Equivalent & Substitute Parts for 25LC010A-I/ST

Part Overview

The 25LC010A-I/ST is a 1Kbit EEPROM memory IC manufactured by Microchip Technology, featuring SPI interface operation at 10 MHz with 8-TSSOP surface mount packaging. This non-volatile memory device is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent memory capacity, interface protocol, package form factor, and electrical operating parameters align with the original specification, enabling direct functional replacement in circuit designs.

Key Parameters

Parameter	Value
Memory Size	1Kbit
Memory Organization	128 x 8
Memory Interface	SPI
Clock Frequency	10 MHz
Voltage Supply Range	2.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package / Case	8-TSSOP (0.173", 4.40mm Width)
Write Cycle Time	5ms
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitute parts for the 25LC010A-I/ST are qualified based on the following critical parameters:

Memory Capacity: 1Kbit (128 x 8 organization) - all substitutes maintain identical capacity
Interface Protocol: SPI - all substitutes use SPI communication
Package Form Factor: 8-TSSOP with 0.173" width and 4.40mm dimensions - mechanical compatibility
Supply Voltage Compatibility: Minimum 2.5V operation required for direct substitution
Operating Temperature Range: Minimum -40°C to 85°C coverage
Write Cycle Time: 5ms or faster acceptable

Substitutes are grouped into two categories based on clock frequency capability:

Category A (10 MHz Operation): Direct functional equivalents operating at identical 10 MHz clock frequency with matching electrical specifications.

Category B (20 MHz Operation): Enhanced performance substitutes with 20 MHz clock frequency, backward compatible with 10 MHz applications, offering higher speed capability within the same package and interface.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Voltage Supply	Operating Temperature	Write Cycle Time	Package	Inventory
25LC010A-I/ST	Microchip Technology	1Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	723 Pcs
25AA010A-I/ST	Microchip Technology	1Kbit	10 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	3305 Pcs
AT25010B-XHL-B	Microchip Technology	1Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	2078 Pcs
AT25010B-XHL-T	Microchip Technology	1Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	10200 Pcs
BR25H010FVT-2CE2	Rohm Semiconductor	1Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	4ms	8-TSSOP-B	2500 Pcs
CAV25010YE-GT3	onsemi	1Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	5ms	8-TSSOP	796 Pcs
M95010-RDW6TP	STMicroelectronics	1Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	17100 Pcs
M95010-WDW6TP	STMicroelectronics	1Kbit	20 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	5ms	8-TSSOP	29200 Pcs

Engineering Selection Recommendations

Direct Substitution (Identical Specifications):

25AA010A-I/ST qualifies as the primary direct substitute, maintaining 10 MHz clock frequency operation with identical memory organization and write cycle time. Extended supply voltage range (1.8V minimum) provides additional design flexibility. Active product status and ROHS3 compliance ensure long-term availability and regulatory alignment.

Performance-Enhanced Substitution (20 MHz Operation):

AT25010B-XHL-T, M95010-RDW6TP, and M95010-WDW6TP offer 20 MHz clock frequency operation while maintaining backward compatibility with 10 MHz applications. These parts support lower minimum supply voltage (1.8V) and provide higher inventory availability. Selection between these options depends on packaging preference (Cut Tape vs. Tape & Reel) and supply voltage requirements.

Automotive-Grade Alternatives:

BR25H010FVT-2CE2 and CAV25010YE-GT3 are qualified to AEC-Q100 automotive standards with extended operating temperature range (-40°C to 125°C). These parts maintain 10 MHz operation and 2.5V minimum supply voltage, suitable for applications requiring automotive-grade components.

Frequently Asked Questions (FAQ)

Q: Can AT25010B-XHL-T replace 25LC010A-I/ST in existing designs?

A: Yes. AT25010B-XHL-T maintains identical memory capacity (1Kbit), SPI interface, 8-TSSOP package, and operating temperature range. The 20 MHz clock frequency is backward compatible with 10 MHz applications. Supply voltage range (1.8V ~ 5.5V) encompasses the original specification (2.5V ~ 5.5V).

Q: What is the difference between 25AA010A-I/ST and 25LC010A-I/ST?

A: Both are Microchip Technology 1Kbit SPI EEPROM devices in 8-TSSOP packaging with identical clock frequency (10 MHz) and write cycle time (5ms). The primary difference is supply voltage range: 25AA010A-I/ST operates from 1.8V minimum, while 25LC010A-I/ST requires 2.5V minimum. The 25AA010A-I/ST is suitable for low-voltage applications.

Q: Are BR25H010FVT-2CE2 and CAV25010YE-GT3 suitable for non-automotive applications?

A: Yes. Automotive-grade qualification (AEC-Q100) indicates enhanced reliability and extended temperature range (-40°C to 125°C) but does not restrict use in non-automotive designs. These parts are functionally compatible with standard industrial applications.

Q: What packaging options are available for substitutes?

A: Substitute parts are available in Tube, Cut Tape (CT) & Digi-Reel, and Tape & Reel (TR) packaging formats. All maintain the same 8-TSSOP physical form factor (0.173" width, 4.40mm). Packaging selection depends on assembly process requirements and volume specifications.

Q: Can M95010-RDW6TP and M95010-WDW6TP be used interchangeably?

A: Both are STMicroelectronics 1Kbit SPI EEPROM devices with 20 MHz operation and identical memory specifications. The primary difference is supply voltage range: M95010-RDW6TP operates from 1.8V minimum, while M95010-WDW6TP requires 2.5V minimum. Selection depends on circuit supply voltage requirements.

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