AT27C256R-15TC

Product Overview

Category

AT27C256R-15TC belongs to the category of programmable read-only memory (PROM) chips.

Use

This chip is commonly used for storing non-volatile data that needs to be permanently stored even when power is turned off. It allows users to write data onto the chip during manufacturing and then read it back later.

Characteristics

• Non-volatile: The data stored in AT27C256R-15TC remains intact even without power.
• High storage capacity: This chip has a storage capacity of 256 kilobits (32 kilobytes).
• Fast access time: With a speed rating of 150 nanoseconds, it provides quick access to stored data.
• Low power consumption: AT27C256R-15TC operates on low power, making it suitable for battery-powered devices.

Package

AT27C256R-15TC comes in a 28-pin dual in-line package (DIP), which is a common form factor for integrated circuits.

Essence

The essence of AT27C256R-15TC lies in its ability to store and retrieve data reliably, even in the absence of power. It offers a cost-effective solution for applications requiring non-volatile memory.

Packaging/Quantity

AT27C256R-15TC is typically packaged in tubes or trays, with each containing a specific quantity of chips. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Storage Capacity: 256 kilobits (32 kilobytes)
• Access Time: 150 nanoseconds
• Operating Voltage: 5 volts
• Package Type: 28-pin DIP
• Temperature Range: -40°C to +85°C

Detailed Pin Configuration

1. A14
2. A12
3. A7
4. A6
5. A5
6. A4
7. A3
8. A2
9. A1
10. A0
11. /OE (Output Enable)
12. /CE (Chip Enable)
13. NC (No Connection)
14. D7
15. D6
16. D5
17. D4
18. D3
19. D2
20. D1
21. D0
22. VCC (Power Supply)
23. /PGM (Program)
24. /BYTE (Byte/Word Organization)
25. /WE (Write Enable)
26. /RESET (Reset)
27. NC (No Connection)
28. GND (Ground)

Functional Features

• Non-volatile storage: AT27C256R-15TC retains data even when power is turned off.
• High-speed access: The chip provides quick access to stored data with a low access time.
• Easy integration: It can be easily integrated into various electronic systems due to its standard pin configuration and package.

Advantages and Disadvantages

Advantages

• Reliable non-volatile storage solution
• Fast access time for efficient data retrieval
• Low power consumption
• Cost-effective compared to other memory technologies

Disadvantages

• Limited storage capacity compared to modern memory technologies
• Inability to modify or erase stored data once programmed

Working Principles

AT27C256R-15TC uses a technology called electrically erasable programmable read-only memory (EEPROM). During the manufacturing process, data is written onto the chip using electrical signals. Once programmed, the data remains stored in the chip until it is overwritten or erased using specialized equipment.

Detailed Application Field Plans

AT27C256R-15TC finds applications in various fields, including: 1. Embedded systems: Used for storing firmware and configuration data in microcontrollers. 2. Automotive electronics: Used for storing calibration data, vehicle settings, and firmware in automotive control units. 3. Industrial automation: Used for storing program code and configuration data in programmable logic controllers (PLCs). 4. Consumer electronics: Used in devices such as gaming consoles, set-top boxes, and audio equipment for storing firmware and data.

Detailed and Complete Alternative Models

1. AT28C256-15PC: Similar to AT27C256R-15TC, but with a different package type (DIP) and operating voltage (5 volts).
2. AM27C256-150DC: Another alternative with similar specifications, but offered by a different manufacturer.

Please note that the above list is not exhaustive, and there may be other alternative models available in the market.

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