AT27C1024-90PC

Product Overview

Category

AT27C1024-90PC belongs to the category of programmable read-only memory (PROM) chips.

Use

This product is commonly used in electronic devices for storing permanent data that cannot be modified or erased. It provides non-volatile memory storage, making it ideal for applications where data integrity is crucial.

Characteristics

• Non-volatile: The stored data remains intact even when power is removed.
• High capacity: The AT27C1024-90PC has a capacity of 1,048,576 bits (128 kilobytes).
• Fast access time: With a speed rating of 90 nanoseconds, it offers quick data retrieval.
• Durable: The chip is designed to withstand harsh environmental conditions and has a long lifespan.

Package

The AT27C1024-90PC is available in a 32-pin plastic dual in-line package (PDIP). This package type ensures easy integration into various electronic circuits.

Essence

The essence of the AT27C1024-90PC lies in its ability to provide reliable and secure non-volatile memory storage for electronic devices.

Packaging/Quantity

This product is typically packaged in tubes or trays, with each containing a specific quantity of chips. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Capacity: 1,048,576 bits (128 kilobytes)
• Access Time: 90 nanoseconds
• Supply Voltage: 5V
• Operating Temperature Range: -40°C to +85°C
• Package Type: 32-pin PDIP

Detailed Pin Configuration

The AT27C1024-90PC features a 32-pin configuration. The pins are assigned specific functions as follows:

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

Functional Features

• Non-volatile storage: The AT27C1024-90PC retains data even when power is disconnected.
• High-speed access: With an access time of 90 nanoseconds, it ensures quick retrieval of stored information.
• Easy integration: The 32-pin PDIP package allows for straightforward integration into electronic circuits.
• Durable design: The chip is built to withstand challenging environmental conditions, ensuring long-term reliability.

Advantages and Disadvantages

Advantages

• Reliable non-volatile memory storage
• Fast access time
• High capacity
• Durable design

Disadvantages

• Data cannot be modified or erased once programmed
• Limited storage capacity compared to other memory technologies

Working Principles

The AT27C1024-90PC operates on the principle of electrical charge trapping. During programming, data is stored by applying a high voltage to specific memory cells, which traps charges in the floating gate. These trapped charges represent the stored information. When reading data, the chip applies appropriate voltages to access the desired memory location and retrieve the stored information.

Detailed Application Field Plans

The AT27C1024-90PC finds applications in various electronic devices that require non-volatile memory storage. Some common application fields include:

1. Embedded Systems: Used for firmware storage in microcontrollers and other embedded systems.
2. Automotive Electronics: Provides secure storage for critical data in automotive applications such as engine control units (ECUs) and infotainment systems.
3. Industrial Control Systems: Used for storing configuration data and program code in industrial automation and control systems.
4. Medical Devices: Provides reliable storage for patient data and device settings in medical equipment.
5. Consumer Electronics: Used in devices like