AT27C020-15TC

Product Overview

Category

AT27C020-15TC belongs to the category of programmable read-only memory (PROM) chips.

Use

This product is primarily used for storing data that needs to be permanently written and cannot be modified or erased. It is commonly employed in applications where non-volatile memory is required.

Characteristics

• Non-volatile: The stored data remains intact even when power is removed.
• High density: The chip has a capacity of 2 megabits (256 kilobytes).
• Fast access time: The access time is 150 nanoseconds, allowing for quick retrieval of data.
• Low power consumption: The chip operates at low power levels, making it suitable for battery-powered devices.

Package

AT27C020-15TC is available in a 32-pin plastic package.

Essence

The essence of this product lies in its ability to provide reliable and permanent storage of data in electronic systems.

Packaging/Quantity

AT27C020-15TC 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

• Capacity: 2 megabits (256 kilobytes)
• Access Time: 150 nanoseconds
• Supply Voltage: 5 volts
• Operating Temperature Range: -40°C to +85°C
• Pin Count: 32

Detailed Pin Configuration

1. A16
2. A14
3. A12
4. A7
5. A6
6. A5
7. A4
8. A3
9. A2
10. A1
11. A0
12. VPP
13. WE#
14. OE#
15. CE#
16. I/O0
17. I/O1
18. I/O2
19. I/O3
20. I/O4
21. I/O5
22. I/O6
23. I/O7
24. VCC
25. GND
26. NC
27. A15
28. A13
29. A8
30. A9
31. A11
32. A10

Functional Features

• Easy programming: The chip can be programmed using standard PROM programming equipment.
• Non-volatile storage: The data stored in the chip remains intact even when power is removed.
• High-speed access: The fast access time of 150 nanoseconds allows for quick retrieval of data.
• Low power consumption: The chip operates at low power levels, making it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages

• Reliable and permanent storage of data.
• High density allows for storing large amounts of information.
• Fast access time enables quick data retrieval.
• Low power consumption prolongs battery life in portable devices.

Disadvantages

• Data cannot be modified or erased once programmed.
• Limited capacity compared to other memory technologies.
• Higher cost per bit compared to some other memory options.

Working Principles

AT27C020-15TC utilizes a technology called floating-gate MOS (metal-oxide-semiconductor) to store data. The programming process involves applying electrical charges to specific memory cells, which alters their threshold voltage and determines whether they represent a "0" or a "1". Once programmed, the data remains stored in the chip until it is replaced or overwritten.

Detailed Application Field Plans

AT27C020-15TC finds applications in various fields, including: 1. Embedded systems: Used for firmware storage in microcontrollers and other embedded devices. 2. Automotive electronics: Employed for storing critical data such as calibration parameters and firmware in automotive control units. 3. Industrial automation: Used for storing configuration data and program code in industrial control systems. 4. Consumer electronics: Utilized in devices such as gaming consoles, set-top boxes, and digital cameras for non-volatile storage of firmware and data.

Detailed and Complete Alternative Models

1. AT27C010-15PC
2. AT27C040-15PU
3. AT27LV010A-15JC
4. AT27LV020A-15JC
5. AT27LV040A-15JC

These alternative models offer similar functionality and characteristics to AT27C020-15TC, but may differ in capacity, package type, or other specifications.

In conclusion, AT27C020-15TC is a programmable read-only memory chip that provides reliable and permanent storage of data. With its high density, fast access time, and low power consumption, it finds applications in various fields such as embedded systems, automotive electronics, industrial automation, and consumer electronics. While it has limitations in terms of capacity and flexibility compared to other memory technologies, it offers advantages in terms of non-vol