AT27C512R-12TC

Product Overview

Category

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

Use

This product is commonly used for storing permanent data that needs to be retained even when power is turned off. It allows users to write data onto the chip during manufacturing, but once programmed, the data cannot be changed or erased.

Characteristics

• Non-volatile: The stored data remains intact even without power.
• High storage capacity: The AT27C512R-12TC has a capacity of 512 kilobits (64 kilobytes).
• Fast access time: The chip operates at a speed of 120 nanoseconds.
• Low power consumption: It requires minimal power to operate efficiently.

Package and Quantity

The AT27C512R-12TC is available in a 28-pin dual in-line package (DIP). Each package contains one chip.

Specifications

• Memory Capacity: 512 kilobits (64 kilobytes)
• Access Time: 120 nanoseconds
• Supply Voltage: 5 volts
• Operating Temperature Range: -40°C to +85°C
• Package Type: 28-pin DIP

Pin Configuration

The AT27C512R-12TC has a total of 28 pins, each serving a specific function. The pin configuration is as follows:

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. NC (No Connection)
15. Q7
16. Q6
17. Q5
18. Q4
19. Q3
20. Q2
21. Q1
22. Q0
23. VCC (Supply Voltage)
24. GND (Ground)
25. A8
26. A9
27. A11
28. A13

Functional Features

The AT27C512R-12TC offers the following functional features:

• High-speed access: The chip allows for fast retrieval of stored data.
• Non-volatile storage: Data remains intact even without power.
• Easy integration: Compatible with various microcontrollers and systems.
• Reliable performance: Designed to withstand harsh operating conditions.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention.
• High storage capacity for extensive data storage needs.
• Fast access time enables quick retrieval of information.
• Low power consumption for energy-efficient operation.

Disadvantages

• Inability to modify or erase programmed data.
• Limited storage capacity compared to other memory technologies.
• Relatively higher cost per kilobit compared to alternative memory options.

Working Principles

The AT27C512R-12TC operates based on the principle of electrical charge trapping. During programming, a voltage is applied to specific pins, causing electrons to be trapped in the floating gate region of the memory cells. These trapped charges represent the stored data, which can be read by applying appropriate voltages to the corresponding pins.

Application Field Plans

The AT27C512R-12TC finds applications in various fields, including: - Embedded systems - Automotive electronics - Industrial control systems - Medical devices - Consumer electronics

Alternative Models

Several alternative models are available that offer similar functionality to the AT27C512R-12TC. Some notable alternatives include: - AT28C64B-15PU - AM27C256-120DC - M27C512-12F1

These models provide comparable storage capacity, access time, and package options.

In conclusion, the AT27C512R-12TC is a programmable read-only memory chip with a high storage capacity of 512 kilobits. It offers fast access times, low power consumption, and reliable performance. While it has limitations in terms of data modification and storage capacity compared to other memory technologies, it finds applications in various fields such as embedded systems, automotive electronics, and industrial control systems. Alternative models like AT28C64B-15PU, AM27C256-120DC, and M27C512-12F1 can be considered for similar requirements.