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Equivalent & Substitute Parts for 25LC080BT-E/ST
Part Overview
The 25LC080BT-E/ST is an 8Kbit EEPROM memory IC manufactured by Microchip Technology, featuring SPI interface operation at 10 MHz with 8-TSSOP surface mount packaging. This device is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent memory capacity, interface protocol, and package form factor are required while accommodating variations in clock frequency, voltage supply range, operating temperature, and write cycle performance specifications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Memory Size | 8Kbit |
| Memory Organization | 1K x 8 |
| Memory Interface | SPI |
| Clock Frequency | 10 MHz |
| Package / Case | 8-TSSOP (0.173", 4.40mm Width) |
| Voltage - Supply | 2.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 125°C |
| Write Cycle Time - Word, Page | 5ms |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution of the 25LC080BT-E/ST is determined by strict equivalence in the following parameters: 8Kbit memory capacity, 1K x 8 memory organization, SPI interface protocol, and 8-TSSOP package form factor. Substitute parts are grouped based on compatibility within these core electrical and mechanical specifications.
Allowable variations in substitute parts include:
- Clock Frequency: 10 MHz to 20 MHz (higher frequency maintains backward compatibility)
- Voltage Supply Range: 2.5V ~ 5.5V to 1.7V ~ 5.5V (wider or equivalent ranges)
- Operating Temperature: -40°C ~ 125°C to -40°C ~ 85°C or -40°C ~ 105°C
- Write Cycle Time: 4ms to 5ms (faster or equivalent performance)
- Packaging Format: Tape & Reel (TR), Cut Tape (CT) & Digi-Reel®, or Tube
- Automotive Grade and AEC-Q100 Qualification: Optional enhancements
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Memory Size | Clock Frequency | Voltage - Supply | Operating Temperature | Write Cycle Time | Package | Automotive Grade |
|---|---|---|---|---|---|---|---|---|
| 25LC080BT-E/ST | Microchip Technology | 8Kbit | 10 MHz | 2.5V ~ 5.5V | -40°C ~ 125°C | 5ms | 8-TSSOP | No |
| AT25080B-XHL-B | Microchip Technology | 8Kbit | 20 MHz | 1.8V ~ 5.5V | -40°C ~ 85°C | 5ms | 8-TSSOP | No |
| AT25080B-XHL-T | Microchip Technology | 8Kbit | 20 MHz | 1.8V ~ 5.5V | -40°C ~ 85°C | 5ms | 8-TSSOP | No |
| BR25H080FVT-2CE2 | Rohm Semiconductor | 8Kbit | 10 MHz | 2.5V ~ 5.5V | -40°C ~ 125°C | 4ms | 8-TSSOP | Yes (AEC-Q100) |
| CAT25080YI-GT3 | onsemi | 8Kbit | Not Specified | 1.8V ~ 5.5V | -40°C ~ 85°C | 5ms | 8-TSSOP | No |
| CAV25080YE-GT3 | onsemi | 8Kbit | 20 MHz | 2.5V ~ 5.5V | -40°C ~ 125°C | 5ms | 8-TSSOP | Yes (AEC-Q100) |
| M95080-DFDW6TP | STMicroelectronics | 8Kbit | 20 MHz | 1.7V ~ 5.5V | -40°C ~ 85°C | 5ms | 8-TSSOP | No |
| M95080-DRDW3TP/K | STMicroelectronics | 8Kbit | 20 MHz | 1.8V ~ 5.5V | -40°C ~ 125°C | 4ms | 8-TSSOP | Yes (AEC-Q100) |
| M95080-DRDW8TP/K | STMicroelectronics | 8Kbit | 20 MHz | 1.8V ~ 5.5V | -40°C ~ 105°C | 4ms | 8-TSSOP | Yes (AEC-Q100) |
| M95080-RDW6TP | STMicroelectronics | 8Kbit | 20 MHz | 1.8V ~ 5.5V | -40°C ~ 85°C | 5ms | 8-TSSOP | No |
| M95080-WDW6TP | STMicroelectronics | 8Kbit | 20 MHz | 2.5V ~ 5.5V | -40°C ~ 85°C | 5ms | 8-TSSOP | No |
Engineering Selection Recommendations
All listed substitute parts maintain Active product status and ROHS3 compliance equivalent to the 25LC080BT-E/ST. Selection between substitute parts depends on application-specific requirements:
For applications requiring automotive-grade qualification and AEC-Q100 certification, BR25H080FVT-2CE2, CAV25080YE-GT3, M95080-DRDW3TP/K, and M95080-DRDW8TP/K are qualified options. BR25H080FVT-2CE2 and CAV25080YE-GT3 maintain the original 2.5V ~ 5.5V supply voltage range and -40°C ~ 125°C operating temperature of the 25LC080BT-E/ST while providing automotive qualification.
For applications where higher clock frequency (20 MHz) is beneficial without automotive requirements, AT25080B-XHL-B, AT25080B-XHL-T, M95080-DFDW6TP, M95080-RDW6TP, and M95080-WDW6TP provide 20 MHz operation. M95080-WDW6TP maintains the 2.5V ~ 5.5V supply voltage range.
For applications with extended lower voltage operation requirements, M95080-DFDW6TP supports 1.7V minimum supply voltage, and AT25080B-XHL-B, AT25080B-XHL-T, CAT25080YI-GT3, M95080-DRDW3TP/K, M95080-DRDW8TP/K, and M95080-RDW6TP support 1.8V minimum supply voltage.
Frequently Asked Questions (FAQ)
Q: Can AT25080B-XHL-T replace 25LC080BT-E/ST directly?
A: AT25080B-XHL-T is electrically compatible as a substitute. Both devices feature 8Kbit SPI EEPROM in 8-TSSOP packaging with identical memory organization. AT25080B-XHL-T operates at 20 MHz (versus 10 MHz) and supports 1.8V ~ 5.5V supply voltage (versus 2.5V ~ 5.5V). Operating temperature range is -40°C ~ 85°C (versus -40°C ~ 125°C). Verify application requirements for clock frequency, voltage supply minimum, and temperature range compatibility before selection.
Q: What is the difference between BR25H080FVT-2CE2 and 25LC080BT-E/ST?
A: BR25H080FVT-2CE2 is manufactured by Rohm Semiconductor and includes AEC-Q100 automotive qualification. Both devices share identical 8Kbit capacity, 10 MHz clock frequency, 2.5V ~ 5.5V supply range, and -40°C ~ 125°C operating temperature. BR25H080FVT-2CE2 features 4ms write cycle time (versus 5ms) and 8-TSSOP-B package designation. Selection depends on automotive qualification requirement.
Q: Are M95080 series parts compatible with 25LC080BT-E/ST?
A: M95080 series parts (M95080-DFDW6TP, M95080-DRDW3TP/K, M95080-DRDW8TP/K, M95080-RDW6TP, M95080-WDW6TP) manufactured by STMicroelectronics are compatible substitutes. All feature 8Kbit SPI EEPROM in 8-TSSOP packaging. Most variants operate at 20 MHz with 4ms or 5ms write cycle time. Voltage supply ranges vary from 1.7V to 2.5V minimum. Operating temperature ranges span -40°C ~ 85°C to -40°C ~ 125°C. Verify specific variant parameters for application compatibility.
Q: What packaging options are available for substitute parts?
A: Substitute parts are available in Tape & Reel (TR), Cut Tape (CT) & Digi-Reel®, and Tube packaging formats. 25LC080BT-E/ST is supplied in Tape & Reel format. AT25080B-XHL-B is supplied in Tube. AT25080B-XHL-T is supplied in Cut Tape & Digi-Reel®. All STMicroelectronics M95080 variants and Rohm BR25H080FVT-2CE2 are supplied in Tape & Reel format. Packaging selection does not affect electrical compatibility.
Q: Can CAV25080YE-GT3 operate at the same temperature range as 25LC080BT-E/ST?
A: Yes. CAV25080YE-GT3 operates across -40°C ~ 125°C, matching the 25LC080BT-E/ST temperature range. CAV25080YE-GT3 additionally includes AEC-Q100 automotive qualification and operates at 20 MHz clock frequency with 2.5V ~ 5.5V supply voltage range identical to the original part.
Q: What is the significance of write cycle time differences?
A: Write cycle time specifies the duration required to complete a single word or page write operation. 25LC080BT-E/ST features 5ms write cycle time. Substitute parts with 4ms write cycle time (BR25H080FVT-2CE2, M95080-DRDW3TP/K, M95080-DRDW8TP/K) provide faster write performance. Faster write cycle time does not affect backward compatibility; applications designed for 5ms operation function correctly with 4ms devices.
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