The Intersil X4043 is a CMOS non-volatile static RAM featuring a 4K x 8 memory organization. This device offers a combination of fast access times and non-volatile data storage, making it suitable for a range of applications where data retention is critical, even during power loss.

Applications:

• Data logging
• Industrial control systems
• Point-of-sale (POS) terminals
• Medical equipment
• Instrumentation
• Automotive electronics

Features:

• 4K x 8 Non-Volatile Static RAM: Provides a 32Kb non-volatile memory array.
• Automatic Store Operation: Automatically saves data to non-volatile memory upon power down.
• Manual Store/Recall Operations: Allows for user-initiated data storage and retrieval.
• Low Power Consumption: Consumes minimal power during operation and standby.
• Fast Access Time: Offers rapid data access for high-speed applications.
• Unlimited Endurance: Ensures reliable data retention through numerous store/recall cycles.
• TTL Compatibility: Compatible with standard TTL logic levels.
• Single 5V Supply: Operates from a single 5V power supply.

Benefits:

• Data Retention: Ensures data is preserved even during power outages, preventing data loss.
• High Reliability: Offers robust performance and long-term data integrity.
• Simplified System Design: Reduces the need for external battery backup circuits.
• Fast Operation: Enables quick data access and processing.
• Low Power Consumption: Extends battery life in portable applications and reduces overall system power requirements.

Additional Details:

The X4043 integrates a static RAM core with non-volatile storage elements, providing a seamless interface for read and write operations. When power is lost, the device automatically stores the SRAM data into the non-volatile memory. Upon power restoration, the data is automatically recalled into the SRAM. This automatic store/recall functionality simplifies the design and implementation of non-volatile memory solutions.

The device supports both automatic and manual store/recall operations. In automatic mode, the store operation is triggered by a power-down event. In manual mode, the store operation can be initiated by the user through a dedicated control pin. Similarly, the recall operation can be performed automatically upon power-up or manually via a control pin.

The X4043 is available in various package options, including DIP and SOIC, to accommodate different board layouts and application requirements. The device's robust design and high reliability make it a suitable choice for critical applications where data retention is paramount.