IS42S16400J-6TL-TR

IC DRAM 64MBIT PAR 54TSOP II
Part Description

IC DRAM 64MBIT PAR 54TSOP II

Quantity 1,151 Available (as of May 5, 2026)
Product CategoryMemory
ManufacturerIntegrated Silicon Solution Inc
Manufacturing StatusObsolete
Manufacturer Standard Lead TimeRFQ
Datasheet

Specifications & Environmental

Device Package54-TSOP IIMemory FormatDRAMTechnologySDRAM
Memory Size64 MbitAccess Time5.4 nsGradeCommercial
Clock Frequency166 MHzVoltage3V ~ 3.6VMemory TypeVolatile
Operating Temperature0°C ~ 70°C (TA)Write Cycle Time Word PageN/APackaging54-TSOP (0.400", 10.16mm Width)
Mounting MethodVolatileMemory InterfaceParallelMemory Organization4M x 16
Moisture Sensitivity Level3 (168 Hours)RoHS ComplianceROHS CompliantREACH ComplianceREACH Unaffected
QualificationN/AECCNEAR99HTS Code8542.32.0002

Overview of IS42S16400J-6TL-TR - 64Mbit Synchronous DRAM

The IS42S16400J-6TL-TR is a 64-megabit synchronous dynamic random access memory (SDRAM) designed for embedded systems and consumer electronics requiring cost-effective volatile memory. Organized as 4M x 16, this parallel interface SDRAM operates at clock frequencies up to 166MHz with a 5.4ns access time, providing reliable data storage for applications in the commercial temperature range.

Key Features

  • Memory Configuration - 64Mbit capacity organized as 4M x 16, delivering efficient word-aligned data access for microcontroller and processor-based systems.
  • Clock Performance - Supports clock frequencies up to 166MHz with 5.4ns access time, enabling synchronous data transfers that align with system bus timing.
  • Power Supply - Operates from a standard 3V to 3.6V supply voltage, compatible with most 3.3V digital systems and reducing power management complexity.
  • Parallel Interface - Uses a conventional parallel memory interface, simplifying integration with legacy designs and embedded processors without requiring serial protocol overhead.
  • Package - Supplied in a 54-pin TSOP II (0.400", 10.16mm width) footprint, a proven industry-standard surface-mount package that balances pin count with board space efficiency.
  • Operating Temperature - Rated for 0°C to 70°C commercial temperature range, suitable for indoor consumer and computing applications.

Typical Applications

  • Consumer Electronics - This SDRAM serves as main memory or frame buffer in set-top boxes, digital TVs, and home entertainment devices where moderate density and cost efficiency are prioritized over extended temperature tolerance.
  • Networking Equipment - Provides packet buffering and data caching in routers, switches, and network interface cards operating in climate-controlled environments, leveraging the parallel interface for straightforward integration with network processors.
  • Embedded Computing - Acts as working memory in single-board computers, point-of-sale terminals, and kiosks where the 64Mbit density matches application requirements and the commercial temperature rating aligns with indoor deployment.
  • Printer and Imaging - Stores rasterized data and print buffers in laser printers, multifunction devices, and document scanners, where the synchronous interface simplifies timing coordination with imaging ASICs.

Unique Advantages

  • Cost-Effective Memory Solution: The mature SDRAM technology and standard TSOP II packaging reduce per-unit costs, making this component economical for price-sensitive consumer and embedded applications.
  • Proven Compatibility: The parallel SDRAM interface and 3.3V operation align with established embedded processor and microcontroller ecosystems, minimizing integration risk and development time.
  • Moderate Density Match: The 64Mbit capacity addresses applications where larger densities would be excessive, avoiding over-specification and unnecessary cost.
  • Simplified Design Integration: Standard pinout and timing characteristics reduce the need for custom layout or signal integrity analysis compared to higher-speed memory technologies.
  • Industry-Standard Footprint: The 54-TSOP II package is widely supported by assembly equipment and component libraries, streamlining manufacturing and reducing tooling complexity.

Why Choose IS42S16400J-6TL-TR?

The IS42S16400J-6TL-TR is positioned for designs that prioritize cost efficiency and straightforward integration over advanced performance or extended environmental specifications. Its synchronous parallel interface and moderate clock speed make it well-suited for established embedded architectures and consumer systems where proven technology reduces risk. This component is ideal for designs operating indoors within the commercial temperature range and requiring a balance of density, speed, and cost.

Note that this product carries an Obsolete lifecycle status. Designers should verify long-term availability and consider alternative SDRAM solutions from ISSI or other manufacturers for new designs requiring extended production lifetimes.

Request a Quote

For pricing information, volume availability, or technical support for integrating the IS42S16400J-6TL-TR into your design, please contact our sales team. We can assist with component selection, provide lifecycle guidance, and help identify suitable alternatives if long-term availability is a concern for your project.

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