24AA014HT-I/SN EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 24AA014HT-I/SN is a 1Kbit I2C EEPROM memory IC manufactured by Microchip Technology, packaged in 8-SOIC surface mount configuration. This non-volatile memory device operates at 400 kHz I2C clock frequency with 900 ns access time and supports supply voltages from 1.7V to 5.5V across the industrial temperature range of -40°C to 85°C. The part is ROHS3 compliant and currently in active production status. Equivalent and substitute parts are identified based on matching memory capacity, interface protocol, package type, and electrical operating parameters to ensure functional interchangeability in circuit applications.

Key Parameters

Parameter	Value
Memory Size	1Kbit
Memory Organization	128 x 8
Memory Interface	I2C
Clock Frequency	400 kHz
Access Time	900 ns
Write Cycle Time	5ms
Supply Voltage Range	1.7V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 24AA014HT-I/SN are grouped based on the following critical parameters that determine functional interchangeability:

Primary Matching Criteria:

Memory Size: 1Kbit (128 x 8 organization)
Memory Interface: I2C protocol
Package Type: 8-SOIC or 8-SOP surface mount
Supply Voltage Compatibility: Minimum 1.7V support required
Operating Temperature Range: -40°C to 85°C

Secondary Compatibility Factors:

Clock Frequency: 400 kHz or higher (backward compatible)
Access Time: 900 ns or faster (backward compatible)
Write Cycle Time: 5ms or faster (backward compatible)

Substitutes are classified into two categories: direct equivalents (identical packaging and electrical specifications) and compatible alternatives (same memory capacity and interface with acceptable parameter variations).

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Access Time	Supply Voltage	Package	Product Status	Packaging Type
24AA014HT-I/SN	Microchip Technology	1Kbit	400 kHz	900 ns	1.7V ~ 5.5V	8-SOIC	Active	Tape & Reel
24AA014H-I/SN	Microchip Technology	1Kbit	400 kHz	900 ns	1.7V ~ 5.5V	8-SOIC	Active	Tube
24AA01T-I/SN	Microchip Technology	1Kbit	400 kHz	3500 ns	1.7V ~ 5.5V	8-SOIC	Active	Cut Tape & Digi-Reel
AT24C01C-SSHM-T	Microchip Technology	1Kbit	1 MHz	550 ns	1.7V ~ 5.5V	8-SOIC	Active	Cut Tape & Digi-Reel
AT24CS01-SSHM-B	Microchip Technology	1Kbit	1 MHz	550 ns	1.7V ~ 5.5V	8-SOIC	Active	Tube
AT24CS01-SSHM-T	Microchip Technology	1Kbit	1 MHz	550 ns	1.7V ~ 5.5V	8-SOIC	Active	Cut Tape & Digi-Reel
BR24C01-RMN6TP	ROHM Semiconductor	1Kbit	100 kHz	Not Specified	1.8V ~ 5.5V	8-SOP	Not For New Designs	Tape & Reel
BR24L01AF-WE2	Rohm Semiconductor	1Kbit	400 kHz	Not Specified	1.8V ~ 5.5V	8-SOP	Active	Cut Tape & Digi-Reel
BR24T01F-WE2	Rohm Semiconductor	1Kbit	400 kHz	Not Specified	1.6V ~ 5.5V	8-SOP	Active	Tape & Reel
M24C01-RMN6TP	STMicroelectronics	1Kbit	400 kHz	900 ns	1.8V ~ 5.5V	8-SOIC	Active	Cut Tape & Digi-Reel
M24C01-WMN6TP	STMicroelectronics	1Kbit	400 kHz	900 ns	2.5V ~ 5.5V	8-SOIC	Not For New Designs	Cut Tape & Digi-Reel

Engineering Selection Recommendations

Direct Equivalents (Identical Specifications): The 24AA014H-I/SN is a direct equivalent to the 24AA014HT-I/SN, differing only in packaging format (Tube versus Tape & Reel). Both parts maintain identical electrical and thermal specifications and are suitable for direct substitution where packaging requirements permit.

Microchip Technology AT Series (Higher Performance): The AT24C01C-SSHM-T and AT24CS01-SSHM-T parts offer enhanced clock frequency (1 MHz versus 400 kHz) and faster access time (550 ns versus 900 ns) while maintaining full backward compatibility with the 24AA014HT-I/SN. These parts are active production items and suitable for new designs requiring improved performance margins.

STMicroelectronics M24C01 Series: The M24C01-RMN6TP provides identical electrical performance to the 24AA014HT-I/SN with matching 400 kHz clock frequency and 900 ns access time. This part is in active production status and ROHS3 compliant. The M24C01-WMN6TP is functionally equivalent but marked "Not For New Designs" and has a reduced minimum supply voltage (2.5V).

ROHM Semiconductor BR24 Series: The BR24L01AF-WE2 and BR24T01F-WE2 provide 400 kHz I2C operation with 8-SOP packaging (0.173" width versus 0.154" for SOIC). Both are active production items with ROHS3 compliance. The BR24C01-RMN6TP operates at reduced clock frequency (100 kHz) and is marked "Not For New Designs," limiting its suitability for new applications.

Product Status Considerations: Parts marked "Active" are recommended for new designs. The M24C01-WMN6TP and BR24C01-RMN6TP are marked "Not For New Designs" and should be used only for legacy system maintenance or where existing inventory constraints apply.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 24AA014HT-I/SN with the 24AA014H-I/SN? A: Yes. Both parts are identical in electrical and thermal specifications. The difference is packaging format: 24AA014HT-I/SN is supplied in Tape & Reel, while 24AA014H-I/SN is supplied in Tube. Select based on your assembly process requirements.

Q: What is the difference between 8-SOIC and 8-SOP packages? A: Both are 8-pin surface mount packages with identical pin configurations and electrical compatibility. The primary difference is physical width: 8-SOIC is 0.154" (3.90mm) wide, while 8-SOP is 0.173" (4.40mm) wide. Verify PCB footprint compatibility before substitution.

Q: Can I use AT24C01C-SSHM-T instead of 24AA014HT-I/SN? A: Yes. The AT24C01C-SSHM-T is fully compatible and offers superior performance with 1 MHz clock frequency and 550 ns access time. It maintains the same 1Kbit memory capacity, I2C interface, and supply voltage range. This is a direct upgrade suitable for new designs.

Q: What is the minimum supply voltage requirement for substitutes? A: The 24AA014HT-I/SN requires 1.7V minimum. Most substitutes (Microchip AT series, STMicroelectronics M24C01-RMN6TP, ROHM BR24L01AF-WE2) support 1.7V or 1.8V minimum. The M24C01-WMN6TP requires 2.5V minimum and the BR24T01F-WE2 supports 1.6V minimum. Verify your circuit's supply voltage against the substitute part's minimum specification.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance status of the 24AA014HT-I/SN.

Q: Which substitute offers the best performance? A: The AT24C01C-SSHM-T and AT24CS01-SSHM-T provide the highest performance with 1 MHz clock frequency and 550 ns access time. Both are active production items suitable for new designs requiring maximum speed margins.

Q: Can I use BR24C01-RMN6TP as a substitute? A: The BR24C01-RMN6TP is functionally compatible but operates at reduced clock frequency (100 kHz versus 400 kHz) and is marked "Not For New Designs." Use only for legacy system maintenance where existing inventory or design constraints apply.

Q: What packaging options are available for the 24AA014HT-I/SN equivalent? A: Microchip offers Tape & Reel (TR), Cut Tape & Digi-Reel (CT), and Tube packaging formats across the 24AA014 and AT24C01/AT24CS01 series. ROHM and STMicroelectronics offer Cut Tape & Digi-Reel and Tape & Reel formats. Select based on your assembly process and volume requirements.

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