AT28HC64B-70JU

Product Overview

Category

AT28HC64B-70JU belongs to the category of non-volatile memory integrated circuits.

Use

It is primarily used for storing and retrieving digital information in electronic devices.

Characteristics

• Non-volatile: Retains data even when power is removed.
• High capacity: 64 kilobits (8 kilobytes) of storage.
• High-speed operation: Operates at a speed of 70 nanoseconds.
• Low power consumption: Optimized for energy efficiency.
• Reliable: Designed for long-term data retention.

Package

AT28HC64B-70JU is available in a standard 32-pin plastic J-lead chip carrier package.

Essence

The essence of AT28HC64B-70JU lies in its ability to provide reliable and high-capacity non-volatile memory storage for various electronic devices.

Packaging/Quantity

This product is typically packaged in reels or tubes, with each containing a specific quantity of AT28HC64B-70JU chips. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

• Memory Type: EEPROM (Electrically Erasable Programmable Read-Only Memory)
• Organization: 8K 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-70JU has a total of 32 pins, each serving a specific function. Here is a 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. CE: Chip Enable
11. OE: Output 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. VCC: Supply Voltage
26. NC: No Connection
27. NC: No Connection
28. NC: No Connection
29. NC: No Connection
30. NC: No Connection
31. NC: No Connection
32. NC: No Connection

Functional Features

• High-speed read and write operations.
• Low power consumption for energy efficiency.
• Non-volatile memory retains data even without power.
• Easy integration into various electronic devices.
• Reliable and durable design for long-term data storage.

Advantages and Disadvantages

Advantages

• High capacity storage for a wide range of applications.
• Fast operation speed enhances overall device performance.
• Low power consumption prolongs battery life in portable devices.
• Non-volatile memory ensures data integrity during power interruptions.
• Reliable design with high endurance and long data retention.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Relatively higher cost per unit compared to some alternatives.
• Requires additional circuitry for interfacing with the host device.

Working Principles

AT28HC64B-70JU utilizes EEPROM technology to store and retrieve digital information. It employs a combination of electrically controlled floating gate transistors and memory cells to achieve non-volatile data storage. The memory cells are organized in an 8K x 8-bit configuration, allowing efficient addressing and retrieval of data. The chip's control pins enable read, write, and output operations, while the power supply ensures proper functioning of the integrated circuit.

Detailed Application Field Plans

AT28HC64B-70JU 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. Consumer Electronics: Provides storage for settings, preferences, and firmware updates in devices like smart TVs, set-top boxes, and gaming consoles.
3. Industrial Automation: Utilized in programmable logic controllers (PLCs) for storing configuration data and program code.
4. Automotive Electronics: Used in automotive ECUs (Electronic Control Units) for storing calibration data, fault codes