AT29C256-12JI

Product Overview

Category

AT29C256-12JI 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) of memory.
• Low power consumption: Operates on low voltage, making it suitable for battery-powered devices.
• Fast access time: Provides quick read and write operations.
• Reliable: Offers high endurance and data retention capabilities.

Package

AT29C256-12JI is available in a JEDEC-standard 32-lead PLCC package.

Essence

The essence of AT29C256-12JI lies in its ability to provide reliable and non-volatile memory storage for electronic devices.

Packaging/Quantity

This product is typically packaged in reels or tubes, with each containing a specific quantity of AT29C256-12JI chips.

Specifications

• Organization: 32K x 8 bits
• Voltage Range: 4.5V to 5.5V
• Access Time: 120 ns
• Operating Temperature Range: -40°C to +85°C
• Erase/Write Cycle Endurance: 10,000 cycles
• Data Retention: 20 years

Pin Configuration

The AT29C256-12JI has a total of 32 pins, which are assigned specific functions as follows:

1. A16
2. A14
3. A12
4. A7
5. A6
6. A5
7. A4
8. A3
9. A2
10. A1
11. A0
12. VPP
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. VCC
25. GND
26. NC
27. A8
28. A9
29. A11
30. A13
31. A15
32. A10

Functional Features

• Byte-wide operations: Allows individual byte read and write operations.
• Chip enable and output enable control: Provides flexibility in accessing the memory.
• Automatic page write operation: Simplifies the programming process by enabling multiple bytes to be written at once.
• Data polling and toggle bit features: Enable efficient verification of write and erase operations.

Advantages and Disadvantages

Advantages

• Non-volatile nature ensures data retention even during power loss.
• High storage capacity for a wide range of applications.
• Low power consumption makes it suitable for battery-powered devices.
• Fast access time allows for quick data retrieval.
• Reliable endurance and data retention capabilities ensure long-term usability.

Disadvantages

• Limited erase/write cycle endurance compared to some other memory technologies.
• Relatively higher cost per bit compared to certain alternatives.
• Requires careful handling to avoid damage due to electrostatic discharge (ESD).

Working Principles

AT29C256-12JI utilizes Flash memory technology, which is based on the principle of electrically erasable programmable read-only memory (EEPROM). It stores digital information by trapping charges within floating gate transistors. These charges can be manipulated through electrical signals to represent binary data.

The memory cells are organized into a grid-like structure, with each cell capable of storing one bit of information. The control circuitry enables reading, writing, and erasing operations on these cells.

Detailed Application Field Plans

AT29C256-12JI finds applications in various electronic devices, including but not limited to: - Microcontrollers - Embedded systems - Automotive electronics - Industrial control systems - Communication devices - Consumer electronics

Its high storage capacity and reliability make it suitable for storing program code, configuration data, and other critical information in these applications.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to AT29C256-12JI include: - AT28C256 - 27C256 - M27C256B - SST39SF010A

These alternatives may have different specifications, pin configurations, or package options, but they serve the same purpose of non-volatile memory storage. Users should consider their specific requirements and compatibility when selecting an alternative model.

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