AT29C256-12PI

Product Overview

Category

AT29C256-12PI belongs to the category of non-volatile memory integrated circuits.

Use

It is primarily used for storing and retrieving digital information in electronic devices.

Characteristics

• Non-volatile: Retains data even when power is turned off.
• High storage capacity: 256 kilobits (32 kilobytes).
• Fast access time: 120 nanoseconds.
• Low power consumption.
• Easy to integrate into electronic systems.

Package

AT29C256-12PI is available in a 28-pin DIP (Dual In-line Package) format.

Essence

The essence of AT29C256-12PI lies in its ability to provide reliable and non-volatile storage for electronic devices, ensuring data integrity even during power loss or system shutdowns.

Packaging/Quantity

AT29C256-12PI is typically packaged in tubes or trays, with quantities varying based on customer requirements.

Specifications

• Memory Type: Electrically Erasable Programmable Read-Only Memory (EEPROM)
• Organization: 32K x 8 bits
• Supply Voltage: 4.5V to 5.5V
• Access Time: 120 ns
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 10 years
• Endurance: 100,000 write cycles

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#
12. CE#
13. WE#
14. I/O0
15. I/O1
16. I/O2
17. I/O3
18. VCC
19. I/O4
20. I/O5
21. I/O6
22. I/O7
23. A8
24. A9
25. A11
26. A10
27. NC
28. GND

Functional Features

• Byte-wide random access: Allows individual bytes to be read or written independently.
• Fast write and erase operations: Enables efficient data storage and retrieval.
• Automatic page write: Simplifies programming by allowing multiple bytes to be written at once.
• Hardware and software data protection mechanisms: Ensures data integrity and prevents accidental modifications.

Advantages and Disadvantages

Advantages

• Non-volatile memory: Data retention even without power supply.
• High storage capacity: 256 kilobits for storing large amounts of information.
• Fast access time: Quick retrieval of data.
• Low power consumption: Energy-efficient operation.
• Easy integration: Compatible with various electronic systems.

Disadvantages

• Limited endurance: Can withstand a finite number of write cycles.
• Relatively higher cost compared to other memory technologies.
• Larger physical size due to the DIP package.

Working Principles

AT29C256-12PI utilizes EEPROM technology, which allows for electrically erasing and reprogramming of data. It consists of a grid of memory cells that can be individually addressed and modified using specific control signals. When data is written, an electrical charge is applied to the memory cell, altering its state. Reading involves detecting the stored charge in each memory cell. The non-volatile nature of EEPROM ensures that data remains intact even when power is removed.

Detailed Application Field Plans

AT29C256-12PI finds applications in various electronic devices, including but not limited to: - Microcontrollers - Embedded systems - Industrial automation equipment - Automotive electronics - Communication devices

Its ability to store and retrieve data reliably makes it suitable for applications that require non-volatile memory with moderate storage capacity.

Detailed and Complete Alternative Models

• AT28C256
• AT27C256R
• M27C256B
• 29F040B
• W27C512

These alternative models offer similar functionality and can be considered as replacements for AT29C256-12PI based on specific requirements and compatibility considerations.

In conclusion, AT29C256-12PI is a non-volatile memory integrated circuit that provides reliable storage and retrieval of digital information. With its high storage capacity, fast access time, and low power consumption, it is well-suited for various electronic applications. However, it has limitations in terms of endurance and physical size. Alternative models are available to cater to different needs and system requirements.