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Microchip Technology 24FC04T-E/ST
- Part No.:
- 24FC04T-E/ST
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
24FC04T-E/ST.pdf
- Description:
- IC EEPROM 4KBIT I2C 1MHZ 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,045
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Product details
Overview
24FC04T-E/ST 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 1.7–5.5 V supply, with hardware write-protection, 16-byte page write buffer, and extended temperature operation to +125°C. It serves in industrial control modules for nonvolatile parameter storage under low-voltage, noise-prone conditions.
For engineers reviewing the 24FC04T-E/ST datasheet, 24FC04T-E/ST pinout, 24FC04T-E/ST application, or 24FC04T-E/ST equivalent, key selection criteria include its 1 MHz I²C speed at full 1.7V VCC, E-temp (−40°C to +125°C) qualification, AEC-Q100 automotive readiness, and SOIC-8 wettable flank package compatibility with automated optical inspection.
Technical Context
The 24FC04T-E/ST implements a two-wire I²C interface with Schmitt-trigger inputs and slope-controlled outputs to suppress ground bounce and bus noise. Its internal address pointer supports current-address, random, and sequential read modes, while the 16-byte page write buffer enables burst writes without intermediate Stop conditions.
It uses an on-chip high-voltage generator for EEPROM programming and features acknowledge polling to detect write-cycle completion. The WP pin provides hardware-level write protection across the full 000h–1FFh address space, independent of software commands.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4 Kbit (2 × 256 × 8-bit blocks), enabling compact firmware configuration storage |
| I²C Clock Frequency | Up to 1 MHz at 1.7–5.5 V - supports high-speed host communication without level-shifting |
| Supply Voltage Range | 1.7 V to 5.5 V - compatible with battery-backed, low-power, and mixed-voltage systems |
| Write Cycle Time | 5 ms maximum (byte or page) - defines minimum inter-write latency for real-time logging |
| Endurance | 1,000,000 erase/write cycles - ensures long-term reliability in field-updatable devices |
| Data Retention | 200 years at +25°C - guarantees persistent storage across product lifecycle without refresh |
| Temperature Range | −40°C to +125°C (Extended grade) - validated for under-hood automotive and industrial edge nodes |
Pinout & Package
24FC04T-E/ST is supplied in an 8-lead SOIC package with wettable flanks (ST suffix), optimized for solder joint inspection and IPC-A-610 Class 3 assembly. Pin 1 is marked with a bevelled corner or notch; pins A0–A2 are no-connects.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1, A2 | No-connect (NC) | Internally unconnected; may be left floating or tied to VSS/VCC without functional impact |
| VSS | Ground reference | Return path for all internal circuitry; must be low-impedance for noise immunity |
| SDA | Serial data I/O | Open-drain bidirectional bus line requiring external pull-up (2 kΩ typical for 1 MHz) |
| SCL | Serial clock input | Master-generated clock synchronizing all read/write transfers and ACK timing |
| WP | Hardware write-protect | Tie to VCC to lock entire memory array; tie to VSS to enable full read/write access |
| VCC | Power supply | 1.7–5.5 V input powering EEPROM core, interface logic, and HV generator |
Key Features
| Feature | Design Value |
|---|---|
| 1 MHz I²C compatibility at 1.7 V | Enables direct interfacing with modern microcontrollers (e.g., PIC16F1xxx, STM32L0) without voltage translation |
| Schmitt-trigger SDA/SCL inputs | Rejects >50 ns noise spikes, ensuring robust operation on long or noisy PCB traces |
| 16-byte page write buffer | Reduces I²C transaction overhead by up to 16× versus byte-write for contiguous data updates |
| Hardware WP pin | Provides fail-safe write protection independent of firmware state or power sequencing |
| AEC-Q100 qualified | Validated for automotive applications including body control modules and sensor nodes |
Applications
| Industrial Sensor Calibration | Automotive Body Control Unit |
|---|---|
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-on initialization via I²C at 400 kHz. Use Value: Eliminates need for external calibration EEPROM; 1.7 V operation allows retention during brown-out events. | Use Scenario: Saving user-configurable settings (e.g., mirror position, lighting profiles) in door module ECUs. IC Role / Device Role / Timing Role: Persistent parameter store interfaced to 8-bit MCU over I²C; WP pin tied to ignition-switched rail for runtime write-lock. Use Value: AEC-Q100 qualification ensures reliability across thermal cycling; 200-year data retention prevents setting loss over vehicle lifetime. |
| Medical Infusion Pump Setup | Smart Energy Meter Firmware Patch |
Use Scenario: Holding safety-critical operational limits (e.g., max flow rate, alarm thresholds) updated only during service mode. IC Role / Device Role / Timing Role: Secure configuration vault with hardware write-protection enabled during normal operation. Use Value: WP pin hardwired to service-mode enable signal prevents accidental overwrite during therapy delivery. | Use Scenario: Storing delta patches applied to flash-resident firmware during over-the-air updates. IC Role / Device Role / Timing Role: High-endurance log buffer for patch metadata (version, CRC, timestamp) written after each successful update. Use Value: 1M-cycle endurance supports >10 years of quarterly firmware updates without wear-out risk. |
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/ST | Max clock 400 kHz; rated only to +85°C; same SOIC-8 package and pinout | Not suitable for under-hood or high-ambient industrial environments requiring +125°C operation | Select when cost sensitivity outweighs speed/temp requirements and AEC-Q100 is not mandated |
| AT24C04D-SSHM-T | 1 MHz I²C, +125°C, but requires 2.5 V min VCC; different manufacturer marking and test flow | Lacks AEC-Q100 qualification; not approved for automotive safety-critical subsystems | Use where Microchip sourcing constraints exist but automotive compliance is not required |
Compared with 24AA04T-I/ST and AT24C04D-SSHM-T, the 24FC04T-E/ST uniquely delivers 1 MHz speed down to 1.7 V *and* AEC-Q100 qualification in the same SOIC-8 wettable flank package - making it the only choice for automotive-grade, low-voltage, high-throughput EEPROM applications.
Availability
24FC04T-E/ST is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive body control units, medical infusion pump setup, and smart energy meter firmware patch applications requiring stable component supply across extended temperature and automotive-qualified lifecycles.
Supply support for 24FC04T-E/ST 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, analog, FPGA, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 24FC04T-E/ST belongs to Microchip's 24XX04 family of serial EEPROMs, designed specifically for reliable, low-voltage, high-speed nonvolatile storage in automotive, industrial, and medical systems demanding AEC-Q100 compliance and extended temperature operation.
FAQ
What is the minimum operating voltage for the 24FC04T-E/ST?
The 24FC04T-E/ST operates down to 1.7 V across its full −40°C to +125°C temperature range. This enables use in battery-powered or energy-harvesting systems where supply rails dip below 2.5 V, unlike the 24LC04B which requires ≥2.5 V. The device maintains full 1 MHz I²C functionality even at 1.7 V, as confirmed in DS20001708P Table 1-2.
Does the 24FC04T-E/ST support page write operations, and what is the buffer size?
Yes, the 24FC04T-E/ST supports page write operations with a 16-byte internal buffer. This allows up to 16 contiguous bytes to be loaded into the buffer and written to memory in a single self-timed cycle (max 5 ms). Page boundaries align every 16 bytes (00h–0Fh, 10h–1Fh, etc.), and crossing a boundary causes wraparound within the current page - a behavior documented in Section 6.2 of the datasheet.
How does the Write-Protect (WP) pin function on the 24FC04T-E/ST?
When the WP pin is tied to VCC, the entire 4-Kbit memory array (addresses 000h–1FFh) is write-protected - all write commands (byte, page, or erase) are ignored, though reads remain fully functional. When WP is tied to VSS, full read/write access is enabled. This hardware-level protection operates independently of I²C commands and persists across power cycles, providing deterministic security against firmware faults.
Is the 24FC04T-E/ST AEC-Q100 qualified, and what grade does it meet?
Yes, the 24FC04T-E/ST is AEC-Q100 qualified per the "Automotive" column in the Device Selection Table (DS20001708P, page 2). It meets Grade 1 (−40°C to +125°C) requirements, including stress testing for temperature cycling, humidity bias, and ESD - making it suitable for engine bay, transmission, and chassis control modules where reliability under harsh conditions is mandatory.
What package type does the '-ST' suffix indicate for the 24FC04T-E/ST?
The '-ST' suffix denotes an 8-lead SOIC (Small Outline Integrated Circuit) package with wettable flanks - a variant of Microchip's standard SOIC-8 (drawing C04-057-SN) featuring extended lead metallization to enable automated optical inspection (AOI) of solder joints. This package is RoHS-compliant, JEDEC-standardized, and compatible with reflow and wave soldering processes used in high-volume manufacturing.
24FC04T-E/ST Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm 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-TSSOP
24FC04T-E/ST FAQ
1.How can I place an order for 24FC04T-E/ST through Aetrix?
Please submit a Request for Quotation (RFQ) for 24FC04T-E/ST 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/ST reliable?
The price and inventory of 24FC04T-E/ST 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/ST is usually 5 days.
3.What payment methods are accepted for 24FC04T-E/ST?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24FC04T-E/ST transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24FC04T-E/ST?
24FC04T-E/ST orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24FC04T-E/ST 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/ST?
For technical support, including 24FC04T-E/ST datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24FC04T-E/ST requirements.
6.How does Aetrix verify that 24FC04T-E/ST is sourced from the original manufacturer or authorized distributors?
All 24FC04T-E/ST 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/ST meets industry standards.
7.What is the process for return or replacement of 24FC04T-E/ST?
All 24FC04T-E/ST units undergo pre-shipment inspection (PSI). If there is an issue with 24FC04T-E/ST, 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/ST part is unused and in its original packaging.
Return procedure for 24FC04T-E/ST:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24FC04T-E/ST Tags
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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AT24CS02-SSHM-T
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93LC46BT-I/OT
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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