AS4C4M16S-6TCNTR

The AS4C4M16S-6TCNTR from Alliance Memory is a 64-megabit synchronous DRAM organized as 4M x 16 bits. This parallel interface SDRAM operates at 166MHz and provides reliable volatile memory for embedded systems requiring cost-effective data storage. With 5.4ns access time and standard 3.3V operation, this component serves a wide range of commercial applications from consumer electronics to networking equipment.

Key Features

• Memory Architecture - 64Mbit capacity configured as 4M x 16-bit organization, providing flexible word-width access for 16-bit data bus systems.
• Performance - 166MHz clock frequency with 5.4ns access time delivers responsive data throughput for time-sensitive embedded applications.
• Power Supply - Single 3V to 3.6V supply voltage simplifies power distribution and aligns with standard 3.3V logic levels used in most embedded designs.
• Interface - Parallel memory interface enables straightforward integration with processors and controllers featuring traditional SDRAM buses.
• Package - 54-pin TSOP II package with 10.16mm width offers space-efficient surface-mount installation on compact PCB layouts.
• Operating Range - Commercial temperature range of 0°C to 70°C suits typical indoor and climate-controlled environments.

Typical Applications

• Consumer Electronics - This SDRAM provides working memory for set-top boxes, digital cameras, and portable media players where moderate capacity and standard temperature operation meet product requirements at competitive cost.
• Networking Equipment - Serves as buffer memory in routers, switches, and network attached storage devices where the parallel interface integrates readily with network processors and the 166MHz speed supports packet processing workloads.
• Industrial Controls - Supports data storage needs in programmable logic controllers, motor drives, and factory automation systems operating within commercial temperature specifications.
• Point-of-Sale Terminals - Functions as system memory in retail terminals and payment processing equipment where the TSOP II package fits space-constrained designs and the volatile nature requires minimal power management complexity.
• Embedded Computing - Powers memory subsystems in single-board computers, embedded modules, and legacy system upgrades that utilize parallel SDRAM interfaces.

Unique Advantages

• Proven SDRAM Technology: Leverages mature synchronous DRAM architecture with widespread design support, reducing development risk and accelerating time to market.
• Cost-Effective Memory Solution: Delivers 64Mbit capacity at competitive pricing for applications where higher-speed DDR technologies are unnecessary and would add unwarranted cost.
• Standard Footprint Compatibility: 54-TSOP II package matches industry-standard pinouts, enabling drop-in replacement scenarios and reuse of existing PCB layouts.
• Single Voltage Operation: 3.3V supply eliminates need for multiple power rails, simplifying board design and reducing component count in power management circuits.
• Straightforward Integration: Parallel interface works with established SDRAM controller IP and driver software, minimizing firmware development effort compared to newer memory technologies.
• Alliance Memory Support: Backed by a manufacturer focused on memory solutions, providing continuity and technical resources for legacy product support.

Why Choose AS4C4M16S-6TCNTR?

This synchronous DRAM is positioned for embedded designs requiring proven memory technology with straightforward integration. The 4M x 16 organization and parallel interface suit systems built around processors and controllers with native SDRAM support, while the commercial temperature rating addresses typical operating environments. For designs prioritizing established technology, predictable sourcing, and cost efficiency over cutting-edge performance, this component offers practical value.

While this part carries an obsolete lifecycle status, Alliance Memory provides ongoing support for existing designs. Engineers should evaluate current availability and consider long-term procurement strategies for products in active production.

Contact Us for Availability

To check current stock levels, request detailed specifications, or discuss your specific memory requirements for the AS4C4M16S-6TCNTR, please reach out to our sales team. We can provide technical guidance, pricing information, and assistance with obsolescence management strategies for your design.