AT27C512R-12TI

Product Overview

Category

AT27C512R-12TI belongs to the category of programmable read-only memory (PROM) chips.

Use

This product is commonly used for storing permanent data or code that needs to be retained even when power is turned off. It finds applications in various electronic devices such as computers, microcontrollers, and consumer electronics.

Characteristics

• Non-volatile: The stored data remains intact even without power.
• Programmable: The memory can be written to once using specialized programming equipment.
• Read-only: The stored data cannot be modified or erased.

Package

AT27C512R-12TI is available in a standard 28-pin dual in-line package (DIP).

Essence

The essence of this product lies in its ability to provide non-volatile storage for critical data or code in electronic systems.

Packaging/Quantity

AT27C512R-12TI 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

• Part Number: AT27C512R-12TI
• Memory Size: 512 kilobits (64 kilobytes)
• Access Time: 120 nanoseconds
• Operating Voltage: 5 volts
• Temperature Range: -40°C to +85°C
• Data Retention: 20 years

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. 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)
24. /BYTE (Byte/Word Organization)
25. A8
26. A9
27. A11
28. GND (Ground)

Functional Features

• High-speed access: The AT27C512R-12TI offers fast access times, allowing for efficient retrieval of stored data.
• Low power consumption: This PROM chip is designed to minimize power usage, making it suitable for battery-powered devices.
• Reliable data retention: The non-volatile nature of the memory ensures that the stored data remains intact for extended periods.
• Easy integration: The standard pin configuration and package make it compatible with various electronic systems.

Advantages and Disadvantages

Advantages

• Non-volatile storage
• Fast access times
• Low power consumption
• Wide temperature range
• Long data retention period

Disadvantages

• Data cannot be modified or erased once programmed
• Limited storage capacity compared to other memory types
• Requires specialized programming equipment for initial data programming

Working Principles

AT27C512R-12TI utilizes a technology known as floating-gate MOSFET (metal-oxide-semiconductor field-effect transistor). The memory cells within the chip consist of transistors that can be electrically programmed to store data. Once programmed, the stored data remains unchanged until the next programming cycle.

Detailed Application Field Plans

The AT27C512R-12TI PROM chip finds applications in various fields, including:

1. Embedded Systems: Used for storing firmware or boot code in microcontrollers and embedded devices.
2. Computer Systems: Employed in legacy systems where non-volatile storage is required for critical data or BIOS code.
3. Consumer Electronics: Integrated into devices like gaming consoles, set-top boxes, and audio equipment for storing system software or configuration data.

Detailed and Complete Alternative Models

1. AT27C256R-12TI: A lower capacity variant with 256 kilobits of memory.
2. AT27C010-12PC: Offers a higher capacity of 1 megabit (128 kilobytes) with similar specifications.
3. AT28C64B-15PU: Provides a smaller capacity of 64 kilobits (8 kilobytes) but operates at a faster access time.

These alternative models offer different memory capacities and access times to cater to specific application requirements.

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