AT27C256R-15JC

Product Overview

Category

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

Use

This chip is primarily used for storing data that needs to be permanently stored and cannot be modified or erased. It finds applications in various electronic devices where non-volatile memory is required.

Characteristics

• Non-volatile: The stored data remains intact even when power is turned off.
• High storage capacity: The AT27C256R-15JC has a storage capacity of 256 kilobits.
• Fast access time: It has a maximum access time of 150 nanoseconds, ensuring quick retrieval of data.
• Low power consumption: The chip operates at low power levels, making it suitable for battery-powered devices.

Package

The AT27C256R-15JC comes in a 32-pin plastic J-lead chip carrier (PLCC) package.

Essence

The essence of this PROM chip lies in its ability to store data permanently, providing reliable and secure storage solutions for electronic devices.

Packaging/Quantity

The AT27C256R-15JC is typically packaged in reels containing a quantity of 250 units.

Specifications

• Storage Capacity: 256 kilobits (32 kilobytes)
• Access Time: 150 nanoseconds
• Operating Voltage: 5 volts
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 20 years

Detailed Pin Configuration

The AT27C256R-15JC has a total of 32 pins, each serving a specific function. The pin configuration is as follows:

1. A0 - Address Input
2. A1 - Address Input
3. A2 - Address Input
4. A3 - Address Input
5. A4 - Address Input
6. A5 - Address Input
7. A6 - Address Input
8. A7 - Address Input
9. A8 - Address Input
10. A9 - Address Input
11. A10 - Address Input
12. A11 - Address Input
13. A12 - Address Input
14. A13 - Address Input
15. A14 - Address Input
16. A15 - Address Input
17. /OE - Output Enable
18. /CE - Chip Enable
19. /WE - Write Enable
20. VCC - Power Supply
21. D0 - Data Input/Output
22. D1 - Data Input/Output
23. D2 - Data Input/Output
24. D3 - Data Input/Output
25. D4 - Data Input/Output
26. D5 - Data Input/Output
27. D6 - Data Input/Output
28. D7 - Data Input/Output
29. NC - No Connection
30. GND - Ground
31. NC - No Connection
32. NC - No Connection

Functional Features

• Non-volatile storage: The AT27C256R-15JC retains data even when power is disconnected.
• High-speed access: With a maximum access time of 150 nanoseconds, data retrieval is quick and efficient.
• Easy integration: The chip can be easily integrated into various electronic systems due to its standard pin configuration.
• Low power consumption: The AT27C256R-15JC operates at low power levels, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages

• Permanent data storage
• Fast access time
• Low power consumption
• Easy integration into electronic systems

Disadvantages

• Data cannot be modified or erased once programmed
• Limited storage capacity compared to other memory technologies

Working Principles

The AT27C256R-15JC operates based on the principle of electrical programming. The data is programmed into the chip during the manufacturing process using specialized equipment. Once programmed, the data remains stored in the chip indefinitely and can be accessed whenever required.

Detailed Application Field Plans

The AT27C256R-15JC finds applications in various electronic devices that require non-volatile memory. Some common application fields include:

1. Embedded Systems: The chip is used in embedded systems to store firmware, boot code, and configuration data.
2. Automotive Electronics: It is utilized in automotive electronics for storing critical data such as calibration parameters, vehicle identification numbers (VIN), and software updates.
3. Industrial Control Systems: The AT27C256R-15JC is employed in industrial control systems to store program instructions and configuration settings.
4. Consumer Electronics: It can be found in consumer electronics devices like gaming consoles, set-top boxes, and digital cameras for storing system software and user data.

Detailed and Complete Alternative Models

1. AT28C256-15PU: This is an alternative PROM chip with similar