AT28HC64B-70TU

Product Overview

Category

AT28HC64B-70TU belongs to the category of non-volatile memory devices.

Use

This product is primarily used for storing and retrieving digital information in electronic systems.

Characteristics

• Non-volatile: The stored data remains intact even when power is removed.
• High capacity: The AT28HC64B-70TU has a storage capacity of 64 kilobits (8 kilobytes).
• High-speed operation: It operates at a speed of 70 nanoseconds, allowing for fast data access.
• Low power consumption: The device is designed to minimize power usage, making it suitable for battery-powered applications.

Package

The AT28HC64B-70TU is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of this product lies in its ability to provide reliable and non-volatile storage for electronic systems.

Packaging/Quantity

The AT28HC64B-70TU is typically packaged in reels or tubes, with a quantity of 250 units per reel/tube.

Specifications

• Memory Type: Electrically Erasable Programmable Read-Only Memory (EEPROM)
• Organization: 8,192 words x 8 bits
• Supply Voltage: 2.7V - 5.5V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: 10 years
• Endurance: 100,000 write cycles

Detailed Pin Configuration

The AT28HC64B-70TU has a total of 28 pins. The pin configuration is as follows:

1. A0
2. A1
3. A2
4. A3
5. A4
6. A5
7. A6
8. A7
9. VCC
10. A8
11. A9
12. A10
13. A11
14. /OE (Output Enable)
15. /WE (Write Enable)
16. /CE (Chip Enable)
17. I/O0
18. I/O1
19. I/O2
20. I/O3
21. I/O4
22. I/O5
23. I/O6
24. I/O7
25. NC (No Connection)
26. GND
27. NC
28. NC

Functional Features

• Byte-wise Read and Write: The AT28HC64B-70TU allows for individual byte-level read and write operations.
• Hardware Data Protection: The device features a hardware protection mechanism to prevent accidental writes.
• Software Data Protection: Additional software-based protection mechanisms can be implemented to enhance data security.
• High-Speed Operation: With a 70 nanosecond access time, the device enables fast data retrieval.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• High storage capacity for various applications.
• Low power consumption extends battery life in portable devices.
• Fast access time enhances system performance.

Disadvantages

• Limited endurance compared to other memory technologies.
• Relatively higher cost per bit compared to some alternatives.
• Requires additional circuitry for write and erase operations.

Working Principles

The AT28HC64B-70TU utilizes EEPROM technology to store data. It consists of a grid of memory cells, each capable of holding one bit of information. These cells can be electrically programmed and erased using specific voltage levels. When reading data, the stored charge in each cell is detected and interpreted as either a logic high or low.

Detailed Application Field Plans

The AT28HC64B-70TU finds applications in various electronic systems, including but not limited to: - Microcontrollers - Embedded systems - Industrial control systems - Automotive electronics - Consumer electronics

Detailed and Complete Alternative Models

1. AT28C64B-15PU: Similar to AT28HC64B-70TU, but operates at a slower speed of 150 nanoseconds.
2. AT28HC256-90SU: Higher capacity EEPROM with 256 kilobits (32 kilobytes) and a faster access time of 90 nanoseconds.
3. AT28C16-15PC: Lower capacity EEPROM with 16 kilobits (2 kilobytes) and a slower access time of 150 nanoseconds.

These alternative models offer different specifications and can be chosen based on specific application requirements.

In conclusion, the AT28HC64B-70TU is a non-volatile memory device that provides reliable storage for electronic systems. With its high capacity, fast operation, and low power consumption, it is suitable for a wide range of applications. However, it has limitations in terms of endurance and cost per bit. Understanding its working principles and considering alternative models