AS4C2M32S-6TCNTR

IC DRAM 64MBIT PAR 86TSOP II
Part Description

IC DRAM 64MBIT PAR 86TSOP II

Quantity 727 Available (as of May 5, 2026)
Product CategoryMemory
ManufacturerAlliance Memory, Inc.
Manufacturing StatusObsolete
Manufacturer Standard Lead TimeRFQ
Datasheet

Specifications & Environmental

Device Package86-TSOP IIMemory FormatDRAMTechnologySDRAM
Memory Size64 MbitAccess Time5.5 nsGradeCommercial
Clock Frequency166 MHzVoltage3V ~ 3.6VMemory TypeVolatile
Operating Temperature0°C ~ 70°C (TA)Write Cycle Time Word Page2 nsPackaging86-TFSOP (0.400", 10.16mm Width)
Mounting MethodVolatileMemory InterfaceParallelMemory Organization2M x 32
Moisture Sensitivity Level3 (168 Hours)RoHS ComplianceROHS3 CompliantREACH ComplianceREACH Unaffected
QualificationN/AECCNEAR99HTS Code8542.32.0002

Overview of AS4C2M32S-6TCNTR - 64Mbit Synchronous DRAM in 86-TSOP II Package

The AS4C2M32S-6TCNTR is a 64-megabit synchronous dynamic random access memory (SDRAM) from Alliance Memory, Inc. Organized as 2M x 32, this volatile memory IC delivers reliable parallel interface data storage for embedded systems and computing applications. Operating at up to 166MHz clock frequency with 5.5ns access time, it provides fast synchronous data transfer for applications requiring moderate memory capacity and performance.

Key Features

  • Memory Architecture - 64Mbit SDRAM organized as 2M x 32, providing flexible word-width access for 32-bit data bus systems with synchronous operation for predictable timing.
  • Performance Specifications - 166MHz maximum clock frequency with 5.5ns access time and 2ns write cycle time, delivering responsive data access for time-sensitive applications.
  • Power Supply - Single 3V to 3.6V supply voltage simplifies power design and reduces power management complexity in 3.3V systems.
  • Interface - Parallel interface enables straightforward integration with processors and controllers using standard memory bus protocols.
  • Package - 86-pin TSOP II package (0.400" / 10.16mm width) provides industry-standard footprint for surface mount assembly.
  • Temperature Range - Commercial temperature range of 0°C to 70°C (TA) covers standard operating environments for consumer and office equipment.

Typical Applications

  • Embedded Computing Systems - This SDRAM serves as main memory in embedded processors and microcontrollers where the 2M x 32 organization matches 32-bit architecture requirements and synchronous operation ensures deterministic timing for real-time tasks.
  • Consumer Electronics - The device provides data buffering and temporary storage in set-top boxes, printers, and office equipment where moderate density and commercial temperature range meet application needs.
  • Networking Equipment - Network routers and switches use this memory for packet buffering and routing table storage where parallel interface enables fast data movement and synchronous operation coordinates with system clocks.
  • Legacy System Maintenance - As an obsolete part, it serves replacement and repair applications for existing designs that require exact form-fit-function compatibility with original components.

Unique Advantages

  • Standard 32-bit Organization: The 2M x 32 architecture directly matches common 32-bit processor data buses without requiring multiple devices or complex interleaving.
  • Synchronous Operation: SDRAM technology provides clock-synchronized data transfer that simplifies timing design and improves system predictability compared to asynchronous DRAM.
  • Industry-Standard Package: The 86-TSOP II footprint enables drop-in replacement for compatible devices and leverages existing PCB layouts and assembly processes.
  • Single Supply Voltage: 3.3V operation eliminates the need for multiple voltage rails, reducing power supply complexity and board space requirements.
  • Moderate Density Solution: 64Mbit capacity provides sufficient memory for embedded applications without over-provisioning or unnecessary cost.

Why Choose AS4C2M32S-6TCNTR?

This SDRAM addresses embedded system requirements where 32-bit parallel memory access, synchronous operation, and 64Mbit density align with application specifications. The 166MHz clock support and commercial temperature range suit standard operating environments in consumer electronics, networking equipment, and embedded computing platforms. While this component carries obsolete lifecycle status, it remains relevant for maintenance of existing designs and applications requiring exact replacement compatibility.

For system designers working with legacy platforms or seeking drop-in memory solutions for 32-bit architectures, the AS4C2M32S-6TCNTR delivers proven SDRAM technology in an industry-standard package.

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Contact our sales team for pricing, availability information, and technical support for the AS4C2M32S-6TCNTR. Our specialists can assist with component selection, obsolescence management, and alternative solutions for your memory requirements.

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