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Microchip Technology 24FC04T-E/MS
- Part No.:
- 24FC04T-E/MS
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
24FC04T-E/MS.pdf
- Description:
- IC EEPROM 4KBIT I2C 1MHZ 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,193
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Product details
Overview
24FC04T-E/MS from Microchip Technology Inc. is a 4-Kbit I²C-compatible serial EEPROM organized as two 256 × 8-bit blocks, supporting 1 MHz clock frequency at 1.7V–5.5V supply, with hardware write-protection, 16-byte page buffer, and extended temperature operation from –40°C to +125°C. It enables nonvolatile data storage in space-constrained industrial sensor nodes and automotive body control modules.
For engineers reviewing the 24FC04T-E/MS datasheet, 24FC04T-E/MS pinout, 24FC04T-E/MS application, or 24FC04T-E/MS equivalent, key selection criteria include its 1 MHz I²C speed at low voltage, E-temp qualification, MSOP-8 packaging, and hardware WP pin for robust firmware parameter protection in harsh environments.
Technical Context
The 24FC04T-E/MS implements a two-wire I²C interface with Schmitt-trigger inputs and slope-controlled outputs to suppress noise and eliminate ground bounce. Its internal address pointer supports current-address, random, and sequential read modes, while the 16-byte page buffer enables efficient burst writes without host intervention between bytes.
It uses an on-chip high-voltage generator for EEPROM programming and features self-timed erase/write cycles with automatic internal timing-no external delay required. Write protection is implemented via a dedicated WP pin tied to VCC, disabling all write operations across the full 000h–1FFh address range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4 Kbit (2 × 256 × 8-bit blocks), enabling storage of calibration data or configuration registers in compact embedded systems |
| Interface | I²C-compatible two-wire serial bus, compatible with standard microcontroller I²C peripherals without protocol translation |
| Max Clock Frequency | 1 MHz at 1.7V–5.5V, allowing faster parameter updates than 400 kHz EEPROMs in time-critical applications |
| Write Cycle Time | 5 ms maximum (byte or page), ensuring predictable worst-case latency for critical save operations |
| Endurance | 1,000,000 erase/write cycles, supporting frequent logging in industrial monitoring devices over multi-year lifetimes |
| Data Retention | Greater than 200 years at +25°C, guaranteeing long-term integrity of stored calibration coefficients or security keys |
| Operating Temperature | –40°C to +125°C (Extended grade), qualified for under-hood automotive and industrial power electronics environments |
| Supply Voltage | 1.7V to 5.5V, enabling direct interfacing with 1.8V, 3.3V, and 5V logic domains without level shifters |
Pinout & Package
24FC04T-E/MS is supplied in an 8-lead MSOP package (Microchip package code MS), measuring 3.0 mm × 3.0 mm × 1.0 mm with gull-wing leads. The package is RoHS-compliant and rated for extended temperature operation.
| 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 in 24FC04 architecture and electrically isolated |
| A2 | Address Input | No internal connection; no effect on addressing or functionality |
| VSS | Ground Reference | System ground return path for all internal circuitry and I/O signals |
| SDA | Serial Data I/O | Open-drain bidirectional bus line requiring external pull-up; carries addresses, commands, and data |
| SCL | Serial Clock Input | Input-only clock signal synchronized to host controller; controls timing of all bus transactions |
| WP | Write-Protect Control | Active-high enable: tied to VCC disables all writes; tied to VSS enables full read/write access |
| VCC | Power Supply | Primary supply rail (1.7V–5.5V); powers EEPROM array, interface logic, and HV generator |
Key Features
| Feature | Design Value |
|---|---|
| 1 MHz I²C Compatibility | Enables 2.5× faster write throughput vs. 400 kHz EEPROMs, reducing firmware update latency in real-time systems |
| Schmitt Trigger Inputs | Provides 50 mV hysteresis on SDA/SCL, rejecting up to 50 ns noise spikes on noisy automotive or industrial buses |
| Hardware Write-Protection | Physically disables write operations when WP = VCC, preventing accidental or malicious corruption of critical settings |
| 16-Byte Page Write Buffer | Allows up to 16 bytes to be loaded before initiating internal write cycle, minimizing host CPU overhead during bulk saves |
| AEC-Q100 Qualified | Validated for automotive applications per stress test requirements, including HTOL, TCT, and ESD (≥4 kV HBM) |
| Low-Voltage Operation | Functions down to 1.7V, supporting direct integration with 1.8V microcontrollers and battery-backed systems |
Applications
| Industrial Sensor Calibration | Automotive Body Control Unit |
|---|---|
Use Scenario: Storing factory-trimmed offset/gain coefficients and linearization tables for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration memory accessed during power-up initialization and runtime calibration correction. Use Value: Ensures measurement accuracy remains stable across temperature and lifetime, leveraging 200-year data retention and 1M-cycle endurance. | Use Scenario: Holding seat position memory, mirror angle presets, and lighting configuration profiles in vehicle door modules. IC Role / Device Role / Timing Role: I²C slave device storing user preferences with hardware write-protection to prevent unintended overwrites during CAN/LIN message handling. Use Value: WP pin tied to VCC ensures settings survive ECU resets and software updates, meeting ASAM and AUTOSAR functional safety expectations. |
| Medical Diagnostic Equipment | Smart Energy Metering |
Use Scenario: Archiving diagnostic test results, calibration logs, and audit trails in portable ultrasound or ECG analyzers with battery backup. IC Role / Device Role / Timing Role: Low-power EEPROM interfaced to ARM Cortex-M4 MCU via 1 MHz I²C, activated only during save events to minimize energy use. Use Value: 1 µA standby current at +125°C and 1.7V operation extends battery life in field-deployed devices without compromising data integrity. | Use Scenario: Recording tariff schedules, tamper-event timestamps, and metering history in DIN-rail mounted electricity meters operating in outdoor enclosures. IC Role / Device Role / Timing Role: Extended-temperature EEPROM storing time-stamped kWh data with page-write efficiency to handle burst logging during peak demand intervals. Use Value: 5 ms max write cycle and 16-byte buffering allow >200 log entries/sec without blocking the main metering processor. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA04T-I/MS | Lower max clock (400 kHz), industrial temp only (–40°C to +85°C), same 1.7V–5.5V VCC range | Not suitable for automotive under-hood or high-speed logging where 1 MHz or +125°C operation is required | Select when cost sensitivity outweighs speed/temp requirements and AEC-Q100 is not mandated |
| AT24C04D-MAHM-T | Same 4-Kbit size and I²C interface, but 1 MHz support only above 2.5V; no AEC-Q100 qualification; different WP behavior (active-low) | Lacks extended temperature validation and automotive qualification; requires level-shifting if used with 1.8V hosts | Consider only for commercial-grade consumer products where automotive reliability and low-voltage 1 MHz operation are not needed |
Compared with 24AA04T-I/MS and AT24C04D-MAHM-T, the 24FC04T-E/MS uniquely delivers 1 MHz I²C performance across the full 1.7V–5.5V range and AEC-Q100 qualification-making it the only choice for automotive ECU configuration storage and high-throughput industrial data loggers requiring guaranteed operation at +125°C.
Availability
24FC04T-E/MS is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive body control units, medical diagnostic equipment, and smart energy metering requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 24FC04T-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 microcontrollers, analog components, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 24FC04T-E/MS belongs to Microchip's 24XX04 family of serial EEPROMs, designed specifically for reliable, low-power nonvolatile storage in automotive, industrial, and medical systems demanding extended temperature operation and high noise immunity.
FAQ
What is the maximum I²C clock frequency supported by the 24FC04T-E/MS?
The 24FC04T-E/MS supports up to 1 MHz I²C clock frequency across its full 1.7V–5.5V supply range. This is confirmed in the Device Selection Table and AC Characteristics section of DS20001708P, distinguishing it from the 24AA04 (400 kHz) and 24LC04B (400 kHz, min 2.5V). At 1.7V ≤ VCC < 2.5V, the 24FC04T-E/MS maintains 1 MHz operation-unlike the 24AA04, which drops to 100 kHz below 2.5V.
Does the 24FC04T-E/MS require external pull-up resistors on SDA and SCL lines?
Yes, the 24FC04T-E/MS requires external pull-up resistors on both SDA and SCL lines because its I/O pins are open-drain. The datasheet recommends ~2 kΩ for 1 MHz operation. Pull-up values must be selected based on bus capacitance and desired rise time; typical designs use 1.8 kΩ to 2.2 kΩ for 1 MHz I²C on short PCB traces. The 24FC04T-E/MS itself does not integrate pull-ups.
How is write protection implemented on the 24FC04T-E/MS?
Write protection on the 24FC04T-E/MS is implemented via the WP pin: when tied to VCC, the entire memory array (addresses 000h–1FFh) is write-inhibited while read operations remain fully functional. When WP is tied to VSS, normal read/write access is enabled. This hardware-level protection is active regardless of I²C command sequence and cannot be overridden by software.
What package type does the 24FC04T-E/MS use, and what are its key mechanical dimensions?
The 24FC04T-E/MS uses an 8-lead MSOP package (Microchip package code MS), with body dimensions of 3.0 mm × 3.0 mm × 1.0 mm and 0.65 mm lead pitch. It features gull-wing leads and complies with JEDEC MO-187AB. The package marking "24FC04" appears on the top surface, and the "E" suffix denotes extended temperature grade (–40°C to +125°C).
Is the 24FC04T-E/MS AEC-Q100 qualified, and which stress tests does that cover?
Yes, the 24FC04T-E/MS is AEC-Q100 qualified (Grade 1, –40°C to +125°C). This qualification includes stress testing for high-temperature operating life (HTOL), temperature cycling (TCT), electrostatic discharge (HBM ≥4 kV), latch-up, and solderability. Qualification applies specifically to the 24FC04 variant in MSOP and other listed packages, as documented in Microchip's AEC-Q100 reports referenced in DS20001708P.
24FC04T-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:
- 4Kbit
- Memory Organization:
- 256 x 8 x 2
- 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
24FC04T-E/MS FAQ
1.How can I place an order for 24FC04T-E/MS through Aetrix?
Please submit a Request for Quotation (RFQ) for 24FC04T-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 24FC04T-E/MS reliable?
The price and inventory of 24FC04T-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 24FC04T-E/MS is usually 5 days.
3.What payment methods are accepted for 24FC04T-E/MS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24FC04T-E/MS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24FC04T-E/MS?
24FC04T-E/MS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24FC04T-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 24FC04T-E/MS?
For technical support, including 24FC04T-E/MS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24FC04T-E/MS requirements.
6.How does Aetrix verify that 24FC04T-E/MS is sourced from the original manufacturer or authorized distributors?
All 24FC04T-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 24FC04T-E/MS meets industry standards.
7.What is the process for return or replacement of 24FC04T-E/MS?
All 24FC04T-E/MS units undergo pre-shipment inspection (PSI). If there is an issue with 24FC04T-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 24FC04T-E/MS part is unused and in its original packaging.
Return procedure for 24FC04T-E/MS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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