0002 |
Overview of AS4C4M16S-6TAN - 64Mbit Automotive SDRAM
The AS4C4M16S-6TAN is a 64Mbit synchronous dynamic RAM (SDRAM) from Alliance Memory, designed specifically for automotive applications requiring reliable memory performance in extended temperature environments. With AEC-Q100 qualification and a wide operating temperature range of -40°C to 105°C, this SDRAM delivers dependable data storage for mission-critical automotive systems. Organized as 4M x 16, it operates at clock frequencies up to 166MHz with a 5.4ns access time.
Key Features
- Memory Configuration - 64Mbit capacity organized as 4M x 16, providing flexible data width for various automotive applications.
- Performance - Operates at clock frequencies up to 166MHz with 5.4ns access time and 2ns write cycle time, enabling fast data transactions.
- Automotive Qualification - AEC-Q100 qualified to meet stringent automotive reliability and quality standards.
- Extended Temperature Range - Rated for -40°C to 105°C operation, ensuring functionality across extreme automotive environmental conditions.
- Power Supply - Operates from 3V to 3.6V, compatible with standard automotive power systems.
- Package - Available in 54-pin TSOP II (10.16mm width) package for space-efficient PCB layouts.
Typical Applications
- Automotive Infotainment Systems - Provides working memory for navigation displays, multimedia processing, and user interface systems where the extended temperature range ensures reliable operation in vehicle cabin environments.
- Advanced Driver Assistance Systems (ADAS) - Supports data buffering and processing in camera systems, radar modules, and sensor fusion applications where AEC-Q100 qualification ensures automotive-grade reliability.
- Engine Control Units - Serves as program memory and data storage in ECUs where the wide operating temperature range maintains performance in underhood installations.
- Body Control Modules - Enables complex control logic and parameter storage in body electronics where automotive qualification meets the reliability requirements of safety-critical systems.
- Instrument Clusters - Provides display buffer memory and system RAM for digital dashboards where fast access time supports smooth graphics rendering and real-time data updates.
Unique Advantages
- Automotive-Grade Reliability: AEC-Q100 qualification ensures the component meets automotive industry standards for long-term durability and performance consistency.
- Extended Temperature Tolerance: The -40°C to 105°C operating range eliminates the need for thermal management in many automotive installations, simplifying system design.
- Proven SDRAM Technology: Synchronous operation and industry-standard interface reduce integration complexity and minimize development risk.
- Balanced Performance: The 166MHz clock frequency and 5.4ns access time provide sufficient speed for automotive control and display applications without requiring complex signal integrity measures.
- Standard Package Format: The 54-pin TSOP II package uses established footprints compatible with existing automotive PCB designs.
- Alliance Memory Support: Backed by a manufacturer focused on memory solutions with experience in automotive supply chain requirements.
Why Choose AS4C4M16S-6TAN?
This SDRAM is positioned for automotive designers who need AEC-Q100 qualified memory with proven reliability in extended temperature environments. The 64Mbit capacity and 4M x 16 organization suit mid-range automotive control and display applications where synchronous operation simplifies timing design. While this product carries an Obsolete lifecycle status, it may serve existing designs requiring automotive-qualified memory with this specific configuration.
For long-term automotive projects, consider evaluating current-generation alternatives with active lifecycle status to ensure supply continuity throughout your product's lifetime.
Get a Quote
Contact our sales team to discuss pricing, availability, and technical support for the AS4C4M16S-6TAN. Our specialists can help you evaluate this component for your automotive application and recommend alternatives if needed to support your design's lifecycle requirements.
