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Microchip Technology 24AA025T-I/MNY
- Part No.:
- 24AA025T-I/MNY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
24AA025T-I/MNY.pdf
- Description:
- IC EEPROM 2KBIT I2C 400KHZ 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,979
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Product details
Overview
24AA025T-I/MNY from Microchip Technology Inc. is a 2 Kbit I²C-compatible serial EEPROM organized as 256 × 8-bit memory, operating from 1.7V to 5.5V with industrial temperature range (–40°C to +85°C). It features 16-byte page write buffer, 400 kHz max clock speed, and Schmitt-trigger inputs for noise immunity-used in embedded system configuration storage, sensor calibration data retention, and secure device identity storage.
For engineers reviewing the 24AA025T-I/MNY datasheet, 24AA025T-I/MNY pinout, 24AA025T-I/MNY application, or 24AA025T-I/MNY equivalent, key selection considerations include its 6-lead SOT-23 package, absence of hardware write-protect (WP) pin, 1 μA standby current, and compatibility with multi-device I²C bus topologies up to eight devices (four in SOT-23).
Technical Context
The 24AA025T-I/MNY implements a standard two-wire I²C slave interface with fixed 7-bit address prefix '1010' and three programmable chip-select bits (A0, A1, A2), enabling up to four devices on the same bus in SOT-23 packaging due to missing A2 connection. Its internal address pointer auto-increments during sequential reads and supports current-address, random, and sequential read modes.
Write operations are self-timed with ≤5 ms byte/page cycle time; acknowledge polling is supported to detect completion. The device uses low-power CMOS technology with Schmitt-trigger inputs and output slope control to suppress ground bounce and tolerate bus noise-critical for operation in electrically noisy industrial environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2 Kbit (256 × 8-bit), sufficient for small firmware parameters or MAC address storage |
| Supply Voltage | 1.7V–5.5V - enables direct interfacing with 1.8V, 3.3V, and 5V microcontrollers without level shifting |
| Interface | I²C-compatible 2-wire serial - reduces PCB routing complexity vs. SPI or parallel interfaces |
| Max Clock Frequency | 400 kHz (≥1.8V) - supports high-speed configuration loading in real-time systems |
| Page Write Buffer | 16 bytes - minimizes I²C transaction count when updating multiple adjacent settings |
| Endurance | 1 million erase/write cycles - ensures long-term reliability in field-updatable applications |
| Data Retention | 200 years at 25°C - guarantees persistent storage across product lifecycle without refresh |
Pinout & Package
24AA025T-I/MNY is housed in a Pb-free, RoHS-compliant 6-lead SOT-23 package (3.0 mm × 1.7 mm × 1.1 mm), optimized for space-constrained PCB layouts in portable and IoT edge devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SCL) | Serial Clock Input | Synchronizes all I²C transfers; requires external pull-up resistor (2 kΩ typical for 400 kHz) |
| 2 (VSS) | Ground Reference | Return path for all internal logic and I/O; must be low-impedance to minimize noise coupling |
| 3 (SDA) | Serial Data I/O | Bidirectional open-drain line; shared among all I²C slaves; requires pull-up resistor |
| 4 (A1) | Address Input | Second chip-select bit; sets device address (1010xx0) - tied to VSS or VCC to configure bus position |
| 5 (A0) | Address Input | First chip-select bit; completes 3-bit address (1010x00); enables up to four SOT-23 devices per bus |
| 6 (VCC) | Power Supply | 1.7V–5.5V input; includes internal voltage threshold detector disabling writes below ~1.5V |
Key Features
| Feature | Design Value |
|---|---|
| Low-Power Operation | 1 μA typical standby current enables battery-powered operation for >10 years on coin cell |
| Noise Immunity | Schmitt-trigger inputs + 50 ns input filter suppress EMI/RFI - eliminates need for external RC filtering |
| Page Write Efficiency | 16-byte buffer reduces I²C overhead by 87% vs. byte-write for full-page updates |
| Robust Bus Timing | Guaranteed 400 kHz operation down to 1.7V - avoids clock stretching in low-voltage systems |
| Reliability Assurance | ESD protection >4 kV HBM ensures survival during handling and board assembly |
Applications
| Industrial Sensor Node | Medical Wearable Device |
|---|---|
Use Scenario: Storing calibrated offset/gain coefficients and last-known sensor state after power loss. IC Role / Device Role / Timing Role: Nonvolatile configuration register accessed via I²C during boot and runtime calibration. Use Value: Eliminates factory recalibration after battery replacement; maintains traceability of sensor history across 200-year data retention window. |
Use Scenario: Securing unique device identifiers (e.g., BLE MAC address) and patient-specific therapy parameters. IC Role / Device Role / Timing Role: Tamper-resistant identity store accessed only during secure boot handshake. Use Value: Prevents unauthorized cloning; leverages 1M-cycle endurance for frequent parameter updates during clinical reprogramming. |
| Smart Home Hub | Automotive Body Control Module |
Use Scenario: Holding network credentials (Wi-Fi SSID/password), user preferences, and firmware update metadata. IC Role / Device Role / Timing Role: Persistent settings manager interfaced to host MCU over shared I²C bus with other peripherals. Use Value: Enables zero-touch setup after power cycle; 4-device SOT-23 bus scalability simplifies BOM consolidation. |
Use Scenario: Storing seat/mirror position presets, lighting profiles, and diagnostic fault logs in sub-85°C zones. IC Role / Device Role / Timing Role: Industrial-grade EEPROM co-located with CAN/LIN transceivers on body controller PCB. Use Value: Meets –40°C to +85°C ambient requirement without derating; 1.7V operation supports cold-cranking scenarios. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24LC025-I/MNY | Same 2 Kbit capacity and SOT-23 package, but rated for automotive temp (–40°C to +125°C) and minimum 2.5V VCC | Required where extended temperature or higher VCC stability is mandated (e.g., under-hood modules) | Select 24LC025-I/MNY only if automotive qualification or 2.5V+ operation is required; not drop-in for 1.7V systems |
| AT24C02D-SSHM-T | 2 Kbit I²C EEPROM in SOT-23; supports 1.7V–5.5V, but lacks factory-programmable MAC address option and has 100 kHz max clock at 1.7V | Used where Microchip ecosystem independence or alternate supply chain is prioritized | Choose AT24C02D-SSHM-T when cross-supplier sourcing is needed; verify timing compliance at target VCC |
Compared with 24AA025T-I/MNY, the 24LC025-I/MNY extends temperature range at the cost of 1.7V operation, while the AT24C02D-SSHM-T offers vendor diversification but sacrifices guaranteed 400 kHz performance below 1.8V - making 24AA025T-I/MNY optimal for cost-sensitive, wide-VCC industrial designs.
Availability
24AA025T-I/MNY is available at Aetrix Electronics and suitable for industrial sensor nodes, medical wearables, smart home hubs, and automotive body control modules requiring stable component supply across multi-year production cycles.
Supply support for 24AA025T-I/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 infrastructure.
The 24AA025T-I/MNY belongs to Microchip's legacy 24XX025 serial EEPROM family, designed specifically for low-voltage, space-constrained embedded systems needing reliable nonvolatile storage without hardware write-protection overhead.
FAQ
What is the maximum I²C clock frequency supported by the 24AA025T-I/MNY?
The 24AA025T-I/MNY supports up to 400 kHz I²C clock frequency when VCC ≥ 1.8V. At 1.7V ≤ VCC < 1.8V, maximum clock rate drops to 100 kHz per DS21210N specification. This dual-speed capability ensures interoperability across diverse host MCU voltage domains while maintaining timing margin.
Does the 24AA025T-I/MNY have a hardware write-protect (WP) pin?
No, the 24AA025T-I/MNY does not include a WP pin. Unlike the 24AA024 variant, the WP terminal is not internally connected on this part - confirmed in the datasheet note: "WP pin is not internally connected on the 24XX025." Write protection must be implemented in software or via external logic.
How many 24AA025T-I/MNY devices can share the same I²C bus?
Up to four 24AA025T-I/MNY devices can operate on a single I²C bus. This limitation arises because the SOT-23 package omits the A2 address pin, leaving only A0 and A1 to configure the 3-bit device address - yielding four unique combinations (00, 01, 10, 11).
What is the page write size and maximum write time for the 24AA025T-I/MNY?
The 24AA025T-I/MNY features a 16-byte page write buffer. A full page write completes in ≤5 ms, as specified in the datasheet's TWC parameter. This self-timed cycle allows the host MCU to poll for completion using ACK polling rather than fixed delays.
Is the 24AA025T-I/MNY compatible with 1.8V I/O systems?
Yes, the 24AA025T-I/MNY is fully compatible with 1.8V I/O systems. Its 1.7V–5.5V supply range and I²C input thresholds (VIH = 0.7×VCC, VIL = 0.3×VCC) ensure reliable communication with 1.8V microcontrollers without level shifters - validated across industrial temperature range.
24AA025T-I/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:
- 1.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (2x3)
24AA025T-I/MNY FAQ
1.How can I place an order for 24AA025T-I/MNY through Aetrix?
Please submit a Request for Quotation (RFQ) for 24AA025T-I/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 24AA025T-I/MNY reliable?
The price and inventory of 24AA025T-I/MNY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24AA025T-I/MNY is usually 5 days.
3.What payment methods are accepted for 24AA025T-I/MNY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24AA025T-I/MNY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24AA025T-I/MNY?
24AA025T-I/MNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24AA025T-I/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 24AA025T-I/MNY?
For technical support, including 24AA025T-I/MNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24AA025T-I/MNY requirements.
6.How does Aetrix verify that 24AA025T-I/MNY is sourced from the original manufacturer or authorized distributors?
All 24AA025T-I/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 24AA025T-I/MNY meets industry standards.
7.What is the process for return or replacement of 24AA025T-I/MNY?
All 24AA025T-I/MNY units undergo pre-shipment inspection (PSI). If there is an issue with 24AA025T-I/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 24AA025T-I/MNY part is unused and in its original packaging.
Return procedure for 24AA025T-I/MNY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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