AT27C2048-55PU

Product Overview

Category

AT27C2048-55PU belongs to the category of programmable read-only memory (PROM) chips.

Use

This product is commonly used in electronic devices for storing permanent data that cannot be modified or erased. It provides non-volatile memory storage, making it ideal for applications where data integrity is crucial.

Characteristics

• Non-volatile: The stored data remains intact even when power is removed.
• High capacity: The AT27C2048-55PU has a capacity of 2,048 kilobits (256 kilobytes).
• Fast access time: It offers a fast access time of 55 nanoseconds.
• Low power consumption: This chip operates on low power, making it suitable for battery-powered devices.

Package

The AT27C2048-55PU comes in a plastic DIP (Dual In-line Package) with 32 pins. This package type ensures easy installation and compatibility with various electronic systems.

Essence

The essence of the AT27C2048-55PU lies in its ability to provide reliable and secure non-volatile memory storage for electronic devices.

Packaging/Quantity

This product is typically packaged in tubes or trays, with each containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer's specifications.

Specifications

• Capacity: 2,048 kilobits (256 kilobytes)
• Access Time: 55 nanoseconds
• Supply Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Package Type: Plastic DIP (32 pins)

Detailed Pin Configuration

The AT27C2048-55PU has a total of 32 pins, which are assigned specific functions as follows:

1. A0-A16: Address Inputs
2. CE: Chip Enable
3. OE: Output Enable
4. WE: Write Enable
5. VCC: Power Supply (5V)
6. GND: Ground

The remaining pins are either unused or reserved for specific programming and testing purposes.

Functional Features

• Non-volatile storage: The AT27C2048-55PU retains data even when power is removed.
• High-speed access: It offers fast access time, allowing for quick retrieval of stored information.
• Easy integration: The chip's standard pin configuration ensures compatibility with various electronic systems.
• Low power consumption: This product operates on low power, making it suitable for energy-efficient devices.

Advantages and Disadvantages

Advantages

• Reliable and secure non-volatile memory storage.
• High capacity for storing large amounts of data.
• Fast access time for efficient data retrieval.
• Low power consumption for energy efficiency.

Disadvantages

• Data cannot be modified or erased once programmed.
• Limited write endurance compared to other memory technologies.
• Relatively higher cost compared to some alternative memory solutions.

Working Principles

The AT27C2048-55PU utilizes a one-time programmable (OTP) technology. During the manufacturing process, the memory cells are programmed by applying electrical charges to specific locations within the chip. Once programmed, the data becomes permanently stored and cannot be altered or erased.

Detailed Application Field Plans

The AT27C2048-55PU finds applications in various electronic devices that require reliable and non-volatile memory storage. Some common application fields include:

1. Embedded Systems: Used for firmware storage in microcontrollers and other embedded systems.
2. Automotive Electronics: Provides permanent storage for critical data in automotive control units.
3. Industrial Control Systems: Utilized for storing configuration data and program code in industrial automation systems.
4. Medical Devices: Used for storing patient data and firmware in medical equipment.
5. Consumer Electronics: Provides non-volatile memory storage in devices such as gaming consoles, set-top boxes, and digital cameras.

Detailed and Complete Alternative Models

1. AT28C256-15PU: A similar PROM chip with a capacity of 256 kilobits and an access time of 150 nanoseconds.
2. AT29C010A-12PC: A flash memory chip with a capacity of 1 megabit and an access time of 120 nanoseconds.
3. AM27C040-120DC: A larger capacity PROM chip with 4 megabits and an access time of 120 nanoseconds.

These alternative models offer different capacities and access times to cater to specific application requirements.

In conclusion, the AT27C2048-55PU is a programmable read-only memory chip that provides reliable and secure non-volatile memory storage for various electronic devices. With its high capacity, fast access time, and low power consumption, it is well-suited for applications in embedded systems, automotive electronics, industrial control systems, medical devices, and consumer electronics. While it has limitations such as one-time programmability