The Intel LD27128A3 is a high-performance 128K (16K x 8) bit Erasable Programmable Read Only Memory (EPROM). This EPROM is designed for use in embedded systems, microcontrollers, and other applications requiring non-volatile memory storage. It offers fast access times and reliable data retention.

Applications:

• Embedded Systems
• Microcontroller Program Storage
• Industrial Control Systems
• Data Logging Applications
• Firmware Storage

Features:

• High Density: 128K (16K x 8) bit storage capacity.
• Fast Access Time: Typical access time of 250ns.
• Erasable and Reprogrammable: Can be erased using UV light and reprogrammed electrically.
• TTL Compatibility: Compatible with TTL logic levels.
• Tri-State Output: Allows for easy memory expansion and bus sharing.
• Single +5V Power Supply: Requires a single +5V power supply for operation.

Benefits:

• Efficient Program Storage: Provides reliable non-volatile memory for storing program code.
• Easy Firmware Updates: Erasability and reprogrammability allow for easy firmware updates and modifications.
• Improved System Performance: Fast access times contribute to faster system performance.
• Simplified System Design: TTL compatibility and single power supply requirement simplify integration into existing systems.
• Reliable Data Retention: Ensures data is retained even when power is removed.

The LD27128A3 EPROM is packaged in a 28-pin DIP (Dual In-line Package) with a transparent window for UV erasure. The erasure process typically requires exposure to UV light with a wavelength of 253.7 nm for a specified duration (typically 20-30 minutes). Programming is performed electrically, using specific voltage and timing parameters as outlined in the device's datasheet. The EPROM's operating temperature range generally spans from 0°C to 70°C. The device is designed to provide a cost-effective and reliable solution for non-volatile memory storage in a wide variety of electronic applications.