24LC21AT/SN
- Mfr.Part #
- 24LC21AT/SN
- Manufacturer
- Microchip Technology
- Package / Case
- 8-SOIC (0.154, 3.90mm Width)
- Datasheet
- Download
- Description
- IC EEPROM 1KBIT I2C 400KHZ 8SOIC
- Stock
- 3,292
- In Stock :
- 3,292
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- Manufacturer :
- Microchip Technology
- Product Category :
- Memory
- Operating Supply Voltage (Typ) :
- 3.3/5(V)
- Number of Words :
- 128 words
- Reach Compliance Code :
- Compliant
- Data Retention Time-Min :
- 200
- Power Supplies :
- 3/5V
- Programmable :
- yes
- Rad Hardened :
- No
- Supplier Device Package :
- 8-SOIC
- Supply Current-Max :
- 0.003 mA
- Memory Density :
- 1024 bit
- I2C Control Byte :
- 1010000R
- Operating Temperature :
- 0°C~70°C TA
- Length :
- 4.9mm
- Height Seated (Max) :
- 1.75mm
- Published :
- 2005
- JESD-30 Code :
- R-PDSO-G8
- Endurance :
- 1000000 Write/Erase Cycles
- Terminal Form :
- Gull wing
- Operating Supply Voltage (Max) :
- 5.5(V)
- Data Retention :
- 200
- Packaging :
- Tape and Reel (TR)
- Width :
- 3.9mm
- Operating Mode :
- SYNCHRONOUS
- Memory Width :
- 8
- Terminal Finish :
- Matte Tin (Sn)
- ECCN Code :
- EAR99
- Organization :
- 128X8
- Access Time :
- 900ns
- Mount :
- Surface Mount
- Write Protection :
- yes
- RoHS Status :
- ROHS3 Compliant
- Pin Count :
- 8
- Memory Interface :
- I2C
- Package / Case :
- 8-SOIC (0.154, 3.90mm Width)
- Operating Supply Current :
- 1 mA
- Number of Terminations :
- 8
- Mounting :
- Surface Mount
- Programming Voltage :
- 2.5 TO 5.5
- Number of Pins :
- 8
- Pbfree Code :
- yes
- Write Cycle Time - Word, Page :
- 10ms
- Mounting Type :
- Surface Mount
- RoHS :
- Details
- Product Category :
- EEPROM
- Qualification Status :
- Not Qualified
- Maximum Operating Temperature :
- + 70 C
- Frequency :
- 0.4(MHz)
- Factory Lead Time :
- 6 Weeks
- Radiation Hardening :
- No
- Supply Current :
- 3(mA)
- Number of Functions :
- 1
- Operating Supply Voltage (Min) :
- 2.5(V)
- Memory Type :
- Non-Volatile
- Density :
- 1 kb
- Mounting Style :
- SMD/SMT
- Output Characteristics :
- OPEN-DRAIN
- Peak Reflow Temperature (Cel) :
- 260
- Memory Size :
- 1Kb 128 x 8
- Operating Temperature Classification :
- COMMERCIAL
- Surface Mount :
- yes
- Package Type :
- SOIC N
- Operating Temperature (Min) :
- 0C
- Supply Voltage :
- 3V
- Terminal Pitch :
- 1.27mm
- HTS Code :
- 8542.32.00.51
- Memory IC Type :
- EEPROM
- Series :
- --
- Subcategory :
- Memory and Data Storage
- Product Type :
- EEPROM
- Contact Plating :
- Tin
- Operating Supply Voltage :
- 2.5 V to 5.5 V
- Memory Format :
- EEPROM
- Interface Type :
- Serial (I2C)
- Minimum Operating Temperature :
- 0 C
- Parallel/Serial :
- Serial
- Memory Organization :
- 128 x 8
- Number of Terminals :
- 8
- Terminal Position :
- Dual
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Voltage - Supply :
- 2.5V~5.5V
- Temperature Grade :
- COMMERCIAL
- Time@Peak Reflow Temperature-Max (s) :
- 40
- Lead Free :
- Lead Free
- Operating Temperature (Max) :
- 70C
- Interface :
- I2C, Serial
- Height :
- 1.25 mm (Min)
- Supply Voltage-Min (Vsup) :
- 2.5V
- Standby Current-Max :
- 0.00003A
- Nominal Supply Current :
- 3mA
- Clock Frequency :
- 400kHz
- Seated Height-Max :
- 1.75 mm
- Base Part Number :
- 24LC21A
- Package :
- Tape and Reel (TR);Cut Tape (CT);Digi-Reel®;
- Package Shape :
- RECTANGULAR
- Manufacturer :
- Microchip
- Base Product Number :
- 24LC21
- Brand :
- Microchip Technology
- Product Status :
- Active
- Write Cycle Time-Max (tWC) :
- 10ms
- Access Time (Max) :
- 900(ns)
- Serial Bus Type :
- I2C
- JESD-609 Code :
- e3
- Operating Temp Range :
- 0C to 70C
- Supply Voltage-Max (Vsup) :
- 5.5V
- Datasheets
- 24LC21AT/SN

Memory Microchip Technology 24LC21AT/SN Overview
The Memory Microchip Technology 24LC21AT/SN is a state-of-the-art EEPROM IC designed for high reliability and efficiency. Crafted by the renowned Microchip Technology, this EEPROM offers a compact solution with a 1 Kbit storage capacity, ideal for applications requiring small data buffers. Its I2C interface facilitates simple and fast data transfer at speeds up to 400 kHz, making it highly suitable for modern electronic systems where space and power consumption are critical considerations. The small footprint of the 8SOIC package also ensures ease of integration into existing designs, enhancing system stability and data integrity.
24LC21AT/SN Features
The 24LC21AT/SN EEPROM includes several key features that make it highly adaptable and efficient for a wide range of uses:
- 1 Kbit of memory capacity, ideal for storing configuration settings and other small data requirements.
- I2C serial interface, ensuring compatibility with most microcontrollers and facilitating easy integration.
- Operation at a frequency of up to 400 kHz, allowing for quick data access and programming.
- Low-voltage operation, which helps to minimize power consumption and extend battery life in portable devices.
- Durable 8SOIC packaging, providing robust protection against physical and environmental factors.
24LC21AT/SN Applications
- Consumer Electronics: Used in TVs, home audio systems, and other consumer electronics for storing user settings and preferences. This allows devices to "remember" user configurations between power cycles.
- Medical Devices: Implements in portable medical monitoring devices, ensuring calibration data and device settings are retained securely and accurately.
- Industrial Automation: Provides memory solutions for small-scale automation controllers and sensors, facilitating complex machine-to-machine communication with reliable data storage.
- Automotive Applications: Integrates into automotive systems for storing non-volatile data essential for operation, such as user settings and fault codes.
- Telecommunication Equipment: Utilized in network devices like routers and switches for storing firmware settings and operational parameters to ensure network reliability and performance.
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