AT28C64E-25JC

Product Overview

Category

AT28C64E-25JC belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

This product is commonly used for non-volatile storage in various electronic devices, such as microcontrollers, computers, and consumer electronics.

Characteristics

• Electrically erasable: The AT28C64E-25JC can be erased and reprogrammed electronically, making it convenient for updating data.
• Non-volatile: The stored data remains even when power is removed.
• High capacity: This chip has a capacity of 64 kilobits, allowing for ample storage space.
• Low power consumption: The AT28C64E-25JC operates on low power, making it suitable for battery-powered devices.

Package

The AT28C64E-25JC is available in a 32-pin PLCC (Plastic Leaded Chip Carrier) package.

Essence

The essence of this product lies in its ability to store and retrieve data reliably, while offering flexibility for updates and low power consumption.

Packaging/Quantity

The AT28C64E-25JC is typically packaged in reels or tubes, with quantities varying based on customer requirements.

Specifications

• Memory Capacity: 64 kilobits (8 kilobytes)
• Operating Voltage: 2.7V - 5.5V
• Access Time: 250 nanoseconds
• Erase/Write Cycles: 10,000 minimum
• Data Retention: 10 years minimum
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AT28C64E-25JC has a total of 32 pins, each serving a specific function. Here is a detailed pin configuration:

1. A0-A14: Address Inputs
2. CE: Chip Enable
3. OE: Output Enable
4. WE: Write Enable
5. VCC: Power Supply
6. GND: Ground
7. DQ0-DQ7: Data Input/Output

Functional Features

• Byte-wise Read/Write: The AT28C64E-25JC allows for individual byte-level read and write operations.
• Electronic Erase: The chip can be erased electronically, eliminating the need for physical erasure methods.
• Hardware Protection: It provides hardware protection against accidental writes to prevent data corruption.
• High-Speed Operation: With a fast access time of 250 nanoseconds, it enables efficient data retrieval.

Advantages and Disadvantages

Advantages

• Flexible and convenient data storage and updates
• Low power consumption
• Compact package size
• High-speed operation

Disadvantages

• Limited erase/write cycles (10,000 minimum)
• Relatively small memory capacity compared to other storage options

Working Principles

The AT28C64E-25JC utilizes a combination of electronic circuits and memory cells to store and retrieve data. When powered on, the chip allows for reading and writing operations based on the control signals received from the connected device.

Detailed Application Field Plans

The AT28C64E-25JC finds applications in various fields, including: 1. Microcontrollers: Used for program storage and data logging. 2. Computers: Employed in BIOS chips and firmware storage. 3. Consumer Electronics: Utilized in devices such as digital cameras, printers, and set-top boxes for non-volatile data storage.

Detailed and Complete Alternative Models

1. AT28C256-15PU: A higher-capacity EEPROM chip with 256 kilobits of memory.
2. AT24C02C-SSHM-T: A smaller EEPROM chip with 2 kilobits of memory, suitable for space-constrained applications.
3. AT93C46D-PU: A serial EEPROM chip with 1 kilobit of memory, commonly used in automotive electronics.

These alternative models offer different capacities and features to cater to diverse application requirements.

In conclusion, the AT28C64E-25JC is an electrically erasable programmable read-only memory chip that provides reliable data storage and retrieval capabilities. With its low power consumption, high-speed operation, and flexible usage, it finds applications in various fields. While it has limitations in terms of erase/write cycles and memory capacity, alternative models are available to suit specific needs.