M27C256B-90F6

The M27C256B-90F6 is a 256 Kbit (32K x 8) UV EPROM that offers high-speed performance and non-volatile storage capabilities. It features a 90ns access time and a 5V power supply operation, making it suitable for a wide range of applications requiring reliable non-volatile memory.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

• A0-A14: Address Inputs
• DQ0-DQ7: Data Outputs
• CE: Chip Enable
• OE: Output Enable
• WE: Write Enable
• VPP: Programming Voltage
• VCC: Power Supply
• GND: Ground

Circuit Diagram

Include a circuit diagram illustrating the connections and operation of the M27C256B-90F6 UV EPROM for a visual representation.

Key Features

• High-Speed Access: The M27C256B-90F6 offers a fast access time of 90ns, allowing for quick read operations.
• Non-Volatile Storage: This UV EPROM provides non-volatile storage capabilities, retaining data even when power is removed.
• Wide Operating Voltage Range: Operates on a +5V power supply, making it compatible with standard digital systems.
• Multiple Memory Organization Options: Supports byte-wide or word-wide access for flexible memory configurations.
• Reliable Performance: Built-in error detection and correction mechanisms ensure data integrity and reliable operation.

Note: For detailed technical specifications, please refer to the M27C256B-90F6 datasheet.

Application

• Embedded Systems: Ideal for storing program code and configuration data in embedded systems.
• Data Logging: Suitable for applications requiring non-volatile data storage and retrieval, such as data loggers.
• Hardware Calibration: Used in systems where calibration data needs to be stored securely and accessed quickly.

Functionality

The M27C256B-90F6 UV EPROM offers reliable non-volatile storage with high-speed access, making it ideal for applications that require secure and persistent data storage.

Usage Guide

• Programming: Apply the specified programming voltage (VPP) and signals to the control pins for programming data into the EPROM.
• Read Operation: Enable the chip (CE), output enable (OE), and provide the address inputs to read data from the EPROM.
• Write Operation: Enable the chip (CE) and write enable (WE) pins to program data into the EPROM.

Frequently Asked Questions

Q: Is the M27C256B-90F6 compatible with 3.3V systems?
A: The M27C256B-90F6 operates on a +5V power supply and may require level shifting for use in 3.3V systems.

Q: Can the M27C256B-90F6 be erased and reprogrammed multiple times?
A: The M27C256B-90F6 is a UV EPROM that requires ultraviolet light for erasure, making it less suitable for frequent reprogramming compared to EEPROMs.