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Microchip Technology 24FC01T-E/MUY
- Part No.:
- 24FC01T-E/MUY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
24FC01T-E/MUY.pdf
- Description:
- IC EEPROM 1KBIT I2C 1MHZ 8UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,635
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Product details
Overview
24FC01T-E/MUY from Microchip Technology Inc. is a 1 Kbit I²C-compatible serial EEPROM organized as 128 × 8-bit memory with hardware write-protection, 1 MHz clock support down to 1.7V, and extended temperature operation from −40°C to +125°C. It features an 8-byte page write buffer, Schmitt-trigger inputs, slope-controlled outputs, and >1 million erase/write cycles - deployed in automotive body control modules for storing calibration data and configuration parameters.
For engineers reviewing the 24FC01T-E/MUY datasheet, 24FC01T-E/MUY pinout, 24FC01T-E/MUY application, or 24FC01T-E/MUY equivalent, key selection considerations include its 1.7V–5.5V supply range, E-temp grade qualification, TDFN-8 (2×3 mm) package, I²C bus timing compliance at 1 MHz, and hardware WP pin behavior under VCC/VSS bias.
Technical Context
The 24FC01T-E/MUY implements a 2-wire I²C interface with fixed 7-bit device address (1010xxx), supports byte and page write modes (up to 8 bytes per page), and uses internal address pointer auto-increment for sequential reads. Its EEPROM array is accessed via host-generated Start/Stop conditions and ACK polling during write cycles.
It integrates Schmitt-trigger inputs on SDA/SCL for noise immunity, output slope control to suppress ground bounce, and a dedicated Write-Protect (WP) pin that disables all writes when pulled high. The device operates without external components beyond standard I²C pull-ups and requires no external voltage programming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1 Kbit (128 × 8-bit), sufficient for small firmware patches or sensor calibration tables |
| Interface | I²C-compatible 2-wire serial bus, compatible with standard microcontroller I²C peripherals |
| Max Clock Frequency | 1 MHz at 1.7V–5.5V, enabling faster configuration loading than 400 kHz EEPROMs |
| Write Cycle Time | ≤5 ms per byte or page, limiting worst-case latency during non-volatile updates |
| Endurance | 1,000,000 erase/write cycles, supporting frequent field calibration in industrial sensors |
| Data Retention | >200 years at +25°C, ensuring long-term reliability in unpowered storage |
| Operating Temp | −40°C to +125°C (Extended grade), qualified for under-hood automotive use |
| Supply Voltage | 1.7V to 5.5V, enabling direct interface with 1.8V, 3.3V, and 5V logic domains |
Pinout & Package
24FC01T-E/MUY is housed in an 8-lead TDFN (Thin Dual Flat No-lead) package measuring 2 mm × 3 mm × 0.75 mm, with exposed pad (EP) connected to VSS or left floating per design requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Address Input | No internal connection; may be floated or tied to VSS/VCC without affecting operation |
| A1 | Address Input | No internal connection; unused in 24FC01 family; no impact on device addressing |
| A2 | Address Input | No internal connection; not part of I²C slave address generation |
| VSS | Ground | Reference node for all signals; EP must be connected to VSS or left floating per layout guidelines |
| SDA | Serial Data I/O | Open-drain bidirectional line requiring external pull-up; carries address, data, and ACK bits |
| SCL | Serial Clock Input | Host-controlled clock input; synchronizes all read/write transfers and timing windows |
| WP | Write-Protect Input | Hardware lock: tied to VCC → full memory write-disabled; tied to VSS → normal operation |
| VCC | Power Supply | Single supply input (1.7–5.5V); powers internal EEPROM array and interface logic |
Key Features
| Feature | Design Value |
|---|---|
| 1 MHz I²C Operation | Enables faster configuration writes vs. legacy 400 kHz EEPROMs, reducing boot-time latency |
| Hardware Write-Protection | Prevents accidental overwrites during power transitions or firmware faults via simple VCC tie |
| Schmitt Trigger Inputs | Rejects bus noise up to 50 ns spikes, improving robustness in electrically noisy automotive environments |
| 8-Byte Page Write Buffer | Reduces I²C transaction count by up to 8× compared to byte-write mode, lowering bus overhead |
| Extended Temperature Range | Validated operation from −40°C to +125°C meets AEC-Q100 Grade 1 requirements for automotive ECUs |
| Low Standby Current | 3 µA max at E-temp ensures minimal battery drain in always-on vehicle subsystems |
Applications
| Automotive Body Control Unit | Industrial Sensor Node |
|---|---|
Use Scenario: Storing seat position presets, mirror angle configurations, and lighting profiles in vehicle door modules. IC Role / Device Role / Timing Role: Non-volatile parameter storage with infrequent writes and frequent reads; accessed via microcontroller I²C during power-up or user input. Use Value: Hardware WP pin prevents corruption during ignition transients; 125°C rating ensures reliability near power electronics. | Use Scenario: Retaining calibrated offset/gain coefficients and sensor ID in wireless temperature/humidity nodes. IC Role / Device Role / Timing Role: Configuration memory updated once per field deployment; read at startup to initialize ADC scaling. Use Value: 1.7V operation enables direct interface with low-power MCU sleep rails; >200-year retention avoids recalibration over product lifetime. |
| Medical Diagnostic Handset | Smart Energy Meter |
Use Scenario: Saving user-defined test protocols and calibration history in portable ultrasound or ECG devices. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage for regulatory audit trails; write-protected during normal operation. Use Value: WP pin tied to system security controller ensures firmware cannot overwrite critical logs; RoHS-compliant packaging meets medical material standards. | Use Scenario: Holding tariff schedules, metering constants, and firmware update flags in utility-grade electricity meters. IC Role / Device Role / Timing Role: Long-life data archive accessed only during commissioning or OTA updates; isolated from main processing domain. Use Value: 1M-cycle endurance supports decades of firmware patching; 125°C rating accommodates sealed outdoor enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA01T-I/MS | Lower max clock (400 kHz), I-temp only (−40°C to +85°C), same 1 Kbit density and TDFN-8 footprint | Not qualified for under-hood or extended-temperature industrial use; suitable for consumer-grade control panels | Select when cost sensitivity outweighs speed/temp requirements and AEC-Q100 is unnecessary |
| AT24C01D-SSHM-T | Same 1 Kbit size, 1 MHz I²C, but rated only to +85°C; different pinout (SOIC-8), no WP pin | Lacks hardware write protection and extended temperature capability; requires software-based protection schemes | Choose only if SOIC-8 is mandated and WP functionality is implemented externally or omitted |
Compared with 24FC01T-E/MUY, the 24AA01T-I/MS trades speed and temperature range for lower cost, while the AT24C01D-SSHM-T sacrifices WP pin and E-temp rating for SOIC compatibility - making 24FC01T-E/MUY the sole option meeting AEC-Q100, 1 MHz, and hardware write-protect in TDFN-8.
Availability
24FC01T-E/MUY is available at Aetrix Electronics and suitable for automotive body control units, industrial sensor nodes, medical diagnostic handsets, and smart energy meters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 24FC01T-E/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 devices, and memory solutions, headquartered in Chandler, Arizona, with global manufacturing and support infrastructure.
The 24FC01 belongs to Microchip's 24XX01 family of I²C serial EEPROMs designed specifically for space-constrained, low-voltage, and high-reliability applications in automotive, industrial, and medical systems.
FAQ
What is the maximum I²C clock frequency supported by the 24FC01T-E/MUY?
The 24FC01T-E/MUY supports up to 1 MHz I²C clock frequency across its full 1.7V–5.5V supply range, unlike the 24AA01 (max 400 kHz) or 24LC01B (max 400 kHz below 2.5V). This allows faster configuration writes in time-critical boot sequences. The 24FC01T-E/MUY maintains full AC timing compliance including THIGH ≤ 260 ns and TLOW ≤ 500 ns at 1 MHz, verified per DS20001711M.
Does the 24FC01T-E/MUY require external pull-up resistors on SDA and SCL lines?
Yes, the 24FC01T-E/MUY requires external pull-up resistors on both SDA and SCL lines because its I/O pins are open-drain. Recommended values are 2 kΩ for 1 MHz operation, 10 kΩ for 100 kHz. These resistors ensure proper logic high levels and meet rise time specifications (TR ≤ 1000 ns). The 24FC01T-E/MUY does not integrate internal pull-ups, and omitting them will prevent reliable communication.
How does the Write-Protect (WP) pin function on the 24FC01T-E/MUY?
On the 24FC01T-E/MUY, the WP pin provides hardware-level write inhibition: when tied to VCC, the entire memory array (addresses 00h–7Fh) becomes read-only; when tied to VSS, full read/write access is enabled. Unlike software locks, this protection remains active during power cycling and brown-out events. The 24FC01T-E/MUY does not support partial-page or block-level write protection - only full-array enable/disable.
Is the 24FC01T-E/MUY AEC-Q100 qualified, and what grade does it meet?
Yes, the 24FC01T-E/MUY is AEC-Q100 qualified per the 24XX01 family documentation (DS20001711M), meeting Grade 1 requirements for automotive applications. Its extended temperature range (−40°C to +125°C), 1.7V–5.5V operation, and ESD protection (>4 kV) satisfy stress testing for engine bay and chassis-mounted ECUs. The "E" suffix in 24FC01T-E/MUY explicitly denotes Extended temperature grade compliance.
What package type is used for the 24FC01T-E/MUY, and what are its key mechanical dimensions?
The 24FC01T-E/MUY uses an 8-lead TDFN (Thin Dual Flat No-lead) package with 2 mm × 3 mm body and 0.75 mm height, per Microchip drawing C04-2061-LT. It features an exposed thermal pad (EP) on the bottom surface, designated as pin 9 in land pattern documentation, which must be connected to VSS or left floating. Lead pitch is 0.5 mm, and the package is RoHS-compliant with matte tin finish.
24FC01T-E/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:
- 1Kbit
- Memory Organization:
- 128 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-UDFN (2x3)
24FC01T-E/MUY FAQ
1.How can I place an order for 24FC01T-E/MUY through Aetrix?
Please submit a Request for Quotation (RFQ) for 24FC01T-E/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 24FC01T-E/MUY reliable?
The price and inventory of 24FC01T-E/MUY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24FC01T-E/MUY is usually 5 days.
3.What payment methods are accepted for 24FC01T-E/MUY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24FC01T-E/MUY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24FC01T-E/MUY?
24FC01T-E/MUY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24FC01T-E/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 24FC01T-E/MUY?
For technical support, including 24FC01T-E/MUY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24FC01T-E/MUY requirements.
6.How does Aetrix verify that 24FC01T-E/MUY is sourced from the original manufacturer or authorized distributors?
All 24FC01T-E/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 24FC01T-E/MUY meets industry standards.
7.What is the process for return or replacement of 24FC01T-E/MUY?
All 24FC01T-E/MUY units undergo pre-shipment inspection (PSI). If there is an issue with 24FC01T-E/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 24FC01T-E/MUY part is unused and in its original packaging.
Return procedure for 24FC01T-E/MUY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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