Equivalent & Substitute Parts for 11LC161-I/TO

Part Overview

The 11LC161-I/TO is a 16Kbit EEPROM memory IC manufactured by Microchip Technology, featuring single-wire interface operation at 100 kHz. This non-volatile memory device is housed in a TO-92-3 package and supports supply voltages from 2.5V to 5.5V with operating temperatures ranging from -40°C to 85°C. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the memory interface, capacity, and packaging standards.

Substiute Parts

11LC161-I/TO

Microchip TechnologyIn Stock: 120411LC161-I/TO Datasheet

Current PartRFQ

11AA160-I/TO

Microchip TechnologyIn Stock: 248911AA160-I/TO Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 11LC161-I/TO is determined by strict equivalence across the following critical parameters:

• Memory capacity: 16Kbit with 2K x 8 organization
• Interface protocol: Single-wire communication at 100 kHz
• Write cycle performance: 5ms word/page write time
• Package form factor: TO-92-3 through-hole configuration
• Supply voltage compatibility: Minimum 2.5V operation requirement
• Temperature rating: -40°C to 85°C operational range
• Regulatory compliance: ROHS3 and REACH status

The 11AA160-I/TO qualifies as a direct substitute based on matching all electrical and mechanical parameters. The primary distinction is an extended lower supply voltage limit of 1.8V on the substitute part, which provides broader voltage compatibility while maintaining all other specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the 11LC161-I/TO and 11AA160-I/TO are active production parts from Microchip Technology with identical ROHS3 compliance and REACH unaffected status. Selection between these parts depends on system supply voltage requirements. The 11LC161-I/TO is appropriate for applications with minimum supply voltage of 2.5V or higher. The 11AA160-I/TO extends compatibility to systems operating at 1.8V minimum supply voltage while maintaining all other electrical and mechanical specifications. Both parts are suitable for through-hole PCB assembly in applications requiring 16Kbit single-wire EEPROM functionality.

Frequently Asked Questions (FAQ)

Q: Can the 11AA160-I/TO replace the 11LC161-I/TO in existing designs?

A: Yes. The 11AA160-I/TO is electrically and mechanically compatible with the 11LC161-I/TO. Both parts share identical memory capacity, interface protocol, write cycle time, operating temperature range, and TO-92-3 package configuration. The substitute part supports an extended lower supply voltage range (1.8V minimum versus 2.5V minimum), which does not create compatibility issues in applications designed for the original part.

Q: What are the key differences between these two parts?

A: The sole difference is the minimum supply voltage specification. The 11LC161-I/TO operates from 2.5V to 5.5V, while the 11AA160-I/TO operates from 1.8V to 5.5V. All other parameters—memory size, organization, interface type, clock frequency, write cycle time, temperature range, and package form factor—are identical.

Q: Are there any package or pinout differences?

A: No. Both parts use the TO-92-3 (TO-226AA) through-hole package with identical pinout and mechanical dimensions. Direct PCB substitution is possible without layout modifications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 11LC161-I/TO and 11AA160-I/TO are ROHS3 compliant and REACH unaffected, with identical moisture sensitivity level (MSL) rating of 1 (unlimited).

Q: Which part should be selected for new designs?

A: For new designs, the 11AA160-I/TO is the preferred choice due to its broader supply voltage compatibility (1.8V to 5.5V), which provides greater design flexibility without sacrificing any electrical or mechanical performance. Both parts are in active production status.