Encyclopedia Entry: 93LC76BT-I/MS

Product Overview

Category

The 93LC76BT-I/MS belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

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

Characteristics

• Non-volatile: The stored data remains even when power is removed.
• Electrically erasable: Data can be erased and reprogrammed electronically.
• Small form factor: The chip is compact and suitable for integration into space-constrained devices.
• High endurance: It can withstand a large number of erase/write cycles.
• Low power consumption: The chip operates efficiently with minimal power requirements.

Package and Quantity

The 93LC76BT-I/MS is available in a surface-mount package. Each package contains a single chip.

Specifications

• Memory capacity: 8 kilobits (1 kilobyte)
• Operating voltage: 2.5V to 5.5V
• Maximum clock frequency: 2 MHz
• Write cycle time: 5 ms (typical)
• Data retention: 200 years (minimum)

Pin Configuration

The chip has a total of 8 pins, which are assigned specific functions: 1. Chip Select (/CS): Enables or disables the chip for communication. 2. Serial Clock (SCK): Provides the clock signal for data transfer. 3. Serial Data Input (SI): Receives data from the external device. 4. Serial Data Output (SO): Transmits data to the external device. 5. Write Enable (/WE): Controls the write operation. 6. VCC: Power supply voltage. 7. Ground (GND): Common ground reference. 8. Hold (/HOLD): Suspends ongoing operations temporarily.

Functional Features

• Byte-level Read/Write: Allows individual bytes to be read from or written to the memory.
• Sequential Read: Supports continuous reading of multiple bytes.
• Hardware Write Protection: Provides protection against accidental writes by enabling write-protection mechanisms.
• Software Write Protection: Allows software control over write operations for enhanced security.
• Self-timed Programming: Automatically manages programming and erase operations, simplifying integration into systems.

Advantages

• Non-volatile storage ensures data retention even during power loss.
• Electrically erasable capability allows for easy reprogramming.
• Compact size facilitates integration into various electronic devices.
• High endurance enables frequent data updates without degradation.
• Low power consumption prolongs battery life in portable devices.

Disadvantages

• Limited memory capacity compared to other storage technologies.
• Relatively slower write cycle time may impact performance in certain applications.
• Susceptible to electromagnetic interference (EMI) due to its small form factor.

Working Principles

The 93LC76BT-I/MS utilizes a combination of floating-gate transistors and electronic charge injection to store and retrieve data. When writing, an electrical charge is applied to specific memory cells, altering their state. Reading involves sensing the charge level of each cell to determine the stored data.

Application Field Plans

The 93LC76BT-I/MS finds application in various fields, including: 1. Embedded Systems: Used for firmware storage in microcontrollers and system-on-chip (SoC) designs. 2. Automotive Electronics: Employed for storing configuration data, calibration parameters, and event logs in automotive control units. 3. Industrial Automation: Utilized for non-volatile parameter storage in programmable logic controllers (PLCs) and human-machine interfaces (HMIs). 4. Consumer Electronics: Integrated into devices like smart TVs, set-top boxes, and gaming consoles for data storage purposes.

Alternative Models

For similar functionality, alternative models to consider include: - 93LC66B-I/MS: 4 kilobits (0.5 kilobyte) memory capacity. - 93LC1024-I/MS: 128 kilobits (16 kilobytes) memory capacity. - 25AA080C-I/MS: Serial EEPROM with 8 kilobits (1 kilobyte) memory capacity.

In conclusion, the 93LC76BT-I/MS is a versatile EEPROM chip that offers non-volatile data storage, ease of reprogramming, and compact size. Its application spans across various industries, making it an essential component in modern electronic devices.

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