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Microchip Technology 24LC21A-I/SN Microcontrollers

IC EEPROM 1KBIT I2C 400KHZ 8SOIC

600 ActiveMicrochip Technology24LC218-SOIC (0.154", 3.90mm Width)$1.26
24LC21A-I/SN 8-SOIC (0.154", 3.90mm Width) package illustration

Same model may have multiple batches, images only for reference.

24LC21A-I/SN
Part Number (MPN)
24LC21A-I/SN
Base Model
Detailed Description
IC EEPROM 1KBIT I2C 400KHZ 8SOIC
Package
8-SOIC (0.154", 3.90mm Width)
Lifecycle Status
Active
Datasheet
PDF 24LC21A-I/SN Datasheet
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Ordering Code Family

24LC21 groups multiple orderable suffixes under one base device. Compare package, grade, and reel options on the base-number page before substituting within the family.

2 ordering variants listed on the family page.

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Technical Specifications

Microchip Technology 24LC21A-I/SN Microcontrollers technical specifications.

General

Interface
Serial-I2C
Memory Size
1Kb (128 x 8)
RoHS
Compliant
Number of Pins
8
Package / Case
8-SOIC
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
2.5V ~ 5.5V
Lifecycle Status
Active
Technology
EEPROM

Related Parts Comparison (24LC21A-I/SN vs 24LC21A/P vs 24LC21/SN vs 24LC21/P)

Side-by-side specifications of related catalog parts.

Engineering verification required. Related parts may have different electrical ratings, pinouts, footprints, and operating limits. Verify suitability for your circuit before substitution.

This PartRelated PartRelated PartRelated Part
Package / Case8-SOIC8-DIP8-SOIC8-DIP
Mounting TypeSurface MountThrough HoleSurface MountThrough Hole
Operating Temperature-40°C ~ 85°C (TA)0°C ~ 70°C (TA)0°C ~ 70°C (TA)0°C ~ 70°C (TA)
Supply Voltage2.5V ~ 5.5V2.5V ~ 5.5V2.5V ~ 5.5V2.5V ~ 5.5V
Memory Size1Kb (128 x 8)1Kb (128 x 8)1Kb (128 x 8)1Kb (128 x 8)
InterfaceSerial-I2CSerial-I2CSerial-I2CSerial-I2C
Number of Pins8888
RoHSCompliantCompliantCompliantCompliant
Lifecycle StatusActiveActiveActiveActive
Access Time900 ns900 ns900 ns900 ns
AutomotiveNoNoNoNo
Clock Frequency400 kHz400 kHz400 kHz400 kHz
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