AS4C64M8D1-5TIN

IC DRAM 512MBIT PAR 66TSOP II
Part Description

IC DRAM 512MBIT PAR 66TSOP II

Quantity 59 Available (as of May 5, 2026)
Product CategoryMemory
ManufacturerAlliance Memory, Inc.
Manufacturing StatusActive
Manufacturer Standard Lead Time20 Weeks
Datasheet

Specifications & Environmental

Device Package66-TSOP IIMemory FormatDRAMTechnologySDRAM - DDR
Memory Size512 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 Organization64M x 8
Moisture Sensitivity Level3 (168 Hours)RoHS ComplianceROHS3 CompliantREACH ComplianceREACH Unaffected
QualificationN/AECCNEAR99HTS Code8542.32.0028

Overview of AS4C64M8D1-5TIN - 512Mbit DDR SDRAM in 66-TSOP II Package

The AS4C64M8D1-5TIN is a high-density 512Mbit DDR SDRAM from Alliance Memory, organized as 64M x 8 bits. This parallel-interface memory device operates at 200MHz clock frequency with 0.7ns access time, delivering the bandwidth required for embedded systems and industrial applications.

Featuring a wide operating temperature range of -40°C to 85°C and a 2.3V to 2.7V supply voltage, this SDRAM is designed for reliable operation in demanding environments where temperature extremes and power efficiency are critical considerations.

Key Features

  • Memory Configuration - 512Mbit capacity organized as 64M x 8, providing substantial memory density in a single component for data buffering and system memory applications.
  • High-Speed DDR Interface - 200MHz clock frequency with double data rate transfers enables 400MT/s effective throughput for bandwidth-intensive applications.
  • Fast Access Time - 0.7ns access time and 15ns write cycle time ensure responsive memory operations for latency-sensitive designs.
  • Extended Temperature Range - Full industrial temperature operation from -40°C to 85°C supports deployment in harsh environments without derating.
  • Low Voltage Operation - 2.3V to 2.7V supply range reduces power consumption and simplifies integration with modern low-power processors.
  • Industry-Standard Package - 66-TSOP II package (0.400", 10.16mm width) offers proven reliability and compatibility with standard PCB footprints.

Typical Applications

  • Industrial Automation - This DDR SDRAM provides reliable memory for PLCs, HMI systems, and industrial controllers where the extended temperature range ensures consistent operation across factory floor conditions.
  • Embedded Computing - The 64M x 8 organization and parallel interface integrate directly with embedded processors, providing system memory for single-board computers and embedded platforms.
  • Networking Equipment - High bandwidth and fast access times support packet buffering and routing table storage in switches, routers, and network appliances.
  • Medical Devices - The wide temperature tolerance and reliable operation make this memory suitable for portable diagnostic equipment and patient monitoring systems.
  • Test and Measurement - Fast write cycle times enable high-speed data acquisition and buffering for oscilloscopes, analyzers, and instrumentation systems.

Unique Advantages

  • Long-Term Availability: Alliance Memory specializes in providing extended lifecycle support for memory products, reducing redesign risk and ensuring supply continuity.
  • Drop-In Compatibility: Standard DDR SDRAM interface and common package footprint simplify second-sourcing and board layout reuse from existing designs.
  • Industrial Temperature Standard: Full -40°C to 85°C range is included as standard, eliminating the need for temperature screening or premium-grade parts.
  • Simplified Power Design: Single 2.5V nominal supply with wide tolerance reduces power rail complexity and component count.
  • Proven Package Technology: 66-TSOP II package provides established thermal and mechanical characteristics with wide industry tooling support.

Why Choose AS4C64M8D1-5TIN?

The AS4C64M8D1-5TIN delivers a compelling combination of memory density, performance, and environmental robustness for industrial and embedded applications. With 512Mbit capacity, 200MHz operation, and industrial temperature support as standard features, this DDR SDRAM addresses the requirements of designers who need reliable memory without compromise.

Alliance Memory's commitment to product longevity makes the AS4C64M8D1-5TIN an excellent choice for products with extended production lifecycles, providing confidence in long-term component availability.

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Contact our sales team to discuss your memory requirements, request volume pricing, or obtain samples of the AS4C64M8D1-5TIN for your evaluation.

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