AT29C256-90PI

Product Overview

Category

AT29C256-90PI 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: 90 nanoseconds.
• Low power consumption.
• Durable and reliable.

Package

AT29C256-90PI is available in a plastic dual in-line package (PDIP).

Essence

The essence of AT29C256-90PI lies in its ability to provide non-volatile memory storage with high capacity and fast access time, making it suitable for various applications.

Packaging/Quantity

AT29C256-90PI is typically packaged in tubes or trays, with each tube containing 25 pieces.

Specifications

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

Detailed Pin Configuration

1. A16
2. A15
3. A12
4. A7
5. A6
6. A5
7. A4
8. A3
9. A2
10. A1
11. A0
12. VCC
13. OE#
14. CE#
15. WE#
16. I/O0
17. I/O1
18. I/O2
19. I/O3
20. I/O4
21. I/O5
22. I/O6
23. I/O7
24. GND

Functional Features

• Byte-wide random access for both read and write operations.
• Fast page write capability.
• Automatic erase and write timing.
• Hardware and software data protection mechanisms.
• Low power consumption during standby.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even without power.
• High storage capacity allows for storing large amounts of information.
• Fast access time enables quick retrieval of data.
• Low power consumption helps conserve energy.
• Durable and reliable, suitable for long-term use.

Disadvantages

• Limited endurance with a maximum of 100,000 write cycles.
• Relatively higher cost compared to other memory technologies.
• Requires specific programming and erasing procedures.

Working Principles

AT29C256-90PI utilizes EEPROM technology, which allows for electrically erasing and reprogramming the memory cells. The memory is organized into a grid of rows and columns, with each cell capable of storing one bit of information. To write or erase data, specific voltage levels are applied to the control pins, enabling the modification of individual memory cells.

Detailed Application Field Plans

AT29C256-90PI finds applications in various electronic devices, including but not limited to: - Microcontrollers - Embedded systems - Automotive electronics - Industrial control systems - Communication devices

Detailed and Complete Alternative Models

1. AT28C256-15PU: Similar specifications with a slower access time of 150 nanoseconds.
2. AT27C256R-70PU: One-time programmable variant with a faster access time of 70 nanoseconds.
3. AT49BV256-12TU: Flash memory alternative with a higher endurance of 1 million write cycles.

These alternative models offer different features and performance characteristics, allowing users to choose the most suitable option for their specific requirements.

In conclusion, AT29C256-90PI is a non-volatile memory integrated circuit that provides high-capacity storage with fast access time. Its functional features, advantages, and disadvantages make it suitable for various applications in different industries. Alternative models offer flexibility in choosing the appropriate memory solution.