AT28C64X-25PC

Product Overview

Category

AT28C64X-25PC belongs to the category of non-volatile memory devices.

Use

It is primarily used for storing and retrieving digital information in electronic systems.

Characteristics

• Non-volatile: The stored data is retained even when power is removed.
• High capacity: The AT28C64X-25PC has a capacity of 64 kilobits (8 kilobytes).
• Fast access time: It operates at a speed of 250 nanoseconds.
• Low power consumption: It requires minimal power to operate efficiently.

Package

The AT28C64X-25PC is available in a 28-pin plastic dual in-line package (PDIP).

Essence

This product is an electrically erasable programmable read-only memory (EEPROM) chip. It allows for easy modification of stored data without requiring specialized equipment.

Packaging/Quantity

The AT28C64X-25PC 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 supplier.

Specifications

• Capacity: 64 kilobits (8 kilobytes)
• Access Time: 250 nanoseconds
• Supply Voltage: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 10 years

Detailed Pin Configuration

The AT28C64X-25PC has a total of 28 pins, each serving a specific purpose. Here is a detailed pin configuration:

1. A0-A13: Address Inputs
2. CE: Chip Enable Input
3. OE: Output Enable Input
4. WE: Write Enable Input
5. VCC: Power Supply
6. GND: Ground
7. NC: No Connection
8. DQ0-DQ7: Data Input/Output

Functional Features

• Easy data modification: The AT28C64X-25PC allows for individual byte-level erasure and programming, making it highly flexible.
• High reliability: It offers excellent data retention and endurance characteristics, ensuring the integrity of stored information.
• Low power consumption: The chip operates efficiently with minimal power requirements.
• Compatibility: It is compatible with a wide range of microcontrollers and digital systems.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• Easy to use and program.
• High capacity for storing digital information.
• Fast access time enables quick retrieval of data.
• Low power consumption prolongs battery life in portable devices.

Disadvantages

• Limited write endurance compared to other memory technologies.
• Relatively higher cost per bit compared to some alternatives.
• Requires careful handling to prevent accidental data corruption.

Working Principles

The AT28C64X-25PC utilizes EEPROM technology, which allows for electrical erasure and reprogramming of data. It consists of a grid of memory cells that can be individually addressed and modified. When a specific address is selected, the corresponding memory cell's contents can be read, written, or erased by applying appropriate voltage levels to the control pins.

Detailed Application Field Plans

The AT28C64X-25PC finds applications in various electronic systems, including but not limited to: - Embedded systems - Microcontrollers - Industrial automation - Automotive electronics - Consumer electronics

Its ability to store and retrieve data reliably makes it suitable for applications requiring non-volatile memory.

Detailed and Complete Alternative Models

There are several alternative models available in the market that offer similar functionality to the AT28C64X-25PC. Some notable alternatives include: - AT28C64B-15PU: Similar capacity and characteristics, but with a different package. - 24LC64: An I2C-compatible EEPROM with the same capacity. - M27C64A: A UV-erasable EPROM with similar capacity.

These alternatives can be considered based on specific requirements and compatibility with existing systems.

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