AT24C08BN-SH-T: Description, Features, and Applications

What is AT24C08BN-SH-T?

Microchip Technology created the 8-kilobit (1K x 8) serial EEPROM (Electrically Erasable Programmable Read-Only Memory) AT24C08BN-SH-T. It is a non-volatile memory device that uses the I2C (Inter-Integrated Circuit) bus protocol to facilitate simple communication with microcontrollers or other devices while storing data safely and effectively.

This EEPROM model's small size, great reliability, and low power consumption make it popular in consumer electronics, automotive applications, and embedded systems. It is perfect for systems that need reliable and long-lasting storage solutions because it offers effective data retention for prolonged periods of time.

AT24C08BN-SH-T Pinout

Key Features of AT24C08BN-SH-T

The AT24C08BN-SH-T is a serial EEPROM memory device from Microchip Technology, specifically designed for applications requiring low power consumption and reliable data retention. Here are its key features:

Memory Capacity: The device has an 8K-bit memory organized as 1,024 x 8 bits, allowing for efficient data storage and retrieval.

Interface: It utilizes a Two-wire Serial Interface (I2C), which facilitates easy communication with microcontrollers and other devices. The device supports a maximum clock frequency of 1 MHz, ensuring fast data transfer rates.

Operating Voltage: The AT24C08BN-SH-T operates within a voltage range of 1.8V to 5.5V, making it suitable for low-voltage applications.

Data Protection: It includes a write protect pin, providing an additional layer of security against accidental data modification.

Write Cycle Time: The EEPROM features a self-timed write cycle with a maximum duration of 5 milliseconds, allowing for quick updates to stored data.

Endurance and Data Retention: The device is rated for 1 million write cycles and offers data retention of up to 100 years, ensuring long-term reliability in storage applications.

Package Options: It is available in various package types, including the 8-lead SOIC, which is compact and suitable for space-constrained designs.

Low Power Consumption: Designed for efficiency, the AT24C08BN-SH-T consumes minimal power during operation, making it ideal for battery-operated devices.

These features make the AT24C08BN-SH-T a versatile choice for various industrial and commercial applications where reliable memory storage is crucial.

AT24C08BN-SH-T Specifications

Advantages of Using AT24C08BN-SH-T

The AT24C08BN-SH-T EEPROM offers several advantages that make it a preferred choice for various applications. Here are some key benefits:

Non-Volatile Memory: The AT24C08BN-SH-T retains data even when power is removed, making it ideal for storing critical information in consumer electronics, embedded systems, and portable devices.

Low Power Consumption: It operates with a maximum standby current of just 1 μA and an active current of 3 mA, which is beneficial for battery-operated devices and energy-efficient applications.

Wide Operating Voltage Range: The device supports a voltage range of 1.8V to 5.5V, allowing it to be used in various low-voltage applications while maintaining compatibility with standard voltage systems.

High Endurance and Data Retention: With a write endurance of 1 million cycles and a data retention guarantee of up to 100 years, the AT24C08BN-SH-T ensures long-term reliability for stored data.

Fast Data Access: The device features a maximum access time of 900 ns, enabling quick-read operations, which is crucial for applications requiring rapid data retrieval.

I2C Interface: Utilizing a two-wire I2C interface simplifies connections and allows multiple devices to share the same bus, making it easier to integrate into existing systems.

Compact Package: Housed in an SOP-8 package, the AT24C08BN-SH-T is space-efficient, making it suitable for compact electronic designs where board space is limited.

Write Protection: The inclusion of a hardware write protect pin enhances data security by preventing accidental writes during critical operations.

These advantages make the AT24C08BN-SH-T an excellent choice for applications in consumer electronics, embedded systems, networking equipment, and portable devices, where reliable non-volatile memory is essential.

AT24C08BN-SH-T Applications

The AT24C08BN-SH-T EEPROM is widely used in various applications due to its non-volatile memory capabilities and efficient data storage features. Here are some common applications:

Consumer Electronics:

Used in devices such as televisions, DVD players, and remote controls to store user settings, configurations, and preferences.

Embedded Systems:

Employed in microcontroller-based projects for storing firmware, calibration data, and user-defined settings.

Computers and Peripherals:

Utilized keyboards, mice, and other peripherals to retain configuration scripts and user preferences.

Networking Equipment:

Found in switches, routers, and network interface cards for storing MAC addresses, device configurations, and operational settings.

Portable Devices:

Used in portable electronics like digital cameras, MP3 players, and handheld gaming consoles to save configuration settings, firmware updates, and user preferences.

Industrial Applications:

Integrated into industrial control systems for storing critical data such as calibration information and operational parameters.

The AT24C08BN-SH-T's ability to retain data across power cycles makes it essential in many electronic devices that require reliable non-volatile memory solutions.

AT24C08BN-SH-T Equivalents

The AT24C08BN-SH-T EEPROM has several equivalent alternatives that can be used in similar applications. Here’s a list of notable substitutes:

These alternatives provide similar functionalities and can be used interchangeably in many applications requiring non-volatile memory storage, depending on specific voltage and performance requirements.

AT24C08BN-SH-T Compared to Other EEPROMs

The AT24C08BN-SH-T is an 8Kbit EEPROM with a fast access time of 550 ns and a clock frequency of 1 MHz. It operates over a wide voltage range (1.8V to 5.5V) and has a typical write cycle time of 5 ms, offering a high endurance of around 1 million write cycles. This makes it suitable for many general-purpose memory storage applications where size and speed are critical.

In comparison, the AT24C08B-TH-T is similar in memory size and voltage range but has a slower access time (900 ns) and a lower clock frequency (400 kHz). The AT24C32CN-SH-B offers four times the memory size (32 Kbit) but operates at a lower maximum voltage (3.6V). Its performance is generally similar in terms of endurance and write cycle time, though access time is not specifically stated.

The AT24C64D-SSHM-B provides an even larger memory size (64 Kbit) with similar endurance and write cycle characteristics. It has a slower access time (900 ns) compared to the AT24C08BN-SH-T, but the operating voltage range is comparable.

Overall, the AT24C08BN-SH-T is a solid choice for applications requiring smaller memory sizes and faster access times, while the other options are better suited for applications requiring larger memory capacities or slightly different voltage characteristics.

Working Principle of AT24C08BN-SH-T

The AT24C08BN-SH-T is an 8Kb EEPROM that operates based on the I²C (Inter-Integrated Circuit) protocol, allowing for efficient data storage and retrieval. Below is a detailed explanation of its working principle:

1. Memory Organization

The AT24C08BN-SH-T is organized as 1024 words of 8 bits each, providing a total of 8192 bits (8 Kbits) of memory. This structure allows for efficient data management and access.

2. I²C Interface

Two-Wire Protocol: The device communicates over a two-wire interface consisting of a Serial Data Line (SDA) and a Serial Clock Line (SCL). This protocol allows multiple devices to be connected on the same bus, facilitating easy communication between the EEPROM and microcontrollers or other devices.

Data Transfer: Data is transferred in 8-bit words, with each transfer initiated by a start condition (a high-to-low transition on SDA while SCL is high) and terminated by a stop condition (a low-to-high transition on SDA while SCL is high).

3. Read and Write Operations

Write Operations: To write data, the device requires the following steps:

• Send a start condition.
• Transmit the device address along with a write command.
• Send the memory address where the data will be written.
• Transmit the data byte(s).
• End with a stop condition.

The AT24C08BN-SH-T includes self-timed write cycles, which means it manages its internal timing for writing data, typically taking up to 5 ms to complete a write operation.

Read Operations: Reading data follows a similar sequence:

• Initiate with a start condition.
• Send the device address with a read command.
• Specify the memory address from which to read.
• Receive the data byte(s) followed by an acknowledgment from the master device.
• Conclude with a stop condition.

4. Acknowledge Mechanism

After each byte of data is sent or received, an acknowledgment bit is used to confirm that the data was successfully transmitted. The master device must generate this acknowledgment by pulling the SDA line low during the acknowledgment clock pulse.

5. Power Supply and Endurance

The AT24C08BN-SH-T operates within a voltage range of 1.8V to 5.5V, making it suitable for low-power applications. It boasts an endurance of approximately 1 million write cycles and has a data retention period of up to 100 years, ensuring reliability in long-term storage scenarios.

6. Noise Suppression

The device features Schmitt Trigger inputs which help filter out noise from the SDA and SCL lines, ensuring stable communication even in electrically noisy environments.

In summary, the AT24C08BN-SH-T EEPROM utilizes I²C for communication, supports efficient read/write operations through structured addressing and acknowledgment protocols, and is designed for reliability and longevity in various applications.

AT24C08BN-SH-T Datasheet

AT24C08BN-SH-T Datasheet

Conclusion of AT24C08BN-SH-T

In summary, the AT24C08BN-SH-T stands out due to its compact design, ease of use with the I²C interface, and robust performance characteristics. Its low power consumption combined with high endurance and data retention capabilities make it an excellent choice for a wide range of applications requiring reliable non-volatile memory solutions. The AT24C08BN-SH-T is a versatile, high-reliability EEPROM solution ideal for applications requiring non-volatile memory. With its I2C interface, wide voltage range, and high endurance, it offers a robust and cost-effective storage solution across industries, including automotive, industrial automation, and consumer electronics.