Description

Samsung 4Gb DDR3 SDRAM (K4B4G0446D/K4B4G0846D)

Technical Overview

The Samsung 4Gb DDR3 SDRAM represents a high-performance memory solution designed for advanced computing environments. This D-die memory module offers robust performance with multiple speed grades and configurations to meet diverse system requirements.

Key Technical Features

  • Memory Density: 4Gb (available in 1Gx4 and 512Mx8 configurations)
  • Package: 78-ball FBGA (Fine-Pitch Ball Grid Array)
  • Voltage: 1.5V ± 0.075V power supply
  • Speed Grades: Supports DDR3-800 to DDR3-2133 speeds
  • Burst Length: 8 (with on-the-fly burst chop capability)
  • Banks: 8 banks
  • Programmable Features:
    • Programmable CAS Latency: 5, 6, 7, 8, 9, 10, 11, 12, 13, 14
    • Programmable Additive Latency: 0, CL-2, or CL-1 clock
    • Programmable CAS Write Latency (CWL): 5-10 depending on speed grade

Ideal Users

The Samsung 4Gb DDR3 SDRAM is perfect for:

  • High-Performance Desktop Computers: Users requiring consistent, reliable memory performance
  • Enterprise Server Systems: Demanding environments needing stable, high-speed memory
  • Workstation Professionals: Graphic designers, engineers, and data analysts who need rapid data access
  • Gaming Enthusiasts: Gamers seeking responsive and reliable memory solutions

The module’s flexible speed grades and configurations make it adaptable to various computing needs, from entry-level systems to high-end workstations.

Detailed Technical Specifications

Memory Organization

  • 1Gx4 Configuration:
    • 1Gb (1,073,741,824 bits)
    • x4 I/O width
    • 8 banks
  • 512Mx8 Configuration:
    • 512Mb (536,870,912 bits)
    • x8 I/O width
    • 8 banks

Performance Characteristics

Speed Grades
Speed Grade Clock Cycle Time CAS Latency Max Transfer Rate
DDR3-800 2.5 ns 6 800 Mb/s
DDR3-1066 1.875 ns 7 1066 Mb/s
DDR3-1333 1.5 ns 9 1333 Mb/s
DDR3-1600 1.25 ns 11 1600 Mb/s
DDR3-1866 1.071 ns 13 1866 Mb/s
DDR3-2133 0.938 ns 14 2133 Mb/s

Advanced Features

  • On-Die Termination (ODT)
  • Internal self-calibration
  • Bi-directional differential data strobe
  • 8-bit pre-fetch architecture
  • Asynchronous reset
  • Lead-free & halogen-free (RoHS compliant)

Environmental Specifications

  • Operating Temperature Range: 0°C to 95°C
  • Storage Temperature Range: -55°C to +100°C
  • Refresh Interval:
    • 7.8 µs (0°C to 85°C)
    • 3.9 µs (85°C to 95°C)

Compatibility and Compliance

  • JEDEC standard 1.5V ± 0.075V power supply
  • Backward compatible with lower speed grades
  • Compliant with DDR3 SDRAM industry specifications

Reliability

The Samsung 4Gb DDR3 SDRAM is engineered with rigorous quality control, ensuring:

  • Consistent performance across temperature variations
  • Low power consumption
  • Minimal signal interference
  • Long-term operational stability

Ordering Information

When selecting this memory module, specify:

  • Memory density (1Gx4 or 512Mx8)
  • Speed grade (DDR3-800 to DDR3-2133)
  • Specific model number (K4B4G0446D or K4B4G0846D)

Note: Specifications subject to change without prior notice. Always consult the latest datasheet for the most current information.

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