AT29C256-90JI

Product Overview

Category

AT29C256-90JI 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: The stored data is retained even when power is removed.
• High storage capacity: The AT29C256-90JI has a capacity of 256 kilobits (32 kilobytes).
• Fast access time: It offers a fast access time of 90 nanoseconds.
• Low power consumption: The device operates at low power, making it suitable for battery-powered applications.

Package

The AT29C256-90JI is available in a JEDEC-standard 32-lead PLCC package.

Essence

The essence of AT29C256-90JI lies in its ability to provide reliable and non-volatile storage for digital data in various electronic systems.

Packaging/Quantity

The product is typically packaged in reels or tubes, with each containing a specific quantity of AT29C256-90JI chips. The exact quantity may vary depending on the supplier.

Specifications

• Memory Capacity: 256 kilobits (32 kilobytes)
• Access Time: 90 nanoseconds
• Supply Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Package Type: 32-lead PLCC

Detailed Pin Configuration

The AT29C256-90JI features a 32-pin configuration. Here is a detailed pinout:

1. A16
2. A15
3. A12
4. A7
5. A6
6. A5
7. A4
8. A3
9. A2
10. A1
11. A0
12. OE#
13. CE#
14. WE#
15. VCC
16. NC
17. I/O0
18. I/O1
19. I/O2
20. I/O3
21. I/O4
22. I/O5
23. I/O6
24. I/O7
25. A8
26. A9
27. A11
28. A10
29. RESET#
30. GND
31. NC
32. NC

Functional Features

• Byte-wide operations: The AT29C256-90JI allows for byte-level read and write operations.
• Sector erase capability: It supports sector erase operations, enabling selective erasure of specific memory sectors.
• Hardware data protection: The device features a hardware protection mechanism to prevent accidental writes or erasures.
• High reliability: AT29C256-90JI offers high endurance and data retention capabilities, ensuring reliable long-term storage.

Advantages and Disadvantages

Advantages

• Non-volatile storage: Data is retained even without power, making it suitable for critical applications.
• Fast access time: The 90 nanosecond access time ensures quick retrieval of stored information.
• Low power consumption: The device operates at low power, extending battery life in portable devices.
• Sector erase capability: Allows for efficient management of memory space by selectively erasing specific sectors.

Disadvantages

• Limited storage capacity: With a capacity of 256 kilobits, the AT29C256-90JI may not be sufficient for applications requiring larger memory sizes.
• Relatively slower compared to some modern memory technologies: While still fast, the 90 nanosecond access time may be slower compared to newer memory technologies.

Working Principles

The AT29C256-90JI utilizes Flash memory technology to store digital data. It employs a combination of floating-gate transistors and control circuitry to enable non-volatile storage. The device operates by applying specific voltage levels to the control pins, allowing for read, write, and erase operations.

Detailed Application Field Plans

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

Detailed and Complete Alternative Models

Here are some alternative models that offer similar functionality to the AT29C256-90JI: - AT28C256-15PU: 256 kilobit EEPROM with a 150 nanosecond access time. - AM29F040B-90JC: 512 kilobit Flash memory with a 90 nanosecond access time. - M27C256B-12F1: 256 kilobit EPROM with a 120 nanosecond access time.

These alternative models can be considered based on specific requirements and compatibility with the target system.

In conclusion, the AT29C256-90JI is a non-volatile memory integrated circuit that offers reliable storage and retrieval of digital data