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Microchip Technology 24FC01T-E/SN
- Part No.:
- 24FC01T-E/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
24FC01T-E/SN.pdf
- Description:
- IC EEPROM 1KBIT I2C 1MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:550
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Product details
Overview
24FC01T-E/SN 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 at 1.7–5.5 V, and extended temperature operation to +125°C. It features an 8-byte page write buffer, Schmitt-trigger inputs, and <1 µA standby current - deployed in automotive body control modules for storing calibration data and configuration parameters.
For engineers reviewing the 24FC01T-E/SN datasheet, 24FC01T-E/SN pinout, 24FC01T-E/SN application, or 24FC01T-E/SN equivalent, key selection criteria include its 1 MHz I²C speed at low voltage (1.7 V), E-temp grade (-40°C to +125°C), hardware WP pin functionality, and SOIC-8 (SN) package compatibility with legacy board layouts.
Technical Context
The 24FC01T-E/SN implements a two-wire I²C interface with fixed 7-bit client address (1010xxx) and R/W bit control, supporting byte and page write modes. Its internal Address Pointer auto-increments during sequential reads and wraps within 8-byte physical pages.
It uses on-chip high-voltage generation for EEPROM programming, includes noise-suppressing Schmitt-trigger inputs on SDA/SCL, and enforces strict timing compliance: THIGH = 260 ns min and TAA = 450 ns max at 1.7–5.5 V, enabling robust operation in electrically noisy automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1 Kbit (128 × 8-bit), sufficient for small firmware patches or sensor calibration tables |
| I²C Clock Frequency | Up to 1 MHz at 1.7–5.5 V - enables faster configuration loading vs. 400 kHz alternatives |
| Supply Voltage Range | 1.7 V to 5.5 V - supports direct connection to 1.8 V, 3.3 V, and 5 V systems without level shifting |
| Write Cycle Time | 5 ms maximum per byte or page - defines minimum delay between successive writes |
| Endurance & Retention | 1 million erase/write cycles and >200 years data retention - validated for long-life automotive ECUs |
| Temperature Range | -40°C to +125°C (Extended grade) - qualified for under-hood and powertrain applications |
| ESD Protection | >4 kV HBM - meets automotive system-level ESD immunity requirements |
Pinout & Package
24FC01T-E/SN is supplied in an 8-lead SOIC package (SN), 3.90 mm wide, with standard JEDEC MS-012AC footprint. Pin 1 is marked by a beveled corner or notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Address Input | No internal connection - may be left floating or tied to VSS/VCC without affecting operation |
| A1 | Address Input | No internal connection - unused; no impact on device addressing |
| A2 | Address Input | No internal connection - not required for 24FC01's fixed 7-bit address |
| VSS | Ground | Reference return path for all I/O and internal circuitry; must be low-impedance |
| SDA | Serial Data I/O | Open-drain bidirectional bus line requiring external pull-up (2 kΩ typical for 1 MHz) |
| SCL | Serial Clock Input | Input-only clock line synchronized to host controller; drives internal timing logic |
| WP | Write-Protect Control | Active-high enable: tied to VCC blocks all writes; tied to VSS enables full read/write access |
| VCC | Power Supply | Single supply input (1.7–5.5 V); powers EEPROM array, logic, and HV generator |
Key Features
| Feature | Design Value |
|---|---|
| 1 MHz I²C Interface | Enables 2.5× faster configuration writes than 400 kHz EEPROMs, reducing boot-time latency |
| Hardware Write-Protection | Pin-controlled (WP) global lock prevents accidental overwrites during firmware updates or power faults |
| Low-Voltage Operation (1.7 V) | Permits direct integration into 1.8 V microcontroller subsystems without voltage translation |
| 8-Byte Page Write Buffer | Reduces bus occupancy by batching up to 8 bytes per Stop-initiated write cycle |
| Schmitt Trigger Inputs | Suppresses bus noise up to 50 ns spikes, ensuring reliable Start/Stop detection in noisy environments |
Applications
| Automotive Body Control Unit (BCU) | Industrial Sensor Node |
|---|---|
Use Scenario: Storing seat position presets, mirror calibration offsets, and lighting profiles across vehicle lifecycle. IC Role / Device Role / Timing Role: Nonvolatile configuration storage with guaranteed data integrity during ignition cycling and battery disconnect events. Use Value: 125°C rating ensures reliability in dashboard-mounted ECUs; hardware WP prevents corruption during CAN-based reprogramming. | Use Scenario: Retaining factory-calibrated ADC gain/offset coefficients and sensor linearization tables in wireless temperature transmitters. IC Role / Device Role / Timing Role: Persistent parameter storage accessed via I²C during power-up initialization and field recalibration. Use Value: 1.7 V operation allows direct interfacing with ultra-low-power 1.8 V MCUs; >200-year retention eliminates need for periodic refresh. |
| Medical Infusion Pump | Smart Energy Meter |
Use Scenario: Logging dose history, alarm thresholds, and user-defined therapy modes with tamper-resistant storage. IC Role / Device Role / Timing Role: Secure, write-protected memory for critical operational parameters compliant with IEC 62304 Class B software requirements. Use Value: Hardware WP pin enables deterministic lockout during runtime; ESD >4 kV protects against handling-induced failures in clinical settings. | Use Scenario: Holding tariff schedules, metering constants, and firmware update flags in DIN-rail mounted electricity meters. IC Role / Device Role / Timing Role: Long-term configuration storage accessible over isolated I²C bus during meter commissioning and remote firmware upgrades. Use Value: 1 million endurance cycles support daily tariff changes over 27+ years; SOIC-8 package simplifies automated assembly and rework. |
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/SN | Max clock 400 kHz; rated only to +85°C; same 1.7–5.5 V range and SOIC-8 package | Not qualified for under-hood or extended-temperature industrial use | Select when cost sensitivity outweighs speed/temp requirements and ambient stays ≤85°C |
| AT24C01D-SSHM-T | 1 MHz capable; -40°C to +125°C; but requires 2.5 V min supply and lacks factory-programming option | Not suitable for 1.8 V systems; no AEC-Q100 qualification | Choose if sourcing flexibility is prioritized and 2.5 V minimum supply is acceptable |
Compared with 24AA01T-I/SN, the 24FC01T-E/SN delivers 2.5× faster I²C throughput and extended temperature capability - critical for automotive and industrial edge nodes. Against AT24C01D-SSHM-T, it offers lower-voltage operation and AEC-Q100 qualification, making it preferable for safety-critical or battery-powered designs.
Availability
24FC01T-E/SN is available at Aetrix Electronics and suitable for automotive body control units, industrial sensor nodes, medical infusion pumps, and smart energy meters requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 24FC01T-E/SN 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 design and manufacturing operations.
The 24FC01T-E/SN belongs to Microchip's 24XX01 family of I²C serial EEPROMs, designed specifically for automotive, industrial, and medical applications demanding extended temperature operation, low-voltage compatibility, and AEC-Q100 qualification.
FAQ
What is the maximum I²C clock frequency supported by the 24FC01T-E/SN?
The 24FC01T-E/SN supports up to 1 MHz I²C clock frequency across its full 1.7 V to 5.5 V supply range. This is higher than the 400 kHz limit of the 24AA01 and 24LC01B variants, enabling faster configuration writes in time-sensitive applications. Timing parameters such as THIGH (260 ns min) and TLOW (500 ns min) are specified to ensure reliable operation at this speed.
Does the 24FC01T-E/SN require external pull-up resistors on SDA and SCL lines?
Yes, the 24FC01T-E/SN requires external pull-up resistors on both SDA and SCL lines because its I/O pins are open-drain. For 1 MHz operation, a 2 kΩ pull-up to VCC is recommended. The value scales inversely with bus capacitance and target speed - 10 kΩ is typical for 100 kHz, while 2 kΩ ensures adequate rise time at 1 MHz per AC specifications in DS20001711M.
How does the Write-Protect (WP) pin function on the 24FC01T-E/SN?
The WP pin on the 24FC01T-E/SN is an active-high hardware lock: when tied to VCC, it disables all write operations (byte and page) to the entire memory array (addresses 00h–7Fh), while read operations remain fully functional. When tied to VSS or left floating, normal read/write access is enabled. This provides deterministic, glitch-immune protection independent of firmware state.
Is the 24FC01T-E/SN AEC-Q100 qualified?
Yes, the 24FC01T-E/SN is AEC-Q100 qualified for Grade 1 (−40°C to +125°C), as confirmed in the device selection table and features list of DS20001711M. This qualification covers stress testing for temperature cycling, humidity, ESD, and electrical performance - making it suitable for automotive powertrain, chassis, and body electronics where reliability is mandated.
What package type does the 24FC01T-E/SN use, and is it compatible with standard SOIC-8 footprints?
The 24FC01T-E/SN uses the 8-lead SOIC package denoted by the "SN" suffix, conforming to JEDEC MS-012AC outline (3.90 mm width). It is fully compatible with standard SOIC-8 land patterns and pick-and-place tooling. Pin 1 is identified by a beveled corner or notch, and the package supports reflow soldering per Microchip's packaging specification.
24FC01T-E/SN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- 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-SOIC
24FC01T-E/SN FAQ
1.How can I place an order for 24FC01T-E/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for 24FC01T-E/SN 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/SN reliable?
The price and inventory of 24FC01T-E/SN 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/SN is usually 5 days.
3.What payment methods are accepted for 24FC01T-E/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24FC01T-E/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24FC01T-E/SN?
24FC01T-E/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24FC01T-E/SN 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/SN?
For technical support, including 24FC01T-E/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24FC01T-E/SN requirements.
6.How does Aetrix verify that 24FC01T-E/SN is sourced from the original manufacturer or authorized distributors?
All 24FC01T-E/SN 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/SN meets industry standards.
7.What is the process for return or replacement of 24FC01T-E/SN?
All 24FC01T-E/SN units undergo pre-shipment inspection (PSI). If there is an issue with 24FC01T-E/SN, 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/SN part is unused and in its original packaging.
Return procedure for 24FC01T-E/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24FC01T-E/SN Tags
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