AT27C256R-70PU

The AT27C256R-70PU is a high-performance 256K (32K x 8) OTP EPROM IC with a 70ns access time. It offers non-volatile storage capabilities for storing program codes or data in embedded systems and other applications.

Pinout

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

• A16: Address Line 16
• A14: Address Line 14
• A12: Address Line 12
• A7: Address Line 7
• A6: Address Line 6
• A3: Address Line 3
• CE: Chip Enable
• OE: Output Enable
• GND: Ground
• NC: No Connection
• VCC: Power Supply (+5V)
• NC: No Connection
• DQ0-DQ7: Data Output/Input Lines

Circuit Diagram

Include a circuit diagram that showcases the connections and functionality of the AT27C256R-70PU IC.

Key Features

• 256K (32K x 8) EPROM: Provides 256K bits of electrically programmable read-only memory for storing data or program code.
• 70ns Access Time: Offers fast access times for efficient read operations in embedded systems.
• Non-Volatile Storage: Retains data even when power is turned off, ensuring long-term data integrity.
• Wide Operating Voltage Range: Operates on a standard +5V power supply voltage.
• High Reliability: Offers reliable performance in various industrial and embedded applications.

Note: For detailed technical specifications, please refer to the AT27C256R-70PU datasheet.

Application

• Embedded Systems: Ideal for program storage in embedded systems, microcontrollers, and industrial control applications.
• Data Logging: Suitable for data logging and non-volatile storage applications that require reliable memory.
• Firmware Storage: Used for storing firmware, boot code, and configuration data in electronic devices.

Functionality

The AT27C256R-70PU is a reliable and high-performance OTP EPROM IC that offers non-volatile storage for various applications. It provides secure and long-term data retention capabilities for embedded systems and electronic devices.

Usage Guide

• Power Supply: Connect VCC (Pin 24) to a +5V power supply and GND (Pin 12) to ground.
• Address and Data Lines: Properly connect the address and data lines for reading and programming operations.
• Chip Enable and Output Enable: Control the CE (Chip Enable) and OE (Output Enable) pins for reading data from the IC.

Frequently Asked Questions

Q: Can the AT27C256R-70PU be reprogrammed?
A: No, the AT27C256R-70PU is a one-time programmable EPROM and cannot be reprogrammed after initial programming.

Q: What is the typical storage lifespan of the AT27C256R-70PU?
A: The AT27C256R-70PU is designed for long-term data retention, with a typical data retention of up to 10 years.