Encyclopedia Entry: 93C56B-E/SN

Product Overview

Category

The 93C56B-E/SN belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

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

Characteristics

• Non-volatile: The 93C56B-E/SN retains data even when power is removed.
• Electrically erasable: The chip can be erased and reprogrammed electronically.
• Small form factor: The package size is compact, making it suitable for space-constrained applications.
• Low power consumption: The chip operates efficiently with minimal power requirements.

Package and Quantity

The 93C56B-E/SN is available in a surface mount package (SN) and is typically sold in reels or tubes. The exact quantity per package may vary depending on the supplier.

Specifications

• Memory capacity: 2 kilobits (256 x 8 bits)
• Operating voltage: 2.5V to 5.5V
• Operating temperature range: -40°C to +85°C
• Write endurance: 1 million cycles
• Data retention: 100 years

Pin Configuration

The 93C56B-E/SN has a total of 8 pins, which are assigned specific functions: 1. Chip Select (/CS): Enables communication with the chip. 2. Serial Clock (CLK): Controls the timing of data transfer. 3. Serial Data Input (DI): Receives data during write operations. 4. Serial Data Output (DO): Outputs data during read operations. 5. Write Enable (/W): Enables or disables write operations. 6. VCC: Power supply input (+2.5V to +5.5V). 7. Ground (GND): Common ground reference. 8. Not Connected (NC): Unused pin.

Functional Features

• Sequential read and write operations: The chip allows for easy reading and writing of data in a sequential manner.
• Software and hardware protection: It provides mechanisms to protect stored data from unauthorized access or accidental modification.
• High-speed operation: The 93C56B-E/SN supports fast data transfer rates, enabling efficient data handling.

Advantages

• Compact size and low power consumption make it suitable for portable and battery-powered devices.
• High reliability and long data retention ensure the integrity of stored information.
• Easy integration into existing electronic systems due to standard serial communication interface.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Relatively slower write speeds compared to some newer EEPROM variants.

Working Principles

The 93C56B-E/SN utilizes an electrically controlled floating gate to store and retrieve data. When programming, an electrical charge is applied to the floating gate, altering its threshold voltage and storing the desired data. Erasing is achieved by removing the charge from the floating gate using an electrical pulse. Reading involves measuring the voltage level on the floating gate to determine the stored data.

Application Field Plans

The 93C56B-E/SN finds applications in various fields, including: 1. Microcontrollers: Used for storing firmware, configuration settings, and calibration data. 2. Automotive systems: Employed in engine control units, infotainment systems, and instrument clusters. 3. Consumer electronics: Integrated into smart TVs, set-top boxes, and home automation devices.

Alternative Models

Other similar EEPROM chips that can be considered as alternatives to the 93C56B-E/SN include: - 93C46B: A lower capacity variant with 1 kilobit memory. - 93C66B: A higher capacity variant with 4 kilobits memory. - 93C86B: A higher capacity variant with 16 kilobits memory.

In conclusion, the 93C56B-E/SN is a compact and versatile EEPROM chip that offers non-volatile storage capabilities for various electronic applications. Its high reliability, ease of integration, and functional features make it a popular choice among designers and engineers.

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