AT24C01-10PI-1.8 Equivalent & Substitute Parts

Part Overview

The AT24C01-10PI-1.8 is a 1Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface operation at 400 kHz with 900 ns access time. This device is designed for non-volatile data storage applications requiring low-voltage operation across 1.8V to 5.5V supply range and operates within -40°C to 85°C temperature specifications.

The AT24C01-10PI-1.8 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production or maintenance requirements for systems utilizing this memory IC.

Substiute Parts

AT24C01-10PI-1.8

Microchip TechnologyIn Stock: 1033AT24C01-10PI-1.8 Datasheet

Current PartRFQ

24AA014H-I/P

Microchip TechnologyIn Stock: 233124AA014H-I/P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AT24C01-10PI-1.8 is determined by strict alignment across the following critical parameters:

• Memory capacity (1Kbit) and organization (128 x 8)
• I2C interface protocol at 400 kHz operation
• Access time specification (900 ns)
• Supply voltage compatibility (minimum 1.8V support required)
• Operating temperature range (-40°C to 85°C)
• Physical package format (8-DIP through-hole)

The 24AA014H-I/P meets all substitution criteria. This part maintains identical memory specifications, I2C interface characteristics, access time, and physical packaging. The supply voltage range of 1.7V to 5.5V encompasses the original specification, and operating temperature range remains consistent.

Parameter Comparison

Engineering Selection Recommendations

The 24AA014H-I/P is a direct functional equivalent to the AT24C01-10PI-1.8 and is the recommended substitute part.

Selection rationale:

• The substitute maintains all critical electrical and functional parameters required for I2C EEPROM 1Kbit memory applications
• The 24AA014H-I/P is classified as active product status, ensuring ongoing availability and supply chain continuity
• The substitute achieves ROHS3 compliance, whereas the original part is non-compliant, providing environmental and regulatory advantage
• Physical package compatibility (8-DIP through-hole) enables direct board-level substitution without layout modification
• The improved write cycle time (5ms versus 10ms) represents a performance enhancement with no negative impact on system integration
• Supply voltage range of 1.7V to 5.5V fully encompasses the original 1.8V to 5.5V specification

Frequently Asked Questions (FAQ)

Q: Can the 24AA014H-I/P be used as a direct replacement for the AT24C01-10PI-1.8 without circuit modification?

A: Yes. The 24AA014H-I/P is pin-compatible and functionally equivalent. Both devices use identical 8-DIP through-hole packaging and I2C interface protocol. No circuit redesign is required for substitution.

Q: What is the significance of the lower minimum supply voltage (1.7V) in the 24AA014H-I/P?

A: The 24AA014H-I/P minimum supply voltage of 1.7V is lower than the original 1.8V specification. This represents expanded operating range and does not create compatibility issues. Systems designed for 1.8V to 5.5V operation remain fully compatible.

Q: Does the faster write cycle time (5ms versus 10ms) affect system compatibility?

A: No. The faster write cycle time of the 24AA014H-I/P is a performance improvement. Systems designed around the original 10ms specification will function correctly with the faster substitute part.

Q: Why is RoHS compliance status relevant for this substitution?

A: The 24AA014H-I/P achieves ROHS3 compliance while the original AT24C01-10PI-1.8 is non-compliant. For applications subject to environmental regulations or customer requirements mandating RoHS compliance, the substitute part provides regulatory alignment.

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

A: No. Both the AT24C01-10PI-1.8 and 24AA014H-I/P use identical 8-DIP (0.300", 7.62mm) through-hole packaging with matching pinout configuration.

Q: What is the basis for confirming substitution compatibility?

A: Substitution compatibility is confirmed through alignment of all critical parameters: memory capacity (1Kbit), organization (128 x 8), I2C interface (400 kHz), access time (900 ns), supply voltage range (1.7V to 5.5V encompasses 1.8V to 5.5V), operating temperature (-40°C to 85°C), and physical package format (8-DIP through-hole).