The EM51L256A15J is a high-speed CMOS Synchronous Dynamic RAM (SDRAM) from Etron Technology. It's designed to operate at low voltage, making it suitable for various applications where power consumption is a critical factor. This SDRAM offers a density of 256Mb, organized as 4 banks x 512K words x 32 bits. This architecture allows for efficient memory access and data transfer.

Applications

• Networking equipment (routers, switches)
• Industrial control systems
• Consumer electronics (set-top boxes, digital TVs)
• Embedded systems
• Telecommunications equipment

Features

• 256Mb (4 Banks x 512K x 32) SDRAM
• Synchronous operation: All signals referenced to a positive clock edge
• Low voltage operation: Typically 3.3V
• Data rate: Up to 133 MHz
• Burst Length: 1, 2, 4, 8, and Full Page
• Auto precharge and controlled precharge
• Self Refresh Mode
• LVTTL compatible inputs and outputs
• Available in various package options (e.g., TSOP, FBGA)

Benefits

• High bandwidth for fast data transfer
• Low power consumption, ideal for battery-powered devices
• Large memory capacity for demanding applications
• Easy integration into existing systems
• Reliable performance in a wide range of operating conditions

Additional Details

The EM51L256A15J SDRAM supports various operating modes, including burst read and write operations, which significantly improve data throughput. The self-refresh mode minimizes power consumption when the device is not actively being accessed. The device is typically packaged in a TSOP or FBGA package for ease of assembly onto printed circuit boards. It's designed to meet industry-standard JEDEC specifications for SDRAM devices. The specific speed grade (e.g., 133MHz) affects the maximum clock frequency at which the device can reliably operate. Ensure compatibility with the system's timing requirements. The operating temperature range is also an important consideration for selecting the correct part for a specific application environment.