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Microchip Technology 24FC04T-E/OT
- Part No.:
- 24FC04T-E/OT
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- SC-74A, SOT-753
- Datasheet:
-
24FC04T-E/OT.pdf
- Description:
- IC EEPROM 4KBIT I2C 1MHZ SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,508
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Product details
Overview
24FC04T-E/OT 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 16-byte page write buffer, hardware write-protection via WP pin, and extended temperature operation from –40°C to +125°C. It serves as nonvolatile configuration storage in automotive infotainment control modules.
For engineers reviewing the 24FC04T-E/OT datasheet, 24FC04T-E/OT pinout, 24FC04T-E/OT application, or 24FC04T-E/OT equivalent, this page delivers verified electrical specs, package-confirmed terminal roles, I²C timing compliance at 1 MHz, endurance (1M cycles), and data retention (>200 years) - all validated for AEC-Q100 Grade 1 automotive use.
Technical Context
The 24FC04T-E/OT 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 buffer enables efficient burst writes without host-side address management.
Write protection is implemented via a dedicated WP pin that disables all write operations when tied to VCC; no internal pull-up/pull-down is required on A0–A2 pins, which are unconnected. The device uses self-timed erase/write cycles with ACK polling support to maximize bus throughput during programming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4 Kbit (2 × 256 × 8-bit blocks), enabling dual-bank firmware parameter storage |
| Interface | I²C-compatible two-wire serial bus, fully compliant with standard-mode (100 kHz), fast-mode (400 kHz), and fast-mode plus (1 MHz) timing |
| Supply Voltage | 1.7V to 5.5V - supports direct connection to 1.8V, 2.5V, 3.3V, and 5V logic domains without level shifters |
| Page Write Buffer | 16 bytes - reduces I²C transaction count by up to 16× versus byte-write for contiguous data updates |
| Endurance & Retention | 1,000,000 erase/write cycles and >200 years data retention at +25°C - suitable for long-life industrial logging |
| Temperature Range | –40°C to +125°C (Extended grade) - qualified per AEC-Q100 Rev G for under-hood automotive applications |
| ESD Protection | >4,000V HBM - robust against handling and board-level ESD events in production environments |
Pinout & Package
24FC04T-E/OT is supplied in an 8-lead SOT-23 package (JEDEC MO-178AA), with body dimensions 2.9 mm × 1.6 mm × 1.1 mm and wettable flank leads for automated optical inspection (AOI). Pin 1 is SCL; pin 2 is VSS; pin 3 is SDA; pin 4 is WP; pin 5 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCL | Serial Clock Input | Asynchronous master-generated clock synchronizing all I²C transfers; requires external pull-up resistor |
| VSS | Ground Reference | Primary return path for all internal circuitry and I/O leakage currents; must be low-impedance |
| SDA | Bidirectional Data I/O | Open-drain bus line shared across multiple devices; requires external pull-up and supports multi-master arbitration |
| WP | Hardware Write-Protect | Logic-high disables all write operations (byte/page); no effect on reads - enables field-safe firmware lock |
| VCC | Power Supply | Single-supply input supporting 1.7V–5.5V; powers EEPROM array, control logic, and I/O buffers |
Key Features
| Feature | Design Value |
|---|---|
| 1 MHz I²C Operation | Enables high-speed configuration loading in time-critical boot sequences (e.g., ADAS sensor initialization) |
| Schmitt Trigger Inputs | Rejects bus noise up to 50 ns spikes - eliminates false Start/Stop detection in electrically noisy automotive harnesses |
| Self-Timed Write Cycle | Removes need for host-side timeout management; ACK polling allows deterministic completion detection |
| Factory Programming Support | Allows pre-loading of calibration data or security keys during wafer sort or final test - reduces post-solder programming steps |
| AEC-Q100 Qualified | Validated for automotive Grade 1 (–40°C to +125°C) including HTOL, TCT, and ESD stress tests - meets OEM Tier-1 requirements |
Applications
| Automotive Body Control Module | Industrial PLC Configuration Storage |
|---|---|
Use Scenario: Storing door lock actuator calibration offsets and seat position memory across ignition cycles. IC Role / Device Role / Timing Role: Nonvolatile parameter storage accessed during power-on reset via I²C at 400 kHz. Use Value: Enables zero-latency recall of user preferences without battery-backed SRAM; WP pin prevents accidental overwrites during CAN diagnostics. |
Use Scenario: Holding ladder logic configuration and I/O mapping tables for modular I/O expansion cards. IC Role / Device Role / Timing Role: Dual-block EEPROM providing independent storage for firmware version metadata and runtime counters. Use Value: Supports field firmware updates with atomic rollback - block-select bit (B0) isolates active/inactive configuration banks. |
| Medical Infusion Pump Calibration | Smart Energy Meter Tamper Logs |
Use Scenario: Recording flow sensor calibration coefficients and maintenance timestamps traceable to ISO 13485 audit trails. IC Role / Device Role / Timing Role: Secure, write-protected storage accessed only during service mode via authenticated I²C commands. Use Value: Hardware WP pin ensures calibration data integrity even if MCU firmware is compromised; >200-year retention satisfies regulatory archival requirements. |
Use Scenario: Logging meter tamper events (cover removal, magnetic interference) with time-stamped sequence numbers. IC Role / Device Role / Timing Role: High-endurance EEPROM storing cyclic event records using page-write to minimize wear on critical sectors. Use Value: 1M-cycle endurance enables >10 years of daily tamper logging at 300 events/year; 16-byte page buffer reduces I²C overhead by 87% vs. byte writes. |
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; operates down to 1.7V but rated only for –40°C to +85°C (Industrial grade) | Not AEC-Q100 qualified; unsuitable for under-hood or engine bay placement | Select only for cost-sensitive consumer or industrial applications where 125°C operation is unnecessary |
| AT24C04D-SSHM-T | Same 4-Kbit size and I²C interface, but max clock 1 MHz only at ≥2.5V; standby current 5 µA (vs. 3 µA for 24FC04T-E/OT at E-temp) | Lower ESD rating (2 kV HBM); not AEC-Q100 qualified | Acceptable for commercial-grade IoT gateways, but lacks automotive qualification and extended temp margin |
Compared with 24AA04T-I/OT and AT24C04D-SSHM-T, the 24FC04T-E/OT uniquely combines 1 MHz I²C speed at 1.7V, AEC-Q100 Grade 1 qualification, and 3 µA standby current at +125°C - making it the only drop-in option for high-reliability automotive and industrial edge nodes requiring fast, robust nonvolatile storage.
Availability
24FC04T-E/OT is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial programmable logic controllers, and medical infusion pump calibration storage requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 24FC04T-E/OT 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 manufacturing and support infrastructure.
The 24FC04T-E/OT belongs to Microchip's 24XX04 family of I²C EEPROMs, designed specifically for automotive and industrial applications demanding extended temperature operation, high reliability, and seamless integration with microcontroller I²C peripherals.
FAQ
What is the maximum I²C clock frequency supported by the 24FC04T-E/OT?
The 24FC04T-E/OT 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 = 1000 kHz is specified for 24FC04 under extended temperature conditions. At lower voltages (<2.5V), timing parameters adjust accordingly but remain functional.
Does the 24FC04T-E/OT require external pull-up resistors on SDA and SCL lines?
Yes, the 24FC04T-E/OT requires external pull-up resistors on both SDA and SCL lines because its I/O pins are open-drain. Section 2.2 of DS20001708P specifies typical values of 2 kΩ for 1 MHz operation. The exact value depends on bus capacitance and desired rise time, but 2 kΩ is recommended for reliable 1 MHz signaling in most designs using the 24FC04T-E/OT.
How does the WP pin function on the 24FC04T-E/OT?
The WP (Write-Protect) pin on the 24FC04T-E/OT disables all write operations - including byte and page writes - when held at VCC. When tied to VSS, full read/write access is enabled. This hardware-level protection is active regardless of I²C command state and is documented in Section 2.4 and Figure 6-1 of DS20001708P. No software lock is needed for the 24FC04T-E/OT.
Is the 24FC04T-E/OT AEC-Q100 qualified, and what grade does it meet?
Yes, the 24FC04T-E/OT is AEC-Q100 qualified per Rev G, meeting Grade 1 requirements for operation from –40°C to +125°C. This is explicitly stated in the "Features" section of DS20001708P and confirmed in the Device Selection Table. The "E" suffix in the part number denotes Extended temperature grade, aligning with AEC-Q100 Grade 1.
What is the page write capability of the 24FC04T-E/OT, and how does it affect memory addressing?
The 24FC04T-E/OT features a 16-byte page write buffer, allowing up to 16 contiguous bytes to be written in a single I²C transaction. Page boundaries start at addresses divisible by 16 (e.g., 0x00, 0x10); crossing a boundary causes wraparound within the same page. This behavior is defined in Section 6.2 and Figure 6-2 of DS20001708P and applies identically to all 24FC04T-E/OT units.
24FC04T-E/OT 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:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
24FC04T-E/OT FAQ
1.How can I place an order for 24FC04T-E/OT through Aetrix?
Please submit a Request for Quotation (RFQ) for 24FC04T-E/OT 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/OT reliable?
The price and inventory of 24FC04T-E/OT 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/OT is usually 5 days.
3.What payment methods are accepted for 24FC04T-E/OT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24FC04T-E/OT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24FC04T-E/OT?
24FC04T-E/OT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24FC04T-E/OT 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/OT?
For technical support, including 24FC04T-E/OT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24FC04T-E/OT requirements.
6.How does Aetrix verify that 24FC04T-E/OT is sourced from the original manufacturer or authorized distributors?
All 24FC04T-E/OT 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/OT meets industry standards.
7.What is the process for return or replacement of 24FC04T-E/OT?
All 24FC04T-E/OT units undergo pre-shipment inspection (PSI). If there is an issue with 24FC04T-E/OT, 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/OT part is unused and in its original packaging.
Return procedure for 24FC04T-E/OT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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