AT28C64E-15PI

Product Overview

Category

AT28C64E-15PI belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

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

Characteristics

• Non-volatile: Retains stored data even when power is removed.
• Electrically erasable: Allows for easy modification of stored data.
• Programmable: Can be written and rewritten multiple times.
• High storage capacity: The AT28C64E-15PI has a capacity of 64 kilobits (8 kilobytes).

Package

The AT28C64E-15PI is available in a 28-pin plastic dual in-line package (PDIP), which provides ease of integration into circuit boards.

Essence

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

Packaging/Quantity

The AT28C64E-15PI is typically packaged in tubes or trays, with each tube containing 25 chips.

Specifications

• Supply voltage: 5V
• Access time: 150 nanoseconds
• Operating temperature range: -40°C to +85°C
• Data retention: 10 years
• Endurance: 1,000,000 write cycles

Detailed Pin Configuration

The AT28C64E-15PI has a total of 28 pins. Here is the detailed pin configuration:

1. A14
2. A12
3. A7
4. A6
5. A5
6. A4
7. A3
8. A2
9. A1
10. A0
11. /OE (Output Enable)
12. /WE (Write Enable)
13. /CE (Chip Enable)
14. VCC (Supply Voltage)
15. NC (No Connection)
16. DQ0
17. DQ1
18. DQ2
19. DQ3
20. DQ4
21. DQ5
22. DQ6
23. DQ7
24. /BYTE (Byte/Word Organization)
25. /ACC (Access Time Control)
26. GND (Ground)
27. A8
28. A9

Functional Features

• Byte/word organization: Allows for flexible data storage and retrieval.
• Output enable (/OE) control: Enables or disables the output buffers, providing control over data access.
• Write enable (/WE) control: Enables or disables the write operation, ensuring data integrity.
• Chip enable (/CE) control: Activates or deactivates the chip, allowing for efficient power management.

Advantages and Disadvantages

Advantages

• Non-volatile memory: Data is retained even during power loss.
• Electrically erasable: Allows for easy modification of stored data.
• High storage capacity: Provides ample space for data storage needs.
• Reliable performance: Ensures data integrity and longevity.

Disadvantages

• Limited endurance: The AT28C64E-15PI has a finite number of write cycles before it may become unreliable.
• Relatively slow access time: With an access time of 150 nanoseconds, it may not be suitable for applications requiring high-speed data access.

Working Principles

The AT28C64E-15PI utilizes a combination of electronic circuits and memory cells to store and retrieve digital information. When powered on, the chip allows data to be read from or written to specific memory locations based on the control signals received.

Detailed Application Field Plans

The AT28C64E-15PI finds applications in various fields, including: 1. Embedded systems: Used for firmware storage in microcontrollers. 2. Computer systems: Employed for BIOS (Basic Input/Output System) storage. 3. Consumer electronics: Utilized for data storage in devices such as digital cameras and smart TVs.

Detailed and Complete Alternative Models

• AT28C64B-15PU: Similar to the AT28C64E-15PI but available in a different package (PDIP).
• AT28C64D-15SU: Offers the same functionality but comes in a surface-mount package (SOP).

These alternative models provide similar features and can be used as substitutes for the AT28C64E-15PI depending on specific application requirements.

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