AT28C64-12PC

Product Overview

Category

AT28C64-12PC belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

This product is primarily used for non-volatile data storage in electronic devices. It allows users to store and retrieve data even when the power supply is turned off.

Characteristics

• Non-volatile: The stored data remains intact even without power.
• Electrically erasable: The data can be erased and reprogrammed electronically.
• High storage capacity: The AT28C64-12PC 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 AT28C64-12PC comes in a 28-pin plastic dual in-line package (PDIP). This package provides physical protection to the chip and facilitates easy integration into electronic circuits.

Essence

The essence of AT28C64-12PC lies in its ability to store and retain data reliably, even in the absence of power. This makes it an essential component in various electronic devices where non-volatile memory is required.

Packaging/Quantity

The AT28C64-12PC is typically packaged in tubes or trays, with each tube or tray containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer and supplier.

Specifications

• Manufacturer: Atmel Corporation
• Part Number: AT28C64-12PC
• Memory Type: Electrically Erasable Programmable Read-Only Memory (EEPROM)
• Capacity: 64 kilobits (8 kilobytes)
• Access Time: 120 nanoseconds
• Supply Voltage: 5 volts
• Operating Temperature Range: -40°C to +85°C
• Package Type: 28-pin Plastic Dual In-Line Package (PDIP)

Detailed Pin Configuration

The AT28C64-12PC has a total of 28 pins, each serving a specific purpose. The pin configuration is as follows:

1. A14 - Address Input
2. A12 - Address Input
3. A7 - Address Input
4. A6 - Address Input
5. A5 - Address Input
6. A4 - Address Input
7. A3 - Address Input
8. A2 - Address Input
9. A1 - Address Input
10. A0 - Address Input
11. /OE - Output Enable
12. /WE - Write Enable
13. VCC - Power Supply
14. NC - No Connection
15. DQ0 - Data Input/Output
16. DQ1 - Data Input/Output
17. DQ2 - Data Input/Output
18. DQ3 - Data Input/Output
19. DQ4 - Data Input/Output
20. DQ5 - Data Input/Output
21. DQ6 - Data Input/Output
22. DQ7 - Data Input/Output
23. /CE - Chip Enable
24. /PGM - Program
25. /VPP - Programming Voltage
26. GND - Ground
27. NC - No Connection
28. A8 - Address Input

Functional Features

The AT28C64-12PC offers the following functional features:

1. High-speed access: With an access time of 120 nanoseconds, this chip allows for quick retrieval and storage of data.
2. Easy integration: The 28-pin PDIP package enables easy integration into electronic circuits.
3. Low power consumption: The AT28C64-12PC operates on low power, making it suitable for battery-powered devices.
4. Reliable data retention: The non-volatile nature of EEPROM ensures that the stored data remains intact even during power loss or device shutdown.

Advantages and Disadvantages

Advantages

• Non-volatile memory allows data retention without power supply.
• Electrically erasable and reprogrammable, providing flexibility in data storage.
• High storage capacity for various applications.
• Low power consumption, suitable for battery-powered devices.

Disadvantages

• Relatively slower access time compared to other types of memory.
• Limited endurance cycles for write and erase operations.
• Higher cost compared to volatile memory options.

Working Principles

The AT28C64-12PC operates based on the principles of electrically erasable programmable read-only memory (EEPROM). It utilizes a grid of transistors to store and retrieve data. When data is written, an electrical charge is applied to specific cells within the chip, altering their state. This change in state represents the stored data. To read the data, the chip applies voltage to the appropriate cells and measures the resulting electrical response.

Detailed Application Field Plans