AT24C512C-SHM-T EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The AT24C512C-SHM-T is a 512Kbit EEPROM memory IC manufactured by Microchip Technology, designed for non-volatile data storage applications requiring I2C interface communication. This device is currently in active production status with 2140 units available in inventory. Finding equivalent and substitute parts is necessary to ensure supply chain flexibility, optimize procurement costs, and maintain design continuity when the primary part becomes unavailable or when alternative packaging formats are required.

Substiute Parts

AT24C512C-SHM-T

Microchip TechnologyIn Stock: 2176AT24C512C-SHM-T Datasheet

Current PartRFQ

24AA512T-I/SM

Microchip TechnologyIn Stock: 209124AA512T-I/SM Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AT24C512C-SHM-T is determined by the following critical parameters:

• Memory capacity (512Kbit) and organization (64K x 8)
• I2C interface protocol and 400 kHz clock frequency
• Access time specification (900 ns)
• Package format (8-SOIC) and mounting type (Surface Mount)
• Operating temperature range (-40°C ~ 85°C)
• Supply voltage compatibility

The substitute part 24AA512T-I/SM meets all core functional and electrical requirements. The primary difference lies in the supply voltage range specification and packaging format (Cut Tape & Digi-Reel versus Tape & Reel), which does not affect electrical compatibility or functional performance in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

The 24AA512T-I/SM substitute part is functionally equivalent to the AT24C512C-SHM-T for all circuit applications within the specified operating parameters. Both parts are manufactured by Microchip Technology, maintain active product status, and carry ROHS3 compliance certification. The substitute part features an extended supply voltage range (1.7V ~ 5.5V versus 1.7V ~ 3.6V), which provides additional design flexibility without introducing any compatibility concerns. Selection between these parts should be based on packaging format availability (Tape & Reel versus Cut Tape & Digi-Reel) and procurement requirements rather than electrical performance considerations.

Frequently Asked Questions (FAQ)

Q: Can the 24AA512T-I/SM be used as a direct replacement for the AT24C512C-SHM-T in existing designs?

A: Yes. Both parts share identical memory capacity, I2C interface specifications, access timing, package dimensions, and operating temperature range. The substitute part is pin-compatible and functionally equivalent.

Q: What is the significance of the different supply voltage ranges?

A: The AT24C512C-SHM-T operates from 1.7V to 3.6V, while the 24AA512T-I/SM operates from 1.7V to 5.5V. The substitute part's wider voltage range does not affect compatibility in applications designed for the main part's voltage specification. Both parts will function correctly within the main part's voltage window.

Q: Are there differences in packaging that affect PCB assembly?

A: Both parts use identical 8-SOIC package dimensions (0.209" width, 5.30mm). The difference in packaging format (Tape & Reel versus Cut Tape & Digi-Reel) relates to supply and handling methods only and does not affect circuit board assembly or electrical performance.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the AT24C512C-SHM-T and 24AA512T-I/SM are ROHS3 compliant, REACH unaffected, and carry identical regulatory classifications (ECCN: EAR99, HTSUS: 8542.32.0051).

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by matching memory capacity (512Kbit), memory organization (64K x 8), I2C interface protocol, clock frequency (400 kHz), access time (900 ns), package type (8-SOIC), mounting type (Surface Mount), and operating temperature range (-40°C ~ 85°C).