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25LC320AT-E/SN
+BOMIC EEPROM 32KBIT SPI 10MHZ 8SOIC
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ManufacturerMicrochip Technology
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Mfr. Part #25LC320AT-E/SN
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Datasheet 25LC320AT-E/SN DataSheet
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In Stock9370
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Specifications
| Attribute | Value |
| Part Status | Active |
| Digi Key Programmable | Verified |
| Memory Type | Non-Volatile |
| Memory Format | EEPROM |
| Technology | EEPROM |
| Memory Size | 32Kbit |
| Memory Organization | 4K x 8 |
| Memory Interface | SPI |
| Write Cycle Time - Word, Page | 5ms |
| Voltage - Supply | 2.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC |
| Base Product Number | 25LC320 |
| Clock Frequency | 10 MHz |
Overview
Description
Notably, the 25LC320AT-E/SN includes a write protection mechanism to safeguard data integrity, which is crucial in applications where data preservation is critical. Its endurance rating is 1,000,000 write cycles per byte, and it has a data retention span of over 200 years, ensuring long-term reliability. The package type is an 8-pin SOIC (Small Outline Integrated Circuit), which is compact and suitable for space-constrained designs. Typical applications include data logging, configuration storage, and any embedded systems requiring reliable and non-volatile memory storage solutions.
Equivalent
1. AT25M02 by Microchip Technology
2. M95M02 by STMicroelectronics
3. CAT25M02 by ON Semiconductor
4. MX25L3206E by Macronix
These components share similar communication protocols and memory sizes, though it's essential to verify specific electrical characteristics and package compatibility when considering substitutions.
Features
1. Interface: It uses a Serial Peripheral Interface (SPI) for communication, supporting SPI modes 0 and 3, which ensures compatibility with a wide range of microcontrollers.
2. Capacity: Offers 32 Kbits of memory, organized as 4,096 bytes, making it suitable for small data storage needs.
3. Voltage Range: Operates in a wide voltage range from 1.8V to 5.5V, which provides flexibility for various applications.
4. Speed: Supports a clock frequency of up to 10 MHz, facilitating fast data transfer rates.
5. Write Protection: Equipped with a write-protect pin that allows for hardware-based write protection of the entire memory.
6. Endurance and Retention: Features high endurance with over 1 million erase/write cycles per byte and a data retention of over 200 years.
7. Packaging: Available in an 8-pin SOIC package, which is compact and easy to integrate into different circuit designs.
These features make the 25LC320AT-E/SN suitable for applications in consumer electronics, automotive, and other embedded systems where reliable data storage is needed.
Pinout
The chip comes in an 8-lead SOIC (Small Outline Integrated Circuit) package, meaning it has 8 pins. The functions of these pins are as follows:
1. CS (Chip Select): Activates the device when low.
2. SO (Serial Output): Outputs data from the EEPROM.
3. WP (Write Protect): Disables all write operations if connected to VCC.
4. VSS: Ground reference for the device.
5. SI (Serial Input): Inputs data to the EEPROM.
6. SCK (Serial Clock): Provides the clock signal for SPI operations.
7. HOLD: Pauses the serial communication without resetting the device.
8. VCC: Power supply pin for the device, typically 1.8V to 5.5V.
These pin functions allow the 25LC320AT-E/SN to interface with a microcontroller via the SPI protocol for efficient data storage and retrieval.
Manufacturer
Application
1. Consumer Electronics: Storing settings/configurations in devices like TVs, remote controls, and audio systems.
2. Automotive: Retaining calibration data, system settings, and error logs in control systems.
3. Industrial: Data logging and configuration storage in machinery and control systems.
4. Medical Devices: Maintaining user settings and history data.
5. Communication Equipment: Configurations and temporary data storage in routers and networking devices.
6. Computers: BIOS and peripheral device settings.
The EEPROM's non-volatile nature makes it ideal for applications requiring reliable data retention without power.