AT27C512R-12PC

Product Overview

Category

AT27C512R-12PC 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.
• Programmable: Users can write data onto the chip using specific programming techniques.
• Read-only: Once programmed, the data cannot be modified or erased.

Package

AT27C512R-12PC is available in a 28-pin plastic dual in-line package (PDIP).

Essence

The essence of this PROM chip lies in its ability to provide non-volatile storage for critical data in various electronic applications.

Packaging/Quantity

AT27C512R-12PC is typically packaged in tubes or trays, with quantities varying based on customer requirements.

Specifications

• Memory Size: 512 kilobits (64 kilobytes)
• Access Time: 120 nanoseconds
• Operating Voltage: 5 volts
• Temperature Range: -40°C to +85°C
• Programming Method: Parallel
• Erase Method: Not applicable (read-only)

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. VPP (Programming Voltage)
14. DQ0 (Data Output 0)
15. DQ1 (Data Output 1)
16. DQ2 (Data Output 2)
17. DQ3 (Data Output 3)
18. DQ4 (Data Output 4)
19. DQ5 (Data Output 5)
20. DQ6 (Data Output 6)
21. DQ7 (Data Output 7)
22. VCC (Power Supply)
23. /PGM (Program Mode)
24. /BYTE (Byte Mode)
25. A8
26. A9
27. A11
28. A13

Functional Features

• High-speed access: The chip offers fast data retrieval with a low access time of 120 nanoseconds.
• Wide temperature range: It can operate reliably in extreme temperature conditions, ranging from -40°C to +85°C.
• Low power consumption: AT27C512R-12PC is designed to minimize power usage, making it suitable for battery-powered devices.
• Easy integration: The chip can be easily integrated into existing electronic systems due to its standard pin configuration and programming method.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data retention even during power loss.
• High-speed access allows for quick retrieval of stored information.
• Wide temperature range enables reliable operation in various environments.
• Low power consumption prolongs battery life in portable devices.

Disadvantages

• Data cannot be modified or erased once programmed onto the chip.
• Limited storage capacity compared to other memory technologies.
• Requires external programming equipment for initial data programming.

Working Principles

AT27C512R-12PC operates based on the principle of electrical charge trapping. During programming, an electric charge is applied to specific memory cells, altering their electrical properties and storing data. When reading, the chip detects the presence or absence of charge in each memory cell, translating it into binary data.

Detailed Application Field Plans

AT27C512R-12PC 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 settings, and firmware updates. 5. Consumer electronics: Enables permanent storage of data in devices like gaming consoles and set-top boxes.

Detailed and Complete Alternative Models

1. AT28C256-15PU: 256 kilobit parallel EEPROM with a 150 nanosecond access time.
2. AM29F040B-90JC: 4 megabit flash memory chip with a 90 nanosecond access time.
3. M27C4001-10F1: 4 megabit EPROM with a 100 nanosecond access time.

These alternative models offer similar functionality to AT27C512R-12PC but may differ in capacity, access time, or erase method.

In conclusion, AT27C512R-