AT45DB041E-SSHNHT-B

Product Overview

Category

AT45DB041E-SSHNHT-B belongs to the category of flash memory integrated circuits.

Use

This product is primarily used for data storage and retrieval in various electronic devices such as smartphones, tablets, digital cameras, and portable media players.

Characteristics

• Non-volatile: The stored data is retained even when power is removed.
• High capacity: The AT45DB041E-SSHNHT-B has a storage capacity of 4 megabits (512 kilobytes).
• Fast access time: It provides quick access to stored data, reducing latency.
• Low power consumption: This flash memory IC is designed to minimize power usage, making it suitable for battery-powered devices.
• Reliable: The AT45DB041E-SSHNHT-B offers high endurance and data retention reliability.

Package

The AT45DB041E-SSHNHT-B is available in a small form factor package, which makes it suitable for space-constrained applications. It is commonly found in an 8-pin SOIC (Small Outline Integrated Circuit) package.

Essence

The essence of the AT45DB041E-SSHNHT-B lies in its ability to provide reliable and high-capacity data storage in a compact package, catering to the needs of modern electronic devices.

Packaging/Quantity

This flash memory IC is typically sold in reels or tubes, with each reel or tube containing a specific quantity of AT45DB041E-SSHNHT-B chips. The exact quantity may vary depending on the manufacturer and distributor.

Specifications

• Storage Capacity: 4 megabits (512 kilobytes)
• Interface: Serial Peripheral Interface (SPI)
• Supply Voltage: 2.7V - 3.6V
• Operating Temperature Range: -40°C to +85°C
• Data Retention: Up to 20 years
• Endurance: 10,000 write cycles per sector

Detailed Pin Configuration

The AT45DB041E-SSHNHT-B has a total of 8 pins, each serving a specific purpose. The pin configuration is as follows:

1. Chip Select (/CS): This pin is used to enable or disable the device for communication.
2. Serial Clock (SCK): It provides the clock signal for synchronous data transfer.
3. Serial Data Input (SI): This pin receives data from the external device during write operations.
4. Serial Data Output (SO): It transmits data from the device to the external device during read operations.
5. Write Protect (/WP): When this pin is held low, it protects the memory array from accidental writes.
6. Ground (GND): This pin is connected to the ground reference of the system.
7. Power Supply (VCC): It is the positive supply voltage pin.
8. Hold (/HOLD): This pin is used to pause ongoing operations without resetting the device.

Functional Features

1. Page Program Operation

The AT45DB041E-SSHNHT-B supports page program operation, allowing data to be written in page-sized increments. This feature enables efficient and fast programming of the flash memory.

2. Continuous Read Mode

This flash memory IC offers continuous read mode, enabling sequential access to multiple memory locations without the need for readdressing. It enhances data retrieval speed and efficiency.

3. Sector Erase Capability

The AT45DB041E-SSHNHT-B supports sector erase capability, which allows erasing of large blocks of memory at once. This feature simplifies the process of clearing data and preparing the memory for new information.

4. Software Protection

To prevent unauthorized access and modification of stored data, this flash memory IC provides software protection mechanisms. It allows users to set password protection and lock specific memory sectors.

Advantages and Disadvantages

Advantages

• High storage capacity for a wide range of applications.
• Fast access time improves overall system performance.
• Low power consumption extends battery life in portable devices.
• Reliable data retention ensures long-term usability.
• Compact package size suits space-constrained designs.

Disadvantages

• Limited endurance compared to other non-volatile memory technologies.
• Relatively higher cost per bit compared to some alternative memory solutions.
• Requires an external microcontroller or host device for operation.

Working Principles

The AT45DB041E-SSHNHT-B utilizes the Serial Peripheral Interface (SPI) protocol to communicate with an external microcontroller or host device. It stores data in a non-volatile manner using floating-gate transistors, which trap charge to represent binary information.

During write operations, data is transferred from the external device to the flash memory IC through the SI pin. The data is then programmed into the memory cells using a combination of electrical charges. Reading data involves transferring it from the memory cells to