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Microchip Technology 24FC02T-I/MUY
- Part No.:
- 24FC02T-I/MUY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
24FC02T-I/MUY.pdf
- Description:
- IC EEPROM 2KBIT I2C 1MHZ 8UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,210
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Product details
Overview
24FC02T-I/MUY from Microchip Technology Inc. is a 2-Kbit I²C-compatible serial EEPROM organized as 256 × 8-bit memory with hardware write-protection, 1 MHz clock support (down to 1.7V), 8-byte page write buffer, and industrial temperature range (–40°C to +85°C). It enables nonvolatile parameter storage in space-constrained embedded systems such as smart sensors and IoT edge nodes.
For engineers reviewing the 24FC02T-I/MUY datasheet, 24FC02T-I/MUY pinout, 24FC02T-I/MUY application, or 24FC02T-I/MUY equivalent, key selection criteria include its 1.7V minimum operating voltage, 1 µA standby current, Schmitt-trigger I²C inputs for noise immunity, and MUY-package wettable flanks for automated optical inspection (AOI) in high-reliability PCB assembly.
Technical Context
The 24FC02T-I/MUY implements a two-wire I²C interface compliant with standard-mode (100 kHz), fast-mode (400 kHz), and fast-mode plus (1 MHz) timing specifications. Its internal architecture includes an 8-byte page latch, EEPROM array with >1 million erase/write cycles, and on-chip HV generator for byte/page programming.
It supports three read modes-current address, random, and sequential-and uses acknowledge polling to detect write completion. The WP pin provides hardware-level write protection across the full 256-byte memory array without software overhead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 2 Kbit (256 × 8-bit), sufficient for device calibration data, MAC addresses, or firmware configuration flags |
| Interface | I²C-compatible two-wire bus with 1 MHz max clock at 1.7–5.5V, enabling high-speed host communication in low-power systems |
| Write Cycle Time | ≤5 ms per byte or page, minimizing bus occupancy during nonvolatile updates |
| Supply Voltage | 1.7V to 5.5V - supports direct connection to Li-ion battery rails or 1.8V/3.3V logic domains without level shifters |
| Standby Current | 1 µA maximum (I-temp.), critical for battery-powered devices requiring multi-year shelf life |
| Data Retention | >200 years at 85°C - ensures long-term reliability in automotive and industrial deployments |
| Endurance | 1,000,000 erase/write cycles - accommodates frequent field-updatable parameters (e.g., metering logs) |
Pinout & Package
24FC02T-I/MUY is housed in an 8-lead UDFN package with wettable flanks (MUY), measuring 2 mm × 3 mm × 0.55 mm, optimized for AOI and reflow-soldered high-density PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Address Input | No internal connection; may be left floating or tied to VSS/VCC - no impact on device addressing |
| A1 | Address Input | No internal connection; unused in 24FC02 family - eliminates external pull-up/down requirements |
| A2 | Address Input | No internal connection; simplifies board layout by removing address pin routing constraints |
| VSS | Ground | Reference node for all I/O and internal circuitry; must be low-impedance for stable I²C signaling |
| SDA | Serial Data I/O | Open-drain bidirectional line requiring external pull-up; transmits/receives addresses, commands, and data |
| SCL | Serial Clock Input | Host-generated clock synchronizing all I²C transfers; Schmitt-trigger input suppresses bus noise |
| WP | Write-Protect Input | Hardware lock: tied to VCC disables all writes; tied to VSS enables full read/write access |
| VCC | Power Supply | Single supply input supporting 1.7–5.5V operation - enables direct integration with wide-VDD SoCs |
Key Features
| Feature | Design Value |
|---|---|
| 1 MHz I²C Interface | Enables faster parameter updates than legacy 400 kHz EEPROMs - reduces host CPU wait time in real-time systems |
| 8-Byte Page Write Buffer | Allows burst writes of up to 8 contiguous bytes per Stop condition, improving throughput over single-byte writes |
| Schmitt Trigger Inputs | Provides hysteresis (≥0.05×VCC) on SDA/SCL to reject EMI-induced glitches on noisy industrial buses |
| Wettable Flank UDFN (MUY) | Exposes solderable side terminals for automated optical inspection of solder joint quality - critical for automotive AEC-Q100 compliance |
| Hardware Write-Protection | Prevents accidental or malicious firmware corruption via dedicated WP pin - no software driver required |
Applications
| Smart Sensor Calibration | Industrial PLC Configuration |
|---|---|
Use Scenario: Storing factory-trimmed sensor offset/gain coefficients and temperature compensation tables in MEMS pressure sensors. IC Role / Device Role / Timing Role: Nonvolatile parameter storage IC interfacing directly to MCU's I²C peripheral during power-up initialization. Use Value: Eliminates need for external trimming components and enables field recalibration via host-controlled writes to 24FC02T-I/MUY. | Use Scenario: Holding user-defined I/O mapping, alarm thresholds, and runtime counters in modular programmable logic controllers. IC Role / Device Role / Timing Role: Persistent configuration store accessed over I²C during boot and runtime by ARM-based controller. Use Value: Survives power loss and retains settings across firmware updates - ensures deterministic startup behavior in mission-critical automation. |
| IoT Edge Node Identity | Automotive Telematics Bootloader |
Use Scenario: Securing unique device identifiers (e.g., IEEE EUI-48 MAC address, cryptographic keys) in battery-powered environmental monitors. IC Role / Device Role / Timing Role: Tamper-resistant identity vault with hardware write-protection enabled via WP pin. Use Value: Prevents unauthorized reprogramming of identity data while allowing authenticated reads - meets basic secure boot prerequisites. | Use Scenario: Storing bootloader version, secure boot status flags, and rollback counters in automotive infotainment ECUs. IC Role / Device Role / Timing Role: AEC-Q100 qualified nonvolatile memory used during cold-start sequence prior to main MCU initialization. Use Value: Guarantees integrity of boot-critical metadata across thermal cycling and vibration - validated for –40°C to +85°C operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA02T-I/MUY | Max clock 400 kHz; same 1.7–5.5V range and MUY package; lacks 1 MHz support | Lower bandwidth acceptable in cost-sensitive, low-update-rate applications (e.g., static calibration storage) | Select when system clock budget permits slower I²C and lower cost is prioritized over speed |
| AT24C02D-SSHM-T | 1 MHz I²C, 1.7–5.5V, SOIC-8 package; no wettable flanks; 1 µA standby current | Requires rework for AOI-capable assembly; suitable for through-hole or legacy SMT lines without X-ray/AOI capability | Choose when board assembly process does not require wettable flanks and SOIC-8 footprint is already allocated |
Compared with 24AA02T-I/MUY, the 24FC02T-I/MUY delivers 2.5× higher I²C bandwidth for rapid configuration loading, while AT24C02D-SSHM-T offers identical speed but trades wettable flanks for SOIC-8 compatibility - making 24FC02T-I/MUY optimal for miniaturized, AOI-verified automotive and industrial designs.
Availability
24FC02T-I/MUY is available at Aetrix Electronics and suitable for smart sensor calibration, industrial PLC configuration, and automotive telematics bootloader applications requiring stable component supply, extended temperature operation, and AOI-compatible packaging.
Supply support for 24FC02T-I/MUY 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, FPGA, and memory solutions, serving industrial, automotive, communications, and consumer markets with high-reliability silicon and development tools.
The 24FC02T-I/MUY belongs to Microchip's 24XX02 family of serial EEPROMs, designed specifically for low-voltage, low-power embedded systems needing robust nonvolatile storage with minimal pin count and board area.
FAQ
What is the maximum I²C clock frequency supported by the 24FC02T-I/MUY?
The 24FC02T-I/MUY supports up to 1 MHz I²C clock frequency across its full 1.7V–5.5V supply range, as confirmed in Table 1-2 of DS20001709N. This exceeds the 400 kHz limit of the 24AA02/24LC02B variants and enables faster parameter writes in time-critical applications. At VCC < 2.5V, the 24FC02T-I/MUY maintains 1 MHz operation - unlike the 24AA02, which drops to 100 kHz below 2.5V.
Does the 24FC02T-I/MUY require external pull-up resistors on SDA and SCL lines?
Yes, the 24FC02T-I/MUY requires external pull-up resistors on both SDA and SCL lines because its I²C interface uses open-drain outputs. Typical values are 2 kΩ for 1 MHz operation and 10 kΩ for 100 kHz, as specified in Section 2.2 of DS20001709N. The resistor value must be selected based on bus capacitance and desired rise time to meet AC timing requirements.
How does hardware write-protection work on the 24FC02T-I/MUY?
Hardware write-protection on the 24FC02T-I/MUY is controlled by the WP pin: when tied to VCC, the entire 256-byte memory array is locked against write operations (including byte and page writes), while read operations remain fully functional. When WP is tied to VSS, normal read/write access is enabled. This function is implemented entirely in hardware and requires no firmware intervention.
What is the significance of the "MUY" suffix in 24FC02T-I/MUY?
The "MUY" suffix denotes the 8-lead 2×3 mm UDFN package with wettable flanks, as defined in Microchip's packaging nomenclature. This variant features solderable side terminals that enable automated optical inspection (AOI) of solder joints - a requirement for high-reliability automotive and industrial manufacturing. It is distinct from standard UDFN (e.g., "MNY") and TDFN packages.
Can the 24FC02T-I/MUY be used in automotive applications requiring AEC-Q100 qualification?
Yes, the 24FC02T-I/MUY is explicitly AEC-Q100 qualified for automotive use, as stated in the Features section of DS20001709N. Its industrial temperature grade (I: –40°C to +85°C) and wettable flank MUY package align with automotive PCB assembly and reliability requirements, including thermal cycling and vibration resistance.
24FC02T-I/MUY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-UFDFN 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:
- 1 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 450 ns
- Voltage - Supply:
- 1.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-UDFN (2x3)
24FC02T-I/MUY FAQ
1.How can I place an order for 24FC02T-I/MUY through Aetrix?
Please submit a Request for Quotation (RFQ) for 24FC02T-I/MUY 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 24FC02T-I/MUY reliable?
The price and inventory of 24FC02T-I/MUY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24FC02T-I/MUY is usually 5 days.
3.What payment methods are accepted for 24FC02T-I/MUY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24FC02T-I/MUY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24FC02T-I/MUY?
24FC02T-I/MUY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24FC02T-I/MUY 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 24FC02T-I/MUY?
For technical support, including 24FC02T-I/MUY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24FC02T-I/MUY requirements.
6.How does Aetrix verify that 24FC02T-I/MUY is sourced from the original manufacturer or authorized distributors?
All 24FC02T-I/MUY 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 24FC02T-I/MUY meets industry standards.
7.What is the process for return or replacement of 24FC02T-I/MUY?
All 24FC02T-I/MUY units undergo pre-shipment inspection (PSI). If there is an issue with 24FC02T-I/MUY, 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 24FC02T-I/MUY part is unused and in its original packaging.
Return procedure for 24FC02T-I/MUY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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