AT27LV256A-12JI

Product Overview

Category

AT27LV256A-12JI belongs to the category of integrated circuits (ICs) and specifically falls under the category of programmable read-only memory (PROM) chips.

Use

The AT27LV256A-12JI chip is primarily used for non-volatile storage of data in electronic devices. It allows for permanent storage of information that remains even when power is turned off.

Characteristics

• Non-volatile: The stored data remains intact even without power.
• High capacity: The chip has a storage capacity of 256 kilobits.
• Low power consumption: Designed to operate with minimal power requirements.
• Fast access time: The chip offers a fast access time of 120 nanoseconds.

Package

The AT27LV256A-12JI chip is available in a 32-pin plastic J-lead chip carrier (PLCC) package. This package provides protection and facilitates easy installation on circuit boards.

Essence

The essence of the AT27LV256A-12JI chip lies in its ability to provide reliable and non-volatile storage for electronic devices, ensuring data integrity even during power loss or system shutdown.

Packaging/Quantity

The AT27LV256A-12JI chip is typically packaged in reels or tubes, containing a specific quantity of chips per package. The exact packaging and quantity may vary depending on the supplier or manufacturer.

Specifications

• Manufacturer: Atmel Corporation
• Part Number: AT27LV256A-12JI
• Memory Type: Programmable Read-Only Memory (PROM)
• Capacity: 256 kilobits (32 kilobytes)
• Access Time: 120 nanoseconds
• Supply Voltage: 5V ±10%
• Operating Temperature Range: -40°C to +85°C
• Package Type: 32-pin PLCC

Detailed Pin Configuration

The AT27LV256A-12JI chip has a total of 32 pins, each serving a specific purpose. 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. /OE - Output Enable
17. /CE - Chip Enable
18. /WE - Write Enable
19. I/O0 - Data Input/Output
20. I/O1 - Data Input/Output
21. I/O2 - Data Input/Output
22. I/O3 - Data Input/Output
23. I/O4 - Data Input/Output
24. I/O5 - Data Input/Output
25. VSS - Ground
26. I/O6 - Data Input/Output
27. I/O7 - Data Input/Output
28. VCC - Power Supply
29. NC - No Connection
30. NC - No Connection
31. NC - No Connection
32. NC - No Connection

Functional Features

The AT27LV256A-12JI chip offers the following functional features:

• Non-volatile storage: The chip retains data even when power is turned off.
• High-speed access: It provides fast access time for efficient data retrieval.
• Easy integration: The chip can be easily integrated into existing electronic systems.
• Low power consumption: Designed to operate with minimal power requirements.
• Reliable performance: Ensures data integrity and long-term reliability.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data retention during power loss.
• High capacity allows for storing a significant amount of data.
• Fast access time enables quick retrieval of information.
• Easy integration into electronic systems.
• Low power consumption prolongs battery life in portable devices.

Disadvantages

• Limited rewrite capability compared to other memory technologies.
• Higher cost per bit compared to some other memory types.
• Susceptible to physical damage if mishandled or exposed to extreme conditions.

Working Principles

The AT27LV256A-12JI chip operates based on the principles of programmable read-only memory. It uses a combination of address inputs, control signals, and data inputs/outputs to store and retrieve data. When the chip is enabled and the appropriate address is provided, the stored data can be accessed by the system.

Detailed Application Field Plans

The AT27LV256A-12JI chip finds applications in various fields, including:

1. Embedded Systems: