CAT93C76ZD4I-GT3

Product Overview

Category

CAT93C76ZD4I-GT3 belongs to the category of EEPROM (Electrically Erasable Programmable Read-Only Memory) integrated circuits.

Use

This product is commonly used for non-volatile data storage in various electronic devices, such as microcontrollers, automotive systems, consumer electronics, and industrial applications.

Characteristics

• Non-volatile memory: The CAT93C76ZD4I-GT3 retains stored data even when power is removed.
• Electrically erasable: The memory can be erased and reprogrammed electrically, eliminating the need for UV light exposure.
• High endurance: This EEPROM has a high number of write/erase cycles, ensuring long-term reliability.
• Low power consumption: The CAT93C76ZD4I-GT3 operates at low voltage levels, making it suitable for battery-powered devices.
• Small package size: It comes in a compact package, allowing for space-efficient integration into electronic systems.

Package and Quantity

The CAT93C76ZD4I-GT3 is available in a surface-mount 8-pin SOIC (Small Outline Integrated Circuit) package. It is typically sold in reels containing a quantity of 2500 units.

Specifications

• Memory capacity: 8 kilobits (1 kilobyte)
• Operating voltage: 2.5V - 5.5V
• Operating temperature range: -40°C to +85°C
• Data retention: Up to 200 years
• Write/erase cycles: Minimum 1 million cycles
• Interface: SPI (Serial Peripheral Interface)

Pin Configuration

The CAT93C76ZD4I-GT3 has the following pin configuration:

┌───┬───┐ │ 1 │ 8 │ │ │ │ ┌──┴───┴───┴──┐ │ │ │ │ └─────────────┘

Pin Description: 1. Chip Select (CS) 2. Serial Clock (SCK) 3. Serial Data Input (SI) 4. Serial Data Output (SO) 5. Write Protect (WP) 6. VCC (Power Supply) 7. Ground (GND) 8. NC (No Connection)

Functional Features

• Byte-level Read/Write: The CAT93C76ZD4I-GT3 allows individual byte read and write operations, providing flexibility in data manipulation.
• Sequential Read: It supports sequential read operations, enabling efficient retrieval of consecutive memory locations.
• Software Protection: The Write Protect pin can be used to prevent accidental modification of stored data.
• Hardware Reset: A power-on reset feature ensures proper initialization of the device upon power-up.

Advantages and Disadvantages

Advantages

• Non-volatile storage capability ensures data retention even during power loss.
• Electrically erasable and reprogrammable, eliminating the need for specialized equipment.
• High endurance enables frequent write/erase cycles without compromising reliability.
• Low power consumption extends battery life in portable devices.
• Compact package size facilitates integration into space-constrained designs.

Disadvantages

• Limited memory capacity compared to other storage technologies.
• Slower write/erase speeds compared to volatile memory types.
• Relatively higher cost per kilobyte compared to some alternative memory solutions.

Working Principles

The CAT93C76ZD4I-GT3 utilizes a floating gate transistor structure to store data. When programming, an electric charge is applied to the floating gate, altering its electrical characteristics. This charge determines whether the transistor represents a logical "0" or "1". The stored data can be read by applying appropriate voltage levels to the memory cells.

Detailed Application Field Plans

The CAT93C76ZD4I-GT3 finds applications in various fields, including:

1. Microcontrollers: Used for storing firmware, configuration settings, and calibration data.
2. Automotive Systems: Employed in electronic control units (ECUs) for storing vehicle-specific parameters and diagnostic information.
3. Consumer Electronics: Integrated into devices like smart TVs, set-top boxes, and gaming consoles for data storage purposes.
4. Industrial Applications: Utilized in industrial automation systems, sensors, and equipment for storing critical data and device configurations.

Alternative Models

Several alternative models with similar functionality are available in the market. Some notable alternatives to the CAT93C76ZD4I-GT3 include:

1. AT24C08: Manufactured by Atmel, this EEPROM offers 8 kilobits of memory capacity and operates on a wide voltage range.
2. 25AA080D: Produced by Microchip, this SPI-compatible EEPROM provides 8 kilobits of non-volatile storage.