Encyclopedia Entry: 93C56BT-E/SN

Product Overview

• Category: Integrated Circuit (IC)
• Use: Non-volatile Electrically Erasable Programmable Read-Only Memory (EEPROM)
• Characteristics: Small form factor, low power consumption, high data retention, and endurance
• Package: SOIC (Small Outline Integrated Circuit)
• Essence: Stores digital information even when power is removed
• Packaging/Quantity: Sold in reels of 2500 units

Specifications

• Memory Size: 2 kilobits (256 x 8 bits)
• Operating Voltage: 2.5V to 5.5V
• Operating Temperature: -40°C to +85°C
• Write Cycles: Up to 1 million cycles
• Data Retention: Up to 200 years

Detailed Pin Configuration

The 93C56BT-E/SN IC has a total of 8 pins arranged as follows:

```

---

| | | U | | | |___________|

Pin Configuration:

    1  2  3
   __     __
  |  \___/  |
  |         |
  |         |
  |_________|

    4  5  6
   __     __
  |  \___/  |
  |         |
  |         |
  |_________|

    7  8
   ____
  |    |
  |    |
  |____|

```

Pin Description: 1. Chip Select (CS): Enables the IC for communication. 2. Serial Data Input (DI): Receives data serially for programming or reading. 3. Serial Data Output (DO): Outputs data serially during reading operations. 4. Clock (CLK): Provides timing for data transfer. 5. Write Enable (WE): 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): No internal connection.

Functional Features

• Non-volatile memory: Retains data even without power supply.
• Electrically Erasable Programmable Read-Only Memory (EEPROM): Allows for easy modification of stored data.
• High endurance: Supports up to 1 million write cycles.
• Low power consumption: Ideal for battery-powered devices.
• Small form factor: Saves space in electronic designs.

Advantages and Disadvantages

Advantages: - Reliable data storage even in the absence of power. - Easy to program and modify data. - Compact size suitable for various applications. - Low power consumption extends battery life.

Disadvantages: - Limited memory capacity compared to other EEPROMs. - Relatively slower read and write speeds. - Sensitive to electrostatic discharge (ESD) during handling.

Working Principles

The 93C56BT-E/SN is based on EEPROM technology, which utilizes floating gate transistors to store charge. When data needs to be written, a high voltage is applied to the control gate, allowing electrons to tunnel through the insulating layer and become trapped in the floating gate. This trapped charge alters the transistor's threshold voltage, representing a binary value (0 or 1). During read operations, the stored charge is measured to determine the stored data.

Detailed Application Field Plans

The 93C56BT-E/SN IC finds applications in various fields, including: 1. Automotive electronics: Used for storing critical vehicle parameters, such as mileage, engine settings, and security codes. 2. Consumer electronics: Employed in devices like set-top boxes, remote controls, and smart home systems for storing configuration data. 3. Industrial automation: Utilized in programmable logic controllers (PLCs) to store program code and system parameters. 4. Medical devices: Integrated into medical equipment for storing patient data, calibration settings, and device configurations.

Detailed and Complete Alternative Models

1. 93C46BT-E/SN: Similar to 93C56BT-E/SN but with a smaller memory size of 1 kilobit.
2. 93C66BT-E/SN: Offers a larger memory size of 4 kilobits (512 x 8 bits).
3. 93C86BT-E/SN: Provides an extended memory size of 16 kilobits (2048 x 8 bits).

These alternative models offer different memory capacities to suit specific application requirements while maintaining similar functionality and characteristics.

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