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24LC21AT/SN
+StücklisteIC EEPROM 1KBIT I2C 400KHZ 8SOIC
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HerstellerMikrochip-Technologie
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Herstellerteil #24LC21AT/SN
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Datenblatt 24LC21AT/SN DataSheet
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Paket SOIC-8
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Auf Lager4371
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Spezifikationen
| Attribut | Wert |
| Package | Tape & Reel (TR),Cut Tape (CT) |
| ProductStatus | Active |
| MemoryType | Non-Volatile |
| MemoryFormat | EEPROM |
| Technology | EEPROM |
| MemorySize | 1Kb (128 x 8) |
| MemoryInterface | I²C |
| ClockFrequency | 400 kHz |
| WriteCycleTime-WordPage | 10ms |
| AccessTime | 900 ns |
| Voltage-Supply | 2.5V ~ 5.5V |
| OperatingTemperature | 0°C ~ 70°C (TA) |
| MountingType | Surface Mount |
| Package/Case | 8-SOIC (0.154, 3.90mm Width) |
Übersicht
Description
Key features of the 24LC21AT/SN include a wide operating voltage range from 1.7V to 5.5V, making it suitable for a variety of applications across different devices. It provides byte-level and page-level read/write operations, with a page size of 8 bytes. The EEPROM is designed for low power consumption, making it ideal for battery-operated devices. Additionally, it incorporates data protection mechanisms to prevent inadvertent writes and ensures data integrity. The 24LC21AT/SN’s compact size and robust performance make it an excellent choice for applications requiring reliable non-volatile memory storage.
Equivalent
1. AT24C02 by Atmel (now part of Microchip)
2. CAT24C02 by ON Semiconductor
3. ST24C02 by STMicroelectronics
4. BR24C02 by ROHM
Ensure compatibility by checking specific features like the operating voltage, temperature range, and I2C interface specifications.
Features
1. Memory Capacity: 128 x 8-bit organization.
2. I2C Interface: Uses I2C (Inter-Integrated Circuit) two-wire serial bus for communication, supporting standard (100 kHz) and fast (400 kHz) modes.
3. Operating Voltage: Operates in a range of 1.7V to 5.5V, making it suitable for various applications.
4. Low Power Consumption: Offers low power operation with typical standby and read/write power consumption levels.
5. Write Protection: Includes hardware write-protection to prevent accidental data overwrites.
6. Data Retention: Capable of retaining data for more than 200 years.
7. Endurance: Supports over 1 million erase/write cycles per byte.
8. Package Options: Available in 8-lead SOIC package.
9. Temperature Range: Operates within a temperature range of -40°C to +85°C.
These features make the 24LC21AT/SN suitable for applications requiring reliable and efficient non-volatile memory storage.
Pinout
1. VSS: Ground reference for the device.
2. SDA: Serial Data — serves as the data input/output line used for both receiving and sending data.
3. SCL: Serial Clock — used to synchronize data transfer between the device and the controller.
4. A2: Device Address Input — used to set the hardware address of the EEPROM.
5. A1: Device Address Input — used for additional address configuration.
6. A0: Device Address Input — further address configuration.
7. WP: Write-Protect — when connected to VCC, write operations to the entire memory array are inhibited.
8. VCC: Power Supply — provides the operating voltage for the device.
The 24LC21AT/SN is typically used in applications requiring low-power, non-volatile storage, suitable for data logging, configuration settings, and small data storage tasks.