25LC128T-I/MF EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 25LC128T-I/MF is a 128Kbit Serial Peripheral Interface (SPI) EEPROM memory integrated circuit manufactured by Microchip Technology. This non-volatile memory device operates at 10 MHz with a supply voltage range of 2.5V to 5.5V and is housed in an 8-pin DFN surface mount package. The device is actively produced and ROHS3 compliant, making it suitable for embedded systems, data logging applications, and configuration storage in industrial and consumer electronics. Substitute parts are identified when equivalent electrical specifications, memory capacity, interface protocol, and package dimensions are maintained across alternative packaging formats from the same manufacturer.

Substiute Parts

25LC128T-I/MF

Microchip TechnologyIn Stock: 71225LC128T-I/MF Datasheet

Current PartRFQ

25LC128-I/MF

Microchip TechnologyIn Stock: 215825LC128-I/MF Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 25LC128T-I/MF are identified based on strict equivalence of the following critical parameters:

• Memory capacity: 128Kbit
• Memory organization: 16K x 8
• Interface protocol: SPI
• Operating frequency: 10 MHz
• Write cycle time: 5ms
• Supply voltage range: 2.5V ~ 5.5V
• Operating temperature range: -40°C ~ 85°C
• Package type: 8-VDFN Exposed Pad (8-DFN-S 6x5)
• Mounting technology: Surface Mount
• Manufacturer: Microchip Technology
• Compliance: ROHS3 Compliant

The primary difference between the main part and its substitute is the packaging format. The 25LC128T-I/MF is supplied in Tape & Reel (TR) format, while the 25LC128-I/MF is supplied in Tube packaging. Both parts share identical electrical specifications, memory architecture, and physical package dimensions, making them functionally interchangeable at the component level.

Parameter Comparison

Engineering Selection Recommendations

Both the 25LC128T-I/MF and 25LC128-I/MF are active production parts from Microchip Technology with identical electrical and functional specifications. Selection between these parts is determined by procurement and assembly requirements rather than technical performance criteria.

The 25LC128T-I/MF in Tape & Reel format is optimized for high-volume automated assembly operations where components are fed directly into pick-and-place equipment. The 25LC128-I/MF in Tube packaging is suitable for lower-volume production, manual assembly, or component inventory management where individual part handling is required.

Both parts maintain ROHS3 compliance and unlimited moisture sensitivity level (MSL 1), ensuring compatibility with standard surface mount assembly processes and long-term storage without special handling requirements. The choice between these substitutes does not impact circuit design, firmware compatibility, or system performance.

Frequently Asked Questions (FAQ)

Q: Are the 25LC128T-I/MF and 25LC128-I/MF electrically identical?

A: Yes. Both parts are manufactured by Microchip Technology with identical memory capacity (128Kbit), interface protocol (SPI), operating frequency (10 MHz), supply voltage range (2.5V ~ 5.5V), and temperature specifications (-40°C ~ 85°C). The only difference is the packaging format: Tape & Reel versus Tube.

Q: Can I substitute the 25LC128-I/MF for the 25LC128T-I/MF in my circuit design?

A: Yes. The physical package dimensions (8-DFN-S 6x5) and pin configuration are identical. No circuit modifications or PCB layout changes are required. The substitution is valid at the component level.

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

A: Tape & Reel packaging supplies components on a continuous carrier tape wound on a reel, designed for automated pick-and-place assembly. Tube packaging supplies components in a plastic tube, typically used for manual handling or lower-volume assembly. Both formats contain the same component with identical specifications.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical MSL ratings (1 - Unlimited). They meet the same regulatory and environmental standards.

Q: Which part should I select for my application?

A: Select 25LC128T-I/MF if your assembly process uses automated pick-and-place equipment with tape-fed component systems. Select 25LC128-I/MF if your assembly process requires tube-packaged components or if you need higher inventory availability for manual assembly operations.