AT24C01C-XPD-T Equivalent & Substitute Parts

Part Overview

The AT24C01C-XPD-T is a 1Kbit EEPROM memory IC manufactured by Microchip Technology, designed for I2C serial communication applications. This non-volatile memory device operates at 1 MHz clock frequency with 900 ns access time and supports a supply voltage range of 2.5V to 5.5V. The component is actively produced, AEC-Q100 qualified for automotive applications, and ROHS3 compliant. Substitute parts are identified when equivalent memory capacity, interface protocol, package form factor, and electrical operating ranges are maintained within acceptable engineering tolerances.

Substiute Parts

AT24C01C-XPD-T

Microchip TechnologyIn Stock: 3221AT24C01C-XPD-T Datasheet

Current PartRFQ

BR24G01FVT-3GE2

Rohm SemiconductorIn Stock: 1212BR24G01FVT-3GE2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AT24C01C-XPD-T is determined by the following critical parameters:

Memory Capacity & Organization: Substitute parts must provide 1Kbit capacity with 128 x 8 organization to ensure direct functional equivalence in data storage and retrieval.

Interface Protocol: I2C serial interface is mandatory. The substitute must support I2C communication without requiring firmware or hardware modifications.

Package Compatibility: The 8-TSSOP surface mount package with 0.173" width and 4.40mm dimensions ensures mechanical and electrical compatibility with existing PCB layouts.

Electrical Operating Range: Supply voltage tolerance and operating temperature range determine system compatibility. Substitutes must operate within the application's specified voltage and temperature envelope.

Write Cycle Time: The 5ms write cycle time is a functional requirement for data programming operations.

The BR24G01FVT-3GE2 from Rohm Semiconductor qualifies as a substitute based on matching memory capacity, I2C interface, 8-TSSOP package form factor, and compatible write cycle time.

Parameter Comparison

Engineering Selection Recommendations

Both the AT24C01C-XPD-T and BR24G01FVT-3GE2 are active production components with ROHS3 compliance. The AT24C01C-XPD-T carries AEC-Q100 automotive qualification, which the BR24G01FVT-3GE2 specification does not indicate. For applications requiring automotive-grade certification, the AT24C01C-XPD-T is the specified choice. The BR24G01FVT-3GE2 operates at reduced clock frequency (400 kHz versus 1 MHz) and lower maximum operating temperature (85°C versus 125°C), which may limit suitability for high-temperature automotive or industrial environments. The BR24G01FVT-3GE2 supports lower minimum supply voltage (1.6V), providing broader compatibility with low-power applications. Component selection should be based on specific application requirements for temperature range, clock frequency, and automotive qualification status.

Frequently Asked Questions (FAQ)

Q: Can the BR24G01FVT-3GE2 directly replace the AT24C01C-XPD-T in all applications?

A: Direct replacement is possible for applications operating within the BR24G01FVT-3GE2 specifications: maximum 85°C operating temperature, 400 kHz I2C clock frequency, and 1.6V minimum supply voltage. Applications requiring 125°C operation or 1 MHz clock frequency require the AT24C01C-XPD-T.

Q: What is the significance of the different clock frequencies (1 MHz vs. 400 kHz)?

A: Clock frequency determines I2C communication speed. The AT24C01C-XPD-T supports faster data transfer at 1 MHz, while the BR24G01FVT-3GE2 operates at 400 kHz. Both frequencies are standard I2C speeds. System design must accommodate the lower frequency if substituting with the BR24G01FVT-3GE2.

Q: Are both parts pin-compatible?

A: Both components use the 8-TSSOP package with identical 0.173" width and 4.40mm dimensions. Pin compatibility is confirmed for PCB layout purposes. Electrical interface compatibility is maintained through I2C protocol equivalence.

Q: Does the BR24G01FVT-3GE2 meet automotive qualification requirements?

A: The provided specification does not indicate AEC-Q100 qualification for the BR24G01FVT-3GE2. The AT24C01C-XPD-T is explicitly AEC-Q100 qualified. Automotive applications requiring this certification must use the AT24C01C-XPD-T.

Q: What is the impact of the different operating temperature ranges?

A: The AT24C01C-XPD-T operates from -40°C to 125°C, while the BR24G01FVT-3GE2 operates from -40°C to 85°C. Applications in high-temperature environments (above 85°C) require the AT24C01C-XPD-T. Both support the full industrial temperature range below 85°C.

Q: Are there supply voltage compatibility considerations?

A: The AT24C01C-XPD-T requires 2.5V minimum supply voltage, while the BR24G01FVT-3GE2 operates at 1.6V minimum. The BR24G01FVT-3GE2 is suitable for low-power applications with reduced supply voltage. Both support the standard 5V logic level range.