24LC01BH-E/ST EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 24LC01BH-E/ST is a 1Kbit EEPROM memory integrated circuit manufactured by Microchip Technology, designed for I2C serial communication applications. This non-volatile memory device operates across a wide supply voltage range of 2.5V to 5.5V and supports clock frequencies up to 400 kHz, making it suitable for embedded systems, IoT devices, and industrial control applications requiring persistent data storage.

The part is currently in active production status with 933 pieces available in inventory. Finding equivalent substitute parts is necessary to ensure supply chain flexibility, optimize procurement costs, and maintain design continuity when the primary part becomes unavailable or when alternative sourcing options are required.

Substiute Parts

24LC01BH-E/ST

Microchip TechnologyIn Stock: 101124LC01BH-E/ST Datasheet

Current PartRFQ

M24C01-RDW6TP

STMicroelectronicsIn Stock: 53202M24C01-RDW6TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 24LC01BH-E/ST is determined by strict equivalence across the following critical parameters:

Memory Specifications: Memory size (1Kbit), organization (128 x 8), and interface protocol (I2C) must be identical. These parameters define the functional compatibility and software interface requirements.

Electrical Performance: Clock frequency (400 kHz), access time (900 ns), and write cycle time (5ms) must match or exceed the original specification. Supply voltage range must encompass the original range or be compatible with the application's power supply constraints.

Physical Compatibility: Package type (8-TSSOP) and mounting type (Surface Mount) must be identical to ensure PCB layout and assembly process compatibility.

Compliance & Certification: RoHS3 compliance status ensures regulatory alignment for target markets.

The M24C01-RDW6TP from STMicroelectronics meets all substitution criteria for the 24LC01BH-E/ST within the specified parameter constraints.

Parameter Comparison

Engineering Selection Recommendations

The M24C01-RDW6TP is a direct functional equivalent to the 24LC01BH-E/ST for applications operating within the temperature range of -40°C to 85°C. Both parts maintain ROHS3 compliance and identical electrical performance specifications for memory access, clock frequency, and I2C protocol implementation.

The substitute part offers extended lower voltage operation (1.8V minimum versus 2.5V), providing additional flexibility for low-power applications. The operating temperature range of the substitute is narrower by 40°C at the upper limit; applications requiring operation above 85°C must use the original 24LC01BH-E/ST.

Both parts are in active production status with established supply chains. The M24C01-RDW6TP offers significantly higher inventory availability (53,100 pieces) compared to the primary part (933 pieces), supporting improved procurement lead times and cost optimization.

Frequently Asked Questions (FAQ)

Q: Can the M24C01-RDW6TP replace the 24LC01BH-E/ST in all applications?

A: The M24C01-RDW6TP is functionally equivalent for applications operating within -40°C to 85°C. Applications requiring operation above 85°C must use the 24LC01BH-E/ST, which supports temperatures up to 125°C.

Q: Are there differences in I2C protocol implementation between these parts?

A: No. Both parts implement identical I2C interface specifications with 400 kHz clock frequency, 900 ns access time, and 5ms write cycle time. Software and firmware compatibility is maintained.

Q: What is the impact of the different voltage supply ranges?

A: The M24C01-RDW6TP supports operation down to 1.8V, while the 24LC01BH-E/ST requires minimum 2.5V. For applications using 2.5V to 5.5V supplies, both parts are compatible. Low-power applications operating at 1.8V to 2.4V require the M24C01-RDW6TP.

Q: Are the packages physically identical?

A: Yes. Both parts use 8-TSSOP surface mount packages with identical pinout and PCB footprint dimensions (0.173" width, 4.40mm). No PCB layout modifications are required for substitution.

Q: Do both parts meet the same regulatory compliance standards?

A: Yes. Both the 24LC01BH-E/ST and M24C01-RDW6TP are ROHS3 compliant and REACH unaffected, meeting equivalent regulatory requirements for industrial and consumer applications.