AT25040B-SSHL-B

Product Overview

Category

AT25040B-SSHL-B belongs to the category of Serial EEPROM (Electrically Erasable Programmable Read-Only Memory) chips.

Use

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

Characteristics

• Non-volatile memory: The AT25040B-SSHL-B retains data even when power is removed.
• High endurance: It can withstand a large number of read and write cycles.
• Small form factor: The chip is compact and suitable for space-constrained applications.
• Low power consumption: It operates efficiently with minimal power requirements.

Package

The AT25040B-SSHL-B comes in a small outline integrated circuit (SOIC) package. This package provides protection and ease of integration into electronic systems.

Essence

The essence of this product lies in its ability to store and retrieve data reliably, making it an essential component for many electronic devices.

Packaging/Quantity

The AT25040B-SSHL-B is typically packaged in reels or tubes, with quantities varying depending on customer requirements.

Specifications

• Memory capacity: 4 kilobits (512 bytes)
• Interface: Serial Peripheral Interface (SPI)
• Operating voltage: 1.8V to 5.5V
• Operating temperature range: -40°C to +85°C
• Write endurance: 1 million cycles
• Data retention: 100 years

Detailed Pin Configuration

The AT25040B-SSHL-B has a standard 8-pin SOIC package with 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. VCC (Power supply)
7. Ground (GND)
8. Hold (/HOLD)

Functional Features

• Byte-level read and write operations: Allows for efficient data manipulation.
• Software and hardware protection mechanisms: Protects data integrity and prevents unauthorized access.
• Sequential and random read modes: Provides flexibility in accessing stored data.
• Write protection: Ensures data security by preventing accidental or unauthorized writes.

Advantages and Disadvantages

Advantages

• Compact size and low power consumption make it suitable for portable devices.
• High endurance and long data retention ensure reliable performance.
• Wide operating voltage range allows compatibility with various systems.
• Easy integration into existing designs due to standard interface and pin configuration.

Disadvantages

• Limited storage capacity compared to other memory technologies.
• Relatively slower read and write speeds compared to some alternatives.
• Susceptible to electromagnetic interference, requiring proper shielding in sensitive applications.

Working Principles

The AT25040B-SSHL-B utilizes the Serial Peripheral Interface (SPI) protocol for communication with the host device. It stores data in a grid of memory cells that can be electrically programmed and erased. The chip's control logic enables reading, writing, and erasing of individual bytes or larger blocks of data.

Detailed Application Field Plans

The AT25040B-SSHL-B finds application in various fields, including: 1. Automotive electronics: Used for storing vehicle configuration data, mileage records, and firmware updates. 2. Industrial automation: Enables parameter storage, calibration data, and event logging in industrial control systems. 3. Consumer electronics: Utilized in smart TVs, set-top boxes, and gaming consoles for firmware storage and user settings. 4. Medical devices: Stores patient data, device configurations, and software updates in medical equipment.

Detailed and Complete Alternative Models

1. AT25080B-SSHL-B: Similar to AT25040B-SSHL-B but with double the memory capacity (8 kilobits).
2. AT25160B-SSHL-B: Offers 16 kilobits of memory, suitable for applications requiring larger storage capacity.
3. AT25320B-SSHL-B: Provides 32 kilobits of memory, ideal for more data-intensive applications.

These alternative models offer increased storage capacity while maintaining similar characteristics and compatibility with the AT25040B-SSHL-B.

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