AT24C32-10PC Equivalent & Substitute Parts

Part Overview

The AT24C32-10PC is a 32Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface operation at 400 kHz with 8-PDIP through-hole packaging. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and production continuity. The part operates within a 4.5V to 5.5V supply range and supports standard I2C communication protocols for non-volatile data storage applications.

Substiute Parts

AT24C32-10PC

Microchip TechnologyIn Stock: 2230AT24C32-10PC Datasheet

Current PartRFQ

BR24L32-W

Rohm SemiconductorIn Stock: 972BR24L32-W Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AT24C32-10PC is determined by strict equivalence across the following critical parameters:

• Memory Capacity: 32Kbit with 4K x 8 organization
• Interface Protocol: I2C at 400 kHz operation
• Package Format: 8-DIP through-hole configuration with 0.300" (7.62mm) pitch
• Electrical Compatibility: Supply voltage range and operating temperature envelope

The BR24L32-W from Rohm Semiconductor meets all core substitution criteria. While this substitute offers extended operating temperature range (-40°C to 85°C) and wider supply voltage tolerance (1.8V to 5.5V), it maintains full functional and mechanical compatibility with the original part within the AT24C32-10PC's specified operating conditions.

Parameter Comparison

Engineering Selection Recommendations

The BR24L32-W is the qualified substitute for AT24C32-10PC applications. Selection rationale is based on the following factors:

Product Status: The BR24L32-W maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete AT24C32-10PC.

Regulatory Compliance: The BR24L32-W is ROHS3 compliant, meeting current environmental and regulatory requirements. The original AT24C32-10PC is non-compliant with modern standards.

Performance Enhancement: The BR24L32-W provides improved write cycle time (5ms versus 10ms), reducing data storage latency in applications requiring frequent memory updates.

Operating Envelope: The BR24L32-W supports extended temperature range (-40°C to 85°C) and lower minimum supply voltage (1.8V), providing design flexibility for applications beyond the original part's specifications while maintaining full compatibility within the AT24C32-10PC's operating window.

Frequently Asked Questions (FAQ)

Q: Can BR24L32-W directly replace AT24C32-10PC in existing designs?

A: Yes. Both parts share identical memory capacity (32Kbit), I2C interface protocol at 400 kHz, and 8-DIP through-hole package format. Pin-to-pin compatibility is maintained. The BR24L32-W operates within the AT24C32-10PC's specified voltage (4.5V to 5.5V) and temperature (0°C to 70°C) ranges.

Q: What are the key differences between these parts?

A: The BR24L32-W offers superior write cycle time (5ms versus 10ms), extended operating temperature range (-40°C to 85°C versus 0°C to 70°C), wider supply voltage tolerance (1.8V to 5.5V versus 4.5V to 5.5V), and ROHS3 compliance. The AT24C32-10PC is obsolete; the BR24L32-W is in active production.

Q: Are there package or pinout variations to consider?

A: Both parts use identical 8-DIP (0.300", 7.62mm) through-hole packaging. No PCB layout modifications are required for substitution.

Q: Does the faster write cycle time of BR24L32-W affect compatibility?

A: No. Faster write performance is a functional improvement that does not impact compatibility. Existing firmware and timing requirements remain valid.

Q: What compliance certifications apply to the substitute part?

A: The BR24L32-W is ROHS3 compliant and REACH unaffected. The original AT24C32-10PC is RoHS non-compliant.