AT24C08-10PI EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The AT24C08-10PI is an 8Kbit I2C EEPROM memory integrated circuit manufactured by Microchip Technology, housed in an 8-DIP through-hole package. This component is classified as obsolete, indicating limited availability and potential supply chain constraints. The part operates at 400 kHz I2C clock frequency with 900 ns access time, suitable for non-volatile data storage applications requiring I2C serial communication. Due to its obsolete status, identifying functionally equivalent substitute parts is essential for design continuity and procurement planning.

Substiute Parts

AT24C08-10PI

Microchip TechnologyIn Stock: 1115AT24C08-10PI Datasheet

Current PartRFQ

24AA08-I/P

Microchip TechnologyIn Stock: 242724AA08-I/P Datasheet

MFR RecommendedRFQ

BR24G08-3

Rohm SemiconductorIn Stock: 1641BR24G08-3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AT24C08-10PI is determined by the following critical parameters:

• Memory Capacity: 8Kbit (non-negotiable for data storage compatibility)
• Interface Protocol: I2C serial communication (required for system integration)
• Package Format: 8-DIP through-hole configuration (mandatory for PCB layout compatibility)
• Operating Temperature Range: -40°C ~ 85°C (environmental specification match)
• Supply Voltage Compatibility: Parts must operate within or encompass the 4.5V ~ 5.5V range

The identified substitute parts meet these core substitution criteria while maintaining functional equivalence in I2C EEPROM applications.

Parameter Comparison

Engineering Selection Recommendations

24AA08-I/P is the primary substitute for AT24C08-10PI. Both parts are manufactured by Microchip Technology and share identical I2C clock frequency (400 kHz), access time (900 ns), and write cycle time (5ms). The 24AA08-I/P offers superior supply voltage flexibility (1.7V ~ 5.5V) compared to the original part's 4.5V ~ 5.5V range, ensuring broader application compatibility. Critically, the 24AA08-I/P maintains active product status with ROHS3 compliance, addressing supply chain continuity and regulatory requirements. The part is verified as DiGi-Electronics programmable and available in higher inventory quantities (2408 pcs).

BR24G08-3 serves as a secondary substitute manufactured by Rohm Semiconductor. This part maintains 8Kbit capacity, I2C interface, 8-DIP package format, and identical operating temperature range. The BR24G08-3 operates at 1 MHz clock frequency, providing faster I2C communication than the original 400 kHz specification. Supply voltage range (1.6V ~ 5.5V) encompasses the original part's requirements. However, BR24G08-3 carries obsolete product status, limiting its suitability for long-term procurement strategies despite ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can the 24AA08-I/P directly replace the AT24C08-10PI in existing designs?

A: Yes. Both parts share identical 8Kbit EEPROM capacity, I2C interface protocol, 400 kHz clock frequency, 900 ns access time, and 8-DIP through-hole package dimensions. The 24AA08-I/P's extended supply voltage range (1.7V ~ 5.5V) encompasses the original part's 4.5V ~ 5.5V specification, ensuring functional compatibility without circuit modification.

Q: What is the significance of the BR24G08-3's 1 MHz clock frequency compared to the original 400 kHz?

A: The BR24G08-3 operates at 1 MHz I2C clock frequency, which is faster than the AT24C08-10PI's 400 kHz specification. This higher frequency enables faster data transfer rates. However, I2C bus speed is typically determined by the slowest device on the bus, so the actual communication speed depends on system configuration. The part remains functionally compatible for applications designed around 400 kHz operation.

Q: Why is product status important when selecting a substitute?

A: Product status indicates supply chain availability and manufacturer support. The AT24C08-10PI and BR24G08-3 are both obsolete, meaning production has ceased and inventory is limited. The 24AA08-I/P maintains active status, ensuring continued availability, manufacturer support, and compliance with current regulatory standards. For new designs or long-term applications, active-status parts are preferred.

Q: Are there voltage supply considerations when substituting these parts?

A: The original AT24C08-10PI requires 4.5V ~ 5.5V supply voltage. Both substitute parts (24AA08-I/P and BR24G08-3) accept lower minimum voltages (1.7V and 1.6V respectively) while maintaining the 5.5V upper limit. If your circuit operates at voltages below 4.5V, the substitutes provide additional flexibility. If your circuit operates within 4.5V ~ 5.5V, both substitutes are fully compatible.

Q: What is the difference between the memory organization specifications?

A: The AT24C08-10PI specifies 1K x 8 organization (1024 locations × 8 bits = 8Kbit total). The 24AA08-I/P specifies 256 x 8 x 4 organization, which also yields 8Kbit total capacity (256 × 8 × 4 = 8192 bits). Both configurations provide identical total storage capacity and are functionally equivalent for I2C EEPROM applications.

Q: Does RoHS compliance affect substitution decisions?

A: The AT24C08-10PI is RoHS non-compliant, while both substitute parts (24AA08-I/P and BR24G08-3) are ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, the compliant substitutes are mandatory. For legacy systems without regulatory constraints, non-compliance is not a technical barrier to substitution.