Microchip 24AA04/P EEPROM Memory IC - Equivalent & Substitute Parts

Part Overview

The Microchip 24AA04/P is a 4Kbit non-volatile EEPROM memory integrated circuit designed for I2C serial communication applications. This through-hole 8-DIP package device operates at 400 kHz clock frequency with 900 ns access time, supporting supply voltages from 1.7V to 5.5V. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical specifications and mechanical packaging allow direct functional replacement in circuit designs.

Substiute Parts

24AA04/P

Microchip TechnologyIn Stock: 296324AA04/P Datasheet

Current PartRFQ

24AA04-I/P

Microchip TechnologyIn Stock: 121324AA04-I/P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 24AA04/P are identified based on strict equivalence across the following critical parameters:

• Memory capacity and organization (4Kbit, 256 x 8 x 2)
• Serial interface protocol (I2C)
• Clock frequency (400 kHz minimum)
• Access time (900 ns)
• Write cycle time (5 ms)
• Package form factor (8-DIP through-hole)
• Supply voltage compatibility (1.7V to 5.5V range)
• RoHS and regulatory compliance status

The 24AA04-I/P variant meets all electrical and mechanical substitution criteria. Differences in operating temperature range and verification status do not affect functional interchangeability in applications where the specified temperature range is acceptable.

Parameter Comparison

Engineering Selection Recommendations

Both the 24AA04/P and 24AA04-I/P are active production parts with ROHS3 compliance and equivalent electrical specifications. The 24AA04-I/P provides an extended operating temperature range (-40°C to 85°C) compared to the 24AA04/P (0°C to 70°C), making it suitable for applications requiring broader temperature operation. Selection between these parts should be based on the specific operating temperature requirements of the target application. Both parts maintain identical I2C interface timing, memory capacity, and package footprint for direct circuit board substitution.

Frequently Asked Questions (FAQ)

Q: Can the 24AA04-I/P replace the 24AA04/P in all applications?

A: The 24AA04-I/P is electrically and mechanically equivalent to the 24AA04/P. Substitution is valid when the application's operating temperature range falls within -40°C to 85°C. If the application operates only within 0°C to 70°C, both parts are functionally interchangeable.

Q: Are there differences in I2C communication timing between these parts?

A: No. Both parts operate at 400 kHz clock frequency with 900 ns access time and 5 ms write cycle time. I2C protocol timing is identical.

Q: Do these parts use the same PCB footprint?

A: Yes. Both the 24AA04/P and 24AA04-I/P use the 8-DIP (0.300", 7.62mm) through-hole package with identical pin configuration and spacing.

Q: What is the significance of the temperature range difference?

A: The 24AA04-I/P supports a wider operating temperature range (-40°C to 85°C) versus the 24AA04/P (0°C to 70°C). Applications requiring operation below 0°C or above 70°C must use the 24AA04-I/P variant.

Q: Are both parts RoHS compliant?

A: Yes. Both the 24AA04/P and 24AA04-I/P are ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1).