AS4C4M16D1A-5TCNTR

IC DRAM 64MBIT PAR 66TSOP II
Part Description

IC DRAM 64MBIT PAR 66TSOP II

Quantity 466 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 Size64 MbitAccess Time700 psGradeCommercial
Clock Frequency200 MHzVoltage2.3V ~ 2.7VMemory TypeVolatile
Operating Temperature0°C ~ 70°C (TA)Write Cycle Time Word PageN/APackaging66-TSSOP (0.400", 10.16mm Width)
Mounting MethodVolatileMemory InterfaceParallelMemory Organization4M x 16
Moisture Sensitivity Level3 (168 Hours)RoHS ComplianceROHS3 CompliantREACH ComplianceREACH Unaffected
QualificationN/AECCN3A991B2AHTS Code8542.32.0002

Overview of AS4C4M16D1A-5TCNTR - 64Mb DDR SDRAM

The AS4C4M16D1A-5TCNTR is a 64-megabit DDR SDRAM organized as 4M x 16, delivering high-speed synchronous memory performance at a 200MHz clock frequency. Built on proven DDR1 SDRAM technology, this memory device provides reliable data storage with 7ns access time for applications requiring fast data throughput. Designed for commercial temperature operation (0°C to 70°C), this parallel interface DRAM offers a cost-effective solution for embedded systems and consumer electronics.

Key Features

  • Memory Configuration - 64Mb capacity organized as 4M x 16 provides flexible addressing for a wide range of system architectures.
  • DDR SDRAM Technology - Double Data Rate architecture transfers data on both rising and falling clock edges, doubling effective bandwidth compared to single data rate memory.
  • High-Speed Operation - 200MHz clock frequency with 7ns access time supports rapid read and write operations for performance-critical applications.
  • Low-Voltage Operation - 2.3V to 2.7V supply voltage reduces power consumption in battery-operated and thermally-constrained designs.
  • Parallel Interface - Standard parallel bus architecture simplifies integration with processors and controllers using conventional memory interfaces.
  • 66-Pin TSOP II Package - Compact 10.16mm wide surface-mount package optimizes board space utilization.

Typical Applications

  • Embedded Computing Systems - This DDR SDRAM serves as main memory in embedded processors and microcontrollers where the 64Mb capacity and fast access time support application execution and data buffering needs.
  • Consumer Electronics - The memory provides data storage for set-top boxes, digital cameras, and portable media players where the commercial temperature range and low voltage operation align with consumer product requirements.
  • Networking Equipment - This SDRAM enables packet buffering and routing table storage in routers and switches where the 200MHz clock frequency supports network throughput demands.
  • Digital Signal Processing - The parallel interface and fast access time make this memory suitable for DSP systems that require temporary storage of signal data during processing operations.
  • Printer and Imaging Systems - This DRAM provides frame buffer memory for printers and scanners where the 64Mb capacity accommodates high-resolution image data.

Unique Advantages

  • Proven DDR1 Technology: Mature SDRAM architecture ensures reliable operation with extensive design resources and ecosystem support available.
  • Cost-Effective Memory Solution: Standard parallel interface and conventional packaging reduce system BOM costs compared to specialized memory technologies.
  • Simplified System Design: Compatible with widely-used memory controller architectures, reducing development time and integration complexity.
  • Flexible Capacity Point: 64Mb density provides adequate storage for many embedded applications without over-provisioning memory resources.
  • Extended Product Availability: Active lifecycle status indicates ongoing manufacturing support for long-term design commitments.

Why Choose AS4C4M16D1A-5TCNTR?

The AS4C4M16D1A-5TCNTR from Alliance Memory offers a balance of performance, capacity, and commercial-grade reliability for embedded systems requiring DDR SDRAM. The 4M x 16 organization and 200MHz operation suit designs where conventional parallel memory interfaces are preferred over serial alternatives. Engineers selecting this memory benefit from the established DDR1 ecosystem, straightforward integration with standard memory controllers, and the availability of comprehensive datasheets and application notes.

This SDRAM is well-suited for cost-sensitive embedded applications operating in standard commercial environments, particularly where proven memory technology and long-term availability are design priorities. The 66-pin TSOP II package provides a compact footprint for space-constrained designs while maintaining compatibility with automated assembly processes.

Get Started

Contact our sales team to request detailed specifications, pricing, and availability for the AS4C4M16D1A-5TCNTR. Our technical support staff can assist with integration guidance and answer questions about incorporating this DDR SDRAM into your design.

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