AT24C164-10PI-2.7 Equivalent & Substitute Parts

Part Overview

The AT24C164-10PI-2.7 is a 16Kbit EEPROM memory IC with I2C interface operating at 400 kHz, manufactured by Microchip Technology. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The part is housed in an 8-DIP through-hole package and operates across a supply voltage range of 2.7V to 5.5V with an operating temperature range of -40°C to 85°C.

Substiute Parts

AT24C164-10PI-2.7

Microchip TechnologyIn Stock: 907AT24C164-10PI-2.7 Datasheet

Current PartRFQ

24AA16H-I/P

Microchip TechnologyIn Stock: 93124AA16H-I/P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AT24C164-10PI-2.7 is based on the following critical parameters that must remain constant or compatible:

• Memory capacity: 16Kbit with 2K x 8 organization
• Interface protocol: I2C at 400 kHz operation
• Package format: 8-DIP through-hole configuration
• Access time: 900 ns
• Operating temperature range: -40°C to 85°C
• Physical dimensions: 0.300" (7.62mm) DIP spacing

The 24AA16H-I/P meets all these requirements while offering improved electrical characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

The 24AA16H-I/P is the direct substitute for AT24C164-10PI-2.7. Selection is based on the following factors:

• Identical memory capacity, organization, and I2C interface specifications
• Identical package footprint and through-hole mounting configuration
• Identical access time and operating temperature range
• Active product status ensures ongoing availability and supply chain continuity
• ROHS3 compliance meets current environmental and regulatory requirements
• Improved write cycle time (5ms versus 10ms) provides performance enhancement
• Extended lower voltage supply range (1.7V minimum versus 2.7V minimum) offers broader application flexibility

Frequently Asked Questions (FAQ)

Q: Can the 24AA16H-I/P be used as a direct replacement for AT24C164-10PI-2.7?

A: Yes. Both parts share identical memory capacity (16Kbit), organization (2K x 8), I2C interface frequency (400 kHz), access time (900 ns), operating temperature range (-40°C to 85°C), and 8-DIP package dimensions. Pin-to-pin compatibility is confirmed.

Q: What are the key differences between these parts?

A: The 24AA16H-I/P offers three improvements: faster write cycle time (5ms versus 10ms), extended lower voltage operation (1.7V minimum versus 2.7V minimum), and active product status with ROHS3 compliance versus the obsolete, non-compliant status of the AT24C164-10PI-2.7.

Q: Does the lower minimum voltage specification of the 24AA16H-I/P affect compatibility?

A: No. The extended voltage range of the 24AA16H-I/P (1.7V to 5.5V) is a superset of the original part's range (2.7V to 5.5V). Applications operating within the original voltage range remain fully compatible.

Q: Are there any package or mounting differences?

A: No. Both parts use identical 8-DIP through-hole packaging with 0.300" (7.62mm) spacing. PCB layouts and socket compatibility are unchanged.

Q: Why is the AT24C164-10PI-2.7 marked as obsolete?

A: Obsolete status indicates the manufacturer has discontinued production. The 24AA16H-I/P represents the active equivalent in Microchip Technology's current product portfolio.