The W9864G6DB-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. This high-speed, low-power memory chip is designed for a wide range of applications requiring substantial memory and high bandwidth.

Applications

• Graphics cards
• Embedded systems
• Networking equipment
• Digital TVs and 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 133MHz
• Data transfer rates up to 266 Mbps/pin
• Four internal banks for concurrent operation
• Programmable burst length: 2, 4, 8
• Programmable burst sequence: Sequential / Interleave
• Auto precharge and All bank precharge operation
• On-die termination (ODT)
• Differential clock inputs (CK and /CK)
• Write latency = Read latency -1
• Posted CAS
• Self Refresh Mode
• Lead-free package
• RoHS compliant

Benefits

• High bandwidth for improved system performance
• Low power consumption for energy-efficient operation
• Suitable for a variety of applications due to its versatile features
• Reduced signal noise with On-Die Termination (ODT)
• Easy integration with industry-standard DDR2 interfaces

Additional Details

The W9864G6DB-7 DDR2 SDRAM utilizes a double data rate architecture, transferring data on both rising and falling edges of the clock signal. This results in significantly higher data transfer rates compared to traditional SDR SDRAM. It supports programmable burst lengths, allowing optimization for different application needs. The inclusion of On-Die Termination (ODT) helps to reduce signal reflections and improve signal integrity, especially at higher frequencies. The device also features self-refresh mode for low power consumption during idle periods. The '-7' indicates a specific speed grade within the product family. Refer to the official Winbond datasheet for detailed specifications, including voltage requirements, timing parameters, and operating temperature ranges.