The AT27C4096-55JI is a 4-megabit (512K x 8) One-Time Programmable (OTP) EPROM (Erasable Programmable Read-Only Memory). It offers a non-volatile storage solution for applications requiring moderate memory capacity. This device is known for its reliable data retention and ease of programming. It provides a cost-effective option for storing firmware, boot code, and other critical data.

Applications:

• Embedded Systems: Used in embedded systems for storing firmware and boot code.
• Industrial Control Systems: Employed in industrial control systems for storing configuration data and program code.
• Consumer Electronics: Integrated into consumer electronics for storing application code and data.
• Telecommunications Equipment: Used in telecommunications equipment for storing system parameters and configuration settings.
• Medical Devices: Integrated into medical devices for storing program code and calibration data.

Features:

• 4-Megabit Capacity: Provides a 4-megabit (512K x 8) storage capacity.
• OTP EPROM: One-Time Programmable (OTP) EPROM for permanent storage.
• Fast Access Time: Offers a fast access time of 55ns for quick data retrieval.
• Low Power Consumption: Designed for low power operation.
• TTL Compatible Inputs/Outputs: Features TTL compatible inputs and outputs for easy interfacing.
• JEDEC Standard Pinout: Adheres to the JEDEC standard pinout for compatibility with other memory devices.

Benefits:

• Non-Volatile Storage: Provides non-volatile storage for reliable data retention.
• Fast Data Retrieval: Fast access time ensures quick data retrieval.
• Cost-Effective Solution: Offers a cost-effective solution for moderate memory requirements.
• Easy Programming: Can be easily programmed using standard EPROM programmers.
• Wide Compatibility: JEDEC standard pinout ensures wide compatibility.

Additional Details:

The AT27C4096-55JI is typically packaged in a DIP (Dual In-line Package) or PLCC (Plastic Leaded Chip Carrier) package. It requires a programming voltage for writing data to the memory array. The device features a chip enable (CE) input for selecting the device and an output enable (OE) input for controlling the output. The address and data lines are multiplexed to minimize the pin count. Given its end-of-life status, it is important to consider replacement options for future designs. Newer flash memory devices offer higher densities and improved performance.