24LC64XT-E/ST EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 24LC64XT-E/ST is a 64Kbit EEPROM memory integrated circuit manufactured by Microchip Technology, designed for non-volatile data storage applications requiring I2C serial communication. This device operates across a wide supply voltage range of 2.5V to 5.5V and maintains functionality across industrial temperature ranges from -40°C to 125°C. The part is currently in active production status with 652 units available in stock. Alternative equivalent parts are necessary for supply chain flexibility, extended lead time management, and application-specific packaging requirements.

Key Parameters

Parameter	Value
Memory Size	64Kbit
Memory Organization	8K x 8
Memory Interface	I2C
Clock Frequency	400 kHz
Access Time	900 ns
Write Cycle Time	5ms
Voltage Supply Range	2.5V ~ 5.5V
Operating Temperature	-40°C ~ 125°C
Package Type	8-TSSOP
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 24LC64XT-E/ST is determined by strict equivalence across the following critical parameters: 64Kbit memory capacity, 8K x 8 memory organization, I2C interface protocol, 400 kHz clock frequency, 900 ns access time, 5ms write cycle time, 2.5V to 5.5V supply voltage range, -40°C to 125°C operating temperature, 8-TSSOP package configuration, and surface mount mounting type. All identified substitute parts maintain identical electrical and functional specifications. Packaging format variations (Tape & Reel, Tube, Cut Tape & Digi-Reel) do not affect electrical compatibility and represent logistical options only.

Parameter Comparison

Part Number	Manufacturer	Memory Size	Memory Organization	Interface	Clock Frequency	Access Time	Write Cycle Time	Supply Voltage	Operating Temperature	Package	Packaging Format	Inventory	Product Status
24LC64XT-E/ST	Microchip Technology	64Kbit	8K x 8	I2C	400 kHz	900 ns	5ms	2.5V ~ 5.5V	-40°C ~ 125°C	8-TSSOP	Tape & Reel (TR)	652 Pcs	Active
24LC64X-E/ST	Microchip Technology	64Kbit	8K x 8	I2C	400 kHz	900 ns	5ms	2.5V ~ 5.5V	-40°C ~ 125°C	8-TSSOP	Tube	1366 Pcs	Active
24LC64T-E/ST	Microchip Technology	64Kbit	8K x 8	I2C	400 kHz	900 ns	5ms	2.5V ~ 5.5V	-40°C ~ 125°C	8-TSSOP	Cut Tape (CT) & Digi-Reel®	3300 Pcs	Active
CAV24C64YE-GT3	onsemi	64Kbit	8K x 8	I2C	400 kHz	900 ns	5ms	2.5V ~ 5.5V	-40°C ~ 125°C	8-TSSOP	Tape & Reel (TR)	3062 Pcs	Active

Engineering Selection Recommendations

All four parts maintain active production status and full ROHS3 compliance. The 24LC64X-E/ST and 24LC64T-E/ST are direct Microchip Technology equivalents differing only in packaging format. The 24LC64T-E/ST carries DiGi-Electronics Programmable verification status, providing additional supply chain documentation. The CAV24C64YE-GT3 is manufactured by onsemi and includes automotive-grade qualification under AEC-Q100 standard, making it suitable for applications requiring automotive component certification. Selection between Microchip and onsemi variants depends on supply availability and application-specific qualification requirements. Packaging format selection (Tape & Reel, Tube, or Cut Tape & Digi-Reel) should align with assembly process requirements and inventory management practices.

Frequently Asked Questions (FAQ)

Q: Are all substitute parts electrically identical to the 24LC64XT-E/ST? A: Yes. All substitute parts maintain identical memory capacity (64Kbit), organization (8K x 8), I2C interface, clock frequency (400 kHz), access time (900 ns), write cycle time (5ms), supply voltage range (2.5V to 5.5V), and operating temperature range (-40°C to 125°C).

Q: What is the difference between 24LC64XT-E/ST, 24LC64X-E/ST, and 24LC64T-E/ST? A: These are Microchip Technology variants differing only in packaging format. The XT variant uses Tape & Reel, the X variant uses Tube, and the T variant uses Cut Tape & Digi-Reel. Electrical specifications and pinout are identical.

Q: Can the CAV24C64YE-GT3 replace the 24LC64XT-E/ST in standard applications? A: Yes. The CAV24C64YE-GT3 is parametrically equivalent and maintains all required electrical specifications. The automotive-grade qualification is an additional feature not required for non-automotive applications.

Q: Does packaging format affect circuit board compatibility? A: No. Packaging format (Tape & Reel, Tube, Cut Tape & Digi-Reel) affects only supply chain logistics and assembly handling. The physical component package (8-TSSOP) and pinout remain identical across all variants.

Q: Are there any compliance differences between the substitute parts? A: All parts are ROHS3 compliant with MSL rating of 1 (Unlimited). The CAV24C64YE-GT3 includes additional AEC-Q100 automotive qualification. REACH status is unaffected for all variants.

Q: Which substitute part has the highest inventory availability? A: The 24LC64T-E/ST has the highest inventory with 3300 units in stock, followed by the CAV24C64YE-GT3 with 3062 units.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message