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Microchip Technology 24AA02T-I/MNY
- Part No.:
- 24AA02T-I/MNY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
24AA02T-I/MNY.pdf
- Description:
- IC EEPROM 2KBIT I2C 400KHZ 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,162
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Product details
Overview
24AA02T-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 400 kHz max clock frequency, 5 ms max page write time, and industrial temperature range (–40°C to +85°C). It features hardware write-protection via the WP pin, Schmitt-trigger inputs for noise immunity, and 1 µA standby current - used in embedded system configuration storage, MAC address retention, and calibration data backup.
For engineers reviewing the 24AA02T-I/MNY datasheet, 24AA02T-I/MNY pinout, 24AA02T-I/MNY application, or 24AA02T-I/MNY equivalent, key selection considerations include its 1.7V low-voltage operation, 8-byte page buffer, AEC-Q100 qualification, RoHS compliance, and compatibility with standard I²C bus timing at 400 kHz under industrial conditions.
Technical Context
The 24AA02T-I/MNY implements a two-wire I²C interface with fixed 7-bit device address (1010xxx) and R/W bit control, supporting byte and page write modes. Its internal Address Pointer auto-increments during sequential reads and enables current-address and random-address access patterns without external address latching.
It integrates Schmitt-trigger inputs on SDA and SCL for robust noise suppression, slope-controlled outputs to minimize ground bounce, and an internal HV generator for EEPROM programming. Write protection is implemented via a dedicated WP pin tied to VCC (enabled) or VSS (disabled), independent of I²C commands.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2 Kbit (256 × 8-bit), sufficient for storing small configuration sets or unique identifiers like Ethernet MAC addresses |
| Supply Voltage Range | 1.7V–5.5V - enables direct interfacing with 1.8V, 3.3V, and 5V microcontrollers without level-shifting |
| Max Clock Frequency | 400 kHz at VCC ≥ 2.5V; 100 kHz at 1.7V ≤ VCC < 2.5V - ensures reliable timing across wide voltage range |
| Page Write Buffer | 8 bytes - reduces I²C transaction count for multi-byte writes and improves firmware efficiency |
| Write Endurance | 1,000,000 cycles - supports frequent recalibration or logging in industrial monitoring systems |
| Data Retention | 200 years at +85°C - guarantees long-term integrity of factory-programmed or field-updated parameters |
| Standby Current | 1 µA maximum (I-temp.) - critical for battery-powered IoT nodes requiring ultra-low quiescent power |
Pinout & Package
24AA02T-I/MNY uses an 8-lead UDFN (Wettable Flanks) package, 2 mm × 3 mm body, with exposed pad connected to VSS or left floating. Pin 1 is marked by chamfered corner per JEDEC MO-229.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSS | Ground reference | Return path for all internal circuitry; must be low-impedance connection to system GND plane |
| SDA | Serial Data I/O | Open-drain bidirectional bus line requiring external pull-up (2 kΩ typical for 400 kHz) |
| SCL | Serial Clock input | Asynchronous master-generated clock; Schmitt-trigger input rejects noise on rising/falling edges |
| WP | Hardware write-protect | Logic-high disables all write operations; no software override - ensures fail-safe configuration lock |
| VCC | Power supply | Supplies core logic and EEPROM array; decoupling capacitor (100 nF) required within 5 mm |
| A0–A2 | No-connect (NC) | Internally unconnected; may be left floating or tied to VSS/VCC with no functional impact |
Key Features
| Feature | Design Value |
|---|---|
| Low-voltage operation down to 1.7V | Enables direct integration into 1.8V FPGA/ASIC power domains without voltage translation |
| Factory-programmable memory | Supports pre-loading of immutable identifiers (e.g., IEEE OUI + unique MAC) during manufacturing |
| ESD protection >4 kV | Meets IEC 61000-4-2 Level 3, reducing need for external TVS diodes in board-level ESD design |
| I²C bus timing compliance | Fully compatible with standard-mode (100 kHz) and fast-mode (400 kHz) I²C specifications |
| Automotive qualification | AEC-Q100 Grade 2 qualified - validated for under-hood and infotainment applications |
Applications
| Industrial Sensor Node | Automotive Telematics Module |
|---|---|
Use Scenario: Storing calibrated sensor offsets and linearization coefficients in a wireless temperature/humidity node. IC Role / Device Role / Timing Role: Nonvolatile configuration storage accessed at boot and after field recalibration via I²C. Use Value: Eliminates need for external calibration EEPROM; 1 µA standby current extends battery life beyond 10 years. |
Use Scenario: Holding vehicle-specific VIN, IMEI, and secure boot keys in a cellular-connected telematics control unit. IC Role / Device Role / Timing Role: Tamper-resistant identity storage with hardware write-protection enabled during production. Use Value: WP pin prevents accidental overwrites during firmware updates; AEC-Q100 qualification ensures reliability at 125°C junction temp. |
| Medical Infusion Pump | Smart Energy Meter |
Use Scenario: Retaining dose history, alarm thresholds, and user preferences across power cycles in Class II medical equipment. IC Role / Device Role / Timing Role: Fail-safe parameter storage with 200-year data retention guaranteeing lifetime device integrity. Use Value: Meets IEC 62304 software safety requirements for permanent data preservation without refresh cycles. |
Use Scenario: Storing tariff tables, metering constants, and tamper-event logs in ANSI C12.22-compliant smart meters. IC Role / Device Role / Timing Role: High-endurance (1M cycle) nonvolatile memory for daily log entries and firmware patch metadata. Use Value: 8-byte page writes reduce I²C bus occupancy during time-critical metering intervals; RoHS compliance meets global regulatory mandates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24LC02B-I/MNY | Requires minimum 2.5V VCC; no 1.7V operation; identical pinout and I²C protocol | Not suitable for 1.8V systems; otherwise interchangeable in 3.3V/5V designs | Select only if system VCC never drops below 2.5V and cost sensitivity outweighs low-voltage flexibility |
| AT24C02D-SSHM-T | Same 2-Kbit capacity and I²C interface; 1.7V–5.5V range; 1 MHz max clock; different pinout (SOIC-8) | Higher speed but requires PCB layout change; lacks AEC-Q100 qualification | Choose when 1 MHz throughput is needed and automotive qualification is not required |
Compared with 24LC02B-I/MNY and AT24C02D-SSHM-T, the 24AA02T-I/MNY uniquely combines 1.7V operation, AEC-Q100 qualification, and UDFN wettable flanks packaging - making it optimal for space-constrained, automotive-grade, or ultra-low-power designs where pin compatibility and qualification are mandatory.
Availability
24AA02T-I/MNY is available at Aetrix Electronics and suitable for industrial sensor nodes, automotive telematics modules, and medical infusion pumps requiring stable component supply, long-lifecycle support, and guaranteed traceability.
Supply support for 24AA02T-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 microcontroller, analog, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 24AA02 series belongs to Microchip's serial EEPROM product line, designed specifically for reliable, low-power, and automotive-qualified nonvolatile data storage in resource-constrained embedded systems.
FAQ
What is the function of the WP pin on the 24AA02T-I/MNY?
The WP (Write-Protect) pin on the 24AA02T-I/MNY is a hardware-level enable/disable control for all write operations. When tied to VCC, the entire 256-byte memory array is locked against writes while reads remain fully functional. This provides deterministic, glitch-immune protection independent of I²C command execution - a critical feature for safeguarding factory-programmed MAC addresses or calibration data in the 24AA02T-I/MNY.
Does the 24AA02T-I/MNY support 1 MHz I²C communication?
No, the 24AA02T-I/MNY does not support 1 MHz I²C communication. Its maximum clock frequency is 400 kHz at VCC ≥ 2.5V and 100 kHz at 1.7V ≤ VCC < 2.5V. The 24FC02 variant in the same family supports 1 MHz, but the 24AA02T-I/MNY is explicitly rated for fast-mode (400 kHz) only - confirmed in the Device Selection Table and AC Characteristics section of DS20001709N.
Are pins A0, A1, and A2 functional on the 24AA02T-I/MNY?
No, pins A0, A1, and A2 on the 24AA02T-I/MNY are not internally connected and serve no functional purpose. As stated in Section 2.1 of DS20001709N, they may be left floating or tied to VSS or VCC without affecting operation. This distinguishes the 24AA02T-I/MNY from higher-density EEPROMs (e.g., 24AA04/24AA08) where these pins configure device addressing.
What package type is used by the 24AA02T-I/MNY?
The 24AA02T-I/MNY uses an 8-lead UDFN (Ultra Thin Dual Flat No-lead) package with wettable flanks, designated "MNY" in Microchip's packaging code. It measures 2 mm × 3 mm with 0.5 mm pitch and an exposed thermal pad - optimized for automated optical inspection (AOI) and solder joint reliability in high-volume SMT assembly.
Is the 24AA02T-I/MNY qualified for automotive applications?
Yes, the 24AA02T-I/MNY is AEC-Q100 qualified (Grade 2, –40°C to +105°C case temperature), as explicitly stated in the Features section of DS20001709N. Its industrial temperature grade (I: –40°C to +85°C ambient) and qualification make it suitable for automotive infotainment, body control modules, and telematics units where extended temperature operation and stress-tested reliability are required.
24AA02T-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)
24AA02T-I/MNY FAQ
1.How can I place an order for 24AA02T-I/MNY through Aetrix?
Please submit a Request for Quotation (RFQ) for 24AA02T-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 24AA02T-I/MNY reliable?
The price and inventory of 24AA02T-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 24AA02T-I/MNY is usually 5 days.
3.What payment methods are accepted for 24AA02T-I/MNY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24AA02T-I/MNY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24AA02T-I/MNY?
24AA02T-I/MNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24AA02T-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 24AA02T-I/MNY?
For technical support, including 24AA02T-I/MNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24AA02T-I/MNY requirements.
6.How does Aetrix verify that 24AA02T-I/MNY is sourced from the original manufacturer or authorized distributors?
All 24AA02T-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 24AA02T-I/MNY meets industry standards.
7.What is the process for return or replacement of 24AA02T-I/MNY?
All 24AA02T-I/MNY units undergo pre-shipment inspection (PSI). If there is an issue with 24AA02T-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 24AA02T-I/MNY part is unused and in its original packaging.
Return procedure for 24AA02T-I/MNY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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