The W9864G6GB-7 is a 64M x 4 Banks x 16 Bits DDR2 SDRAM (Double Data Rate Two Synchronous Dynamic Random-Access Memory) manufactured by Winbond Electronics. It is a high-speed, low-power memory solution for applications requiring considerable memory capacity and fast data transfer.

Applications

• Embedded Systems
• Networking Devices
• Graphics Cards
• Set-Top Boxes
• Industrial Control Systems

Features

• 64M x 4 Banks x 16 Bits organization
• Double Data Rate architecture (two data transfers per clock cycle)
• Clock frequency up to 133 MHz
• Data rate up to 266 Mbps/pin
• Four internal banks for concurrent operation
• Programmable burst length: 2, 4, 8
• Programmable burst sequence: Sequential or Interleave
• On-Die Termination (ODT) for improved signal integrity
• Differential clock inputs (CK and /CK)
• Write Latency = Read Latency - 1
• Posted CAS
• Self Refresh Mode for low power consumption
• Lead-free package

Benefits

• High memory bandwidth for improved system performance
• Low power consumption for energy efficiency
• Enhanced signal integrity due to On-Die Termination (ODT)
• Flexible burst length options for optimized data transfer
• Easy integration into DDR2 compatible systems

Additional Details

The W9864G6GB-7 utilizes a double data rate architecture, enabling data transfer on both the rising and falling edges of the clock signal, effectively doubling the data rate compared to single data rate (SDR) SDRAM. On-Die Termination (ODT) minimizes signal reflections and improves signal integrity, particularly at higher frequencies. The device supports programmable burst lengths, providing flexibility in memory access. The self-refresh mode allows for reduced power consumption during idle periods. The '-7' designation likely refers to a specific speed grade or timing configuration within the DDR2 SDRAM product family. For detailed specifications, including voltage requirements, timing parameters, and operating temperature ranges, please refer to the official Winbond datasheet.