Encyclopedia Entry: 93LC56BXT-E/SN

Product Overview

Category

The 93LC56BXT-E/SN belongs to the category of electrically erasable programmable read-only memory (EEPROM) chips.

Use

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

Characteristics

• Electrically erasable: The 93LC56BXT-E/SN can be erased and reprogrammed electronically, eliminating the need for physical erasure.
• Non-volatile: The stored data remains intact even when power is removed.
• High storage capacity: This chip has a storage capacity of 2 kilobits (256 bytes).
• Low power consumption: It operates on low power, making it suitable for battery-powered devices.
• Small form factor: The 93LC56BXT-E/SN comes in a compact package, allowing for space-efficient integration into electronic circuits.

Package and Quantity

The 93LC56BXT-E/SN is available in an 8-pin SOIC (Small Outline Integrated Circuit) package. It is typically sold in reels containing multiple units.

Specifications

• Memory Capacity: 2 kilobits (256 bytes)
• Operating Voltage: 2.5V to 5.5V
• Data Retention: Up to 200 years
• Write Endurance: 1 million write cycles
• Operating Temperature Range: -40°C to +85°C
• Interface: Serial Peripheral Interface (SPI)

Pin Configuration

The 93LC56BXT-E/SN features the following pin configuration:

┌───┬───┐ │ 1 │ 8 │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ 4 │ 5 │ └───┴───┘

1. Chip Select (CS): Enables communication with the chip.
2. Serial Clock (SCK): Provides the clock signal for data transfer.
3. Data Input/Output (DI/DO): Bidirectional data line for input and output.
4. Ground (GND): Connection to the ground reference.
5. VCC: Power supply voltage input.

Functional Features

• Byte-Level Read/Write: The 93LC56BXT-E/SN allows individual byte-level read and write operations, providing flexibility in data manipulation.
• Sequential Read: It supports sequential read operations, enabling efficient retrieval of consecutive data bytes.
• Hardware Write Protection: This chip features a write protection mechanism that prevents accidental or unauthorized modification of stored data.
• Self-Timed Programming: The programming process is internally controlled, eliminating the need for external timing signals.

Advantages and Disadvantages

Advantages

• High storage capacity for its compact size.
• Low power consumption, suitable for battery-powered devices.
• Long data retention period.
• Easy integration into electronic circuits due to its small form factor.
• Efficient sequential read capability.

Disadvantages

• Limited storage capacity compared to other EEPROM chips.
• Relatively slower write speed compared to some alternative models.

Working Principles

The 93LC56BXT-E/SN utilizes an electrically erasable floating-gate transistor technology. It stores data by trapping charges in the floating gate, which can be selectively removed or added through electrical pulses. The presence or absence of charges determines the binary state of each memory cell, representing the stored data.

Application Field Plans

The 93LC56BXT-E/SN finds applications in various fields, including: 1. Microcontrollers: Used for storing firmware, configuration data, and calibration parameters. 2. Computers: Employed in BIOS chips for storing system settings and boot code. 3. Consumer Electronics: Integrated into devices like smart TVs, set-top boxes, and digital cameras for data storage purposes.

Alternative Models

Some alternative models to the 93LC56BXT-E/SN include: - 24LC256: Offers a higher storage capacity of 32 kilobits (4 kilobytes). - AT24C02: Provides a lower storage capacity of 256 bits (32 bytes) but operates at a lower voltage range. - CAT24C16: Features a larger storage capacity of 16 kilobits (2 kilobytes) and supports a wider temperature range.

In conclusion, the 93LC56BXT-E/SN is an electrically erasable programmable read-only memory chip that offers high storage capacity, low power consumption, and compact form factor. It finds applications in microcontrollers, computers, and consumer electronics. While it has some limitations in terms of storage capacity and write