The KM64V4002BJ-12 is a high-speed 4Mbit Static RAM (SRAM) manufactured by Samsung. This SRAM chip is designed for applications demanding fast access times and low power consumption. It is fabricated using advanced CMOS technology to achieve high performance and reliable data storage. The device is organized as 256K x 16 bits and operates from a single 3.3V power supply.

Applications:

• Cache memory in microprocessor systems
• High-speed data acquisition systems
• Networking equipment (routers, switches)
• Embedded systems requiring fast memory access
• Industrial control systems

Features:

• Fast access time: -12 indicates a 12ns access time, enabling very fast read and write operations.
• Low power consumption: CMOS technology ensures minimal power dissipation, particularly in standby mode.
• Single 3.3V power supply: Reduces power consumption and simplifies power supply design compared to 5V counterparts.
• 256K x 16 bit organization: Provides a wide 16-bit data interface, suitable for applications requiring high data throughput.
• TTL compatible inputs and outputs: Facilitates easy interfacing with other digital components.
• Three-state outputs: Allows for easy memory expansion and bus sharing.

Benefits:

• Improved system performance: The fast access time of the KM64V4002BJ-12 significantly enhances the speed and responsiveness of the system.
• Reduced power consumption: The low power consumption of the CMOS technology and 3.3V operation translates to lower operating costs and extended battery life in portable devices.
• Simplified system design: The single 3.3V power supply and TTL compatible inputs/outputs streamline the system design process.
• High reliability: Samsung's stringent quality control ensures reliable operation in demanding environments.
• Increased data throughput: The 16-bit data interface enables higher data transfer rates compared to byte-wide SRAMs.

Additional Details:

The KM64V4002BJ-12 is typically available in a 44-pin SOJ or TSOP package. It operates over a standard commercial temperature range of 0°C to 70°C. The chip includes features such as output enable (OE) and chip enable (CE) for flexible memory control. Its combination of speed, low power, and wide data bus makes it well-suited for high-performance embedded applications.