AT28C64E-15PC

Product Overview

Category

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

Use

This product is commonly used in electronic devices for non-volatile data storage. It allows users to write and erase data multiple times, making it ideal for applications that require frequent updates or modifications.

Characteristics

• Non-volatile: The stored data remains intact even when power is removed.
• Electrically erasable: Data can be erased and reprogrammed electronically.
• High storage capacity: The AT28C64E-15PC has a storage capacity of 64 kilobits (8 kilobytes).
• Low power consumption: This chip operates on low power, making it suitable for battery-powered devices.

Package

The AT28C64E-15PC comes in a 28-pin plastic dual in-line package (PDIP). This package provides mechanical protection and facilitates easy integration into circuit boards.

Essence

The essence of this product lies in its ability to store and retrieve data reliably, while allowing for easy modification when needed.

Packaging/Quantity

The AT28C64E-15PC is typically packaged in tubes or trays, with each tube or tray containing a specific quantity of chips. The exact quantity may vary depending on the manufacturer's specifications.

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/erase cycles

Detailed Pin Configuration

The AT28C64E-15PC has a total of 28 pins, each serving a specific purpose. The pin configuration is as follows:

1. A0 - Address input
2. A1 - Address input
3. A2 - Address input
4. A3 - Address input
5. A4 - Address input
6. A5 - Address input
7. A6 - Address input
8. A7 - Address input
9. VCC - Power supply voltage
10. OE - Output enable
11. CE - Chip enable
12. WE - Write enable
13. I/O0 - Data input/output
14. I/O1 - Data input/output
15. I/O2 - Data input/output
16. I/O3 - Data input/output
17. I/O4 - Data input/output
18. I/O5 - Data input/output
19. I/O6 - Data input/output
20. I/O7 - Data input/output
21. NC - No connection
22. GND - Ground
23. NC - No connection
24. NC - No connection
25. NC - No connection
26. NC - No connection
27. NC - No connection
28. NC - No connection

Functional Features

• Byte-wise programmable: The AT28C64E-15PC allows individual bytes to be programmed or erased, providing flexibility in data manipulation.
• High-speed operation: With an access time of 150 nanoseconds, this chip ensures fast data retrieval and modification.
• Low power consumption: The low power requirements make it suitable for battery-powered devices.
• Automatic write protection: The chip features a write protection mechanism that prevents accidental data modification.

Advantages and Disadvantages

Advantages

• Non-volatile storage: Data remains intact even when power is removed.
• Easy reprogramming: Allows for frequent updates or modifications.
• High storage capacity: Offers ample space for data storage needs.
• Fast access time: Ensures quick retrieval and modification of data.
• Low power consumption: Ideal for energy-efficient devices.

Disadvantages

• Limited endurance: The chip has a finite number of write/erase cycles.
• Relatively higher cost compared to other memory technologies.
• Requires careful handling to avoid static damage.

Working Principles

The AT28C64E-15PC utilizes a combination of electronic circuits and memory cells to store and retrieve data. When the chip is powered on, the address lines are used to select a specific memory location. The data lines allow for reading or writing data to that location. The control lines (CE, OE, WE) enable or disable specific operations such as reading, writing, or erasing data.

During a write operation, the desired data is applied to the input/output pins (I/O0-I/O7) and the corresponding address is provided. The write enable (WE) signal is activated to initiate the programming process. Similarly, during an erase operation, the chip erases the selected memory locations based on the provided address.

Detailed Application Field Plans

The AT28C64E-15PC finds applications in various fields where non-volatile data storage is required. Some