AT24C128C - XHM - T: Unveiling the Versatile EEPROM for Diverse Applications

The AT24C128C - XHM - T, developed by Microchip, is a high - performing Electrically Erasable Programmable Read - Only Memory (EEPROM) that has found its place in a multitude of electronic applications.
1. Key Features
a. High - Capacity Storage
The AT24C128C - XHM - T offers a substantial storage capacity of 128Kbit (16KB), organized as 16K x 8 bits. This large - scale storage is a boon for applications that need to store significant amounts of data. In industrial data - logging systems, for example, it can store long - term sensor readings, historical process data, and device - specific configuration settings. This ensures that crucial information is retained for analysis and system optimization.
b. I²C Interface
Equipped with an I²C (Inter - Integrated Circuit) interface, the AT24C128C - XHM - T provides a simple and efficient means of communication. The I²C protocol is well - known for its multi - master/slave architecture, enabling seamless integration with a variety of other I²C - compatible devices such as microcontrollers, microprocessors, and sensors. A microcontroller can easily communicate with the AT24C128C - XHM - T to read or write data, simplifying the overall system design and reducing the number of required connections.
c. Non - Volatile Memory
One of the fundamental and highly - valued features of the AT24C128C - XHM - T is its non - volatile nature. Data stored in this EEPROM remains intact even when the power supply is interrupted. This is of utmost importance in applications where data integrity is critical. In medical devices, like patient monitors, the AT24C128C - XHM - T can store patient - specific data, diagnostic results, and device - calibration information. The non - volatile storage ensures that this vital data is preserved during power outages, safeguarding patient care.
d. High Endurance and Data Retention
The AT24C128C - XHM - T is designed to endure a large number of write - erase cycles, making it suitable for applications where data is frequently updated. Additionally, it offers excellent data retention over an extended period. In automotive electronics, for instance, where it may be used to store engine control unit (ECU) calibration data or diagnostic trouble codes, the ability to withstand numerous write - erase operations and retain data for a long time is essential. The harsh automotive environment, with its temperature variations and electrical noise, requires components with such robust characteristics.
e. Wide Operating Voltage and Temperature Ranges
It operates within a relatively wide power supply voltage range of 1.7V to 5.5V. This allows it to be used in different power - supply scenarios, from low - voltage battery - powered devices to those with standard higher - voltage sources. The operating temperature range of - 40°C to + 85°C makes it suitable for use in various environments, including industrial settings, automotive applications, and consumer electronics that may be exposed to different temperature conditions.
2. Applications
a. Industrial Applications
In industrial settings, the AT24C128C - XHM - T is widely used in programmable logic controllers (PLCs). PLCs can utilize it to store complex control programs, historical process data, and user - defined settings. In a manufacturing plant, for example, the PLC may use the EEPROM to store the sequence of operations for a particular production line, as well as any historical data related to the line's performance over time. Industrial robots can also benefit from the AT24C128C - XHM - T by storing movement patterns, calibration data, and maintenance - related information.
b. Consumer Electronics
Consumer electronics such as smart TVs, set - top boxes, and digital cameras rely on the AT24C128C - XHM - T for storing user - specific settings. In a smart TV, it can store channel preferences, picture and sound calibration settings, and installed applications' data. In a digital camera, the EEPROM can be used to store image - processing algorithms, camera - specific settings, and even some low - resolution preview images, enhancing the user experience.
c. Automotive Electronics
In the automotive industry, the AT24C128C - XHM - T plays a crucial role. It can be used in engine control units (ECUs) to store critical engine calibration data, which affects the engine's performance, fuel efficiency, and emissions. In in - car infotainment systems, it can store user - selected audio and video settings, navigation maps, and contact information for hands - free calling. The non - volatile nature and high endurance of the EEPROM ensure reliable operation in the demanding automotive environment.
d. Medical Electronics
Medical devices like patient monitors, diagnostic equipment, and infusion pumps can use the AT24C128C - XHM - T. In a patient monitor, it can store patient - specific data such as vital signs, historical health records, and device - calibration parameters. In diagnostic equipment, the EEPROM can hold software algorithms for data analysis and patient - specific diagnostic results. The non - volatile storage and high - reliability features of the AT24C128C - XHM - T are essential for ensuring accurate and continuous patient care.
In summary, the AT24C128C - XHM - T is a versatile and reliable EEPROM. Its high - capacity storage, I²C interface, non - volatile memory characteristics, high endurance, and wide operating ranges make it an ideal choice for a broad spectrum of applications across different industries. Whether in industrial control, consumer electronics, automotive, or medical electronics, this EEPROM provides a stable and efficient solution for data storage and management.

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Part Number	AT24C128C-SSHM-T	AT24C128C-XHM-T	AT24C128C-MAHM-T	AT24C128C-XHM-B	AT24C128C-MAHM-E
Manufacturer	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology	Microchip Technology
Series	-	-	-	-	-
Package/Case	8-SOIC (0.154", 3.90mm Width)	8-TSSOP (0.173", 4.40mm Width)	8-UFDFN Exposed Pad	8-TSSOP (0.173", 4.40mm Width)	8-UFDFN Exposed Pad
Packaging	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Tube	Tape & Reel (TR)
Product Status	Active	Active	Active	Active	Active
Programmable	Verified	Not Verified	Not Verified	Not Verified	Not Verified
Memory Type	Non-Volatile	Non-Volatile	Non-Volatile	Non-Volatile	Non-Volatile
Memory Format	EEPROM	EEPROM	EEPROM	EEPROM	EEPROM
Technology	EEPROM	EEPROM	EEPROM	EEPROM	EEPROM
Memory Size	128Kbit	128Kbit	128Kbit	128Kbit	128Kbit
Memory Organization	16K x 8	16K x 8	16K x 8	16K x 8	16K x 8
Memory Interface	I2C	I2C	I2C	I2C	I2C
Clock Frequency	1 MHz	1 MHz	1 MHz	1 MHz	1 MHz
Write Cycle Time - Word, Page	5ms	5ms	5ms	5ms	5ms
Access Time	550 ns	550 ns	550 ns	550 ns	550 ns
Voltage - Supply	1.7V ~ 5.5V	1.7V ~ 5.5V	1.7V ~ 5.5V	1.7V ~ 5.5V	1.7V ~ 5.5V
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Grade	-	-	-	-	-
Qualification	-	-	-	-	-
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Supplier Device Package	8-SOIC	8-TSSOP	8-UDFN (2x3)	8-TSSOP	8-UDFN (2x3)