AT28C17E-20JI

Product Overview

Category

AT28C17E-20JI belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

This product is commonly used for non-volatile storage in various electronic devices, such as microcontrollers, computers, and consumer electronics.

Characteristics

• Electrically erasable: The AT28C17E-20JI can be erased and reprogrammed electronically, making it convenient for updating data.
• Non-volatile: The stored data remains even when power is removed.
• High capacity: This chip has a capacity of 17,280 bits, allowing for ample storage space.
• Low power consumption: The AT28C17E-20JI operates efficiently, consuming minimal power.
• Fast access time: With a speed of 200 nanoseconds, this chip provides quick data retrieval.

Package

The AT28C17E-20JI is available in a 32-pin PLCC (Plastic Leaded Chip Carrier) package.

Essence

This EEPROM chip is designed to provide reliable and flexible non-volatile memory storage for electronic devices.

Packaging/Quantity

The AT28C17E-20JI is typically packaged in reels or tubes, with a quantity of 100 units per package.

Specifications

• Memory Capacity: 17,280 bits
• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Access Time: 200 ns
• Data Retention: 10 years
• Erase/Write Cycles: 100,000 cycles

Detailed Pin Configuration

The AT28C17E-20JI has a total of 32 pins, each serving a specific function. Here is the detailed pin configuration:

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 Input
18. /WE: Write Enable Input
19. VCC: Supply Voltage
20. GND: 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. /CE: Chip Enable Input
30. /BYTE: Byte/Word Organization Input
31. /WP: Write Protect Input
32. /ACC: Access Time Control Input

Functional Features

• High-speed operation: The AT28C17E-20JI offers fast access times, allowing for efficient data retrieval.
• Flexible programming: This chip supports both byte and word programming modes, providing versatility in storing data.
• Low power consumption: With its low power requirements, the AT28C17E-20JI helps conserve energy in electronic devices.
• Reliable data retention: The stored data remains intact for up to 10 years, ensuring long-term reliability.

Advantages and Disadvantages

Advantages

• Electrically erasable and reprogrammable
• Non-volatile memory
• High storage capacity
• Low power consumption
• Fast access time

Disadvantages

• Limited erase/write cycles (100,000 cycles)
• Requires careful handling to prevent damage

Working Principles

The AT28C17E-20JI operates based on the principles of EEPROM technology. It utilizes a grid of floating-gate transistors to store data. When programming or erasing, electrical charges are applied to specific cells within the chip, altering the charge stored in the floating gates. This allows for the storage and modification of data without the need for physical changes.

Detailed Application Field Plans

The AT28C17E-20JI finds applications in various fields, including: 1. Microcontrollers: Used for storing firmware, configuration data, and calibration values. 2. Computers: Employed in BIOS chips for storing system settings and boot code. 3. Consumer Electronics: Utilized in devices such as smart TVs, set-top boxes, and digital cameras for non-volatile data storage