Encyclopedia Entry: 93LC76C-E/SN

Product Overview

Category

The 93LC76C-E/SN belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

This chip is commonly used for non-volatile data storage in various electronic devices, such as microcontrollers, computers, and consumer electronics.

Characteristics

• Electrically erasable: The 93LC76C-E/SN allows for easy erasure and reprogramming of data without requiring physical removal.
• Non-volatile: The stored data remains intact even when power is disconnected.
• High storage capacity: This chip has a storage capacity of 8 kilobits (1 kilobyte).
• Low power consumption: It operates efficiently with low power requirements.
• Small form factor: The chip comes in a compact package, making it suitable for space-constrained applications.

Package and Quantity

The 93LC76C-E/SN is available in an 8-pin SOIC (Small Outline Integrated Circuit) package. It is typically sold in reels or tubes containing multiple units.

Specifications

• Memory Capacity: 8 kilobits (1 kilobyte)
• Operating Voltage: 2.5V to 5.5V
• Data Retention: Up to 200 years
• Write Endurance: 1 million write cycles
• Operating Temperature Range: -40°C to +85°C
• Interface: Serial Peripheral Interface (SPI)

Pin Configuration

The 93LC76C-E/SN features the following pin configuration:

| Pin Number | Pin Name | Function | |------------|----------|----------| | 1 | CS | Chip Select | | 2 | DO | Data Output | | 3 | GND | Ground | | 4 | VCC | Power Supply | | 5 | DI | Data Input | | 6 | CLK | Clock Input | | 7 | NC | No Connection | | 8 | WP | Write Protect |

Functional Features

• Sequential Read and Write: The chip allows for sequential reading and writing of data, enabling efficient data transfer.
• Hardware Write Protection: The WP pin can be used to protect the stored data from accidental overwriting.
• Self-Timed Programming Cycle: The chip automatically manages the timing of programming operations, simplifying the integration process.
• Software and Hardware Data Protection: Various mechanisms are in place to ensure data integrity and prevent unauthorized access.

Advantages and Disadvantages

Advantages

• Easy to use and integrate into electronic systems.
• High storage capacity for its compact size.
• Low power consumption, making it suitable for battery-powered devices.
• Long data retention period ensures data reliability.
• Hardware write protection adds an extra layer of security.

Disadvantages

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

Working Principles

The 93LC76C-E/SN utilizes a combination of electrically controlled floating gate transistors and semiconductor technology to store and retrieve data. It employs a serial peripheral interface (SPI) for communication with the host device. When data is written, electrical charges are trapped in the floating gate, altering the transistor's behavior and storing the information. During read operations, the trapped charges are detected, allowing the retrieval of the stored data.

Application Field Plans

The 93LC76C-E/SN finds applications in various fields, including: 1. Automotive electronics: Used for storing configuration data, calibration parameters, and event logs in automotive control units. 2. Industrial automation: Employed in programmable logic controllers (PLCs) for storing program code and critical data. 3. Consumer electronics: Integrated into devices like smart TVs, set-top boxes, and gaming consoles for firmware storage and system configuration. 4. Medical devices: Utilized for storing patient data, device settings, and firmware in medical equipment.

Alternative Models

For those seeking alternative EEPROM chips with similar characteristics, the following models can be considered: - 93LC66C-E/SN - 93LC86C-E/SN - 25LC080C-I/SN - 24LC512-I/SN

These alternatives offer varying storage capacities, package options, and interface compatibility to cater to different application requirements.

In conclusion, the 93LC76C-E/SN is a versatile EEPROM chip that provides non-volatile data storage capabilities for a wide range of electronic devices. Its compact size, low power consumption, and hardware write protection make it an attractive choice for many applications.

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