AS4C8M16D1A-5TCN

IC DRAM 128MBIT PAR 66TSOP II
Part Description

IC DRAM 128MBIT PAR 66TSOP II

Quantity 450 Available (as of May 5, 2026)
Product CategoryMemory
ManufacturerAlliance Memory, Inc.
Manufacturing StatusActive
Manufacturer Standard Lead Time6 Weeks
Datasheet

Specifications & Environmental

Device Package66-TSOP IIMemory FormatDRAMTechnologySDRAM - DDR
Memory Size128 MbitAccess Time700 psGradeCommercial
Clock Frequency200 MHzVoltage2.3V ~ 2.7VMemory TypeVolatile
Operating Temperature0°C ~ 70°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-5TCN - 128Mbit DDR SDRAM

The AS4C8M16D1A-5TCN from Alliance Memory is a 128Mbit DDR SDRAM featuring an 8M x 16 memory organization. This parallel interface memory device operates at 200MHz clock frequency with a fast 0.7ns access time, making it suitable for applications requiring reliable, high-speed volatile memory.

Packaged in a 66-TSOP II form factor, this SDRAM provides a compact solution for embedded systems and consumer electronics where board space and memory bandwidth are important considerations.

Key Features

  • Memory Configuration - 128Mbit capacity organized as 8M x 16, providing efficient data handling with a 16-bit data bus width.
  • DDR SDRAM Technology - Double Data Rate architecture enables data transfer on both rising and falling clock edges for improved throughput.
  • High-Speed Operation - 200MHz clock frequency with 0.7ns access time and 15ns write cycle time supports demanding memory bandwidth requirements.
  • Low Voltage Operation - Operates from a 2.3V to 2.7V supply voltage, reducing power consumption compared to higher voltage alternatives.
  • Commercial Temperature Range - Specified for operation from 0°C to 70°C, suitable for controlled indoor environments.
  • Compact Package - 66-TSOP II package with 0.400" (10.16mm) width enables space-efficient PCB layouts.

Typical Applications

  • Networking Equipment - This DDR SDRAM provides the memory bandwidth needed for routers and switches to buffer packet data during processing, with the 8M x 16 organization supporting efficient burst transfers.
  • Consumer Electronics - Set-top boxes, digital media players, and gaming devices benefit from the 128Mbit capacity and 200MHz operation for smooth media handling and user interface responsiveness.
  • Embedded Computing - Single-board computers and embedded controllers utilize this memory for program execution and data storage where the parallel interface integrates easily with common processor architectures.
  • Office Automation - Printers, copiers, and multifunction devices use this SDRAM for image buffering and processing tasks where reliable memory operation ensures consistent output quality.

Unique Advantages

  • Proven DDR Technology: Leverages mature DDR SDRAM architecture with established design resources and broad ecosystem support.
  • Balance of Speed and Efficiency: The 200MHz clock with 2.5V nominal supply provides good performance while maintaining reasonable power consumption.
  • Standard Parallel Interface: Compatible with common memory controllers, simplifying integration and reducing development time.
  • Industry-Standard Package: The 66-TSOP II footprint is widely supported by PCB design tools and manufacturing processes.
  • Active Lifecycle Status: Currently in active production, providing supply continuity for ongoing and new designs.

Why Choose AS4C8M16D1A-5TCN?

The AS4C8M16D1A-5TCN is well-suited for designs requiring a reliable 128Mbit DDR SDRAM with straightforward integration. Its combination of 200MHz operation, 0.7ns access time, and 8M x 16 organization addresses the needs of embedded systems, networking equipment, and consumer electronics applications.

Alliance Memory's active production status for this device supports both new designs and long-term manufacturing requirements, making it a dependable choice for products with extended lifecycles.

Contact Us

Request a quote or contact our sales team to discuss your memory requirements and volume pricing for the AS4C8M16D1A-5TCN.

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