IS46DR16160B-3DBLA2-TR

IC DRAM 256MBIT PAR 84TWBGA
Part Description

IC DRAM 256MBIT PAR 84TWBGA

Quantity 1,074 Available (as of May 5, 2026)
Product CategoryMemory
ManufacturerIntegrated Silicon Solution Inc
Manufacturing StatusActive
Manufacturer Standard Lead Time12 Weeks
Datasheet

Specifications & Environmental

Device Package84-TWBGA (8x12.5)Memory FormatDRAMTechnologySDRAM - DDR2
Memory Size256 MbitAccess Time450 psGradeAutomotive
Clock Frequency333 MHzVoltage1.7V ~ 1.9VMemory TypeVolatile
Operating Temperature-40°C ~ 105°C (TA)Write Cycle Time Word Page15 nsPackaging84-TFBGA
Mounting MethodVolatileMemory InterfaceParallelMemory Organization16M x 16
Moisture Sensitivity Level3 (168 Hours)RoHS ComplianceROHS CompliantREACH ComplianceREACH Unaffected
QualificationN/AECCNEAR99HTS Code8542.32.0024

Overview of IS46DR16160B-3DBLA2-TR - 256Mbit DDR2 SDRAM

The IS46DR16160B-3DBLA2-TR is a 256-megabit DDR2 SDRAM organized as 16 million words by 16 bits. Designed for applications requiring high-speed data access and reliable memory performance, this volatile memory device operates at clock frequencies up to 333MHz with a 4.5ns access time. The extended temperature range and compact 84-TWBGA package make it suitable for industrial and embedded systems where space and environmental tolerance are critical.

Key Features

  • Memory Configuration - 256Mbit capacity in a 16M x 16 organization provides flexible data width for 16-bit parallel interface designs.
  • DDR2 SDRAM Technology - Delivers higher bandwidth than conventional SDRAM with clock frequencies up to 333MHz and efficient power consumption.
  • Fast Access Time - 4.5ns access time enables rapid data retrieval for time-sensitive applications requiring quick read operations.
  • Extended Temperature Range - Operates reliably from -40°C to 105°C, supporting industrial and automotive environments with extreme thermal conditions.
  • Compact Package - 84-pin TWBGA (8mm x 12.5mm) footprint minimizes PCB space requirements while maintaining robust electrical performance.
  • Parallel Interface - Direct memory bus connection simplifies integration with microprocessors, FPGAs, and controllers using standard parallel protocols.

Typical Applications

  • Industrial Control Systems - This DDR2 SDRAM provides working memory for PLCs, motion controllers, and HMI systems where extended temperature tolerance ensures reliable operation in factory floor environments.
  • Embedded Computing Platforms - Serves as main system memory for single-board computers and embedded modules in transportation, medical, and automation equipment requiring industrial-grade components.
  • Networking Equipment - Supports packet buffering and data routing in switches, routers, and gateway devices where fast access times improve throughput and reduce latency.
  • Test and Measurement Instruments - Enables high-speed data acquisition and waveform storage in oscilloscopes, analyzers, and monitoring systems requiring rapid memory access for real-time analysis.
  • Data Logging Systems - Provides temporary storage for sensor data collection in environmental monitors, industrial IoT devices, and remote telemetry units operating in harsh temperature conditions.

Unique Advantages

  • Industrial Temperature Tolerance: The -40°C to 105°C operating range eliminates the need for cooling systems or thermal management in many industrial applications, reducing system complexity and cost.
  • Proven DDR2 Ecosystem: Leverages widely supported DDR2 controller IP and mature design practices, accelerating development cycles and reducing integration risk compared to newer memory technologies.
  • Space-Efficient Design: The compact TWBGA package reduces PCB footprint by up to 40% compared to TSOP packages, enabling smaller product designs and higher component density.
  • Reliable Parallel Interface: Direct memory bus connection provides deterministic latency and simpler signal integrity analysis compared to serial memory interfaces, improving design predictability.
  • Active Lifecycle Status: Current production availability ensures long-term supply for multi-year projects and reduces obsolescence risk for equipment with extended service lifecycles.
  • Standard Voltage Operation: 1.7V to 1.9V supply voltage aligns with common industrial power rails, simplifying power distribution and reducing the need for additional voltage regulators.

Why Choose IS46DR16160B-3DBLA2-TR?

This DDR2 SDRAM is engineered for embedded and industrial designs where environmental resilience, proven technology, and reliable supply are paramount. The extended temperature range addresses the demanding thermal conditions found in factory automation, outdoor equipment, and transportation systems without requiring expensive thermal management solutions. The 256Mbit density strikes an optimal balance for applications requiring moderate memory capacity without the cost premium of higher-density devices.

For engineers developing industrial controllers, embedded computing platforms, or networking equipment with multi-year production horizons, the IS46DR16160B-3DBLA2-TR offers a stable, well-supported memory solution backed by ISSI's proven manufacturing capabilities and active product lifecycle commitment.

Request a Quote

Contact our sales team to discuss volume pricing, lead times, and technical support for integrating the IS46DR16160B-3DBLA2-TR into your next design. Our applications engineers are available to assist with memory controller configuration, signal integrity analysis, and board layout recommendations.

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