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AT24C128 EEPROM IC – 128Kbit, I2C, 2.7V to 5.5V, Ideal for Data Storage

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Product SKU: INTEG349

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Highlights

Original, High Quality
KitsGuru Warranty
128Kbit EEPROM
I2C interface
2.7V–5.5V operation
1 MHz speed at 5V
Write-protect pin
64-byte page write

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Warehouse Details 36H-170O

Specification

Description

AT24C128 EEPROM IC – 128Kbit, I2C, 2.7V to 5.5V, Ideal for Data Storage

The AT24C128 is a 128Kbit CMOS non-volatile serial EEPROM organized as 16K x 8-bit memory. This device conforms to Extended IIC 2-wire protocol that allows accessing of memory in excess of 16Kbit on an IIC bus. This serial communication protocol uses a Clock signal (SCL) and a Data signal (SDA) to synchronously clock data between a master (e.g. a microcontroller) and a slave (EEPROM). FM24C128 is designed to minimize pin count and simplify PC board layout requirements.

Technical Details

Internally organized as 16,384 x 8 (128Kb) and 32,768 x 8 (256Kb)
Two-wire I2C serial interface
Schmitt Trigger inputs with noise filtering
Supports bidirectional data transfer protocol
1 MHz operation at 5V; 400 kHz at 2.7V; 100 kHz at 1.8V
Write-protect pin for hardware/software data protection
64-byte page write mode with partial page write support
Self-timed write cycle: max 5 ms

Features

Internally organized as 16,384 x 8 (128Kb) and 32,768 x 8 (256Kb)
Two-wire I2C serial interface
Schmitt Trigger inputs with noise filtering
Supports bidirectional data transfer protocol
1 MHz operation at 5V; 400 kHz at 2.7V; 100 kHz at 1.8V
Write-protect pin for hardware/software data protection
64-byte page write mode with partial page write support
Self-timed write cycle: max 5 ms

Applications

Embedded systems: Ideal for storing non-volatile configuration data in microcontroller applications.

Microcontroller-based projects: Used to save user preferences, logs, or calibration settings.

IoT devices: Suitable for compact, low-power systems requiring secure data logging.

Consumer electronics: Commonly used in devices like TVs, cameras, set-top boxes, and routers.