Equivalent & Substitute Parts for 24AA16HT-I/MS

Part Overview

The 24AA16HT-I/MS is a 16Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface with 400 kHz clock frequency and 900 ns access time. This non-volatile memory device is designed for applications requiring persistent data storage in embedded systems and industrial equipment. The part is currently in active production status with 691 units available in stock.

Substitute parts are identified when they maintain electrical and mechanical compatibility across core parameters including memory capacity, interface protocol, voltage supply range, operating temperature, and physical packaging dimensions. Alternative sources become necessary due to inventory availability, supply chain optimization, or design phase requirements.

Key Parameters

Parameter	Value
Memory Size	16Kbit
Memory Organization	2K x 8
Memory Interface	I2C
Clock Frequency	400 kHz
Access Time	900 ns
Write Cycle Time	5ms
Voltage Supply Range	1.7V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package Type	8-MSOP / 8-TSSOP
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 24AA16HT-I/MS is determined by strict equivalence across the following parameters:

Memory capacity of 16Kbit with 2K x 8 organization
I2C serial interface protocol at 400 kHz operation
Access time specification of 900 ns or faster
Write cycle time of 5ms or less
Supply voltage range encompassing 1.7V to 5.5V minimum
Operating temperature range of -40°C to 85°C
Surface mount packaging in 8-pin MSOP or 8-pin TSSOP configuration
ROHS3 compliance certification

Parts meeting all these criteria are classified as parametric equivalents. Deviations in product status or moisture sensitivity level do not affect functional substitutability but may impact procurement and storage requirements.

Parameter Comparison

Parameter	24AA16HT-I/MS (Main)	24AA16T-I/MS (Equivalent)	BR24G16FVJ-3GTE2 (MFR Recommended)
Manufacturer	Microchip Technology	Microchip Technology	Rohm Semiconductor
Memory Size	16Kbit	16Kbit	16Kbit
Memory Organization	2K x 8	2K x 8	2K x 8
Memory Interface	I2C	I2C	I2C
Clock Frequency	400 kHz	400 kHz	400 kHz
Access Time	900 ns	900 ns	Not specified
Write Cycle Time	5ms	5ms	5ms
Voltage Supply Range	1.7V ~ 5.5V	1.7V ~ 5.5V	1.6V ~ 5.5V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package Type	8-MSOP	8-MSOP	8-TSSOP
Product Status	Active	Active	Not For New Designs
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	2 (1 Year)	1 (Unlimited)
Inventory Available	691 Pcs	1154 Pcs	1494 Pcs

Engineering Selection Recommendations

The 24AA16T-I/MS represents a direct parametric equivalent to the 24AA16HT-I/MS, maintaining identical electrical specifications and package configuration. Both parts are manufactured by Microchip Technology and carry active product status. The primary distinction is moisture sensitivity level classification, where the 24AA16T-I/MS requires one-year storage control versus unlimited storage for the main part. Selection between these two Microchip variants depends on inventory availability and storage environment conditions.

The BR24G16FVJ-3GTE2 from Rohm Semiconductor meets core electrical parameters but carries a "Not For New Designs" product status designation. This classification indicates the manufacturer is discontinuing the product line. While the part maintains functional compatibility across memory capacity, interface protocol, voltage supply, and temperature range, its use is restricted to legacy system maintenance or existing design continuations. The BR24G16FVJ-3GTE2 utilizes 8-TSSOP packaging versus the 8-MSOP configuration of the Microchip parts, requiring PCB layout verification for pin-compatible footprint compatibility.

For new designs, the 24AA16T-I/MS is the preferred substitute when 24AA16HT-I/MS inventory is unavailable. The BR24G16FVJ-3GTE2 should be reserved for legacy applications only.

Frequently Asked Questions (FAQ)

Q: Can 24AA16T-I/MS replace 24AA16HT-I/MS in production designs?

A: Yes. Both parts share identical electrical specifications including 16Kbit capacity, I2C 400 kHz interface, 900 ns access time, 5ms write cycle, 1.7V to 5.5V supply range, and -40°C to 85°C operating temperature. The difference in moisture sensitivity level (MSL 2 versus MSL 1) affects storage and handling procedures but not functional performance.

Q: What is the significance of the "Not For New Designs" status on BR24G16FVJ-3GTE2?

A: This designation indicates Rohm Semiconductor is phasing out this product line. While the part remains functionally compatible, it should not be selected for new circuit designs. Use this part only for replacement or repair of existing systems already deployed with this component.

Q: Are the 8-MSOP and 8-TSSOP packages interchangeable?

A: No. While both are 8-pin surface mount packages with similar pin pitch, they have different physical dimensions and footprint layouts. PCB designs must be verified for package-specific compatibility. The 24AA16HT-I/MS and 24AA16T-I/MS use 8-MSOP, while BR24G16FVJ-3GTE2 uses 8-TSSOP-BJ.

Q: Does the lower minimum voltage specification of BR24G16FVJ-3GTE2 (1.6V vs 1.7V) affect compatibility?

A: No. The BR24G16FVJ-3GTE2 minimum of 1.6V is lower than the 24AA16HT-I/MS minimum of 1.7V, meaning it operates across a wider voltage range. In applications using 1.7V to 5.5V supply, both parts function identically.

Q: Which substitute should be selected for inventory optimization?

A: The 24AA16T-I/MS offers the highest available inventory (1154 units) while maintaining identical electrical performance and active product status. This part is the optimal choice for supply chain continuity.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message