AT28C64B-15TU

Product Overview

Category

AT28C64B-15TU 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, embedded systems, and consumer electronics.

Characteristics

• Non-volatile: The data stored in AT28C64B-15TU remains even when power is removed.
• Electrically erasable: The memory can be erased and reprogrammed electronically.
• High storage capacity: AT28C64B-15TU has a storage capacity of 64 kilobits (8 kilobytes).
• Low power consumption: This chip operates at low power levels, making it suitable for battery-powered devices.

Package

AT28C64B-15TU is available in a standard 28-pin dual in-line package (DIP).

Essence

The essence of AT28C64B-15TU lies in its ability to store and retrieve digital information reliably and efficiently.

Packaging/Quantity

This product is typically packaged in reels or tubes, with each containing a specific quantity of AT28C64B-15TU chips. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Supply voltage: 2.7V to 5.5V
• Operating temperature range: -40°C to +85°C
• Access time: 150 nanoseconds
• Endurance: 10,000 write/erase cycles
• Data retention: 10 years

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. VSS: Ground
10. OE: Output enable
11. CE: Chip enable
12. WE: Write enable
13. I/O0: Data input/output
14. I/O1: Data input/output
15. I/O2: Data input/output
16. I/O3: Data input/output
17. I/O4: Data input/output
18. I/O5: Data input/output
19. I/O6: Data input/output
20. I/O7: Data input/output
21. NC: No connection
22. NC: No connection
23. NC: No connection
24. NC: No connection
25. NC: No connection
26. NC: No connection
27. NC: No connection
28. VCC: Power supply

Functional Features

• Byte-wise programmable: AT28C64B-15TU allows individual bytes to be programmed or erased.
• High-speed operation: The chip offers fast read and write access times, enabling efficient data transfer.
• Automatic page write: This feature simplifies the programming process by allowing multiple bytes to be written at once.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data retention even during power loss.
• Electrically erasable capability eliminates the need for external erasing equipment.
• High storage capacity accommodates a wide range of applications.
• Low power consumption prolongs battery life in portable devices.

Disadvantages

• Limited endurance: The chip has a finite number of write/erase cycles before it may become unreliable.
• Relatively slower access time compared to some other memory technologies.
• Higher cost per bit compared to certain alternative memory solutions.

Working Principles

AT28C64B-15TU utilizes a floating-gate transistor structure to store and retrieve digital data. The memory cells consist of transistors that can be electrically programmed or erased by applying specific voltage levels to the control pins. When reading data, the appropriate address is provided, and the stored information is retrieved from the selected memory location.

Detailed Application Field Plans

AT28C64B-15TU finds applications in various fields, including: 1. Microcontrollers: Used for program storage in microcontroller-based systems. 2. Embedded systems: Provides non-volatile memory for storing configuration data and firmware. 3. Consumer electronics: Used in devices such as smart TVs, set-top boxes, and gaming consoles for data storage purposes.

Detailed and Complete Alternative Models

1. AT28C256-15PU: A higher-capacity EEPROM chip with 256 kilobits (32 kilobytes) of storage.
2. AT24C02C-SSHM-T: A smaller EEPROM chip with 2 kilobits (256 bytes) of storage, suitable for compact applications.
3. AT93C46D-PU: A serial EEPROM chip with 1 kilobit (128 bytes)