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Microchip Technology 24FC04-E/MS
- Part No.:
- 24FC04-E/MS
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
24FC04-E/MS.pdf
- Description:
- IC EEPROM 4KBIT I2C 1MHZ 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:870
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Product details
Overview
24FC04-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 operation down to 1.7V supply, with hardware write-protection, 16-byte page write buffer, and extended temperature range (–40°C to +125°C). It serves as nonvolatile configuration storage in automotive body control modules.
For engineers reviewing the 24FC04-E/MS datasheet, 24FC04-E/MS pinout, 24FC04-E/MS application, or 24FC04-E/MS equivalent, this page delivers verified electrical specs, package mapping to MSOP-8, I²C timing compliance at 1 MHz, endurance (1M cycles), and real-world use context for industrial and AEC-Q100-compliant designs.
Technical Context
The 24FC04-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 architecture includes a 16-byte page latch, HV generator for EEPROM programming, and address pointer logic enabling current-address, random, and sequential read modes.
It supports full I²C protocol compliance-including Start/Stop condition generation, ACK polling during write cycles, and block-select addressing via B0 bit-while operating across 1.7V–5.5V with guaranteed 1 MHz AC performance over –40°C to +125°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4 Kbit (2 × 256 × 8-bit blocks), enabling dual-bank configuration storage without external multiplexing |
| Interface | I²C-compatible two-wire bus, compatible with standard microcontroller I²C peripherals without level-shifting at 1.7V–5.5V |
| Max Clock Frequency | 1 MHz (at VCC = 1.7V–5.5V), doubling throughput vs. 400 kHz variants for high-speed parameter logging |
| Write Cycle Time | 5 ms maximum (byte or page), enabling deterministic firmware update latency in safety-critical systems |
| Endurance | 1,000,000 erase/write cycles, supporting >10 years of daily reconfiguration in industrial HMI applications |
| Data Retention | 200 years at +25°C, ensuring long-term calibration data integrity in unpowered automotive ECUs |
| Operating Temp | –40°C to +125°C (Extended grade), qualified per AEC-Q100 for under-hood automotive use |
Pinout & Package
24FC04-E/MS is packaged in an 8-lead MSOP (Micro Small Outline Package) with 0.65 mm pitch, 3.0 mm × 3.0 mm body, and wettable flanks for automated optical inspection. 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 operation |
| A1 | Address Input | No internal connection; unused in 24FC04 family; no impact on device addressing |
| A2 | Address Input | No internal connection; not bonded; zero-cost routing flexibility on PCB |
| VSS | Ground | Reference return path for all I/O and core logic; 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; Schmitt-trigger input rejects noise |
| WP | Write-Protect Input | Hardware lock: tie to VCC to disable all writes while permitting unlimited reads |
| VCC | Power Supply | 1.7V–5.5V single supply; enables direct interfacing with 1.8V, 2.5V, 3.3V, or 5V host systems |
Key Features
| Feature | Design Value |
|---|---|
| 1 MHz I²C Operation | Enables 2.5× faster parameter writes vs. 400 kHz EEPROMs, reducing boot-time configuration load by milliseconds |
| 16-Byte Page Write Buffer | Allows atomic multi-byte updates within one Stop condition, preventing partial-write corruption during power loss |
| Hardware Write-Protection (WP) | Physically disables write operations when WP = VCC, eliminating software vulnerability in field-deployed devices |
| Schmitt Trigger Inputs | Provides >50 mV hysteresis on SDA/SCL, rejecting ESD-induced glitches and bus noise in automotive environments |
| AEC-Q100 Qualified | Validated for automotive use including temperature cycling, humidity testing, and mechanical shock per Grade 1 requirements |
Applications
| Automotive Body Control Unit | Industrial PLC Configuration Storage |
|---|---|
Use Scenario: Storing door lock settings, mirror position presets, and lighting profiles in a vehicle body control module subject to wide temperature swings and EMI. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding user-defined parameters accessible via I²C during MCU boot and runtime. Use Value: 125°C rating ensures reliability under hood; 1 MHz interface allows fast recall of 32+ settings before CAN bus initialization completes. | Use Scenario: Retaining I/O mapping, scaling coefficients, and alarm thresholds in programmable logic controllers deployed in factory automation cabinets. IC Role / Device Role / Timing Role: Persistent memory for field-serviceable calibration data, updated only during maintenance windows. Use Value: Hardware WP pin prevents accidental overwrite during firmware updates; 1M-cycle endurance supports 20+ years of recalibration events. |
| Medical Infusion Pump Calibration | Smart Energy Meter Firmware Parameters |
Use Scenario: Holding flow-rate calibration constants and safety limits in battery-powered infusion pumps requiring FDA-grade data integrity. IC Role / Device Role / Timing Role: Tamper-resistant storage for critical dosing parameters, accessed only by authenticated host MCU during self-test. Use Value: 200-year data retention guarantees calibration validity across product lifetime; RoHS compliance meets medical regulatory requirements. | Use Scenario: Storing tariff schedules, metering constants, and communication keys in utility-grade smart meters exposed to outdoor thermal stress. IC Role / Device Role / Timing Role: Secure, low-power nonvolatile memory for cryptographic keys and billing parameters updated infrequently over PLC or RF links. Use Value: 1.7V operation enables reliable writes during brown-out conditions; ESD >4 kV protects against handling damage in field installations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA04-I/MS | Max clock 400 kHz; operates down to 1.7V but limited to industrial temp (–40°C to +85°C) | Not AEC-Q100 qualified; unsuitable for under-hood automotive or extended-temperature industrial deployments | Select only if cost sensitivity outweighs speed and extended temperature needs |
| AT24C04D-MAHM-T | Same 4-Kbit size and MSOP-8 package; max clock 1 MHz; but rated only to +85°C and lacks AEC-Q100 qualification | Lower qualification scope limits use to commercial/industrial consumer electronics, not automotive or harsh-environment systems | Choose when automotive qualification is unnecessary and Microchip ecosystem integration is not required |
Compared with 24AA04-I/MS and AT24C04D-MAHM-T, the 24FC04-E/MS uniquely combines 1 MHz speed, –40°C to +125°C operation, and AEC-Q100 qualification-making it the sole option for time-critical, high-reliability automotive EEPROM applications requiring extended temperature resilience.
Availability
24FC04-E/MS is available at Aetrix Electronics and suitable for automotive body control units, industrial PLC configuration storage, medical infusion pump calibration, and smart energy meter firmware parameters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 24FC04-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 24FC04 belongs to Microchip's 24XX04 family of I²C serial EEPROMs engineered specifically for automotive, industrial, and medical applications demanding extended temperature operation, high-speed interface, and robust data integrity.
FAQ
What is the maximum I²C clock frequency supported by the 24FC04-E/MS?
The 24FC04-E/MS supports up to 1 MHz I²C clock frequency across its full 1.7V–5.5V supply range and –40°C to +125°C operating temperature. This is confirmed in Table 1-2 of DS20001708P, where FCLK is specified as 1000 kHz for 1.7V ≤ VCC ≤ 5.5V. Unlike the 24AA04 or 24LC04B, the 24FC04-E/MS maintains this speed even at minimum 1.7V supply.
Does the 24FC04-E/MS require external pull-up resistors on SDA and SCL lines?
Yes, the 24FC04-E/MS requires external pull-up resistors on both SDA and SCL lines because its I/O pins are open-drain. The datasheet specifies 2 kΩ as typical for 1 MHz operation. Pull-up values must be selected based on bus capacitance and desired rise time; incorrect values can cause timing violations or bus lockup during high-speed transfers.
How does hardware write-protection work on the 24FC04-E/MS?
The WP pin on the 24FC04-E/MS provides hardware-level write inhibition: when tied to VCC, all write operations (byte and page) are blocked while read operations remain fully functional. This is implemented internally-no software command or timing sequence overrides it. Tying WP to VSS enables normal read/write access. The feature is active across the full temperature and voltage range.
Is the 24FC04-E/MS AEC-Q100 qualified, and what grade does it meet?
Yes, the 24FC04-E/MS is AEC-Q100 qualified per the "Automotive AEC-Q100 Qualified" feature listed in DS20001708P. It meets Grade 1 requirements (–40°C to +125°C), validated through stress testing including temperature cycling, humidity bias, and mechanical shock-making it suitable for under-hood automotive applications where the 24FC04-E/MS is deployed.
What is the page write buffer size of the 24FC04-E/MS, and how does it affect write efficiency?
The 24FC04-E/MS features a 16-byte page write buffer, allowing up to 16 bytes to be loaded into the on-chip latch and written to memory in a single internal cycle. This reduces total write time versus byte-by-byte writes and enables atomic updates of related parameters-critical for avoiding inconsistent states during power interruption. Page boundaries align to 16-byte offsets (0x00–0x0F, 0x10–0x1F, etc.).
24FC04-E/MS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- 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
24FC04-E/MS FAQ
1.How can I place an order for 24FC04-E/MS through Aetrix?
Please submit a Request for Quotation (RFQ) for 24FC04-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 24FC04-E/MS reliable?
The price and inventory of 24FC04-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 24FC04-E/MS is usually 5 days.
3.What payment methods are accepted for 24FC04-E/MS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24FC04-E/MS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24FC04-E/MS?
24FC04-E/MS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24FC04-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 24FC04-E/MS?
For technical support, including 24FC04-E/MS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24FC04-E/MS requirements.
6.How does Aetrix verify that 24FC04-E/MS is sourced from the original manufacturer or authorized distributors?
All 24FC04-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 24FC04-E/MS meets industry standards.
7.What is the process for return or replacement of 24FC04-E/MS?
All 24FC04-E/MS units undergo pre-shipment inspection (PSI). If there is an issue with 24FC04-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 24FC04-E/MS part is unused and in its original packaging.
Return procedure for 24FC04-E/MS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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