W9751G8NB-25

The W9751G8NB-25 is a 512 Mbit DDR2 SDRAM device in a 60-ball VFBGA package. It implements a 64M × 8 memory organization and a 16M × 4 banks × 8-bit internal architecture to provide parallel DDR2 system memory.

Designed for systems that require parallel DDR2 memory operation, the device supports a 400 MHz clock rate, standard DDR2 command and configuration functions, and operational features described in the device datasheet such as mode registers, on-die termination and power-down/self-refresh modes.

Key Features

• Memory Type & Architecture DDR2 SDRAM with 512 Mbit capacity implemented as 64M × 8 and organized as 16M × 4 banks × 8-bit for parallel memory interfaces.
• Performance Supports a clock frequency up to 400 MHz with an access time of 57.5 ns and a write cycle time (word/page) of 15 ns.
• Voltage & Power Operates from a 1.7 V to 1.9 V supply; includes standard DDR2 power modes such as power-down and self-refresh described in the datasheet.
• Command and Control Full DDR2 command set and mode register functions including Mode Register Set (MRS), Extended Mode Registers (EMRS), DLL enable/disable, and on-die termination (ODT) controls as documented in the datasheet.
• Timing and Reliability Features Supports burst read/write operations, auto-precharge, refresh sequences and ODT timing controls per the provided electrical and timing specifications.
• Package 60-ball VFBGA package (8 × 9.5 mm footprint) for compact board-level mounting.
• Operating Temperature Specified operating temperature range of 0°C to 85°C (TC).

Unique Advantages

• Standard DDR2 Interface: Provides a parallel DDR2 SDRAM interface with defined Mode Register and EMR controls, easing integration into DDR2-compatible designs.
• Balanced Performance and Capacity: 512 Mbit density with 400 MHz clock support delivers a clear capacity/performance point for systems requiring mid-density DDR2 memory.
• Power Mode Support: Built-in power-down and self-refresh features reduce power during idle periods in systems that implement these modes.
• On-Die Termination and DLL Control: ODT and DLL configuration options in EMR allow designers to tune signal integrity and timing behavior per board-level requirements.
• Compact BGA Packaging: The 60-VFBGA (8 × 9.5 mm) package supports space-constrained board layouts while maintaining standard DDR2 connectivity.

Why Choose W9751G8NB-25?

The W9751G8NB-25 offers a defined DDR2 SDRAM solution with 512 Mbit density, conventional parallel DDR2 controls, and timing capabilities documented in the datasheet. Its combination of 64M × 8 organization, 16M × 4-bank architecture, 400 MHz clock support and ODT/DLL configuration options makes it suitable for designs that require standard DDR2 memory behavior in a compact VFBGA footprint.

Designed for engineers and procurement teams seeking an established DDR2 memory building block, the W9751G8NB-25 provides verifiable electrical, timing and operational details (including mode registers, refresh, power-down and ODT timing) to support system integration and validation.

Request a quote or submit an inquiry to obtain pricing, availability and additional ordering information for the W9751G8NB-25.