Encyclopedia Entry: 93C46B-I/P

Product Overview

Category

The 93C46B-I/P 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, automotive systems, consumer electronics, and industrial applications.

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 space-efficient.
• Low power consumption: It operates with minimal power requirements.
• High reliability: Offers robust data retention and endurance.

Package

The 93C46B-I/P is available in a DIP (Dual In-line Package) format. This package type allows for easy integration onto circuit boards and facilitates manual soldering or socket insertion.

Essence

The essence of the 93C46B-I/P lies in its ability to provide reliable and non-volatile data storage in a compact and easily integrable package.

Packaging/Quantity

This product is typically packaged in reels or tubes, containing a specific quantity of chips per package. The exact packaging and quantity may vary depending on the manufacturer's specifications.

Specifications

• Memory capacity: 1 kilobit (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: 100 years

Detailed Pin Configuration

The 93C46B-I/P has an 8-pin configuration, with the following pin functions:

1. Chip Select (/CS): Enables or disables the chip for communication.
2. Serial Data Input (DI): Receives data serially for programming or reading.
3. Serial Data Output (DO): Outputs data serially during read operations.
4. Clock (CLK): Provides the clock signal for synchronization.
5. VCC: Power supply voltage input.
6. Write Enable (/W): Controls write operations.
7. Ground (GND): Common ground reference.
8. Not Used (NC): No connection.

Functional Features

• Sequential Read: Allows consecutive reading of memory locations.
• Byte/Page Write: Enables individual byte or page-level data programming.
• Software Protection: Supports software-based protection mechanisms.
• Self-Timed Programming Cycle: Simplifies programming operations.
• Standby Mode: Reduces power consumption when not in use.

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data integrity even during power loss.
• Compact form factor enables integration into space-constrained designs.
• Low power consumption prolongs battery life in portable devices.
• High endurance and reliability ensure long-term data retention.
• Versatile application across various electronic systems.

Disadvantages

• Limited memory capacity compared to other EEPROM variants.
• Relatively slower write and erase operations.
• Higher cost per bit compared to traditional ROM chips.

Working Principles

The 93C46B-I/P utilizes a floating-gate transistor structure to store data. It employs an electric field to trap or release charge on the floating gate, representing binary states (0 or 1). The stored charge determines the logic state of each memory cell, allowing for non-volatile data storage.

During write operations, an electrical charge is applied to the floating gate, altering its threshold voltage and storing the desired data. Erasing the data involves removing the trapped charge from the floating gate, resetting it to its initial state.

Detailed Application Field Plans

The 93C46B-I/P finds applications in various fields, including:

1. Microcontrollers: Used for storing firmware, configuration data, and calibration parameters.
2. Automotive Systems: Employed in electronic control units (ECUs) for vehicle diagnostics and parameter storage.
3. Consumer Electronics: Integrated into devices like smart TVs, set-top boxes, and audio systems for data storage purposes.
4. Industrial Applications: Utilized in industrial automation, instrumentation, and control systems for data logging and configuration storage.

Detailed and Complete Alternative Models

• 93C46A-I/P: Similar to the 93C46B-I/P but with a different pinout configuration.
• 93C56B-I/P: Offers higher memory capacity (2 kilobits) while maintaining compatibility with the 93C46B-I/P.
• 93C86B-I/P: Provides increased memory capacity (16 kilobits) for applications requiring more storage space.

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