AT27C020-12JI

Product Overview

Category

AT27C020-12JI belongs to the category of programmable read-only memory (PROM) chips.

Use

It is primarily used for storing data that needs to be permanently stored and cannot be modified or erased. PROM chips are commonly used in various electronic devices, such as computers, consumer electronics, and automotive applications.

Characteristics

• Non-volatile: The data stored in AT27C020-12JI remains intact even when power is turned off.
• High storage capacity: This chip has a storage capacity of 2 megabits (256 kilobytes).
• Fast access time: It operates at a speed of 120 nanoseconds, allowing for quick retrieval of data.
• Low power consumption: AT27C020-12JI is designed to consume minimal power during operation.

Package

AT27C020-12JI is available in a 32-pin plastic package.

Essence

The essence of AT27C020-12JI lies in its ability to provide reliable and non-volatile storage for critical data in electronic systems.

Packaging/Quantity

This chip is typically packaged in tubes or trays, with each tube or tray containing a specific quantity of AT27C020-12JI chips. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Manufacturer: Atmel Corporation
• Part Number: AT27C020-12JI
• Memory Type: Programmable Read-Only Memory (PROM)
• Capacity: 2 Megabits (256 Kilobytes)
• Access Time: 120 Nanoseconds
• Supply Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Package Type: 32-pin Plastic Package

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. /OE (Output Enable)
13. /WE (Write Enable)
14. VSS (Ground)
15. NC (No Connection)
16. Q7
17. Q6
18. Q5
19. Q4
20. Q3
21. Q2
22. Q1
23. Q0
24. VCC (Power Supply)
25. CE (Chip Enable)
26. A14
27. A13
28. A8
29. A9
30. A11
31. A10
32. /PGM (Program)

Functional Features

• Non-volatile storage: AT27C020-12JI retains data even when power is disconnected.
• High-speed access: The chip allows for quick retrieval of stored data with a fast access time of 120 nanoseconds.
• Easy integration: It can be easily integrated into various electronic systems due to its standard pin configuration and package.

Advantages

• Reliable data storage: The non-volatile nature of PROM ensures that the stored data remains intact over long periods.
• Fast access time: AT27C020-12JI provides quick access to stored data, enhancing overall system performance.
• Low power consumption: The chip is designed to consume minimal power during operation, making it energy-efficient.

Disadvantages

• Lack of flexibility: Once programmed, the data in AT27C020-12JI cannot be modified or erased, limiting its adaptability in certain applications.
• Limited storage capacity: With a capacity of 2 megabits, this chip may not be suitable for applications requiring larger memory sizes.

Working Principles

AT27C020-12JI operates based on the principle of electrical programming. The data is programmed into the chip during the manufacturing process and remains permanently stored until the chip is replaced.

Detailed Application Field Plans

AT27C020-12JI finds applications in various fields, including: 1. Computer systems: Used for storing firmware, BIOS, and other critical system data. 2. Consumer electronics: Utilized in devices like gaming consoles, set-top boxes, and digital cameras for storing firmware and configuration data. 3. Automotive industry: Employed in automotive electronic control units (ECUs) to store calibration data, firmware, and diagnostic information.

Detailed and Complete Alternative Models

1. AT27C010-12PC
2. AT27C040-90PU
3. AT27C080-15PU
4. AT27C256R-45PU
5. AT27C512R-70PU

These alternative models offer different storage capacities, access times, and package types, providing flexibility to suit specific application requirements.

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