24LC16BT-E/ST EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 24LC16BT-E/ST is a 16Kbit EEPROM memory IC manufactured by Microchip Technology, designed for I2C serial communication applications. This non-volatile memory device operates across a wide voltage range (2.5V to 5.5V) and temperature range (-40°C to 125°C), making it suitable for industrial and consumer electronics. The device is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified based on matching electrical specifications, memory organization, interface protocol, and package form factor to ensure direct functional replacement in circuit designs.

Key Parameters

Parameter	Specification
Memory Type	Non-Volatile EEPROM
Memory Size	16Kbit
Memory Organization	2K x 8
Memory Interface	I2C
Clock Frequency	400 kHz
Access Time	900 ns
Write Cycle Time	5 ms
Voltage Supply Range	2.5V ~ 5.5V
Operating Temperature	-40°C ~ 125°C
Package Type	8-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 24LC16BT-E/ST are qualified based on the following critical parameters that determine functional equivalence:

Core Electrical Parameters: Memory size (16Kbit), memory organization (2K x 8), interface protocol (I2C), clock frequency (400 kHz), and access time (900 ns) must match exactly. Write cycle time (5 ms) must be equivalent or faster.

Voltage and Temperature Specifications: Supply voltage range and operating temperature range define the operational envelope. Substitutes must support the minimum and maximum voltage and temperature requirements of the application.

Package and Mounting: All substitutes use the 8-TSSOP surface mount package with identical physical dimensions (0.173", 4.40mm Width) to ensure PCB compatibility without layout modifications.

Compliance and Quality: All substitutes maintain ROHS3 compliance, MSL 1 rating, and active product status to ensure supply chain reliability and regulatory conformance.

Parameter Comparison

Parameter	24LC16BT-E/ST (Main)	24LC16BHT-E/ST	R1EX24016ATAS0I#S0	CAV24C16YE-GT3
Manufacturer	Microchip Technology	Microchip Technology	Renesas Electronics	onsemi
Memory Size	16Kbit	16Kbit	16Kbit	16Kbit
Memory Organization	2K x 8	2K x 8	2K x 8	2K x 8
Memory Interface	I2C	I2C	I2C	I2C
Clock Frequency	400 kHz	400 kHz	400 kHz	400 kHz
Access Time	900 ns	900 ns	900 ns	900 ns
Write Cycle Time	5 ms	5 ms	5 ms	5 ms
Voltage Supply Range	2.5V ~ 5.5V	2.5V ~ 5.5V	1.8V ~ 5.5V	2.5V ~ 5.5V
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 125°C
Package Type	8-TSSOP	8-TSSOP	8-TSSOP	8-TSSOP
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active
Packaging Format	Tube	Tape & Reel	Tape & Reel	Tape & Reel

Engineering Selection Recommendations

24LC16BHT-E/ST (Microchip Technology): This part is a parametric equivalent with identical electrical specifications and temperature range to the main part. The primary difference is packaging format (Tape & Reel versus Tube). Selection is appropriate for high-volume production environments where tape and reel packaging provides manufacturing efficiency. All compliance certifications and product status match the main part.

R1EX24016ATAS0I#S0 (Renesas Electronics Corporation): This substitute offers extended lower voltage support (1.8V minimum versus 2.5V) but operates at a reduced maximum temperature of 85°C compared to the main part's 125°C. Selection is appropriate only for applications operating within the -40°C to 85°C temperature range and requiring lower voltage operation. Not suitable for high-temperature industrial applications.

CAV24C16YE-GT3 (onsemi): This part matches all electrical and temperature specifications of the main part and includes automotive-grade qualification (AEC-Q100). Selection is appropriate for automotive and harsh environment applications requiring enhanced reliability certification. Electrical performance and compliance are equivalent to the main part.

Frequently Asked Questions (FAQ)

Q: Can 24LC16BHT-E/ST be used as a direct replacement for 24LC16BT-E/ST?

A: Yes. Both parts are manufactured by Microchip Technology with identical electrical specifications, memory organization, interface protocol, voltage range, temperature range, and package form factor. The only difference is packaging format (Tape & Reel versus Tube), which does not affect circuit functionality.

Q: What is the key limitation of the R1EX24016ATAS0I#S0 substitute?

A: The maximum operating temperature is limited to 85°C, compared to 125°C for the main part. Applications requiring operation above 85°C must use the main part or alternative substitutes. The lower voltage minimum (1.8V) is an advantage for low-power applications.

Q: Is CAV24C16YE-GT3 suitable for automotive applications?

A: Yes. CAV24C16YE-GT3 carries AEC-Q100 automotive qualification and meets all electrical specifications of the main part. It is specifically qualified for automotive-grade reliability requirements.

Q: Do all substitutes use the same 8-TSSOP package?

A: Yes. All substitute parts use the 8-TSSOP surface mount package with identical physical dimensions (0.173", 4.40mm Width). No PCB layout modifications are required for substitution.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the regulatory and environmental standards of the main part.

Q: What is the difference between Tape & Reel and Tube packaging?

A: Tape & Reel packaging is used for automated assembly processes and high-volume production. Tube packaging is used for lower-volume applications and manual assembly. Both formats contain the same component; the difference is in handling and storage format only.

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