AT24CS01-SSHM-T

Updated: 2026-07-21

Overview

The AT24CS01-SSHM-T is a 1Kbit serial EEPROM memory chip manufactured by Microchip Technology. It is designed for applications requiring reliable non-volatile memory with low power consumption. The chip operates over a wide voltage range and supports I2C communication, making it suitable for integration into various electronic systems. The AT24CS01-SSHM-T is often used in consumer electronics, automotive systems, and IoT devices where small amounts of configuration or calibration data need to be stored persistently. Its compact form factor and industry-standard interface simplify design-in for engineers.

Structure and Working Principle

The AT24CS01-SSHM-T consists of a memory array organized as 128x8 bits, with an I2C-compatible serial interface for communication. The chip includes built-in write protection features and supports both byte and page write operations (up to 8 bytes per page). Internally, the device uses floating gate technology to achieve non-volatile storage. Data retention is typically 100 years, with endurance rated for 1 million write cycles. The chip operates from 1.7V to 5.5V, making it compatible with both 3.3V and 5V systems.

Key Features

The AT24CS01-SSHM-T offers several notable features including ultra-low power consumption (active current typically 1mA, standby current <6μA). This makes it ideal for battery-powered applications. The device also features a unique 128-bit serial number for identification purposes. Other key features include industrial temperature range operation (-40°C to +85°C), Schmitt trigger inputs for noise suppression, and a 1MHz clock frequency. The device is available in space-saving 8-lead SOIC, TSSOP and UDFN packages.

Application Areas

This EEPROM is widely used in consumer electronics for storing device configuration, calibration data, and user settings. In automotive applications, it's used for storing mileage data, system parameters, and event logs. Industrial applications include industrial controls, medical devices, and smart meters. The chip's small footprint and low power consumption make it particularly suitable for IoT devices and wearable electronics where space and power are at a premium.

Maintenance and Precautions

When handling the AT24CS01-SSHM-T, proper ESD precautions should be observed as with all semiconductor devices. The chip should be stored in anti-static packaging when not in use. During board assembly, recommended reflow profiles should be followed to prevent thermal damage. In system design, ensure proper decoupling capacitors are placed near the power pins. The I2C lines should have appropriate pull-up resistors. Avoid exceeding maximum ratings for voltage, current, or temperature during operation or storage.

B2B Procurement Guide

When procuring the AT24CS01-SSHM-T in bulk, verify the manufacturer's authenticity through authorized distributors. Consider lead times which can vary from 8-12 weeks depending on market conditions. Minimum order quantities typically start at 1,000 pieces for best pricing. For production-critical applications, consider qualifying alternative part numbers from the same family (AT24CS02, AT24CS04) for flexibility. Request samples for testing before large-scale procurement. Check for industry-specific certifications if required for your application (AEC-Q100 for automotive, for example).