AT27C2048-90PU

Product Overview

Category: Integrated Circuit (IC)

Use: The AT27C2048-90PU is a high-performance electrically erasable programmable read-only memory (EEPROM) IC. It is commonly used for non-volatile storage of data in various electronic devices.

Characteristics: - High storage capacity - Fast access and retrieval times - Electrically erasable and reprogrammable - Low power consumption - Durable and reliable

Package: The AT27C2048-90PU is available in a 32-pin plastic dual in-line package (PDIP). This package provides protection to the integrated circuit and facilitates easy integration into electronic circuits.

Essence: The essence of the AT27C2048-90PU lies in its ability to store large amounts of data reliably and securely, while allowing for easy modification when required.

Packaging/Quantity: The AT27C2048-90PU is typically packaged in reels or tubes, with each reel or tube containing a specific quantity of ICs. The exact packaging and quantity may vary depending on the manufacturer.

Specifications

• Storage Capacity: 2,048 kilobits (256 kilobytes)
• Operating Voltage: 4.5V to 5.5V
• Access Time: 90 nanoseconds
• Erase/Write Cycle Endurance: 10,000 cycles
• Data Retention: 20 years
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The AT27C2048-90PU has a total of 32 pins, which are assigned specific functions as follows:

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

Functional Features

• High-speed access and retrieval of stored data.
• Electrically erasable and reprogrammable, allowing for easy modification of stored data.
• Low power consumption, making it suitable for battery-powered devices.
• Durable and reliable, with a long data retention period.
• Compatibility with various microcontrollers and electronic systems.

Advantages and Disadvantages

Advantages: - Large storage capacity - Fast access and retrieval times - Easy to erase and reprogram - Low power consumption - Reliable and durable

Disadvantages: - Limited write endurance (10,000 cycles) - Requires external programming equipment for initial programming - Relatively higher cost compared to other memory technologies

Working Principles

The AT27C2048-90PU operates based on the principle of electrically altering the state of memory cells to store and retrieve data. It utilizes a combination of address inputs, control signals, and data inputs/outputs to read, write, and erase data stored in its memory array.

Detailed Application Field Plans

The AT27C2048-90PU finds applications in various electronic devices and systems, including but not limited to: - Microcontrollers - Embedded systems - Automotive electronics - Industrial control systems - Communication equipment - Consumer electronics

Alternative Models

1. AT28C256-15PU: 256-kilobit EEPROM IC with a 150 nanosecond access time.
2. AT29C010A-12PC: 1-megabit EEPROM IC with a 120 nanosecond access time.
3. AT25SF041-SSHD-T: 4-megabit SPI Serial Flash Memory IC with a 50 megahertz clock frequency.

These alternative models offer similar functionality and can be considered as substitutes for the