The D43256C-10L is a 262,144-bit (256K-bit) static RAM (SRAM) manufactured by NEC. It is organized as 32,768 words by 8 bits. This SRAM features low power consumption and fast access times. It is commonly utilized in applications requiring battery backup or low-power operation without the need for constant refreshing.

Applications:

• Battery-Backed Memory: Used in systems requiring data retention during power outages, such as point-of-sale terminals and industrial control systems.
• Embedded Systems: Employed in low-power embedded applications like handheld devices and portable instruments.
• Cache Memory: Utilized in applications needing fast data access with minimal power consumption.
• Medical Devices: Integrated into medical instruments and monitoring systems for data storage.
• Telecommunications Equipment: Used in communication devices for storing configuration settings and temporary data.

Features:

• Low Power Consumption: Minimizes energy requirements, making it suitable for battery-powered applications.
• Fast Access Time: Offers quick read and write operations, improving system performance. Specifically, the '-10L' designates a faster access time variant.
• Static Operation: Does not require refresh cycles, simplifying memory control and reducing system overhead.
• TTL Compatibility: Compatible with standard TTL (Transistor-Transistor Logic) circuits, facilitating easy integration.
• Wide Operating Voltage Range: Operates over a wide voltage range, providing flexibility in power supply design.

Benefits:

• Extended Battery Life: Low power consumption extends battery life in portable devices, maximizing operational time.
• High-Speed Performance: Fast access times enhance system performance by reducing memory access latency.
• Simplified Design: Static operation eliminates the need for complex refresh circuitry, simplifying system design.
• Easy Integration: TTL compatibility ensures seamless integration into a variety of digital systems.
• Reliable Data Retention: Provides reliable data retention in battery-backed applications, preventing data loss.

Additional Details:

The D43256C-10L typically comes in a 28-pin DIP (Dual In-line Package) or a surface-mount package. Key electrical specifications include a standby current in the microampere range, an operating temperature range from 0°C to 70°C, and a supply voltage of 5V. The -10L designation indicates a typical access time of 100ns. This SRAM is designed using CMOS (Complementary Metal-Oxide-Semiconductor) technology for low power consumption.