24LC08BHT-I/ST EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 24LC08BHT-I/ST is an 8Kbit I2C EEPROM memory IC manufactured by Microchip Technology in 8-TSSOP surface mount packaging. This non-volatile memory device operates across a wide supply voltage range (2.5V to 5.5V) and temperature range (-40°C to 85°C), making it suitable for embedded systems, industrial controllers, and consumer electronics requiring persistent data storage.

The part is currently in active production status. Equivalent substitute parts may be required due to supply chain constraints, inventory availability, or specific packaging preferences while maintaining full electrical and mechanical compatibility.

Key Parameters

Parameter	Specification
Memory Size	8Kbit
Memory Format	EEPROM
Memory Organization	256 x 8 x 4
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 ~ 85°C
Package Type	8-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the 24LC08BHT-I/ST are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

Memory Size: 8Kbit
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 ~ 85°C
Package Type: 8-TSSOP
Mounting Type: Surface Mount

All identified substitute parts maintain identical electrical specifications and package dimensions, ensuring direct functional replacement without circuit redesign or PCB layout modifications.

Parameter Comparison

Parameter	24LC08BHT-I/ST	24LC08BT-I/ST	M24C08-WDW6TP
Manufacturer	Microchip Technology	Microchip Technology	STMicroelectronics
Memory Size	8Kbit	8Kbit	8Kbit
Memory Format	EEPROM	EEPROM	EEPROM
Memory Interface	I2C	I2C	I2C
Clock Frequency	400 kHz	400 kHz	400 kHz
Access Time	900 ns	900 ns	900 ns
Write Cycle Time	5ms	5ms	5ms
Voltage Supply	2.5V ~ 5.5V	2.5V ~ 5.5V	2.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package Type	8-TSSOP	8-TSSOP	8-TSSOP
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Not For New Designs

Engineering Selection Recommendations

24LC08BT-I/ST (Microchip Technology): This part is electrically and mechanically identical to the 24LC08BHT-I/ST with active product status. The primary difference is packaging format (Cut Tape & Digi-Reel versus Tape & Reel). This substitute is suitable for new designs and ongoing production with higher inventory availability (3450 pcs in stock).

M24C08-WDW6TP (STMicroelectronics): This part meets all electrical and mechanical specifications with ROHS3 compliance and unlimited moisture sensitivity rating. However, the product status is listed as "Not For New Designs," indicating this part is in mature or end-of-life phase. Selection of this substitute should be limited to legacy system maintenance or applications where supply continuity is not a primary concern. Inventory availability is significantly higher (58855 pcs in stock).

For new product designs, 24LC08BT-I/ST is the preferred substitute. For existing production lines or legacy systems, M24C08-WDW6TP remains functionally compatible.

Frequently Asked Questions (FAQ)

Q: Can 24LC08BT-I/ST be used as a direct replacement for 24LC08BHT-I/ST?

A: Yes. Both parts are manufactured by Microchip Technology with identical electrical specifications, memory organization, I2C interface, timing parameters, and 8-TSSOP package dimensions. The only difference is the packaging format (Cut Tape & Digi-Reel versus Tape & Reel). No circuit modifications or PCB layout changes are required.

Q: What is the difference between Tape & Reel (TR) and Cut Tape (CT) & Digi-Reel packaging?

A: Tape & Reel is continuous packaging on a reel suitable for high-volume automated assembly. Cut Tape & Digi-Reel provides individual tape segments or reel options for lower-volume production or component selection. The electrical and mechanical specifications of the component itself remain identical.

Q: Is M24C08-WDW6TP suitable for new product designs?

A: No. The M24C08-WDW6TP is marked as "Not For New Designs," indicating it is in mature or end-of-life production phase. While it remains functionally compatible with the 24LC08BHT-I/ST, it should be used only for legacy system support or maintenance applications where supply continuity cannot be guaranteed.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The 24LC08BHT-I/ST, 24LC08BT-I/ST, and M24C08-WDW6TP are all ROHS3 compliant with moisture sensitivity level 1 (unlimited), meeting environmental and regulatory requirements for industrial and consumer applications.

Q: Can these parts be used interchangeably in the same PCB assembly?

A: Yes. All three parts share identical 8-TSSOP package dimensions (0.173" × 4.40mm width), pin configuration, and electrical specifications. They can be used interchangeably in the same PCB design without layout modifications or design changes.

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