Encyclopedia Entry: 93LC76B-E/MS

Product Overview

Category

The 93LC76B-E/MS 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 93LC76B-E/MS allows for easy erasure and reprogramming of data without requiring physical removal.
• Non-volatile: The stored data remains intact even when power is removed.
• Small form factor: The chip is designed to be compact, making it suitable for space-constrained applications.
• High endurance: It can withstand a large number of erase/write cycles, ensuring long-term reliability.
• Low power consumption: The 93LC76B-E/MS operates efficiently, minimizing energy usage.

Package and Quantity

The 93LC76B-E/MS is available in a surface-mount package. Each package contains a single chip.

Specifications

• Memory capacity: The chip has a total memory capacity of 8 kilobits (1 kilobyte).
• Operating voltage: It operates within a voltage range of 2.5V to 5.5V.
• Data transfer speed: The chip supports a maximum clock frequency of 2 MHz.
• Temperature range: It can operate reliably within a temperature range of -40°C to +85°C.

Pin Configuration

The 93LC76B-E/MS chip features an 8-pin configuration:

1. Chip Select (/CS): Enables or disables the chip for communication.
2. Serial Clock (CLK): Controls the timing of data transfer.
3. Serial Data Input (DI): Receives data from the external device.
4. Serial Data Output (DO): Transmits data to the external device.
5. Write Protect (/WP): Allows write protection for the chip.
6. VCC: Power supply voltage input.
7. Ground (GND): Common ground reference.
8. Hold (/HOLD): Pauses ongoing operations temporarily.

Functional Features

• Random access: The 93LC76B-E/MS allows direct access to any memory location, facilitating efficient data retrieval.
• Byte-wise programming: It supports byte-level programming, enabling selective modification of data.
• Hardware and software protection: The chip provides mechanisms to protect against unauthorized access and accidental modifications.
• Self-timed programming: The programming process is internally controlled, eliminating the need for external timing signals.
• Sequential read operation: It allows consecutive reading of data without requiring repeated address input.

Advantages and Disadvantages

Advantages

• Compact size enables integration into space-constrained devices.
• High endurance ensures reliable long-term data storage.
• Low power consumption prolongs battery life in portable applications.
• Easy erasure and reprogramming simplify data management.
• Hardware and software protection enhance data security.

Disadvantages

• Limited memory capacity may not be sufficient for certain applications.
• Slower data transfer speed compared to some other memory technologies.
• Relatively higher cost per kilobyte compared to alternative memory solutions.

Working Principles

The 93LC76B-E/MS utilizes a combination of electronic circuits and semiconductor memory cells to store and retrieve data. It employs an electrically controlled floating gate structure that allows for non-volatile data storage. The chip uses a serial communication protocol to transfer data between the chip and the external device.

Application Field Plans

The 93LC76B-E/MS finds application in various fields, including: 1. Microcontrollers: Used for storing firmware, configuration data, and calibration parameters. 2. Automotive electronics: Employed in engine control units, airbag systems, and infotainment systems. 3. Industrial automation: Utilized for data logging, configuration storage, and device identification. 4. Consumer electronics: Integrated into smart TVs, set-top boxes, and home appliances for data storage and firmware updates.

Alternative Models

1. 93LC76C-E/MS: Similar to the 93LC76B-E/MS but with extended temperature range (-40°C to +125°C).
2. 93LC76A-E/MS: Lower capacity variant with 4 kilobits (0.5 kilobyte) of memory.
3. 93LC66B-E/MS: Smaller capacity variant with 4 kilobits (0.5 kilobyte) of memory.

These alternative models provide options based on specific application requirements, temperature ranges, and memory capacities.

In conclusion, the 93LC76B-E/MS is a compact and versatile EEPROM chip that offers non-volatile data storage capabilities. Its high endurance, low power consumption, and easy programmability make it suitable for a wide range of applications in various industries.