The W986432DH-7 is a high-speed synchronous dynamic random-access memory (SDRAM) from Winbond Electronics. This SDRAM is designed to provide a large memory capacity with fast data access, making it suitable for various applications requiring high-performance memory.

Applications:

• Embedded systems requiring external memory
• Graphics cards
• Networking devices
• Consumer electronics (e.g., set-top boxes, digital TVs)
• Industrial control systems

Features:

• 64Mbit (4Meg x 4 banks x 16) SDRAM
• Operating frequencies up to 143 MHz
• Single 3.3V power supply
• LVTTL compatible inputs and outputs
• 4 banks
• Programmable burst length (1, 2, 4, 8, full page)
• Programmable burst type (Sequential & Interleave)
• Auto precharge and controlled precharge
• 8K refresh cycles / 64ms
• Available in various package options

Benefits:

• High bandwidth: Enables fast data transfer rates, improving system performance.
• Large memory capacity: Provides ample space for storing data and program code.
• Low power consumption: Suitable for battery-powered devices and energy-efficient systems.
• Cost-effective: Offers a balance of performance and price.
• Easy integration: Compatible with standard memory controllers and interfaces.

Additional Details:

The W986432DH-7 SDRAM uses a synchronous interface, meaning that data transfers are synchronized with a clock signal. This allows for higher data transfer rates compared to asynchronous memory. The device supports various operating modes, including burst mode, which allows for transferring multiple data words in a single operation. The SDRAM also features auto precharge and controlled precharge functions to simplify memory management and improve performance. The refresh rate of 8K cycles/64ms ensures data integrity. The device is available in different package options to meet various space and mounting requirements. This SDRAM is specifically designed for applications where higher performance, higher density, and lower power are required.

The primary difference between this model and the W986432DH-6 is its maximum operating frequency which is 143MHz for this model, compared to 166MHz for the DH-6.

It operates at 3.3V and has LVTTL compatible inputs and outputs, making it easy to interface with a wide range of microprocessors and microcontrollers.