Model No: AT24C128C-XHM-T

Microchip Technology AT24C128C-XHM-T

Manufacturer: Microchip Technology
SEMICON NO.: AT24C128C-XHM-T
Package: 8-TSSOP
Stock: In stock
Description: IC EEPROM Memory 128Kbit I2C 1MHz 550ns 8TSSOP
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 Mfr  Microchip Technology 
 Memory Technology   Electrically Erasable Programmable Read-Only Memory (EEPROM)
 Density / Organization  128 Kbit (16,384 words × 8 bits)
 Interface   I²C (2-Wire Serial)
 Maximum Clock Frequency (fCLK) 1 MHz
 Supply Voltage (VCC)   1.7 V to 5.5 V
 Write Cycle Time (tWC)  5 ms (max)
 Endurance (Write Cycles)  1,000,000 cycles (min)
 Data Retention 100 years (typ)
 Standby Current (ISB) 1 µA (max)
 Access Time  550 ns (typ)
 Operating Temperature -40°C to +85°C
 Package 8-TSSOP
 Mounting Type Surface Mount (SMD/SMT) 
 Compliance     RoHS Compliant
AT24C128C-XHM-T 128Kb I²C Serial EEPROM Memory IC
TheAT24C128C-XHM-T is a high-performance, electrically erasable programmable read-only memory (EEPROM) device from Microchip Technology, offering 128 Kbits (16,384 bytes) of non-volatile storage in a space-saving 8-pin TSSOP package. This serial EEPROM operates across a wide voltage range of 1.7V to 5.5V, making it highly compatible with both modern low-voltage microcontrollers and legacy 5V systems. It utilizes the industry-standard I²C (Two-Wire Serial Interface) protocol, supporting communication speeds up to 1 MHz for fast data access. Designed for reliability and endurance, it features a 1,000,000 write cycle endurance and 100-year data retention, making it an ideal solution for storing configuration parameters, calibration data, and user settings in applications where reliability is paramount.
AT24C128C-XHM-T EEPROM IC Key Features  ​
The chip is organized as 16,384 bytes of memory, accessible in 64-byte page write operations for efficient data storage. It supports both Standard (up to 100 kHz) and Fast (up to 400 kHz) I²C modes, as well as Fast-Plus Mode (up to 1 MHz) for high-speed system integration. The device includes advanced write protection features, with a hardware Write-Protect (WP) pin and software-controlled partial array protection to safeguard critical memory sections. Additional reliability features include built-in noise protection filters and Schmitt Trigger inputs for robust performance in electrically noisy environments. The AT24C128C also supports sequential read operations and features an extended operating temperature range of -40°C to 85°C, ensuring reliable performance across diverse application environments.
Alternative EEPROM Memory Models
● 24AA128T-I/SN (Microchip Technology): A 128 Kbit I²C EEPROM featuring 1 MHz operation and 5 ms write cycle time, optimized for high-speed system integration.
● CAT24C128WI-GT3 (onsemi): A 128 Kbit serial EEPROM with 1 MHz Fast Mode Plus capability, offering advanced write protection and industrial temperature range.
● BR24L128F-WE2 (ROHM Semiconductor): A 128 Kbit I²C EEPROM with ultra-low power consumption (1.7V operation) and 1,000,000 write cycles, ideal for battery-operated devices.
● M24M128-RMN6TP (STMicroelectronics): A 128 Kbit serial EEPROM with 1 MHz I²C interface, featuring enhanced ESD protection and automotive-grade variants for harsh environments.