AT29C256-20JC

Product Overview

Category

AT29C256-20JC belongs to the category of non-volatile memory devices.

Use

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

Characteristics

• Non-volatile: Retains data even when power is turned off.
• High storage capacity: 256 kilobits (32 kilobytes).
• Fast access time: Operates at a speed of 200 nanoseconds.
• Low power consumption: Designed to minimize energy usage.
• Reliable: Offers high endurance and data retention capabilities.

Package

AT29C256-20JC is available in a 32-pin PLCC (Plastic Leaded Chip Carrier) package.

Essence

The essence of AT29C256-20JC lies in its ability to provide reliable and non-volatile storage for electronic systems.

Packaging/Quantity

This product is typically packaged in reels or tubes, with a quantity of 100 units per reel/tube.

Specifications

• Memory Type: Electrically Erasable Programmable Read-Only Memory (EEPROM)
• Organization: 32 kilobytes x 8 bits
• Supply Voltage: 4.5V to 5.5V
• Access Time: 200 ns
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 10 years
• Endurance: 100,000 write cycles

Pin Configuration

The pin configuration of AT29C256-20JC is 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. VCC
21. GND
22. I/O4
23. I/O5
24. I/O6
25. I/O7
26. A8
27. A9
28. A11
29. A13
30. NC
31. NC
32. A15

Functional Features

• Byte-wise programmable: Allows individual bytes to be programmed or erased.
• Easy interface: Supports standard microcontroller interfaces for seamless integration.
• Hardware and software protection: Provides mechanisms to prevent accidental writes or erases.
• High-speed operation: Enables fast data access and transfer.

Advantages and Disadvantages

Advantages

• Non-volatile storage: Retains data even without power, ensuring data integrity.
• High endurance: Can withstand a large number of write cycles.
• Low power consumption: Helps conserve energy in electronic systems.
• Compact package: PLCC package offers space-saving benefits.

Disadvantages

• Limited storage capacity: 256 kilobits may not be sufficient for certain applications requiring larger memory sizes.
• Relatively slower access time compared to some modern memory technologies.

Working Principles

AT29C256-20JC utilizes EEPROM technology, which allows for electrically erasing and reprogramming of data. It employs a grid of floating-gate transistors that can be selectively charged or discharged to represent binary data. The memory cells are organized into an array, and each cell can store one bit of information. Data can be written to or read from the memory using appropriate control signals.

Detailed Application Field Plans

AT29C256-20JC 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

Some alternative models that offer similar functionality to AT29C256-20JC are: - AT28C256-15PU: 256 kilobit EEPROM with a different package and access time. - AT27C256R-70PU: 256 kilobit EPROM (Erasable Programmable Read-Only Memory) with a different package and operating voltage.

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

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