AT28C64B-15TA

Product Overview

Category

AT28C64B-15TA 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

• Non-volatile: Retains data even when power is removed.
• Electrically erasable: Can be erased and reprogrammed electronically.
• High storage capacity: The AT28C64B-15TA has a capacity of 64 kilobits (8 kilobytes).
• Low power consumption: Operates on low power supply voltages.
• Fast access time: Provides quick access to stored data.

Package

The AT28C64B-15TA is available in a standard 28-pin dual in-line package (DIP).

Essence

The essence of this product lies in its ability to store and retrieve digital information reliably and efficiently.

Packaging/Quantity

The AT28C64B-15TA is typically packaged in reels or tubes, with each containing a specific quantity of chips. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Supply voltage: 4.5V to 5.5V
• Operating temperature range: -40°C to +85°C
• Access time: 150 nanoseconds
• Data retention: Minimum 10 years
• Endurance: Minimum 100,000 write/erase cycles

Detailed Pin Configuration

The AT28C64B-15TA has a total of 28 pins. The pin configuration is as follows:

1. A0
2. A1
3. A2
4. A3
5. A4
6. A5
7. A6
8. A7
9. VCC
10. OE#
11. CE#
12. WE#
13. I/O0
14. I/O1
15. I/O2
16. I/O3
17. I/O4
18. I/O5
19. I/O6
20. I/O7
21. NC
22. NC
23. NC
24. GND
25. NC
26. NC
27. NC
28. NC

Functional Features

• Byte-wise programmable: Allows individual bytes to be programmed or erased.
• Hardware and software data protection: Provides mechanisms to prevent accidental modification of stored data.
• Automatic page write: Enables efficient programming of multiple bytes in a single operation.
• Chip enable (CE#) and output enable (OE#) control: Facilitates easy interfacing with other devices.

Advantages and Disadvantages

Advantages

• Non-volatile storage: Data remains intact even without power.
• Electrically erasable: Can be reprogrammed without the need for physical removal.
• High storage capacity: Offers ample space for storing data.
• Low power consumption: Operates efficiently on low power supply voltages.
• Fast access time: Allows quick retrieval of stored information.

Disadvantages

• Limited endurance: The number of write/erase cycles is finite.
• Relatively small storage capacity compared to other memory technologies.
• Sensitive to electrical noise and voltage fluctuations.

Working Principles

The AT28C64B-15TA utilizes a combination of floating gate transistors and electronic circuits to store and retrieve digital data. When data needs to be written, an electric charge is applied to specific memory cells, altering their state. To erase data, the charge is removed from the cells. The stored information can be accessed by sending appropriate signals to the chip's control pins.

Detailed Application Field Plans

The AT28C64B-15TA finds applications in various fields, including:

1. Embedded systems: Used for program storage in microcontrollers and other embedded devices.
2. Computer memory expansion: Provides additional non-volatile storage for computers.
3. Consumer electronics: Used in devices such as digital cameras, printers, and set-top boxes for data storage.
4. Automotive electronics: Utilized in automotive systems for storing configuration data and firmware.

Detailed and Complete Alternative Models

Some alternative models to the AT28C64B-15TA include:

1. AT28C256-15PU: Offers a higher storage capacity of 256 kilobits (32 kilobytes).
2. AT28C16-15PC: Provides a lower storage capacity of 16 kilobits (2 kilobytes).
3. AT28C010-12DM/883: Designed for military and aerospace applications with extended temperature range and enhanced reliability.

These alternative models cater to different requirements and can be chosen based on specific project needs.

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