The M28C16A-20, manufactured by OKI/Metcal, is a 16K (2K x 8) CMOS EEPROM (Electrically Erasable Programmable Read-Only Memory). This non-volatile memory device is designed for applications requiring reliable storage and retrieval of data, with the added benefit of electrical erasability and reprogrammability.

Applications

• Data storage in embedded systems: Used for storing configuration settings, calibration data, and other non-volatile data.
• Firmware storage: Stores the program code for microcontrollers and other embedded processors.
• Lookup tables: Implements lookup tables for fast data retrieval.
• Parameter storage in industrial equipment: Stores operating parameters for machines and control systems.
• Configuration memory in programmable logic devices: Stores the configuration data for PLDs and FPGAs.

Features

• 16K (2K x 8) memory organization: Provides a storage capacity of 16,384 bits organized as 2048 bytes.
• CMOS technology: Offers low power consumption and high noise immunity.
• Electrically erasable and programmable (EEPROM): Allows for easy data updates and modifications.
• Fast access time: The "-20" indicates a typical access time of 200ns, enabling quick data retrieval.
• Single 5V power supply: Simplifies system design and reduces power supply requirements.
• TTL compatible inputs and outputs: Ensures compatibility with standard logic devices.
• Endurance: Capable of withstanding a large number of erase/write cycles.

Benefits

• Non-volatile data storage: Retains data even when power is removed.
• Reprogrammability: Allows for easy updates and modifications to stored data.
• Low power consumption: Suitable for battery-powered and energy-sensitive applications.
• Fast data access: Enables quick retrieval of stored data.
• Easy integration: Compatible with standard logic devices and systems.
• Reliable data storage: Designed for long-term data retention.

Additional Details

The M28C16A-20 requires a programming voltage for writing and erasing data. This voltage is typically higher than the normal operating voltage. The device supports various programming modes, including byte-write and page-write operations. It is important to follow the manufacturer's specifications for programming and operation to ensure proper functionality and prevent damage to the device. The EEPROM is commonly used in applications where data retention and reprogrammability are critical, such as automotive electronics, industrial control systems, and consumer electronics.