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Microchip Technology 24FC01T-E/MS
- Part No.:
- 24FC01T-E/MS
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
24FC01T-E/MS.pdf
- Description:
- IC EEPROM 1KBIT I2C 1MHZ 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,500
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Product details
Overview
24FC01T-E/MS from Microchip Technology Inc. is a 1 Kbit I²C-compatible serial EEPROM organized as 128 × 8-bit memory with hardware write-protection, 1 MHz max clock frequency (1.7V–5.5V), and extended temperature operation to +125°C. It supports 8-byte page writes, features Schmitt-trigger inputs and slope-controlled outputs, and is used in industrial sensor calibration storage and embedded system configuration retention.
For engineers reviewing the 24FC01T-E/MS datasheet, 24FC01T-E/MS pinout, 24FC01T-E/MS application, or 24FC01T-E/MS equivalent, key selection criteria include its 1.7V low-voltage operation, 1 MHz I²C speed at full VCC range, E-temp qualification, MSOP-8 package compatibility, and hardware WP pin for robust firmware-safe write protection.
Technical Context
The 24FC01T-E/MS implements a 2-wire I²C interface compliant with standard-mode (100 kHz), fast-mode (400 kHz), and fast-mode plus (1 MHz) timing specifications across its full 1.7V–5.5V supply range. Its internal architecture includes an 8-byte page latch, HV generator for EEPROM programming, and address pointer logic supporting current-address, random, and sequential read modes.
It uses Schmitt-trigger inputs on SDA/SCL with 50 ns spike suppression and controlled output fall/rise times to suppress ground bounce and bus noise. Write protection is implemented via a dedicated WP pin that disables all write cycles when pulled high, independent of I²C command flow.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1 Kbit (128 × 8-bit), sufficient for small configuration tables or calibration coefficients in space-constrained designs. |
| Interface | I²C-compatible 2-wire serial bus, enabling simple two-pin connection to microcontrollers without address decoding logic. |
| Max Clock Frequency | 1 MHz at 1.7V–5.5V - enables faster firmware updates and boot-time parameter loading vs. 400 kHz alternatives. |
| Write Cycle Time | 5 ms maximum (byte or page), deterministic timing for host-side polling or timeout-based write completion detection. |
| Endurance | 1 million erase/write cycles - supports frequent recalibration or logging in industrial monitoring applications. |
| Data Retention | 200 years at +25°C - ensures long-term reliability for unattended systems like utility meters or remote sensors. |
| Operating Temperature | -40°C to +125°C (Extended grade) - qualified for under-hood automotive, industrial motor drives, and outdoor infrastructure. |
Pinout & Package
24FC01T-E/MS is supplied in an 8-lead MSOP (Micro Small Outline Package) with 0.65 mm pitch, 3.0 mm × 3.0 mm body, and exposed pad option (not electrically connected). Pin 1 is marked by a beveled corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Address Input | No internal connection; may be left floating or tied to VSS/VCC without affecting device operation. |
| A1 | Address Input | No internal connection; unused per datasheet - eliminates need for external pull-up/down resistors. |
| A2 | Address Input | No internal connection; allows simplified PCB layout with no address-strapping constraints. |
| VSS | Ground | Reference return path for all signals; must be low-impedance to support noise-suppressed I²C timing. |
| SDA | Serial Data I/O | Open-drain bidirectional bus line requiring external pull-up resistor (2 kΩ typical for 1 MHz operation). |
| SCL | Serial Clock Input | Input-only clock line synchronized to host controller; Schmitt trigger enables reliable edge detection on noisy boards. |
| WP | Write-Protect Input | Active-high hardware lock: tied to VCC disables all write operations while preserving read access - critical for field firmware safety. |
| VCC | Power Supply | 1.7V–5.5V single supply; ultra-low 1 µA standby current (E-temp) extends battery life in always-on nodes. |
Key Features
| Feature | Design Value |
|---|---|
| 1 MHz I²C Operation at 1.7V | Enables high-speed parameter loading in low-power systems (e.g., battery-powered IoT sensors) without voltage boosting. |
| Hardware Write-Protection (WP) | Physically blocks write commands at silicon level - prevents accidental or malicious overwrites during firmware updates or brown-out conditions. |
| 8-Byte Page Write Buffer | Reduces I²C transaction count by up to 8× vs. byte-write mode, lowering bus arbitration overhead and improving system throughput. |
| Schmitt Trigger + Slope Control | Eliminates false Start/Stop detection and ground bounce-induced glitches on shared PCB traces with switching regulators or motors. |
| Extended Temp Range (-40°C to +125°C) | Validated for continuous operation in harsh environments including automotive engine control units and industrial PLC backplanes. |
Applications
| Industrial Sensor Calibration Storage | Automotive Body Control Module (BCM) Configuration |
|---|---|
Use Scenario: Storing factory-trimmed offset/gain coefficients for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration register accessed during power-up initialization via I²C; WP pin held high after calibration to prevent runtime corruption. Use Value: Eliminates need for external trimming components and enables field recalibration using same hardware - reducing BOM cost and test time. | Use Scenario: Holding seat position memory, mirror angle presets, and lighting profiles in automotive BCMs. IC Role / Device Role / Timing Role: I²C slave storing user preferences; accessed only during ignition-on sequence with 1 MHz clock for sub-100ms load time. Use Value: Meets AEC-Q100 Grade 1 requirements and survives under-hood thermal cycling - ensuring data integrity over 15-year vehicle lifetime. |
| Medical Infusion Pump Parameter Backup | Smart Energy Meter Firmware Settings |
Use Scenario: Retaining drug library metadata, dose limits, and alarm thresholds in Class II medical devices with battery backup. IC Role / Device Role / Timing Role: Fail-safe nonvolatile storage accessed during cold start; WP pin tied to MCU GPIO for dynamic lock/unlock during service mode. Use Value: 200-year data retention and 1M endurance guarantee safe operation across multiple battery replacements and software upgrades. | Use Scenario: Storing tariff schedules, communication keys, and metering calibration constants in ANSI C12.22-compliant smart meters. IC Role / Device Role / Timing Role: Secure configuration store with hardware write-disable; accessed via isolated I²C bridge during firmware update windows. Use Value: E-temp rating ensures stable operation inside sealed outdoor enclosures exposed to desert or arctic climates. |
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 | Same 1 Kbit capacity and MSOP-8 package, but rated only to +85°C and limited to 400 kHz max clock (1.7V–5.5V). | Not qualified for extended temperature environments; unsuitable for under-hood or outdoor industrial deployments. | Select when cost sensitivity outweighs E-temp requirement and system clock rate ≤400 kHz. |
| AT24C01D-MAHM-T | 1 Kbit I²C EEPROM in 8-lead MSOP; supports 1 MHz up to 2.5V–5.5V, but not below 2.5V - lacks 1.7V operation. | Cannot operate from single-cell Li-ion (2.7V nominal) or coin-cell (3V) supplies without regulation. | Choose if supply is regulated ≥2.5V and Microchip ecosystem independence is preferred. |
Compared with 24AA01T-I/MS, the 24FC01T-E/MS adds 1 MHz speed and +125°C operation at identical pinout and footprint; versus AT24C01D-MAHM-T, it delivers true 1.7V functionality essential for direct battery interfacing in portable equipment.
Availability
24FC01T-E/MS is available at Aetrix Electronics and suitable for industrial sensor calibration storage, automotive BCM configuration, medical infusion pump parameter backup, and smart energy meter firmware settings requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 24FC01T-E/MS 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, mixed-signal, analog, and Flash-IP solutions, serving automotive, industrial, consumer, and communications markets with high-reliability semiconductor products.
The 24FC01T-E/MS belongs to Microchip's 24XX01 family of serial EEPROMs, designed specifically for robust, low-power, I²C-based nonvolatile data storage in space- and power-constrained embedded systems.
FAQ
What is the minimum operating voltage for the 24FC01T-E/MS?
The 24FC01T-E/MS operates down to 1.7V across its full -40°C to +125°C temperature range, enabling direct connection to single-cell lithium batteries or low-voltage microcontroller I/O domains without level-shifting circuitry. This specification is confirmed in the Device Selection Table and Electrical Characteristics section of DS20001711M.
Does the 24FC01T-E/MS support 1 MHz I²C communication at all supply voltages?
Yes - the 24FC01T-E/MS supports up to 1 MHz I²C clock frequency across its entire 1.7V–5.5V VCC range, unlike 24AA01 or 24LC01B variants which are limited to 100 kHz below 2.5V or 400 kHz maximum. This is explicitly stated in the Device Selection Table and AC Characteristics table (Param No. 1, FCLK).
How is write protection implemented on the 24FC01T-E/MS?
The 24FC01T-E/MS uses a dedicated hardware WP pin: when tied to VCC, all write operations (byte and page) are inhibited while read access remains fully functional. This physical lock operates independently of I²C commands and persists through power cycles - a key safety feature verified in Section 2.4 and Figure 6-3 of DS20001711M.
What package type does the 24FC01T-E/MS use, and what are its key mechanical dimensions?
The 24FC01T-E/MS uses an 8-lead MSOP package (Micro Small Outline Package) with 0.65 mm lead pitch, 3.0 mm × 3.0 mm body size, and 1.1 mm max height. Pin 1 is identified by a beveled corner, and the exposed pad is optional and not electrically connected - details confirmed in Microchip Drawing C04-061-LT Rev E and Package Types table.
Can the 24FC01T-E/MS be used in automotive applications requiring AEC-Q100 qualification?
Yes - the 24FC01T-E/MS is explicitly AEC-Q100 qualified for automotive applications, as noted in the Features section of DS20001711M. Its Extended temperature grade (-40°C to +125°C), 1 million endurance cycles, and 200-year data retention meet critical automotive reliability requirements for modules such as body control units and ADAS sensor interfaces.
24FC01T-E/MS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm 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-MSOP
24FC01T-E/MS FAQ
1.How can I place an order for 24FC01T-E/MS through Aetrix?
Please submit a Request for Quotation (RFQ) for 24FC01T-E/MS 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/MS reliable?
The price and inventory of 24FC01T-E/MS 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/MS is usually 5 days.
3.What payment methods are accepted for 24FC01T-E/MS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24FC01T-E/MS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24FC01T-E/MS?
24FC01T-E/MS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24FC01T-E/MS 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/MS?
For technical support, including 24FC01T-E/MS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24FC01T-E/MS requirements.
6.How does Aetrix verify that 24FC01T-E/MS is sourced from the original manufacturer or authorized distributors?
All 24FC01T-E/MS 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/MS meets industry standards.
7.What is the process for return or replacement of 24FC01T-E/MS?
All 24FC01T-E/MS units undergo pre-shipment inspection (PSI). If there is an issue with 24FC01T-E/MS, 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/MS part is unused and in its original packaging.
Return procedure for 24FC01T-E/MS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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