AT25010-10PI EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The AT25010-10PI is a 1Kbit Serial Peripheral Interface (SPI) EEPROM memory integrated circuit manufactured by Microchip Technology. This device operates at 3 MHz clock frequency with a supply voltage range of 4.5V to 5.5V and is housed in an 8-DIP through-hole package. The AT25010-10PI is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and component procurement.

Substitute parts must maintain functional equivalence in memory capacity, interface protocol, package form factor, and operating temperature range while potentially offering improved specifications such as higher clock frequency, wider supply voltage tolerance, or active product status.

Key Parameters

Parameter	Value
Memory Size	1Kbit
Memory Organization	128 x 8
Memory Interface	SPI
Clock Frequency	3 MHz
Write Cycle Time	5ms
Voltage Supply Range	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package Type	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole

Substitute Part Grouping Explanation

Substitution compatibility for the AT25010-10PI is determined by the following mandatory parameters:

Memory Capacity: Must be 1Kbit with 128 x 8 organization
Interface Protocol: Must be SPI
Package Form Factor: Must be 8-DIP (0.300", 7.62mm) through-hole
Operating Temperature Range: Must support -40°C to 85°C minimum
Write Cycle Time: Must not exceed 5ms
Supply Voltage Compatibility: Substitute must operate within or encompass the original 4.5V ~ 5.5V range

The 25AA010A-I/P qualifies as a direct substitute because it maintains identical memory capacity, organization, interface type, package configuration, and operating temperature specifications. Enhanced specifications in clock frequency and supply voltage range represent improvements that do not compromise compatibility.

Parameter Comparison

Parameter	AT25010-10PI (Main Part)	25AA010A-I/P (Substitute)
Manufacturer	Microchip Technology	Microchip Technology
Memory Size	1Kbit	1Kbit
Memory Organization	128 x 8	128 x 8
Memory Interface	SPI	SPI
Clock Frequency	3 MHz	10 MHz
Write Cycle Time	5ms	5ms
Voltage Supply Range	4.5V ~ 5.5V	1.8V ~ 5.5V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Package Type	8-DIP (0.300", 7.62mm)	8-DIP (0.300", 7.62mm)
Mounting Type	Through Hole	Through Hole
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant

Engineering Selection Recommendations

The 25AA010A-I/P is a qualified substitute for the AT25010-10PI based on the following engineering criteria:

Functional Compatibility: Both devices share identical memory capacity (1Kbit), organization (128 x 8), SPI interface protocol, package configuration (8-DIP), and operating temperature range (-40°C to 85°C). Pin-to-pin compatibility is maintained, enabling direct board-level replacement without circuit modification.

Enhanced Specifications: The 25AA010A-I/P provides superior clock frequency (10 MHz versus 3 MHz) and extended supply voltage tolerance (1.8V to 5.5V versus 4.5V to 5.5V). These enhancements ensure compatibility with the original design while offering improved operational flexibility.

Product Status and Compliance: The AT25010-10PI is obsolete, whereas the 25AA010A-I/P maintains active product status with ROHS3 compliance certification. This transition addresses long-term component availability and regulatory requirements.

Electrical Compatibility: The 25AA010A-I/P operates within the original supply voltage specification (4.5V to 5.5V range is encompassed by 1.8V to 5.5V range), ensuring seamless integration into existing 5V systems without additional circuit design modifications.

Frequently Asked Questions (FAQ)

Q: Can the 25AA010A-I/P directly replace the AT25010-10PI without PCB modifications?

A: Yes. Both devices are pin-compatible 8-DIP packages with identical pinout, memory organization, and SPI interface. Direct board-level substitution is possible without circuit redesign.

Q: What is the significance of the higher 10 MHz clock frequency in the 25AA010A-I/P?

A: The 10 MHz clock frequency in the substitute part exceeds the original 3 MHz specification. This enhancement does not compromise compatibility; systems designed for 3 MHz operation function correctly at higher clock speeds. The substitute maintains the same 5ms write cycle time, ensuring timing-critical operations remain unaffected.

Q: Does the extended supply voltage range (1.8V to 5.5V) of the 25AA010A-I/P affect compatibility?

A: No. The extended range is a superset of the original 4.5V to 5.5V specification. Systems operating at 5V continue to function identically. The wider tolerance provides additional design flexibility for future applications.

Q: Why is RoHS compliance important for this substitution?

A: The 25AA010A-I/P is ROHS3 compliant, whereas the AT25010-10PI is non-compliant. For new designs and systems subject to regulatory requirements, the compliant substitute ensures adherence to environmental and material restriction standards.

Q: Are there any package or mounting differences between these parts?

A: No. Both devices use identical 8-DIP (0.300", 7.62mm) through-hole packages. Mounting footprints, lead spacing, and board assembly procedures remain unchanged.

Q: What is the inventory status of the substitute part?

A: The 25AA010A-I/P is actively manufactured with 6240 pieces in stock, ensuring reliable procurement compared to the obsolete AT25010-10PI.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message