Equivalent & Substitute Parts for 24AA01H-I/P

Part Overview

The 24AA01H-I/P is a 1Kbit EEPROM memory IC manufactured by Microchip Technology, designed for I2C serial communication at 400 kHz. This non-volatile memory device is housed in an 8-PDIP package and operates across a wide voltage range of 1.7V to 5.5V with an operating temperature range of -40°C to 85°C. The part is currently in active production status and is ROHS3 compliant. Substitute parts are identified when they maintain identical electrical specifications, memory capacity, interface protocol, and physical packaging while potentially offering different performance characteristics or availability.

Substiute Parts

24AA01H-I/P

Microchip TechnologyIn Stock: 105424AA01H-I/P Datasheet

Current PartRFQ

24AA01-I/P

Microchip TechnologyIn Stock: 251224AA01-I/P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 24AA01H-I/P is determined by strict equivalence across the following critical parameters:

Memory capacity and organization (1Kbit, 128 x 8 configuration) must remain unchanged. The I2C interface protocol and 400 kHz clock frequency are mandatory for system compatibility. Physical packaging must be identical (8-DIP, 0.300" pitch) to ensure PCB footprint compatibility. Voltage supply range (1.7V ~ 5.5V) and operating temperature range (-40°C ~ 85°C) must be maintained. Write cycle time (5ms) and RoHS3 compliance status are required specifications.

The 24AA01-I/P qualifies as a direct substitute based on these parameters. Access time differences do not affect substitution eligibility, as this parameter does not impact functional compatibility in I2C EEPROM applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 24AA01H-I/P and 24AA01-I/P are active production parts from Microchip Technology with identical ROHS3 and REACH compliance certifications. Selection between these parts should be based on availability and inventory status. The 24AA01-I/P currently maintains higher inventory levels (2435 pcs) compared to the 24AA01H-I/P (1001 pcs). Both parts are suitable for applications requiring 1Kbit I2C EEPROM functionality in 8-DIP through-hole packages.

Frequently Asked Questions (FAQ)

Q: Can the 24AA01-I/P replace the 24AA01H-I/P in existing designs?

A: Yes. Both parts share identical memory capacity, interface protocol, clock frequency, voltage supply range, operating temperature range, write cycle time, and physical packaging. These are the critical parameters determining substitution eligibility.

Q: What is the significance of the different access times (900 ns vs. 3500 ns)?

A: Access time represents the delay from address input to data output availability. The 24AA01H-I/P has faster access time (900 ns), while the 24AA01-I/P has slower access time (3500 ns). Both values are within acceptable ranges for I2C EEPROM applications and do not affect functional compatibility.

Q: Are there any package or mounting differences between these parts?

A: No. Both parts use identical 8-DIP packaging with 0.300" (7.62mm) pitch and through-hole mounting. PCB footprints are identical.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 24AA01H-I/P and 24AA01-I/P are ROHS3 compliant and REACH unaffected, meeting identical regulatory requirements.

Q: Which part should be selected for new designs?

A: Selection should be based on current availability and supply chain requirements. Both parts are active production items suitable for new designs. The 24AA01-I/P currently has higher inventory availability.