The FM25C160U is a 16-Kbit Serial CMOS EEPROM (Electrically Erasable Programmable Read-Only Memory) from Fairchild/ON Semiconductor. It is organized as 2048 words of 8 bits each. The device is designed for applications requiring non-volatile data storage, particularly in low-power systems. It utilizes a simple Serial Peripheral Interface (SPI) for communication, allowing for easy integration with microcontrollers and other digital systems.

Applications

• Set-Top Boxes
• Hard Disk Drives
• Personal Computers
• Instrumentation
• Smart Cards
• Portable Devices
• Consumer Electronics

Features

• Memory Size: 16 Kbit (2048 x 8)
• Interface: SPI (Serial Peripheral Interface)
• Operating Voltage: 4.5V to 5.5V
• Operating Temperature: -40°C to +85°C
• Data Retention: Greater than 100 years
• Write Endurance: 1,000,000 Write Cycles
• Clock Frequency: Up to 10 MHz
• Self-Timed Write Cycle: Includes auto-erase
• Low Power Consumption: Low standby and active currents
• Software Write Protection: Protects against accidental writes

Benefits

• Easy Integration: The SPI interface simplifies integration with microcontrollers and other digital systems.
• Non-Volatile Storage: Data is retained even when power is removed, ensuring data integrity.
• High Endurance: Withstands a large number of write cycles, ensuring long-term reliability.
• Low Power Consumption: Ideal for battery-powered and energy-efficient applications.
• Wide Operating Voltage Range: Suitable for a variety of applications.
• Small Footprint: Available in small packages, saving board space.
• Software Write Protection: Prevents accidental data corruption.

Additional Details

The FM25C160U uses a standard 4-wire SPI interface: Serial Clock (SCK), Master In Slave Out (MISO), Master Out Slave In (MOSI), and Chip Select (/CS). The device supports standard SPI modes, allowing for flexible communication with various microcontrollers. It features a self-timed write cycle, simplifying the write operation and ensuring data integrity. The EEPROM is commonly used for storing configuration data, user preferences, and other non-volatile data in a wide range of applications. The software write protection feature provides an additional layer of security against accidental data changes.