M27C4002-12F1

Product Overview

Category

M27C4002-12F1 belongs to the category of programmable read-only memory (PROM) chips.

Use

This chip is primarily used for storing data that needs to be permanently retained, even when power is turned off. It is commonly employed in various electronic devices such as computers, microcontrollers, and consumer electronics.

Characteristics

• Non-volatile: The M27C4002-12F1 retains data even without power.
• Programmable: The chip can be programmed with specific data before being installed in a device.
• Read-only: Once programmed, the data stored in the chip cannot be modified.

Package

The M27C4002-12F1 is available in a 32-pin dual in-line package (DIP), which is a common form factor for integrated circuits.

Essence

The essence of the M27C4002-12F1 lies in its ability to provide non-volatile storage for critical data in electronic systems.

Packaging/Quantity

The chip is typically sold in reels or tubes containing multiple units. The exact quantity may vary depending on the supplier.

Specifications

• Part Number: M27C4002-12F1
• Memory Capacity: 4 Megabits (512 Kilobytes)
• Access Time: 120 nanoseconds
• Operating Voltage: 5 volts
• Organization: 512K x 8 bits
• Programming Voltage: 12.75 to 14.25 volts
• Erase Voltage: 21 volts
• Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The M27C4002-12F1 has a total of 32 pins, each serving a specific purpose. The pin configuration is as follows:

1. A16 - Address Input
2. A15 - Address Input
3. A12 - Address Input
4. A7 - Address Input
5. A6 - Address Input
6. A5 - Address Input
7. A4 - Address Input
8. A3 - Address Input
9. A2 - Address Input
10. A1 - Address Input
11. A0 - Address Input
12. VPP - Programming Voltage Supply
13. A14 - Address Input
14. A13 - Address Input
15. A8 - Address Input
16. A9 - Address Input
17. A11 - Address Input
18. A10 - Address Input
19. CE - Chip Enable
20. OE - Output Enable
21. WE - Write Enable
22. DQ0 - Data Input/Output
23. DQ1 - Data Input/Output
24. DQ2 - Data Input/Output
25. DQ3 - Data Input/Output
26. DQ4 - Data Input/Output
27. DQ5 - Data Input/Output
28. DQ6 - Data Input/Output
29. DQ7 - Data Input/Output
30. VCC - Power Supply
31. GND - Ground
32. NC - No Connection

Functional Features

The M27C4002-12F1 offers the following functional features:

• High-speed access: The chip provides fast access to stored data with a low access time of 120 nanoseconds.
• Low power consumption: It operates on a standard 5-volt power supply, ensuring efficient power usage.
• Easy integration: The chip can be easily integrated into various electronic systems due to its standard pin configuration and package.

Advantages and Disadvantages

Advantages

• Non-volatile storage: The chip retains data even without power, ensuring data integrity.
• High-speed access: The low access time allows for quick retrieval of stored information.
• Easy integration: The standard pin configuration and package make it compatible with a wide range of devices.

Disadvantages

• Limited storage capacity: With a capacity of 4 Megabits, the chip may not be suitable for applications requiring larger memory sizes.
• Read-only nature: Once programmed, the data cannot be modified, limiting its flexibility in certain scenarios.

Working Principles

The M27C4002-12F1 utilizes a combination of electronic circuits to store and retrieve data. When powered on, the chip enables the reading of stored data based on the address provided. The data is accessed through the appropriate pins and can be used by the connected device. The chip does not require power to retain the stored data, making it non-volatile.

Detailed Application Field Plans

The M27C4002-12F1 finds application in various fields, including:

1. Computer systems: Used for storing firmware, BIOS, or other critical data.
2. Microcontrollers: Employed to store program code or calibration data. 3