25C040X/ST

Product Overview

Category

The 25C040X/ST belongs to the category of non-volatile memory devices.

Use

This product is primarily used for storing and retrieving data in electronic systems.

Characteristics

• Non-volatile: The 25C040X/ST retains stored data even when power is removed.
• High storage capacity: This device has a storage capacity of 4 kilobits (512 bytes).
• Serial interface: It utilizes a serial communication protocol for data transfer.
• Low power consumption: The 25C040X/ST operates at low power levels, making it suitable for battery-powered applications.

Package

The 25C040X/ST is available in a compact surface-mount package.

Essence

The essence of the 25C040X/ST lies in its ability to provide reliable and non-volatile data storage in a small form factor.

Packaging/Quantity

This product is typically packaged in reels or tubes and is available in various quantities to meet different production needs.

Specifications

• Storage Capacity: 4 kilobits (512 bytes)
• Interface: Serial
• Operating Voltage: 2.5V - 5.5V
• Operating Temperature Range: -40°C to +85°C
• Write Endurance: 1 million cycles
• Data Retention: 100 years

Detailed Pin Configuration

The 25C040X/ST has the following pin configuration:

1. Chip Select (CS)
2. Serial Clock (SCK)
3. Serial Data Input (SI)
4. Serial Data Output (SO)
5. Write Protect (WP)
6. Ground (GND)
7. Power Supply (VCC)

Functional Features

• Sequential read and write operations
• Byte-level and page-level write protection
• Software and hardware write protection options
• Fast write and read access times
• Low power consumption in standby mode

Advantages and Disadvantages

Advantages

• Non-volatile storage ensures data integrity even during power loss.
• Compact form factor allows for easy integration into various electronic systems.
• Wide operating voltage range enables compatibility with different power supply levels.
• High write endurance and long data retention period ensure product longevity.

Disadvantages

• Limited storage capacity compared to other memory devices.
• Serial interface may result in slower data transfer rates compared to parallel interfaces.
• Relatively higher cost per kilobit compared to larger capacity memory devices.

Working Principles

The 25C040X/ST utilizes a combination of floating gate and tunneling technologies to store and retrieve data. When data is written, charges are trapped in the floating gate, altering the threshold voltage of the memory cell. This change in threshold voltage is used to represent the stored data. During read operations, the threshold voltage is measured to determine the stored data value.

Detailed Application Field Plans

The 25C040X/ST finds applications in various electronic systems, including but not limited to:

1. Consumer electronics: Used for storing configuration settings, firmware updates, and user data in devices such as smart TVs, set-top boxes, and gaming consoles.
2. Industrial automation: Enables data logging, parameter storage, and firmware updates in industrial control systems and programmable logic controllers (PLCs).
3. Automotive electronics: Utilized for storing calibration data, fault codes, and configuration settings in automotive modules like engine control units (ECUs) and infotainment systems.
4. Medical devices: Provides non-volatile storage for patient data, device configurations, and firmware updates in medical equipment such as patient monitors and diagnostic devices.

Detailed and Complete Alternative Models

1. 25C080X/ST: Offers double the storage capacity of the 25C040X/ST (8 kilobits).
2. 25C160X/ST: Provides four times the storage capacity of the 25C040X/ST (16 kilobits).
3. 25C320X/ST: Offers eight times the storage capacity of the 25C040X/ST (32 kilobits).
4. 25C640X/ST: Provides sixteen times the storage capacity of the 25C040X/ST (64 kilobits).

These alternative models offer increased storage capacity while maintaining similar characteristics and functionality to the 25C040X/ST.

In conclusion, the 25C040X/ST is a non-volatile memory device with a compact form factor and a storage capacity of 4 kilobits. It offers reliable data storage, low power consumption, and various functional features. While it has limitations in terms of storage capacity and data transfer rates, it finds applications in consumer electronics, industrial automation, automotive electronics, and medical devices. Alternative models with higher storage capacities are available for those requiring more memory.