AT27C2048-12JC

Product Overview

Category

AT27C2048-12JC belongs to the category of programmable read-only memory (PROM) chips.

Use

This chip is commonly used for storing permanent data that needs to be retained even when power is turned off. It allows users to program and store data, which can then be accessed by a microcontroller or other electronic devices.

Characteristics

• Non-volatile: The stored data remains intact even without power.
• High storage capacity: The AT27C2048-12JC has a capacity of 2,048 kilobits (256 kilobytes).
• Fast access time: With a speed of 120 nanoseconds, it provides quick data retrieval.
• Low power consumption: The chip operates on low power, making it suitable for battery-powered devices.

Package

The AT27C2048-12JC 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 and retain data reliably, making it an essential component in various electronic systems.

Packaging/Quantity

The AT27C2048-12JC is typically packaged in reels or tubes, with each containing a specific quantity of chips. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Memory Type: Programmable Read-Only Memory (PROM)
• Organization: 256K x 8 bits
• Access Time: 120 ns
• Supply Voltage: 5V ±10%
• Operating Temperature Range: -40°C to +85°C
• Package Type: 32-pin PLCC

Detailed Pin Configuration

1. A16
2. A15
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/O7
17. I/O6
18. I/O5
19. I/O4
20. I/O3
21. I/O2
22. I/O1
23. I/O0
24. GND
25. NC
26. NC
27. NC
28. NC
29. NC
30. NC
31. NC
32. VCC

Functional Features

• Easy programming: The AT27C2048-12JC can be programmed using standard PROM programming equipment.
• High reliability: The chip offers excellent data retention and endurance, ensuring long-term reliability.
• Compatibility: It is compatible with a wide range of microcontrollers and electronic devices.
• Low power consumption: The chip operates on low power, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• High storage capacity allows for storing large amounts of data.
• Fast access time enables quick retrieval of stored information.
• Low power consumption makes it suitable for portable devices.

Disadvantages

• Once programmed, the data cannot be modified or erased.
• Limited write cycles compared to other types of memory.
• Relatively higher cost compared to some alternative memory technologies.

Working Principles

The AT27C2048-12JC uses a technology called floating-gate MOS (FGMOS) to store data. When programming, electrical charges are trapped in the floating gate, representing the desired data. These charges remain trapped even when power is removed, allowing the data to be retained.

Detailed Application Field Plans

The AT27C2048-12JC finds applications in various fields, including: 1. Embedded systems: Used for firmware storage in microcontrollers and other embedded devices. 2. Automotive electronics: Stores critical data such as calibration values and configuration settings. 3. Industrial control systems: Provides non-volatile memory for storing program code and configuration data. 4. Medical devices: Used for storing patient data, device configurations, and firmware updates.

Detailed and Complete Alternative Models

1. AT28C256-15PU: 256K (32K x 8) Parallel EEPROM
2. AM29F040B-90JC: 512K (64K x 8) CMOS Flash Memory
3. M27C4001-10F1: 4M (512K x 8) UV EPROM

These alternative models offer similar functionality and can be used as substitutes for the AT27C2048-12JC depending on specific requirements.

In conclusion, the AT27C2048-12JC is a programmable read-only memory chip that provides reliable data storage with high capacity and fast access time. Its compatibility, low power consumption, and wide range