AS4C8M16D1A-5TIN

IC DRAM 128MBIT PAR 66TSOP II
Part Description

IC DRAM 128MBIT PAR 66TSOP II

Quantity 234 Available (as of May 5, 2026)
Product CategoryMemory
ManufacturerAlliance Memory, Inc.
Manufacturing StatusActive
Manufacturer Standard Lead Time8 Weeks
Datasheet

Specifications & Environmental

Device Package66-TSOP IIMemory FormatDRAMTechnologySDRAM - DDR
Memory Size128 MbitAccess Time700 psGradeIndustrial
Clock Frequency200 MHzVoltage2.3V ~ 2.7VMemory TypeVolatile
Operating Temperature-40°C ~ 85°C (TA)Write Cycle Time Word Page15 nsPackaging66-TSSOP (0.400", 10.16mm Width)
Mounting MethodVolatileMemory InterfaceParallelMemory Organization8M x 16
Moisture Sensitivity Level3 (168 Hours)RoHS ComplianceROHS3 CompliantREACH ComplianceREACH Unaffected
QualificationN/AECCNEAR99HTS Code8542.32.0002

Overview of AS4C8M16D1A-5TIN - 128Mbit DDR SDRAM in 66-TSOP II Package

The AS4C8M16D1A-5TIN is a high-performance 128Mbit DDR SDRAM from Alliance Memory organized as 8M x 16 bits. This parallel interface memory device operates at clock frequencies up to 200MHz with a fast 0.7ns access time, making it well-suited for embedded systems requiring reliable volatile memory with industrial temperature support.

With an operating voltage range of 2.3V to 2.7V and an extended temperature range of -40°C to 85°C, this SDRAM delivers consistent performance across demanding environmental conditions while maintaining low power consumption for battery-powered and thermally constrained applications.

Key Features

  • Memory Configuration - 128Mbit capacity organized as 8M x 16, providing a wide 16-bit data bus for efficient data throughput in embedded applications.
  • DDR SDRAM Technology - Double Data Rate architecture enables data transfer on both rising and falling clock edges, effectively doubling bandwidth compared to single data rate alternatives.
  • High-Speed Operation - 200MHz clock frequency with 0.7ns access time and 15ns write cycle time supports demanding real-time processing requirements.
  • Low Voltage Operation - 2.3V to 2.7V supply voltage range reduces power consumption and enables compatibility with modern low-power system designs.
  • Extended Temperature Range - Full industrial temperature operation from -40°C to 85°C ensures reliable performance in harsh environmental conditions.
  • Industry-Standard Package - 66-TSOP II package with 0.400" (10.16mm) width provides proven surface-mount reliability and compatibility with standard PCB footprints.

Typical Applications

  • Industrial Automation - This DDR SDRAM provides reliable program and data storage for PLCs, HMIs, and industrial controllers where the extended -40°C to 85°C temperature range ensures consistent operation in factory floor environments.
  • Embedded Computing - The 8M x 16 organization and 200MHz clock speed support embedded processors requiring high-bandwidth volatile memory for code execution and data buffering.
  • Telecommunications Equipment - Network switches, routers, and communication modules benefit from the fast access time and industrial temperature rating for reliable data buffering in equipment enclosures.
  • Medical Devices - Portable and stationary medical instruments utilize this SDRAM for data acquisition and processing where consistent performance and extended temperature tolerance are essential.
  • Test and Measurement - Data acquisition systems and test equipment leverage the high-speed parallel interface for capturing and storing measurement data in real-time applications.

Unique Advantages

  • Long-Term Availability: Alliance Memory specializes in providing extended lifecycle support for memory products, reducing redesign risk and ensuring supply continuity for long-production-cycle applications.
  • Drop-In Compatibility: Pin-compatible with industry-standard DDR SDRAM devices, simplifying second-source qualification and enabling straightforward design-in or replacement scenarios.
  • Industrial Temperature Standard: Full -40°C to 85°C operating range included as standard, eliminating the need for temperature screening or premium-grade part selection.
  • Optimized Power Efficiency: Low 2.3V to 2.7V operating voltage reduces overall system power consumption and thermal dissipation in space-constrained designs.
  • Proven Package Technology: The 66-TSOP II package offers excellent thermal performance and mechanical reliability for high-volume manufacturing and field deployment.

Why Choose AS4C8M16D1A-5TIN?

The AS4C8M16D1A-5TIN represents a robust memory solution for designers who require proven DDR SDRAM technology with industrial-grade reliability. Its combination of 128Mbit density, 200MHz operation, and extended temperature range makes it particularly well-suited for embedded systems in industrial, telecommunications, and medical applications where long-term availability and consistent performance are paramount.

Alliance Memory's commitment to extended product lifecycles provides design engineers with confidence that this memory will remain available throughout their product's production run, avoiding costly redesigns and requalification efforts.

Contact Us

Request a quote today to discuss volume pricing and availability for the AS4C8M16D1A-5TIN. Our technical sales team is ready to support your design requirements and provide samples for evaluation.

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