AT24C64-10PI-2.7 Equivalent & Substitute Parts

Part Overview

The AT24C64-10PI-2.7 is a 64Kbit EEPROM memory IC with I2C interface operating at 400 kHz, manufactured by Microchip Technology in 8-DIP through-hole packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The device provides non-volatile memory storage suitable for embedded systems requiring serial communication protocols and low-power operation across industrial temperature ranges.

Substiute Parts

AT24C64-10PI-2.7

Microchip TechnologyIn Stock: 2154AT24C64-10PI-2.7 Datasheet

Current PartRFQ

24AA64F-I/P

Microchip TechnologyIn Stock: 352424AA64F-I/P Datasheet

DirectRFQ

24AA64-E/P

Microchip TechnologyIn Stock: 104624AA64-E/P Datasheet

MFR RecommendedRFQ

AT24C64B-10PU-2.7

Microchip TechnologyIn Stock: 979AT24C64B-10PU-2.7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AT24C64-10PI-2.7 is determined by strict equivalence across the following parameters: 64Kbit memory capacity, 8K x 8 organization, I2C serial interface, 400 kHz clock frequency, 900 ns access time, 8-DIP through-hole package, and compatible voltage supply range (minimum 2.7V). Write cycle time variations are acceptable within the same functional class. Parts are grouped by their relationship to the original specification and current product status.

Parameter Comparison

Engineering Selection Recommendations

For designs currently using AT24C64-10PI-2.7, the AT24C64B-10PU-2.7 serves as the direct parametric equivalent with active product status and verified programmability. This part maintains identical voltage supply range (2.7V ~ 5.5V) and operating temperature (-40°C ~ 85°C), with improved write cycle time (5ms versus 10ms) and ROHS3 compliance.

The 24AA64F-I/P and 24AA64-E/P are manufacturer-recommended alternatives offering extended voltage supply range (1.7V ~ 5.5V) and active product status with ROHS3 compliance. The 24AA64-E/P extends operating temperature to -40°C ~ 125°C, suitable for applications requiring wider thermal operating windows. Both parts feature improved write cycle time (5ms) compared to the original specification.

Selection should prioritize active product status parts to ensure long-term supply continuity and compliance with current environmental regulations. Voltage supply range compatibility with existing circuit design is the primary constraint for substitution.

Frequently Asked Questions (FAQ)

Q: Can AT24C64B-10PU-2.7 directly replace AT24C64-10PI-2.7 in existing designs?

A: Yes. Both parts share identical memory capacity (64Kbit), I2C interface, clock frequency (400 kHz), access time (900 ns), voltage supply range (2.7V ~ 5.5V), operating temperature range (-40°C ~ 85°C), and 8-DIP through-hole package. The AT24C64B-10PU-2.7 is the active equivalent with improved write cycle time.

Q: What is the difference between 24AA64F-I/P and 24AA64-E/P?

A: Both parts are functionally equivalent with 64Kbit capacity, I2C interface, and 8-DIP packaging. The primary difference is operating temperature range: 24AA64F-I/P operates -40°C ~ 85°C, while 24AA64-E/P operates -40°C ~ 125°C. The 24AA64-E/P is suitable for high-temperature applications.

Q: Are all substitute parts compatible with 2.7V supply voltage?

A: The AT24C64B-10PU-2.7 maintains the original 2.7V minimum supply voltage. The 24AA64F-I/P and 24AA64-E/P support lower minimum voltage (1.7V), making them compatible with 2.7V designs while offering additional flexibility for lower-voltage applications.

Q: What packaging format is available for substitute parts?

A: All substitute parts are supplied in 8-DIP through-hole package (0.300", 7.62mm), maintaining mechanical and electrical compatibility with the original AT24C64-10PI-2.7 footprint.

Q: Are substitute parts RoHS compliant?

A: Yes. All active substitute parts (24AA64F-I/P, 24AA64-E/P, AT24C64B-10PU-2.7) are ROHS3 compliant, whereas the original AT24C64-10PI-2.7 is RoHS non-compliant.