AS4C8M16D1-5TCNTR

The AS4C8M16D1-5TCNTR is a 128-megabit DDR SDRAM memory integrated circuit from Alliance Memory, Inc. Built on proven SDRAM - DDR technology, this volatile memory device is organized as 8M x 16 and operates at a 200MHz clock frequency. It serves applications requiring fast, parallel-interface memory in a compact 66-TSOP II package.

Designed for commercial temperature operation from 0°C to 70°C, this DRAM provides reliable temporary data storage for embedded systems, industrial controllers, networking equipment, and other digital electronics requiring cost-effective, high-speed volatile memory.

Key Features

• Memory Architecture - 128-megabit capacity organized as 8M x 16, providing flexible data width configuration for various system designs.
• DDR SDRAM Technology - Double data rate synchronous DRAM transfers data on both rising and falling clock edges, delivering efficient bandwidth at 200MHz operation.
• Fast Access Time - 0.7ns (700 picosecond) access time enables rapid read operations for time-critical applications.
• Low Voltage Operation - 2.3V to 2.7V supply voltage range reduces power consumption compared to traditional 3.3V memory devices.
• Parallel Interface - Direct parallel memory interface simplifies integration with processors, FPGAs, and controllers without requiring serial conversion circuitry.
• Compact Package - 66-pin TSOP II (0.400", 10.16mm width) surface-mount package optimizes board space in density-constrained designs.
• Commercial Temperature Range - 0°C to 70°C (TA) operating range suits typical indoor and temperature-controlled environments.

Typical Applications

• Embedded Computing Systems - This DDR SDRAM provides working memory for embedded processors in set-top boxes, point-of-sale terminals, and kiosks where its parallel interface and commercial temperature range align with typical deployment environments.
• Networking Equipment - Routers, switches, and access points utilize this memory for packet buffering and routing tables, benefiting from its 200MHz clock speed to handle network traffic efficiently.
• Industrial Control Systems - PLCs, HMIs, and process controllers leverage this DRAM for program execution and data buffering in factory automation environments within the 0°C to 70°C operating range.
• Data Acquisition Devices - Test and measurement instruments use this memory for temporary storage of captured waveforms and sensor data, taking advantage of its fast access time for real-time processing.
• Printer and Imaging Systems - Digital printers and copiers employ this DRAM for image buffering and raster processing, where the 128-megabit capacity handles moderate-resolution graphics efficiently.

Unique Advantages

• Legacy System Support: Provides a direct replacement option for existing DDR SDRAM designs, maintaining compatibility with established board layouts and BOM structures.
• Simplified Sourcing: Standard JEDEC-compliant DDR SDRAM specifications enable cross-referencing and second-sourcing opportunities to reduce supply chain risk.
• Reduced Power Budget: 2.3V to 2.7V operation lowers system power consumption compared to older 3.3V DRAM technologies, extending battery life in portable applications or reducing cooling requirements.
• Proven Technology Foundation: DDR SDRAM's widespread adoption and mature manufacturing processes provide predictable performance characteristics and availability.
• Cost-Effective Memory Solution: Balances capacity, speed, and price for applications where newer DDR2/DDR3 technologies would be over-specified and more expensive.
• Direct Processor Integration: Parallel interface eliminates the need for serial-to-parallel conversion logic, simplifying board design and reducing component count.

Why Choose AS4C8M16D1-5TCNTR?

The AS4C8M16D1-5TCNTR offers a practical memory solution for designs requiring DDR SDRAM in commercial temperature environments. Its 128-megabit capacity and 8M x 16 organization fit applications where moderate memory density meets processing needs without the complexity or cost of higher-density alternatives. The 66-TSOP II package provides a proven footprint for established designs and manufacturing processes.

This device is particularly well-suited for maintenance, repair, and operations (MRO) scenarios supporting legacy systems, as well as cost-sensitive new designs in industrial control, networking, and embedded computing markets. Please note this component has an obsolete lifecycle status—confirm long-term availability with your Alliance Memory representative before committing to new designs.

Get a Quote

Contact our sales team to request pricing, availability information, and technical support for the AS4C8M16D1-5TCNTR. Our specialists can help you evaluate whether this DDR SDRAM meets your application requirements and assist with system integration questions.