BR24C01-WDW6TP Equivalent & Substitute Parts

Part Overview

The BR24C01-WDW6TP is a 1Kbit EEPROM memory IC manufactured by Rohm Semiconductor, featuring I2C interface with 400 kHz clock frequency in 8-TSSOP surface mount packaging. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The device operates across a 2.5V to 5.5V supply range with -40°C to 85°C temperature rating, suitable for embedded systems requiring non-volatile memory storage.

Key Parameters

Parameter	Value
Memory Type	Non-Volatile EEPROM
Memory Size	1Kbit
Memory Organization	128 x 8
Interface	I2C
Clock Frequency	400 kHz
Write Cycle Time	5ms
Supply Voltage	2.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package	8-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution for the BR24C01-WDW6TP is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

Memory capacity: 1Kbit (128 x 8 organization)
Interface protocol: I2C
Clock frequency: 400 kHz
Package type: 8-TSSOP form factor
Write cycle time: 5ms
Operating temperature range: -40°C to 85°C
RoHS3 compliance

Voltage Compatibility Consideration: The BR24C01-WDW6TP operates at 2.5V minimum supply. Substitute parts with lower minimum voltage specifications (1.6V, 1.7V, 1.8V) remain compatible as they support the full 2.5V to 5.5V range required by the original part.

Substitute parts are grouped into two categories: Rohm Semiconductor active alternatives (BR24G01, BR24L01, BR24T01 series) and cross-manufacturer equivalents (Microchip 24AA014 series, Atmel AT24C01 series, STMicroelectronics M24C01 series).

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Supply Voltage	Package	Product Status	Write Cycle Time
BR24C01-WDW6TP	Rohm Semiconductor	1Kbit	400 kHz	2.5V ~ 5.5V	8-TSSOP	Obsolete	5ms
BR24G01FVT-3AGE2	Rohm Semiconductor	1Kbit	1 MHz	1.6V ~ 5.5V	8-TSSOP-B	Active	5ms
BR24G01FVT-3GE2	Rohm Semiconductor	1Kbit	400 kHz	1.6V ~ 5.5V	8-TSSOP-B	Active	5ms
BR24L01AFVT-WE2	ROHM Semiconductor	1Kbit	400 kHz	1.8V ~ 5.5V	8-TSSOP-B	Active	5ms
BR24T01FVT-WE2	Rohm Semiconductor	1Kbit	400 kHz	1.6V ~ 5.5V	8-TSSOP-B	Active	5ms
24AA01-I/ST	Microchip Technology	1Kbit	400 kHz	1.7V ~ 5.5V	8-TSSOP	Active	5ms
24AA014-I/MS	Microchip Technology	1Kbit	400 kHz	1.7V ~ 5.5V	8-MSOP	Active	5ms
24AA014-I/ST	Microchip Technology	1Kbit	400 kHz	1.7V ~ 5.5V	8-TSSOP	Active	5ms
24AA014H-I/ST	Microchip Technology	1Kbit	400 kHz	1.7V ~ 5.5V	8-TSSOP	Active	5ms
24AA014HT-I/ST	Microchip Technology	1Kbit	400 kHz	1.7V ~ 5.5V	8-TSSOP	Active	5ms
24AA014T-I/ST	Microchip Technology	1Kbit	400 kHz	1.7V ~ 5.5V	8-TSSOP	Active	5ms

Engineering Selection Recommendations

Primary Recommendation: BR24G01FVT-3GE2 This Rohm Semiconductor part maintains identical electrical specifications to the BR24C01-WDW6TP (1Kbit, 400 kHz I2C, 5ms write cycle) with active product status. The 8-TSSOP-B package is mechanically compatible with the original 8-TSSOP form factor. Supply voltage range of 1.6V to 5.5V encompasses the original 2.5V to 5.5V requirement. RoHS3 compliance and MSL 1 rating match the original part.

Secondary Recommendation: BR24L01AFVT-WE2 This active Rohm part provides identical functional specifications with 1.8V minimum supply voltage, maintaining full compatibility with the 2.5V to 5.5V operating range. Highest inventory availability (5873 units) among Rohm alternatives.

Cross-Manufacturer Alternative: 24AA014-I/ST (Microchip Technology) Microchip's 24AA014-I/ST offers identical 1Kbit capacity, 400 kHz I2C interface, and 8-TSSOP packaging. Active product status with 2252 units in stock. Supply voltage minimum of 1.7V remains compatible with the original specification. RoHS3 compliant with MSL 1 rating.

Package Consideration: The 24AA014-I/MS variant uses 8-MSOP packaging (3.00mm width) instead of 8-TSSOP (4.40mm width). This package difference requires PCB layout verification before substitution.

Frequently Asked Questions (FAQ)

Q: Can BR24G01FVT-3AGE2 substitute for BR24C01-WDW6TP? A: BR24G01FVT-3AGE2 operates at 1 MHz clock frequency, exceeding the 400 kHz specification of the original part. While electrically compatible in I2C protocol and 1Kbit capacity, the higher clock speed represents a functional upgrade rather than a direct equivalent. Substitution is valid if system design accommodates 1 MHz operation.

Q: What is the difference between 8-TSSOP and 8-TSSOP-B packaging? A: Both packages maintain 0.173" width (4.40mm) and 8-pin configuration suitable for surface mount assembly. The -B designation indicates a variant within the TSSOP family. Pin pitch and footprint compatibility must be verified against PCB design files before substitution.

Q: Are Microchip 24AA014 variants fully compatible with BR24C01-WDW6TP? A: Microchip 24AA014 series parts match all critical electrical parameters: 1Kbit capacity, I2C interface, 400 kHz clock frequency, 5ms write cycle, and -40°C to 85°C operating range. The 24AA014-I/ST variant uses identical 8-TSSOP packaging. Cross-manufacturer substitution is valid based on electrical and mechanical alignment.

Q: Why do some substitutes have lower minimum supply voltage? A: Parts specified for 1.6V or 1.7V minimum supply voltage include internal voltage regulation or lower-power design. These parts remain fully compatible with the original 2.5V to 5.5V range, as they support all voltages within that window. Lower minimum voltage represents enhanced capability without functional impact.

Q: Is inventory availability a selection criterion? A: Inventory levels reflect current stock status and should be verified with suppliers at time of procurement. BR24L01AFVT-WE2 shows highest availability (5873 units), while BR24G01FVT-3AGE2 offers 712 units. Microchip 24AA014HT-I/ST provides 3200 units. Availability should be confirmed for production scheduling.

Q: Do all substitutes maintain RoHS3 compliance? A: All listed substitute parts are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original BR24C01-WDW6TP specifications. Compliance certifications remain consistent across the substitute group.

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