Encyclopedia Entry: 93LC46A-E/P

Product Overview

• Category: Integrated Circuit (IC)
• Use: Non-volatile Electrically Erasable Programmable Read-Only Memory (EEPROM)
• Characteristics: Small form factor, low power consumption, high reliability
• Package: 8-pin DIP (Dual In-line Package)
• Essence: Data storage and retrieval in electronic devices
• Packaging/Quantity: Available in tubes of 25 or reels of 1,000 units

Specifications

• Memory Size: 1,024 bits (128 bytes)
• Organization: 64 words x 16 bits
• Supply Voltage: 2.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Cycle Endurance: 1 million cycles
• Data Retention: 200 years

Detailed Pin Configuration

The 93LC46A-E/P IC has the following pin configuration:

| Pin Number | Pin Name | Function | |------------|----------|----------| | 1 | CS | Chip Select (Active Low) | | 2 | SK | Serial Clock Input | | 3 | DI | Serial Data Input | | 4 | VSS | Ground | | 5 | DO | Serial Data Output | | 6 | NC | No Connection | | 7 | WP | Write Protect (Active Low) | | 8 | VCC | Supply Voltage |

Functional Features

• Non-volatile memory: Retains data even when power is removed
• Electrically erasable and programmable: Allows for easy modification of stored data
• Serial interface: Enables simple integration with microcontrollers and other digital systems
• Low power consumption: Ideal for battery-powered devices
• High reliability: Designed to withstand harsh operating conditions

Advantages and Disadvantages

Advantages: - Compact size allows for integration in space-constrained applications - Wide operating voltage range enables compatibility with various systems - High endurance and long data retention ensure reliable performance over time

Disadvantages: - Limited memory capacity may not be suitable for large-scale data storage requirements - Serial interface may result in slower data transfer compared to parallel interfaces

Working Principles

The 93LC46A-E/P EEPROM utilizes a floating gate transistor structure to store and retrieve data. When data is written, an electric charge is trapped in the floating gate, altering the transistor's threshold voltage. This change in threshold voltage determines whether the stored bit is read as a logic high or low. The data can be erased by applying a higher voltage to remove the trapped charge, allowing the transistor to return to its original state.

Detailed Application Field Plans

The 93LC46A-E/P IC finds application in various electronic devices that require non-volatile memory for storing configuration settings, calibration data, or small amounts of user data. Some common application fields include: - Consumer electronics (e.g., TVs, set-top boxes, remote controls) - Automotive electronics (e.g., engine control units, infotainment systems) - Industrial automation (e.g., programmable logic controllers, sensors) - Medical devices (e.g., patient monitors, diagnostic equipment) - Smart home devices (e.g., thermostats, security systems)

Detailed and Complete Alternative Models

• 93LC46B-E/P: Similar specifications but with extended temperature range (-40°C to +125°C)
• 93LC46C-E/P: Higher memory capacity (2,048 bits) with the same pin configuration and package
• 93LC66A-E/P: Double the memory size (2,048 bits) with a similar pin configuration and package

Note: This is not an exhaustive list of alternative models. Please refer to the manufacturer's documentation for a complete list.

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