24LC01BH-I/P EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 24LC01BH-I/P is a 1Kbit EEPROM memory integrated circuit manufactured by Microchip Technology, designed for I2C serial communication applications operating at 400 kHz. This non-volatile memory device is housed in an 8-DIP through-hole package and operates across a supply voltage range of 2.5V to 5.5V with an operating temperature range of -40°C to 85°C. The device is currently in active production status and ROHS3 compliant. Equivalent and substitute parts are identified when designs require alternative sourcing, higher inventory availability, or modified electrical characteristics within acceptable operating parameters.

Substiute Parts

24LC01BH-I/P

Microchip TechnologyIn Stock: 100524LC01BH-I/P Datasheet

Current PartRFQ

24AA01-I/P

Microchip TechnologyIn Stock: 251224AA01-I/P Datasheet

MFR RecommendedRFQ

24LC01B-I/P

Microchip TechnologyIn Stock: 1031124LC01B-I/P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 24LC01BH-I/P are qualified based on the following critical parameters that determine functional interchangeability:

Core Compatibility Criteria:

• Memory capacity: 1Kbit (128 x 8 organization)
• Interface protocol: I2C serial communication
• Clock frequency: 400 kHz operation
• Package format: 8-DIP through-hole configuration
• Write cycle time: 5ms
• Operating temperature range: -40°C to 85°C
• RoHS compliance: ROHS3 Compliant

Allowable Variations:

• Access time: May vary (900 ns, 4.6 µs, or 3500 ns) without affecting functional compatibility
• Supply voltage range: May be broader (1.7V ~ 5.5V) or match the main part (2.5V ~ 5.5V)
• Base product number: Different series within Microchip 24-series EEPROM family

The 24AA01-I/P and 24LC01B-I/P are qualified substitutes as they maintain identical memory capacity, interface protocol, package type, and operating specifications while offering different access time characteristics and voltage supply ranges.

Parameter Comparison

Engineering Selection Recommendations

All three parts—24LC01BH-I/P, 24AA01-I/P, and 24LC01B-I/P—are active production devices manufactured by Microchip Technology and carry ROHS3 compliance certification. Selection between these parts is determined by specific application requirements:

24LC01BH-I/P is the primary specification with 900 ns access time and 2.5V to 5.5V supply voltage range. This part is suitable for applications requiring faster data access within the standard voltage operating window.

24LC01B-I/P provides equivalent functionality with 4.6 µs access time and identical voltage supply range (2.5V ~ 5.5V). This part is appropriate for applications where access time is not a critical constraint and higher inventory availability is beneficial.

24AA01-I/P offers the broadest supply voltage range (1.7V ~ 5.5V) with 3500 ns access time. This part is suitable for low-voltage applications and designs requiring extended voltage compatibility.

All three parts maintain identical memory capacity, I2C interface protocol, 400 kHz clock frequency, 5ms write cycle time, 8-DIP package configuration, and -40°C to 85°C operating temperature range. Selection should be based on access time requirements, supply voltage constraints, and component availability for the specific application.

Frequently Asked Questions (FAQ)

Q: Can 24AA01-I/P replace 24LC01BH-I/P in existing designs?

A: Yes, the 24AA01-I/P is a functional substitute. Both devices share identical memory capacity (1Kbit), I2C interface, 400 kHz clock frequency, package type (8-DIP), and operating temperature range. The primary difference is access time (3500 ns versus 900 ns) and supply voltage range (1.7V ~ 5.5V versus 2.5V ~ 5.5V). Designs operating at 2.5V or higher with non-critical access time requirements can use this substitute without modification.

Q: What is the difference between 24LC01B-I/P and 24AA01-I/P?

A: Both parts are 1Kbit I2C EEPROM devices in 8-DIP packages with identical memory organization and interface specifications. The 24LC01B-I/P operates at 2.5V ~ 5.5V with 4.6 µs access time, while the 24AA01-I/P operates at 1.7V ~ 5.5V with 3500 ns access time. The 24AA01-I/P supports lower supply voltages and has slightly faster access time. Both are suitable substitutes for the 24LC01BH-I/P in applications where access time is not a limiting factor.

Q: Are all three parts pin-compatible?

A: Yes. All three parts use the 8-DIP (0.300", 7.62mm) through-hole package configuration with identical pinout. Direct board-level substitution is possible without PCB modification.

Q: Do all parts meet the same compliance standards?

A: Yes. The 24LC01BH-I/P, 24AA01-I/P, and 24LC01B-I/P are all ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99. All parts carry MSL 1 (Unlimited) moisture sensitivity rating.

Q: Which part should be selected for low-voltage applications?

A: The 24AA01-I/P is the appropriate choice for applications requiring operation below 2.5V, as it supports supply voltages down to 1.7V. The 24LC01BH-I/P and 24LC01B-I/P require minimum 2.5V supply voltage.

Q: Is access time a critical factor in selecting between these parts?

A: Access time significance depends on application requirements. The 24LC01BH-I/P offers 900 ns access time, while 24LC01B-I/P and 24AA01-I/P offer 4.6 µs and 3500 ns respectively. For I2C serial communication at 400 kHz, these differences have minimal impact on system performance in most applications. Selection should prioritize voltage supply range and inventory availability unless access time is explicitly specified in the design requirements.