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Microchip Technology 24LC025T-E/MNY
- Part No.:
- 24LC025T-E/MNY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
24LC025T-E/MNY.pdf
- Description:
- IC EEPROM 2KBIT I2C 400KHZ 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,152
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Product details
Overview
24LC025T-E/MNY from Microchip Technology Inc. is a 2 Kbit I²C-compatible serial EEPROM organized as 256 × 8-bit memory, operating from 2.5V to 5.5V with industrial/automotive temperature range (–40°C to +125°C), 400 kHz max clock, and 16-byte page write buffer. It serves as nonvolatile configuration storage in embedded controllers, sensor nodes, and power management ICs.
For engineers reviewing the 24LC025T-E/MNY datasheet, 24LC025T-E/MNY pinout, 24LC025T-E/MNY application, or 24LC025T-E/MNY equivalent, key selection considerations include its SOT-23-6 package, absence of hardware write-protect (WP not connected), automotive-grade reliability, and compatibility with standard I²C bus timing at 400 kHz.
Technical Context
The 24LC025T-E/MNY implements a two-wire I²C interface with Schmitt-trigger inputs and noise-filtered SDA/SCL pins, enabling robust operation on electrically noisy PCBs. Its internal address pointer auto-increments during sequential reads and supports current-address, random, and sequential read modes.
It uses an internal high-voltage generator for EEPROM programming and features self-timed erase/write cycles with 5 ms maximum page write time. The device lacks a WP pin-hardware write protection is not implemented-and supports up to four devices on one bus via A0/A1 address pins (A2 unconnected in SOT-23).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2 Kbit (256 × 8-bit), sufficient for firmware identifiers, calibration data, or device configuration registers |
| VCC Range | 2.5V to 5.5V - compatible with 3.3V and 5V logic domains without level shifting |
| Max Clock Frequency | 400 kHz - enables fast configuration loading while maintaining I²C protocol compliance |
| Page Write Buffer | 16 bytes - reduces write transaction count and improves efficiency over byte-write-only EEPROMs |
| Endurance | 1 million erase/write cycles - supports frequent field updates in telemetry or logging applications |
| Data Retention | 200 years at +25°C - ensures long-term integrity of stored calibration or security keys |
| Temp Range | –40°C to +125°C (Automotive E-grade) - qualified for under-hood and industrial control environments |
Pinout & Package
24LC025T-E/MNY is housed in a Pb-free, RoHS-compliant 6-lead SOT-23 package (3.0 mm × 1.7 mm × 1.3 mm). Pin 1 is marked by laser; pin 3 is SDA, pin 1 is SCL, and pin 6 is VCC. A2 is not internally connected; WP is absent (not bonded).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | SCL | Serial clock input - synchronizes all I²C transactions; requires external pull-up resistor |
| 2 | VSS | Ground reference - must be low-impedance connection to system common ground |
| 3 | SDA | Bidirectional open-drain data line - shared across I²C bus; requires pull-up resistor (2 kΩ typical for 400 kHz) |
| 4 | A0 | Device address bit A0 - sets LSB of 7-bit slave address (1010A1A0); tied to VSS or VCC for multi-device addressing |
| 5 | A1 | Device address bit A1 - sets middle bit of slave address; enables up to four 24LC025T-E/MNY devices on one bus |
| 6 | VCC | Power supply input - must be decoupled with 0.1 μF ceramic capacitor near the pin |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Eliminates false triggering from bus noise; specified hysteresis ≥0.05×VCC improves immunity to EMI |
| Output slope control | Reduces ground bounce and EMI during SDA transitions, critical for mixed-signal PCB layouts |
| 16-byte page write buffer | Enables burst writes without repeated start conditions, cutting I²C overhead by up to 85% vs. byte writes |
| Auto-incrementing address pointer | Supports seamless sequential reads across full 256-byte array with automatic wraparound (0xFF → 0x00) |
| ACK polling support | Allows host MCU to detect write completion without fixed delays, optimizing bus utilization in real-time systems |
Applications
| Industrial Sensor Node | Automotive Body Control Module |
|---|---|
|
Use Scenario: Storing calibrated offset/gain coefficients and unique sensor ID in a wireless temperature/humidity node. IC Role / Device Role / Timing Role: Nonvolatile configuration storage accessed at power-up and during field recalibration via I²C. Use Value: Enables plug-and-play sensor replacement with retained calibration; 200-year retention prevents drift-related failures over product lifetime. |
Use Scenario: Holding seat position memory, mirror angle presets, and lighting configuration in a BCM. IC Role / Device Role / Timing Role: Persistent parameter storage interfaced by MCU over I²C during ignition-on initialization. Use Value: Automotive-grade temperature range (–40°C to +125°C) ensures reliable operation in extreme cabin environments. |
| Smart Power Supply Unit | Medical Diagnostic Handheld |
|
Use Scenario: Saving user-defined voltage/current limits, fault log history, and factory trim settings in a programmable DC supply. IC Role / Device Role / Timing Role: Configuration EEPROM accessed during boot and runtime via I²C master controller. Use Value: 1M endurance supports frequent field updates during service calibration without premature wear-out. |
Use Scenario: Storing regulatory-critical calibration constants, device serial number, and usage counters in portable ultrasound equipment. IC Role / Device Role / Timing Role: Secure, tamper-resistant nonvolatile memory for FDA-required traceability data. Use Value: RoHS/Pb-free packaging and 2.5V–5.5V operation simplify integration into battery-powered, low-noise analog front-ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA025-I/MNY | Same 2 Kbit capacity and SOT-23-6 package, but rated for Industrial (–40°C to +85°C) only; operates down to 1.7V. | Not qualified for automotive under-hood use; suitable for cost-sensitive consumer or industrial control where extended temp is unnecessary. | Select when lower VCC (1.7V) support is required and automotive qualification is not mandated. |
| AT24C02D-SSHM-T | 2 Kbit I²C EEPROM in SOIC-8; includes write-protect pin and 1 MHz clock option; same 2.5V–5.5V range and –40°C to +125°C rating. | Requires PCB layout change (SOIC-8 vs. SOT-23-6); adds hardware WP control but increases footprint. | Choose when board space allows SOIC-8 and hardware write-protection is needed for secure configuration locking. |
Compared with 24LC025T-E/MNY, the 24AA025-I/MNY offers wider voltage flexibility but lacks automotive qualification, while the AT24C02D-SSHM-T provides hardware write protection and higher speed but demands larger PCB area and different pinout.
Availability
24LC025T-E/MNY is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor nodes, and medical handheld devices requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 24LC025T-E/MNY includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology Inc. is a leading provider of microcontrollers, analog components, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 24LC025T-E/MNY belongs to Microchip's legacy 24LCxx serial EEPROM family, designed specifically for robust, low-power nonvolatile storage in automotive, industrial, and medical systems demanding high reliability and long data retention.
FAQ
What is the function of the WP pin on the 24LC025T-E/MNY?
The 24LC025T-E/MNY does not have a functional WP (Write-Protect) pin. As confirmed in the datasheet, the WP pin is not internally connected on any 24XX025 variant, including the 24LC025T-E/MNY. Hardware write protection is therefore unavailable; software-level access control must be implemented externally if required.
Does the 24LC025T-E/MNY support 100 kHz I²C operation?
Yes, the 24LC025T-E/MNY supports 100 kHz I²C operation, but only when VCC < 2.5V - a condition outside its specified operating range. Within its valid 2.5V–5.5V supply range, it is rated for up to 400 kHz. At 2.5V and above, 100 kHz operation is permitted but not the maximum capability.
How many 24LC025T-E/MNY devices can share one I²C bus?
Up to four 24LC025T-E/MNY devices can share a single I²C bus. This is because the SOT-23 package lacks the A2 pin, limiting address combinations to A1/A0 (2 bits), yielding four unique 7-bit slave addresses (1010000, 1010001, 1010010, 1010011).
What is the maximum write cycle time for the 24LC025T-E/MNY?
The maximum write cycle time for the 24LC025T-E/MNY is 5 ms for both byte and page writes, as specified in the datasheet. This value is guaranteed across the full temperature and voltage range and must be observed before initiating subsequent I²C transactions to avoid bus errors.
Is the 24LC025T-E/MNY pin-compatible with the 24LC024T-E/MNY?
No, the 24LC025T-E/MNY is not pin-compatible with the 24LC024T-E/MNY. While both use SOT-23-6, the 24LC024T-E/MNY includes a functional WP pin (pin 7 in SOIC, but repurposed in SOT-23), whereas the 24LC025T-E/MNY leaves that pin unconnected. Board-level substitution requires validation of pin mapping and firmware handling of write protection.
24LC025T-E/MNY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 2Kbit
- Memory Organization:
- 256 x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 400 kHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 900 ns
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (2x3)
24LC025T-E/MNY FAQ
1.How can I place an order for 24LC025T-E/MNY through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC025T-E/MNY on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 24LC025T-E/MNY reliable?
The price and inventory of 24LC025T-E/MNY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24LC025T-E/MNY is usually 5 days.
3.What payment methods are accepted for 24LC025T-E/MNY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC025T-E/MNY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC025T-E/MNY?
24LC025T-E/MNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC025T-E/MNY order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 24LC025T-E/MNY?
For technical support, including 24LC025T-E/MNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC025T-E/MNY requirements.
6.How does Aetrix verify that 24LC025T-E/MNY is sourced from the original manufacturer or authorized distributors?
All 24LC025T-E/MNY products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 24LC025T-E/MNY meets industry standards.
7.What is the process for return or replacement of 24LC025T-E/MNY?
All 24LC025T-E/MNY units undergo pre-shipment inspection (PSI). If there is an issue with 24LC025T-E/MNY, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 24LC025T-E/MNY part is unused and in its original packaging.
Return procedure for 24LC025T-E/MNY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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