Equivalent & Substitute Parts for 25C080T-I/SN

Part Overview

The 25C080T-I/SN is an 8Kbit EEPROM memory IC manufactured by Microchip Technology, featuring SPI interface operation at 3 MHz with 8-SOIC surface mount packaging. This part is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent memory capacity, interface type, and package form factor are maintained while accommodating variations in clock frequency, voltage supply range, and operating temperature specifications.

Key Parameters

Parameter	Value
Memory Size	8Kbit
Memory Organization	1K 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 / Case	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution logic for the 25C080T-I/SN is based on the following criteria:

Primary Compatibility Requirements:

Memory capacity: 8Kbit (1K x 8 organization)
Interface protocol: SPI
Package type: 8-SOIC with 0.154" width (3.90mm)
Mounting: Surface mount

Allowable Parameter Variations:

Clock frequency may exceed 3 MHz (backward compatible at lower speeds)
Voltage supply range may be broader than 4.5V ~ 5.5V (must include this range)
Operating temperature range may extend beyond -40°C ~ 85°C
Write cycle time equal to or less than 5ms
Packaging format (Tube, Tape & Reel, Cut Tape) does not affect electrical compatibility

Non-Substitutable Variations:

Different memory capacity or organization
Different interface protocol
Different package footprint or width specification
Different mounting technology

Parameter Comparison

Part Number	Manufacturer	Memory Size	Clock Frequency	Voltage Supply	Operating Temp	Write Cycle Time	Package	Packaging Format
25C080T-I/SN	Microchip Technology	8Kbit	3 MHz	4.5V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC	Cut Tape & Digi-Reel
25C080-I/SN	Microchip Technology	8Kbit	3 MHz	4.5V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC	Tube
25AA080AT-I/SN	Microchip Technology	8Kbit	10 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC	Tape & Reel
25LC080AT-I/SN	Microchip Technology	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC	Tape & Reel
25LC080BT-I/SN	Microchip Technology	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC	Tape & Reel
25LC080CT-I/SN	Microchip Technology	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC	Tape & Reel
25LC080DT-E/SN	Microchip Technology	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	5ms	8-SOIC	Cut Tape & Digi-Reel
AT25080B-SSHL-B	Microchip Technology	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC	Tube
AT25080B-SSHL-T	Microchip Technology	8Kbit	20 MHz	1.8V ~ 5.5V	-40°C ~ 85°C	5ms	8-SOIC	Cut Tape & Digi-Reel
BR25H080F-2CE2	Rohm Semiconductor	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	4ms	8-SOIC	Tape & Reel
BR25H080F-2LBH2	Rohm Semiconductor	8Kbit	10 MHz	2.5V ~ 5.5V	-40°C ~ 125°C	4ms	8-SOIC	Tape & Reel

Engineering Selection Recommendations

Direct Equivalent (Identical Specifications): The 25C080-I/SN is electrically and functionally identical to the 25C080T-I/SN, differing only in packaging format (Tube versus Cut Tape & Digi-Reel). Selection between these parts depends on procurement and assembly requirements.

Microchip Technology 25AA080 and 25LC080 Series: Parts 25AA080AT-I/SN, 25LC080AT-I/SN, 25LC080BT-I/SN, and 25LC080CT-I/SN operate at 10 MHz clock frequency, providing higher speed capability while maintaining 8Kbit capacity and 8-SOIC packaging. These parts are suitable for applications requiring faster SPI communication. Voltage supply ranges vary: 25AA080AT-I/SN supports 1.8V minimum, while 25LC080 variants support 2.5V minimum. All maintain -40°C ~ 85°C operating temperature and 5ms write cycle time.

Extended Temperature Operation: The 25LC080DT-E/SN extends operating temperature to -40°C ~ 125°C while maintaining 10 MHz operation and 8Kbit capacity. This part is suitable for industrial and automotive applications requiring wider temperature range.

Microchip AT25080B Series: Parts AT25080B-SSHL-B and AT25080B-SSHL-T operate at 20 MHz clock frequency with 1.8V ~ 5.5V voltage supply range. These parts provide the highest speed operation within the 8Kbit EEPROM category. Moisture sensitivity level differs: AT25080B-SSHL-B is MSL 3 (168 Hours), while AT25080B-SSHL-T is MSL 1 (Unlimited).

Rohm Semiconductor BR25H080F Series: Parts BR25H080F-2CE2 and BR25H080F-2LBH2 are manufactured by Rohm Semiconductor with 10 MHz operation, 2.5V ~ 5.5V voltage supply, and extended -40°C ~ 125°C operating temperature. Write cycle time is 4ms, meeting or exceeding the 5ms specification. Both parts carry AEC-Q100 automotive qualification. Package width is 0.173" (4.40mm) versus 0.154" (3.90mm) for Microchip parts; physical footprint compatibility must be verified for PCB layout.

Compliance and Certification: All listed substitute parts maintain ROHS3 compliance and REACH unaffected status. Product status is Active for all parts. DiGi-Electronics Programmable verification status varies; parts marked as Not Verified require confirmation of programming capability for specific applications.

Frequently Asked Questions (FAQ)

Q: Can 25LC080 series parts directly replace 25C080T-I/SN? A: Yes. The 25LC080 series maintains 8Kbit capacity, SPI interface, and 8-SOIC packaging. Higher clock frequency (10 MHz versus 3 MHz) is backward compatible. Voltage supply range differences must be verified: 25LC080 variants require minimum 2.5V, while 25C080T-I/SN requires 4.5V minimum. For applications operating below 2.5V, 25AA080AT-I/SN supports 1.8V minimum.

Q: What is the difference between 25C080-I/SN and 25C080T-I/SN? A: These parts are electrically identical. The difference is packaging format: 25C080-I/SN is supplied in Tube, while 25C080T-I/SN is supplied in Cut Tape & Digi-Reel format. Selection depends on assembly equipment compatibility and procurement preferences.

Q: Are Rohm BR25H080F parts compatible with Microchip 25C080T-I/SN? A: Electrical compatibility is confirmed: both maintain 8Kbit capacity, SPI interface, and -40°C ~ 85°C operating temperature range. Physical package width differs: Rohm parts are 0.173" (4.40mm) versus Microchip 0.154" (3.90mm). PCB layout and socket compatibility must be verified before substitution.

Q: Which substitute part offers the widest voltage supply range? A: AT25080B-SSHL-B and AT25080B-SSHL-T support 1.8V ~ 5.5V, the broadest range among listed parts. These parts also provide the highest clock frequency at 20 MHz.

Q: Can I use AT25080B-SSHL-T instead of AT25080B-SSHL-B? A: Yes. Both parts are electrically identical. AT25080B-SSHL-T is supplied in Cut Tape & Digi-Reel format with MSL 1 (Unlimited), while AT25080B-SSHL-B is supplied in Tube format with MSL 3 (168 Hours). Selection depends on packaging requirements and moisture sensitivity level tolerance.

Q: What does MSL (Moisture Sensitivity Level) mean for component selection? A: MSL indicates maximum time a component can be stored in ambient conditions (typically 30°C, 60% relative humidity) before requiring baking before reflow soldering. MSL 1 (Unlimited) has no time restriction. MSL 3 (168 Hours) requires baking if storage exceeds 168 hours. For long-term inventory, MSL 1 parts are preferred.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed parts maintain ROHS3 compliance and REACH unaffected status, meeting environmental and regulatory requirements.

Q: What is the significance of DiGi-Electronics Programmable verification? A: This indicates whether the part has been verified for programming capability through DiGi-Electronics testing. Parts marked "Not Verified" may still be programmable but have not undergone this specific verification process. Confirmation with the manufacturer or supplier is recommended for critical applications.

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