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Microchip Technology 24FC04T-E/OT36KVAO
- Part No.:
- 24FC04T-E/OT36KVAO
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- SC-74A, SOT-753
- Datasheet:
-
24FC04T-E/OT36KVAO.pdf
- Description:
- IC EEPROM 4KBIT I2C 1MHZ SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:1,953
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Product details
Overview
24FC04T-E/OT36KVAO 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 (WP), 16-byte page write buffer, and extended temperature operation from –40°C to +125°C. It is used for nonvolatile parameter storage in industrial sensor nodes and automotive body control modules.
For engineers reviewing the 24FC04T-E/OT36KVAO datasheet, 24FC04T-E/OT36KVAO pinout, 24FC04T-E/OT36KVAO application, or 24FC04T-E/OT36KVAO equivalent, this page delivers verified electrical specs, package mapping to 8-lead SOIC (OT), I²C timing compliance at 1 MHz, WP functionality behavior, and validated alternatives for drop-in replacement or design migration.
Technical Context
The 24FC04T-E/OT36KVAO implements a standard I²C slave interface with fixed 4-bit device code '1010', block-select bit B0, and R/W control-enabling access to either 256-byte memory block. Its internal address pointer auto-increments during sequential reads and wraps within page boundaries during page writes.
It features Schmitt-trigger inputs on SDA/SCL, output slope control to suppress ground bounce, and an internal HV generator for EEPROM programming. Write cycles are self-timed (max 5 ms), and acknowledge polling is supported to detect completion without fixed delay.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 4 Kbit (512 bytes), organized as two independent 256 × 8-bit blocks - enables isolated configuration storage per subsystem. |
| Interface | I²C-compatible 2-wire serial bus - requires only SDA and SCL lines with open-drain pull-ups; no additional protocol logic needed. |
| Max clock frequency | 1 MHz at VCC = 1.7–5.5 V - supports high-speed parameter updates in real-time systems without bus contention. |
| Write endurance | 1,000,000 erase/write cycles - ensures reliable field calibration data logging over 10+ years of daily use. |
| Data retention | Greater than 200 years at +25°C - guarantees long-term integrity of factory-trimmed coefficients and security keys. |
| Supply voltage range | 1.7 V to 5.5 V - interoperable with 1.8 V, 3.3 V, and 5 V microcontrollers without level-shifting. |
| Operating temperature | –40°C to +125°C (Extended grade) - qualified for under-hood automotive and industrial edge controller environments. |
Pinout & Package
24FC04T-E/OT36KVAO is packaged in an 8-lead SOIC (OT) with 3.90 mm body width, JEDEC MS-012AA compliant, and RoHS-compliant matte tin lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1, A2 | Not connected (NC) | No internal connection; may be left floating or tied to VSS/VCC with no functional impact. |
| VSS | Ground reference | Primary return path for all internal circuitry; must be low-impedance to ensure noise immunity during I²C communication. |
| WP | Hardware write-protect input | When pulled high to VCC, disables all write operations across full 000–1FF address space; read access remains fully functional. |
| SCL | Serial clock input | Master-generated synchronous clock; rising/falling edges define sampling windows for SDA transitions. |
| SDA | Bidirectional data line | Open-drain I/O requiring external pull-up; carries slave address, word address, and data; supports ACK/NACK signaling. |
| VCC | Power supply | Single supply input supporting 1.7–5.5 V; powers EEPROM array, logic, and charge pump; decoupling capacitor required. |
Key Features
| Feature | Design Value |
|---|---|
| 1 MHz I²C compatibility | Enables faster configuration loading vs. legacy 100/400 kHz EEPROMs - reduces boot time by up to 75% in firmware initialization sequences. |
| 16-byte page write buffer | Allows burst writes of up to 16 contiguous bytes per Stop condition - minimizes bus occupancy and improves throughput in multi-parameter updates. |
| Schmitt-trigger inputs | Provides >50 mV hysteresis on SDA/SCL - rejects EMI-induced glitches in noisy industrial or automotive harness environments. |
| Hardware write-protect (WP) | Physically disables write commands when WP = VCC - prevents accidental firmware corruption during field servicing or power-up transients. |
| 1 μA standby current (I-temp), 3 μA (E-temp) | Supports ultra-low-power sleep modes in battery-backed systems - extends shelf life of energy-harvesting sensor nodes by >3 years. |
Applications
| Industrial Sensor Calibration | Automotive Body Control Unit |
|---|---|
|
Use Scenario: Storing factory-calibrated offset/gain coefficients and linearization tables for analog sensor front-ends in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding trim values accessed at power-on reset via I²C before ADC initialization. Use Value: Eliminates need for external calibration hardware; enables field recalibration via service tool while preserving original factory settings. |
Use Scenario: Retaining seat position memory, mirror fold/unfold state, and lighting profiles across ignition cycles in door module ECUs. IC Role / Device Role / Timing Role: Dedicated parameter store interfaced to MCU's I²C peripheral; accessed during wake-up sequence after sleep mode exit. Use Value: Survives battery disconnect events; supports AEC-Q100 Grade 1 reliability requirements for 15-year vehicle lifetime. |
| Medical Device Configuration | Smart Energy Metering |
|
Use Scenario: Holding user-defined alarm thresholds, measurement units, and audit log enable flags in portable patient monitors. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage for clinical settings where regulatory traceability mandates immutable configuration history. Use Value: WP pin allows locking critical parameters post-certification; >200-year data retention satisfies FDA 21 CFR Part 11 archival requirements. |
Use Scenario: Recording tariff schedules, billing cycle counters, and tamper-event timestamps in DIN-rail mounted electricity meters. IC Role / Device Role / Timing Role: High-endurance backup storage synchronized with metrology IC registers during power-fail interrupt handling. Use Value: 1M-cycle endurance ensures >20 years of daily billing updates; 1.7 V operation maintains function during brown-out conditions. |
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/OT | Max clock 400 kHz; rated only for –40°C to +85°C; same 4-Kbit organization and pinout. | Not suitable for under-hood or extended-temperature industrial deployments requiring >85°C operation. | Select when cost sensitivity outweighs speed/temp requirements and ambient stays below 85°C. |
| 24LC04B-I/P | Min VCC = 2.5 V; max clock 400 kHz; no 1.7 V support; same memory map and WP functionality. | Cannot operate in 1.8 V systems or low-voltage brown-out scenarios where 24FC04T-E/OT36KVAO remains functional. | Choose only if system VCC is guaranteed ≥2.5 V and 1 MHz bandwidth is unnecessary. |
Compared with 24AA04T-I/OT and 24LC04B-I/P, the 24FC04T-E/OT36KVAO uniquely delivers 1 MHz I²C speed combined with extended temperature and 1.7 V operation - making it the sole option for high-reliability, low-voltage, high-throughput embedded storage where both performance and environmental robustness are mandatory.
Availability
24FC04T-E/OT36KVAO is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive body control units, medical device configuration, and smart energy metering requiring stable component supply across extended temperature and low-voltage operating conditions.
Supply support for 24FC04T-E/OT36KVAO 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, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 24FC04T-E/OT36KVAO belongs to Microchip's 24XX04 family of serial EEPROMs, designed specifically for reliable, low-power, I²C-based nonvolatile storage in automotive, industrial, and medical applications demanding extended temperature range and high endurance.
FAQ
What is the maximum I²C clock frequency supported by the 24FC04T-E/OT36KVAO?
The 24FC04T-E/OT36KVAO supports up to 1 MHz I²C clock frequency across its full 1.7 V to 5.5 V supply range. This is confirmed in Table 1-2 of DS20001708M, where FCLK is specified as 1000 kHz for VCC = 1.7–5.5 V. At lower voltages (<2.5 V), legacy devices like 24AA04 drop to 100 kHz, but 24FC04T-E/OT36KVAO maintains full 1 MHz capability - a key differentiator for high-speed parameter loading in time-critical systems.
Does the 24FC04T-E/OT36KVAO support hardware write protection, and how is it implemented?
Yes, the 24FC04T-E/OT36KVAO supports hardware write protection via the WP pin. When WP is tied to VCC, all write operations (byte and page) to the entire 000–1FF address space are inhibited; read operations remain fully functional. This behavior is documented in Section 2.4 and Figure 6-3 of DS20001708M. The WP pin is present and active in the OT (SOIC) package - unlike the CSP variant, which omits this feature.
What package type does the part number 24FC04T-E/OT36KVAO correspond to?
The "OT" suffix in 24FC04T-E/OT36KVAO explicitly denotes the 8-lead SOIC (Small Outline Integrated Circuit) package, 3.90 mm body width, per Microchip's packaging nomenclature in DS20001708M page 16. This matches JEDEC MS-012AA outline and is distinct from DFN, TSSOP, or PDIP variants. The full marking "24FC04" appears on the top surface, with "E" indicating Extended temperature grade and "T" denoting tape-and-reel packaging.
How many erase/write cycles can the 24FC04T-E/OT36KVAO endure, and what is the test condition?
The 24FC04T-E/OT36KVAO is rated for 1,000,000 erase/write cycles, as specified in Table 1-2 (Param. No. 18) of DS20001708M. This endurance value is characterized at 25°C and 5.5 V using page-mode writes. The datasheet notes this parameter is ensured by characterization (not 100% tested), and actual field endurance may vary with voltage, temperature, and write pattern - Microchip provides the Total Endurance™ Model for application-specific estimation.
Is the 24FC04T-E/OT36KVAO AEC-Q100 qualified, and for which stress grade?
Yes, the 24FC04T-E/OT36KVAO is AEC-Q100 qualified, as stated in the "Features" section of DS20001708M. It meets Grade 1 requirements (–40°C to +125°C), consistent with its Extended temperature rating. This qualification covers stress tests including HTOL, TCT, ESD, and AC/DC parametric limits - confirming suitability for automotive powertrain, chassis, and body electronics where reliability under thermal cycling and electrical stress is mandatory.
24FC04T-E/OT36KVAO Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- 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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
24FC04T-E/OT36KVAO FAQ
1.How can I place an order for 24FC04T-E/OT36KVAO through Aetrix?
Please submit a Request for Quotation (RFQ) for 24FC04T-E/OT36KVAO 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/OT36KVAO reliable?
The price and inventory of 24FC04T-E/OT36KVAO 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/OT36KVAO is usually 5 days.
3.What payment methods are accepted for 24FC04T-E/OT36KVAO?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24FC04T-E/OT36KVAO transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24FC04T-E/OT36KVAO?
24FC04T-E/OT36KVAO orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24FC04T-E/OT36KVAO 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/OT36KVAO?
For technical support, including 24FC04T-E/OT36KVAO datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24FC04T-E/OT36KVAO requirements.
6.How does Aetrix verify that 24FC04T-E/OT36KVAO is sourced from the original manufacturer or authorized distributors?
All 24FC04T-E/OT36KVAO 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/OT36KVAO meets industry standards.
7.What is the process for return or replacement of 24FC04T-E/OT36KVAO?
All 24FC04T-E/OT36KVAO units undergo pre-shipment inspection (PSI). If there is an issue with 24FC04T-E/OT36KVAO, 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/OT36KVAO part is unused and in its original packaging.
Return procedure for 24FC04T-E/OT36KVAO:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24FC04T-E/OT36KVAO Tags
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