Equivalent & Substitute Parts for 11AA161-I/SN

Part Overview

The 11AA161-I/SN is an EEPROM memory IC manufactured by Microchip Technology, featuring 16Kbit capacity with single-wire interface operation at 100 kHz. This non-volatile memory device is designed for applications requiring low-power data storage in compact form factors. The part is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts may be required due to inventory availability, supply chain considerations, or design flexibility within compatible electrical and mechanical specifications.

Substiute Parts

11AA161-I/SN
Microchip TechnologyIn Stock: 98711AA161-I/SN Datasheet
11AA161-I/SN
Current Part
11AA160-I/SN
Microchip TechnologyIn Stock: 198811AA160-I/SN Datasheet
11AA160-I/SN
MFR Recommended

Key Parameters

Parameter Value
Memory Type Non-Volatile EEPROM
Memory Size 16Kbit
Memory Organization 2K x 8
Memory Interface Single Wire
Clock Frequency 100 kHz
Write Cycle Time 5ms
Supply Voltage Range 1.8V ~ 5.5V
Operating Temperature -40°C ~ 85°C
Package Type 8-SOIC (0.154", 3.90mm Width)
Mounting Type Surface Mount
RoHS Status ROHS3 Compliant
MSL Rating 1 (Unlimited)

Substitute Part Grouping Explanation

The 11AA160-I/SN qualifies as a direct substitute for the 11AA161-I/SN based on identical electrical and mechanical parameters. Substitution eligibility is determined by the following critical parameters:

  • Memory capacity: 16Kbit
  • Memory organization: 2K x 8
  • Interface type: Single Wire
  • Operating frequency: 100 kHz
  • Write cycle time: 5ms
  • Supply voltage range: 1.8V ~ 5.5V
  • Operating temperature range: -40°C ~ 85°C
  • Package specification: 8-SOIC with 0.154" (3.90mm) width
  • Compliance certifications: RoHS3, REACH Unaffected
  • Moisture sensitivity level: 1 (Unlimited)

Both parts are manufactured by Microchip Technology and maintain identical specifications across all functional and environmental parameters.

Parameter Comparison

Parameter 11AA161-I/SN 11AA160-I/SN Match
Manufacturer Microchip Technology Microchip Technology
Memory Type Non-Volatile EEPROM Non-Volatile EEPROM
Memory Size 16Kbit 16Kbit
Memory Organization 2K x 8 2K x 8
Memory Interface Single Wire Single Wire
Clock Frequency 100 kHz 100 kHz
Write Cycle Time 5ms 5ms
Supply Voltage 1.8V ~ 5.5V 1.8V ~ 5.5V
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C
Package / Case 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width)
Mounting Type Surface Mount Surface Mount
RoHS Status ROHS3 Compliant ROHS3 Compliant
MSL Rating 1 (Unlimited) 1 (Unlimited)
REACH Status REACH Unaffected REACH Unaffected
Product Status Active Active

Engineering Selection Recommendations

The 11AA160-I/SN is a qualified equivalent substitute for the 11AA161-I/SN. Both parts maintain active production status with identical electrical specifications, mechanical packaging, and regulatory compliance. Selection between these parts may be based on inventory availability and supply chain considerations. The 11AA160-I/SN currently has higher inventory availability at 1900 pieces compared to 895 pieces for the 11AA161-I/SN. Both parts carry ROHS3 compliance and REACH Unaffected status, meeting environmental and regulatory requirements for industrial and commercial applications.

Frequently Asked Questions (FAQ)

Q: Can the 11AA160-I/SN be used as a direct replacement for the 11AA161-I/SN?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including memory capacity, interface type, operating frequency, voltage range, temperature range, and package specification.

Q: Are there any differences in pin configuration or package dimensions?

A: No. Both parts use the 8-SOIC package with identical dimensions of 0.154" (3.90mm) width. Pin configuration and functionality are identical.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 11AA161-I/SN and 11AA160-I/SN are ROHS3 compliant and REACH Unaffected, with identical moisture sensitivity level ratings of 1 (Unlimited).

Q: What is the basis for substitution between these parts?

A: Substitution is based on matching all critical electrical parameters (memory type, capacity, organization, interface, frequency, timing, voltage, and temperature) and mechanical parameters (package type, mounting method, and dimensions).

Q: Are there any performance differences between the two parts?

A: No. Both parts operate at identical specifications for write cycle time (5ms), clock frequency (100 kHz), and supply voltage range (1.8V ~ 5.5V).

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