AT24CM02-SSHD-T EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The AT24CM02-SSHD-T is a 2Mbit EEPROM memory IC manufactured by Microchip Technology, designed for non-volatile data storage applications requiring I2C serial interface communication. This device operates at 1 MHz clock frequency with 450 ns access time and supports a supply voltage range of 2.5V to 5.5V. The component is currently in active production status with verified programmability through DiGi-Electronics. Substitute parts are identified when equivalent electrical specifications, memory capacity, interface protocol, and physical packaging are maintained across different manufacturers, ensuring functional interchangeability in circuit designs.

Substiute Parts

AT24CM02-SSHD-T

Microchip TechnologyIn Stock: 6175AT24CM02-SSHD-T Datasheet

Current PartRFQ

M24M02-DRMN6TP

STMicroelectronicsIn Stock: 26110M24M02-DRMN6TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AT24CM02-SSHD-T is determined by strict equivalence across the following critical parameters:

• Memory capacity: 2Mbit (256K x 8 organization)
• Interface protocol: I2C serial communication
• Clock frequency: 1 MHz operation
• Access time: 450 ns
• Write cycle time: 10 ms per page
• Physical package: 8-SOIC form factor with 3.90mm width
• Surface mount compatibility
• Operating temperature range: -40°C to 85°C
• RoHS3 compliance status

The M24M02-DRMN6TP from STMicroelectronics meets all these criteria and is classified as a manufacturer-recommended equivalent. Substitution is valid when the application circuit design does not depend on voltage supply floor specifications below 1.8V, as this represents the only parameter variance between the main part and its substitute.

Parameter Comparison

Engineering Selection Recommendations

Both the AT24CM02-SSHD-T and M24M02-DRMN6TP are active production components with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for electronic component manufacturing and use.

The M24M02-DRMN6TP offers extended voltage supply floor specification (1.8V minimum versus 2.5V minimum), providing operational capability in lower-voltage system designs. The STMicroelectronics substitute also features superior moisture sensitivity classification (MSL 1 unlimited versus MSL 3 168-hour limit), indicating reduced sensitivity to moisture absorption during storage and handling.

Selection between these parts should be based on supply voltage requirements of the target application circuit. If the design operates at or above 2.5V supply voltage, either part is functionally equivalent. For applications requiring operation below 2.5V supply voltage, the M24M02-DRMN6TP is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can the M24M02-DRMN6TP directly replace the AT24CM02-SSHD-T in existing circuit designs?

A: Yes, when the application circuit supply voltage operates at 2.5V or higher. Both devices share identical memory capacity (2Mbit), I2C interface protocol, clock frequency (1 MHz), access time (450 ns), and 8-SOIC package dimensions. No circuit modifications are required for pin-compatible substitution.

Q: What is the significance of the voltage supply range difference?

A: The M24M02-DRMN6TP supports operation down to 1.8V supply voltage, while the AT24CM02-SSHD-T minimum is 2.5V. This difference is relevant only for applications designed to operate at supply voltages between 1.8V and 2.5V. Standard 3.3V and 5V system designs are unaffected by this specification variance.

Q: Are the package dimensions identical between these parts?

A: Yes. Both components use the 8-SOIC package with 0.154 inch (3.90mm) width specification. PCB footprints, solder pad layouts, and mechanical mounting requirements are identical, enabling direct board-level substitution without layout modifications.

Q: What does the moisture sensitivity level difference indicate?

A: The M24M02-DRMN6TP carries MSL 1 (unlimited moisture exposure tolerance), while the AT24CM02-SSHD-T carries MSL 3 (168-hour moisture exposure limit). MSL 1 classification indicates superior moisture resistance and reduced risk of moisture-related failures during extended storage or humid environment exposure. This represents an advantage for the STMicroelectronics part in supply chain and storage scenarios.

Q: Are both parts currently available for new designs?

A: Yes. Both the AT24CM02-SSHD-T and M24M02-DRMN6TP maintain active production status with verified programmability certification through DiGi-Electronics, confirming suitability for new design implementations.