W9751G6NB-25 Memory Chips

The Winbond W9751G6NB-25 is a high-performance 512 Mbit (64 MB) DDR2 SDRAM memory device organized as 8M × 4 banks × 16 bits (32M × 16 total), operating at up to 400 MHz clock frequency (DDR2-800 / PC2-6400 speed grade). Housed in a compact 84-ball VFBGA package, this single-die DDR2 chip provides reliable bandwidth and low-power operation for cost-sensitive embedded and consumer applications.

Key Specifications:

• Brand: Winbond
• Part Number: W9751G6NB-25
• Capacity: 512 Mbit (32M words × 16 bits)
• Type: DDR2 SDRAM (volatile, parallel interface)
• Clock Frequency: 400 MHz (tCK = 2.5 ns)
• Data Rate: 800 Mbps
• Organization: 8M × 4 banks × 16 bits
• Supply Voltage: 1.7 V to 1.9 V (1.8 V nominal)
• Active Current: 90 mA (typ.)
• Refresh Current: 6 mA (typ.)
• Access Time: 400 ps (typ.)
• Write Cycle Time (tWR): 15 ns
• Package: 84-ball VFBGA (8 × 12.5 mm)
• Packaging: Tray
• Operating Temperature Range: 0 °C to +85 °C (Commercial)

Typical Applications:

• Consumer electronics (set-top boxes, digital TVs, media players)
• Networking equipment (routers, switches)
• Industrial control and embedded systems
• Printers, scanners, and peripheral devices
• Legacy DDR2-based designs requiring moderate density and long-term availability

The W9751G6NB-25 delivers excellent compatibility with standard DDR2 controllers, low power consumption, and proven reliability in a small-footprint VFBGA package — a cost-effective memory solution for transitional and legacy DDR2 platforms in consumer, networking, and embedded applications.