X28HC64JIZ-90

Product Overview

Category

X28HC64JIZ-90 belongs to the category of non-volatile electrically erasable programmable read-only memory (EEPROM) chips.

Use

The X28HC64JIZ-90 chip is primarily used for storing and retrieving data in electronic devices. It provides a reliable and non-volatile memory solution for various applications.

Characteristics

• Non-volatile: The X28HC64JIZ-90 retains stored data even when power is removed.
• Electrically erasable: The chip allows for easy modification and updating of stored data.
• Programmable: Users can write, read, and erase data on the chip as needed.
• High capacity: The X28HC64JIZ-90 has a storage capacity of 64 kilobits (8 kilobytes).
• Fast access time: The chip offers quick data retrieval with a maximum access time of 90 nanoseconds.

Package and Quantity

The X28HC64JIZ-90 is available in a standard 28-pin plastic dual in-line package (PDIP). It is typically sold in reels or tubes containing multiple units.

Specifications

• Supply voltage: 2.7V to 5.5V
• Operating temperature range: -40°C to +85°C
• Data retention: 100 years
• Endurance: 1 million write cycles

Pin Configuration

The X28HC64JIZ-90 chip has a total of 28 pins, each serving a specific function. The pin configuration is as follows:

```

Pin Name Description

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 DQ0 Data Input/Output 11 DQ1 Data Input/Output 12 DQ2 Data Input/Output 13 DQ3 Data Input/Output 14 DQ4 Data Input/Output 15 DQ5 Data Input/Output 16 DQ6 Data Input/Output 17 DQ7 Data Input/Output 18 WE Write Enable 19 CE Chip Enable 20 OE Output Enable 21 NC No Connection 22 VCC Power Supply 23 WP Write Protect 24 NC No Connection 25 NC No Connection 26 NC No Connection 27 NC No Connection 28 NC No Connection ```

Functional Features

The X28HC64JIZ-90 offers several functional features that enhance its usability and performance:

1. High-speed operation: The chip provides fast read and write access times, allowing for efficient data handling.
2. Low power consumption: It is designed to minimize power usage, making it suitable for battery-powered devices.
3. Hardware and software protection: The X28HC64JIZ-90 includes write protection features to prevent accidental modification or erasure of stored data.
4. Compatibility: The chip is compatible with various microcontrollers and digital systems, ensuring seamless integration into existing designs.

Advantages and Disadvantages

Advantages

• Non-volatile memory ensures data retention even during power loss.
• Electrically erasable and programmable, enabling easy data modification.
• High storage capacity for a wide range of applications.
• Fast access time allows for quick data retrieval.
• Low power consumption extends battery life in portable devices.

Disadvantages

• Limited endurance with a maximum of 1 million write cycles.
• Relatively higher cost compared to other memory technologies.
• Requires careful handling and storage to prevent damage.

Working Principles

The X28HC64JIZ-90 utilizes EEPROM technology to store data. It consists of a grid of memory cells, each capable of holding one bit of information. The chip employs a combination of transistors and capacitors to store and retrieve data electrically.

During write operations, the desired data is sent to the chip's input pins and stored in the appropriate memory cells. Reading data involves activating the chip and accessing the specific memory location to retrieve the stored information.

Application Field Plans

The X28HC64JIZ-90 chip finds applications in various fields, including:

1. Consumer electronics: Used in digital cameras, set-top boxes, and smart home devices for data storage.
2. Automotive systems: Employed in car audio systems, navigation units, and engine control modules for storing critical information.
3. Industrial automation: Utilized in programmable logic controllers (PLCs) and industrial control