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24LC014T-E/SN EEPROM Memory IC Equivalent & Substitute Parts
Part Overview
The 24LC014T-E/SN is a 1Kbit EEPROM memory IC manufactured by Microchip Technology, featuring I2C interface operation at 400 kHz with 8-SOIC surface mount packaging. This non-volatile memory device is designed for applications requiring low-capacity data storage with standard I2C bus compatibility. The part is currently in active production status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).
Substitute parts are necessary when the original part number becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when enhanced performance specifications (such as higher clock frequency or extended temperature ranges) are needed for specific application requirements.
Substiute Parts
Key Parameters
| Parameter | 24LC014T-E/SN |
|---|---|
| Memory Size | 1Kbit |
| Memory Organization | 128 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 (TA) |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| RoHS Status | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the 24LC014T-E/SN is determined by the following critical parameters:
Core Functional Requirements:
- Memory capacity: 1Kbit (128 x 8 organization)
- Interface protocol: I2C
- Clock frequency: 400 kHz minimum
- Package type: 8-SOIC or 8-SOP (mechanically compatible)
- Write cycle time: 5 ms maximum
Electrical Compatibility:
- Supply voltage range must encompass or overlap with 2.5V ~ 5.5V
- Access time specifications must not exceed 900 ns for direct pin-compatible replacement
- Operating temperature range must support -40°C minimum
Manufacturing & Compliance:
- RoHS3 compliance required
- MSL rating of 1 or 3 acceptable for standard manufacturing processes
- Active product status preferred for long-term availability
Substitute parts are grouped into two categories: direct replacements with identical electrical specifications and functional equivalents with enhanced performance characteristics (higher clock frequency, extended voltage range, or improved access time).
Parameter Comparison
| Part Number | Manufacturer | Memory Size | Clock Frequency | Access Time | Voltage Supply | Operating Temp | Package | Packaging Format |
|---|---|---|---|---|---|---|---|---|
| 24LC014T-E/SN | Microchip Technology | 1Kbit | 400 kHz | 900 ns | 2.5V ~ 5.5V | -40°C ~ 125°C | 8-SOIC (3.90mm) | Tape & Reel |
| 24LC01BT-E/SN | Microchip Technology | 1Kbit | 400 kHz | 4.6 µs | 2.5V ~ 5.5V | -40°C ~ 125°C | 8-SOIC (3.90mm) | Cut Tape & Digi-Reel |
| AT24C01D-SSHM-B | Microchip Technology | 1Kbit | 1 MHz | 4.5 µs | 1.7V ~ 3.6V | -40°C ~ 85°C | 8-SOIC (3.90mm) | Bulk |
| AT24C01D-SSHM-T | Microchip Technology | 1Kbit | 1 MHz | 4.5 µs | 1.7V ~ 3.6V | -40°C ~ 85°C | 8-SOIC (3.90mm) | Cut Tape & Digi-Reel |
| BR24A01AF-WLBH2 | Rohm Semiconductor | 1Kbit | 400 kHz | Not specified | 2.5V ~ 5.5V | -40°C ~ 105°C | 8-SOP (4.40mm) | Tape & Reel |
| BR24A01AF-WME2 | Rohm Semiconductor | 1Kbit | 400 kHz | Not specified | 2.5V ~ 5.5V | -40°C ~ 105°C | 8-SOP (4.40mm) | Tape & Reel |
| BR24G01F-3GTE2 | Rohm Semiconductor | 1Kbit | 400 kHz | Not specified | 1.6V ~ 5.5V | -40°C ~ 85°C | 8-SOP (4.40mm) | Tape & Reel |
| BR24L01AF-WE2 | Rohm Semiconductor | 1Kbit | 400 kHz | Not specified | 1.8V ~ 5.5V | -40°C ~ 85°C | 8-SOP (4.40mm) | Cut Tape & Digi-Reel |
| BR24T01F-WE2 | Rohm Semiconductor | 1Kbit | 400 kHz | Not specified | 1.6V ~ 5.5V | -40°C ~ 85°C | 8-SOP (4.40mm) | Tape & Reel |
| M24C01-RMN6TP | STMicroelectronics | 1Kbit | 400 kHz | 900 ns | 1.8V ~ 5.5V | -40°C ~ 85°C | 8-SOIC (3.90mm) | Cut Tape & Digi-Reel |
Engineering Selection Recommendations
Direct Pin-Compatible Replacements (Identical Package 8-SOIC 3.90mm):
24LC01BT-E/SN from Microchip Technology maintains identical package geometry and electrical interface with the 24LC014T-E/SN. Both devices operate at 400 kHz I2C frequency with 5 ms write cycle time and support the full 2.5V to 5.5V supply range. The primary difference is access time specification (4.6 µs versus 900 ns), which does not affect functional compatibility in standard I2C applications. This part is verified for DiGi-Electronics programming and available in Cut Tape & Digi-Reel packaging format.
M24C01-RMN6TP from STMicroelectronics provides identical 8-SOIC package geometry with matching 400 kHz clock frequency and 900 ns access time. The supply voltage range is 1.8V to 5.5V, which encompasses the original specification. Operating temperature range is -40°C to 85°C, which is narrower than the original -40°C to 125°C specification. This part is verified for DiGi-Electronics programming and available in Cut Tape & Digi-Reel format with 1807 units in stock.
Functional Equivalents with Enhanced Performance (8-SOP 4.40mm Package):
Rohm Semiconductor BR24 series parts (BR24A01AF-WLBH2, BR24A01AF-WME2, BR24G01F-3GTE2, BR24L01AF-WE2, BR24T01F-WE2) provide 1Kbit I2C EEPROM functionality in 8-SOP packaging with 0.173" width. These devices maintain 400 kHz I2C operation and 5 ms write cycle time. Package footprint differences require PCB layout modification. BR24A01AF-WME2 includes AEC-Q100 automotive qualification. BR24L01AF-WE2 offers the highest inventory availability (28,200 units) with verified DiGi-Electronics programming support.
Higher Performance Alternative:
AT24C01D-SSHM-T from Microchip Technology operates at 1 MHz I2C frequency with 4.5 µs access time, providing enhanced performance for applications requiring faster data access. Supply voltage range is 1.7V to 3.6V, which is narrower than the original specification and incompatible with 5V-only systems. Operating temperature is -40°C to 85°C. This part is verified for DiGi-Electronics programming with 11,150 units available in Cut Tape & Digi-Reel format.
All substitute parts maintain RoHS3 compliance and MSL 1 or MSL 3 ratings suitable for standard manufacturing processes.
Frequently Asked Questions (FAQ)
Q: Can I use BR24 series parts as direct replacements for 24LC014T-E/SN?
A: BR24 series parts are functionally equivalent but use 8-SOP packaging (4.40mm width) instead of 8-SOIC (3.90mm width). While pin count and I2C interface are identical, the different package footprint requires PCB layout modification. Electrical specifications are compatible for standard I2C applications.
Q: What is the difference between 24LC01BT-E/SN and 24LC014T-E/SN?
A: Both parts are 1Kbit I2C EEPROMs with 400 kHz operation and identical package geometry. The 24LC01BT-E/SN has 4.6 µs access time compared to 900 ns for the 24LC014T-E/SN. This difference does not affect functional compatibility in I2C bus applications. The 24LC01BT-E/SN is available in Cut Tape & Digi-Reel packaging.
Q: Is AT24C01D-SSHM-T compatible with 5V systems?
A: No. AT24C01D-SSHM-T operates at 1.7V to 3.6V supply voltage, which is incompatible with 5V-only systems. Use this part only in 3.3V or lower voltage applications. For 5V compatibility, select 24LC01BT-E/SN, M24C01-RMN6TP, or BR24 series alternatives.
Q: Which substitute part has the highest inventory availability?
A: BR24L01AF-WE2 from Rohm Semiconductor has 28,200 units in stock, the highest availability among all listed substitutes. This part operates at 400 kHz with 1.8V to 5.5V supply range and is verified for DiGi-Electronics programming.
Q: Can I use parts with different operating temperature ranges?
A: Substitution is acceptable if the substitute part's operating temperature range meets or exceeds your application requirements. The original 24LC014T-E/SN supports -40°C to 125°C. Substitutes with -40°C to 85°C range are suitable for applications not requiring the extended upper temperature specification.
Q: What is the significance of MSL rating differences?
A: MSL 1 (Unlimited) indicates no moisture sensitivity restrictions for storage and handling. MSL 3 (168 Hours) requires controlled humidity storage and has a 168-hour floor life after packaging opening. Both ratings are acceptable for standard manufacturing processes. MSL 1 parts offer greater handling flexibility.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All listed substitute parts maintain RoHS3 compliance, matching the environmental compliance status of the original 24LC014T-E/SN.
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