AT29C256-15PI

Product Overview

Category: Integrated Circuit (IC)

Use: The AT29C256-15PI is a high-performance electrically erasable and programmable read-only memory (EEPROM) IC. It is commonly used for non-volatile storage in various electronic devices.

Characteristics: - High-speed operation - Low power consumption - Wide voltage range - Reliable data retention - Easy to program and erase

Package: The AT29C256-15PI is available in a 28-pin DIP (Dual In-line Package) format, which allows for easy integration into circuit boards.

Essence: This IC is designed to provide reliable and efficient non-volatile memory storage for electronic devices.

Packaging/Quantity: The AT29C256-15PI is typically packaged in tubes or trays, with a quantity of 25 units per tube/tray.

Specifications

• Memory Size: 256 kilobits (32 kilobytes)
• Operating Voltage: 2.7V to 5.5V
• Access Time: 150 nanoseconds
• Erase/Program Cycle Endurance: 10,000 cycles
• Data Retention: 10 years
• Organization: 32,768 words x 8 bits

Pin Configuration

The AT29C256-15PI has a total of 28 pins, each serving a specific function. The detailed pin configuration is as follows:

1. A16 - Address Input
2. A14 - Address Input
3. A12 - Address Input
4. A7 - Address Input
5. A6 - Address Input
6. A5 - Address Input
7. A4 - Address Input
8. A3 - Address Input
9. A2 - Address Input
10. A1 - Address Input
11. A0 - Address Input
12. VCC - Power Supply
13. OE - Output Enable
14. CE - Chip Enable
15. WE - Write Enable
16. I/O0 - Data Input/Output
17. I/O1 - Data Input/Output
18. I/O2 - Data Input/Output
19. I/O3 - Data Input/Output
20. I/O4 - Data Input/Output
21. I/O5 - Data Input/Output
22. I/O6 - Data Input/Output
23. I/O7 - Data Input/Output
24. NC - No Connection
25. GND - Ground
26. A8 - Address Input
27. A9 - Address Input
28. A11 - Address Input

Functional Features

The AT29C256-15PI offers the following functional features:

• High-speed read and write operations
• Easy integration into existing circuit designs
• Low power consumption for efficient operation
• Reliable data retention even in harsh environments
• Simple programming and erasing mechanisms

Advantages and Disadvantages

Advantages: - Fast access time allows for quick data retrieval - Wide voltage range enables compatibility with various systems - High endurance ensures long-term reliability - Easy to program and erase, facilitating efficient memory management

Disadvantages: - Limited storage capacity compared to other memory technologies - Relatively higher cost per kilobit compared to alternative options

Working Principles

The AT29C256-15PI utilizes electrically erasable and programmable memory technology. It stores data by trapping charges in a floating gate within each memory cell. The presence or absence of these charges determines the stored data. To program or erase the memory, specific voltage levels are applied to the control pins, allowing the charges to be added or removed.

Detailed Application Field Plans

The AT29C256-15PI finds applications in various electronic devices that require non-volatile memory storage. Some common application fields include:

1. Consumer Electronics: Used in digital cameras, MP3 players, and handheld gaming devices for storing firmware, configuration data, and user settings.
2. Industrial Control Systems: Employed in programmable logic controllers (PLCs), process control systems, and automation equipment to store critical program code and data.
3. Automotive Electronics: Integrated into automotive ECUs (Engine Control Units), infotainment systems, and instrument clusters for reliable data storage and retrieval.
4. Communication Devices: Utilized in routers, switches, and network equipment to store firmware, MAC addresses, and configuration data.

Detailed and Complete Alternative Models

1. AT28C256-15PU: Similar to the AT29C256-15PI, this IC offers the same memory size and operating characteristics but comes in a different package format (PDIP).
2. AT25P256-10SI: This alternative model provides a smaller memory size (256 kilobits) but operates at a faster access time of