AT29C256-20PI

Product Overview

Category

AT29C256-20PI 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.
• Fast access time: Operates at a speed of 200 nanoseconds.
• Low power consumption: Designed to minimize energy usage.
• Durable: Can withstand multiple read and write cycles without degradation.

Package

AT29C256-20PI is available in a 28-pin plastic dual in-line package (PDIP).

Essence

The essence of AT29C256-20PI lies in its ability to provide reliable and non-volatile storage for electronic devices, ensuring data integrity and accessibility.

Packaging/Quantity

This product is typically packaged in reels or tubes, with each containing a specific quantity of AT29C256-20PI chips. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Memory Capacity: 256 kilobits (32 kilobytes)
• Access Time: 200 nanoseconds
• Supply Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 10 years

Pin Configuration

The AT29C256-20PI has a total of 28 pins, each serving a specific function. The pin configuration is as follows:

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. NC
25. GND
26. A8
27. A9
28. A11

Functional Features

• Byte-wide operations: Allows individual bytes to be read, written, or erased.
• Sector erase capability: Enables selective erasure of specific memory sectors.
• Hardware and software data protection: Provides security measures to prevent accidental modification or deletion of stored data.
• Automatic sleep mode: Reduces power consumption when the device is idle.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data retention even during power loss.
• High storage capacity for a wide range of applications.
• Fast access time allows for efficient data retrieval.
• Low power consumption prolongs battery life in portable devices.
• Durable design withstands frequent read and write operations.

Disadvantages

• Limited storage capacity compared to newer memory technologies.
• Relatively slower access time compared to some modern memory solutions.
• Requires careful handling to avoid electrostatic discharge (ESD) damage.

Working Principles

AT29C256-20PI utilizes electrically erasable programmable read-only memory (EEPROM) technology. It stores data by trapping electrical charges within floating gate transistors. These charges can be selectively removed or added using voltage pulses, allowing data to be written or erased.

Detailed Application Field Plans

AT29C256-20PI finds application in various electronic devices that require non-volatile memory storage, such as: - Microcontrollers - Embedded systems - Automotive electronics - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

• AT28C256-20PI: Similar to AT29C256-20PI, but with a different manufacturer.
• AT29C256-12PC: Offers a slower access time of 120 nanoseconds.
• AT29C256-90JC: Operates at an extended temperature range of -40°C to +125°C.

These alternative models provide similar functionality and can be used as substitutes for AT29C256-20PI in various applications.

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