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Microchip Technology 24FC08T-E/OT36KVAO
- Part No.:
- 24FC08T-E/OT36KVAO
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- SC-74A, SOT-753
- Datasheet:
-
24FC08T-E/OT36KVAO.pdf
- Description:
- IC EEPROM 8KBIT I2C 1MHZ SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:2,891
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Product details
Overview
24FC08T-E/OT36KVAO from Microchip Technology Inc. is an 8-Kbit I²C-compatible serial EEPROM organized as four 256 × 8-bit blocks, supporting 1 MHz clock operation down to 1.7V supply, with 16-byte page write buffer and hardware write-protect (WP) pin. It operates across –40°C to +125°C and is AEC-Q100 qualified for automotive use.
For engineers reviewing the 24FC08T-E/OT36KVAO datasheet, 24FC08T-E/OT36KVAO pinout, 24FC08T-E/OT36KVAO application, or 24FC08T-E/OT36KVAO equivalent, key selection factors include its extended temperature support, 1 MHz I²C speed at 1.7V–5.5V, 5 ms max page write time, 1 μA standby current (I-temp), and 3 μA standby current (E-temp).
Technical Context
The 24FC08T-E/OT36KVAO implements a two-wire I²C slave 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 within physical page boundaries (0x00–0x0F per block).
Write protection is controlled via the dedicated WP pin: tied to VSS for full read/write access, or to VCC to inhibit all writes while preserving read functionality. Acknowledge polling is supported to detect write cycle completion without fixed delays, improving bus utilization in time-critical systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Kbit (1024 × 8), organized as four independent 256-word blocks for flexible block-level addressing |
| Interface | I²C-compatible 2-wire serial bus with 1 MHz max clock (1.7V–5.5V), supporting standard/fast/high-speed timing modes |
| Supply Voltage | 1.7V to 5.5V - enables direct integration with ultra-low-voltage microcontrollers and battery-powered systems |
| Write Cycle Time | ≤5 ms (byte or page) - enables rapid nonvolatile storage updates without blocking host CPU for extended periods |
| Endurance & Retention | 1 million erase/write cycles; >200 years data retention - suitable for firmware logging, calibration storage, and configuration backup |
| Temperature Range | –40°C to +125°C (Extended grade) - validated for under-hood automotive, industrial control, and high-ambient environments |
| Standby Current | 3 μA max at E-temp - minimizes quiescent power in always-on systems such as telematics and sensor nodes |
Pinout & Package
24FC08T-E/OT36KVAO is packaged in an 8-lead SOIC (SN) with 3.90 mm body width, JEDEC MS-012AA compliant, and marked "24FC08" on top. The exposed pad is not present in this variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSS | Ground reference | Return path for all internal circuitry; must be connected to system GND with low-impedance trace |
| WP | Hardware write-protect input | Logic-high disables all write operations; logic-low enables full read/write access - no external pull-up required |
| SCL | Serial clock input | Master-generated clock synchronizing all I²C transactions; requires external pull-up resistor (2 kΩ typical for 1 MHz) |
| SDA | Serial data bidirectional I/O | Open-drain bus line shared among multiple devices; requires same pull-up as SCL and supports multi-master arbitration |
| VCC | Power supply | 1.7V–5.5V tolerant supply rail; decoupling capacitor (0.1 μF ceramic) recommended within 5 mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| 1 MHz I²C operation at 1.7V | Enables high-speed configuration storage in energy-constrained systems without level-shifting circuitry |
| 16-byte page write buffer | Reduces I²C transaction overhead by up to 16× vs. byte-write mode, accelerating bulk parameter updates |
| Schmitt-trigger inputs & slope control | Ensures robust communication on noisy PCBs or long traces without external signal conditioning |
| AEC-Q100 qualified (Grade 1) | Validated for automotive applications including infotainment, ADAS sensors, and body control modules |
| Factory programming option | Supports pre-loading of calibration data, MAC addresses, or security keys during manufacturing - reduces post-silicon programming steps |
Applications
| Automotive Telematics Unit | Industrial PLC Configuration Storage |
|---|---|
Use Scenario: Storing GPS firmware patches, SIM credentials, and cellular module calibration data in a vehicle-mounted telematics control unit. IC Role / Device Role / Timing Role: Nonvolatile configuration memory accessed via I²C during boot and runtime; retains data across ignition cycles. Use Value: 125°C rating ensures reliability in hot under-dash environments; 1 MHz interface allows fast OTA update staging without delaying boot sequence. | Use Scenario: Holding user-defined I/O mapping tables, PID tuning parameters, and alarm thresholds in a DIN-rail mounted programmable logic controller. IC Role / Device Role / Timing Role: Persistent parameter store updated only when configuration changes; read frequently during scan cycle execution. Use Value: 1 million endurance cycles support decades of field reconfiguration; hardware WP prevents accidental corruption during firmware upgrades. |
| Medical Sensor Calibration | Smart Energy Meter Firmware Log |
Use Scenario: Recording factory-calibrated offset/gain coefficients and sensor drift compensation values for portable blood glucose or pulse oximetry sensors. IC Role / Device Role / Timing Role: Read-once-at-boot memory holding precision analog calibration constants; write-only during initial calibration or recalibration events. Use Value: >200-year data retention guarantees accuracy over product lifetime; 1.7V operation enables direct interface with low-power ADCs and microcontrollers. | Use Scenario: Logging firmware version rollbacks, tamper detection timestamps, and metering error counters in ANSI C12.22-compliant smart electricity meters. IC Role / Device Role / Timing Role: Secure event log storage with write-protection enabled during normal operation to prevent unauthorized modification. Use Value: WP pin allows hardware-enforced immutability of critical logs; 3 μA E-temp standby current extends battery life in backup-powered meters. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA08T-I/OT | Max clock 400 kHz (1.7V–5.5V); 1 μA standby (I-temp only); no AEC-Q100 qualification | Limited to commercial/industrial ambient (–40°C to +85°C); unsuitable for under-hood or high-reliability deployments | Select only if 1 MHz speed and automotive qualification are unnecessary and cost is primary constraint |
| AT24C08D-SSHM-T | 1 MHz I²C, 1.7V–5.5V, but rated only to +85°C; no AEC-Q100; different pinout (SOT-23-5) | Requires PCB redesign due to 5-pin SOT-23 package and missing WP pin; lacks extended temperature validation | Consider only for space-constrained consumer designs where automotive compliance and WP control are not required |
Compared with 24AA08T-I/OT and AT24C08D-SSHM-T, the 24FC08T-E/OT36KVAO uniquely delivers 1 MHz performance across –40°C to +125°C with hardware write-protect and AEC-Q100 Grade 1 validation - making it the only choice for automotive and high-ambient industrial firmware storage where speed, reliability, and security are co-dependent.
Availability
24FC08T-E/OT36KVAO is available at Aetrix Electronics and suitable for automotive telematics, industrial PLCs, medical sensor calibration, and smart energy metering requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for 24FC08T-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, serving automotive, industrial, consumer, and communications markets with high-reliability silicon and development tools.
The 24FC08 belongs to Microchip's 24XX08 family of I²C EEPROMs designed specifically for robust, low-power, extended-temperature nonvolatile storage in automotive and industrial edge devices where data integrity and long-term retention are mission-critical.
FAQ
What is the maximum I²C clock frequency supported by the 24FC08T-E/OT36KVAO?
The 24FC08T-E/OT36KVAO 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 the Device Selection Table and AC Characteristics section of DS20001710L, distinguishing it from the 24AA08 (max 400 kHz) and 24LC08B (max 400 kHz, min 2.5V). The 24FC08T-E/OT36KVAO achieves this speed without requiring higher VCC.
Does the 24FC08T-E/OT36KVAO support hardware write protection?
Yes, the 24FC08T-E/OT36KVAO includes a dedicated Write-Protect (WP) pin (Pin 7 in SOIC). When tied to VCC, the entire 8-Kbit memory array (addresses 0x000–0x3FF) is write-inhibited while reads remain fully functional. This feature is documented in Section 2.4 and Figure 6-3 of DS20001710L and applies to the SOIC package variant 24FC08T-E/OT36KVAO.
What is the page size and write buffer depth of the 24FC08T-E/OT36KVAO?
The 24FC08T-E/OT36KVAO has a 16-byte page write buffer and enforces physical page boundaries aligned to 16-byte offsets (e.g., 0x00–0x0F, 0x10–0x1F). This is explicitly stated in Section 6.2 and Figure 6-2 of DS20001710L. Attempting to cross a page boundary during page write causes wraparound within the current page - a behavior critical for firmware developers to manage in block-oriented updates.
Is the 24FC08T-E/OT36KVAO qualified for automotive applications?
Yes, the 24FC08T-E/OT36KVAO is AEC-Q100 qualified (Grade 1) for automotive use, as confirmed in the Features list on page 1 of DS20001710L. Its extended temperature range (–40°C to +125°C), 1 MHz I²C capability at 1.7V, and robust noise suppression make it suitable for engine control units, ADAS sensors, and telematics modules where reliability under thermal stress is mandatory.
What packages are available for the 24FC08 part number, and which one is used in 24FC08T-E/OT36KVAO?
The 24FC08 is offered in MSOP, PDIP, SOIC, TSSOP, and TDFN packages. Per the Device Selection Table on page 1 of DS20001710L, the SOIC (SN) package is explicitly listed for 24FC08. The suffix "T-E/OT36KVAO" confirms the SOIC-8 (3.90 mm body) variant with Extended temperature grade and tape-and-reel packaging - matching Microchip's standard SOIC marking and footprint.
24FC08T-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:
- 8Kbit
- Memory Organization:
- 1K x 8
- 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
24FC08T-E/OT36KVAO FAQ
1.How can I place an order for 24FC08T-E/OT36KVAO through Aetrix?
Please submit a Request for Quotation (RFQ) for 24FC08T-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 24FC08T-E/OT36KVAO reliable?
The price and inventory of 24FC08T-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 24FC08T-E/OT36KVAO is usually 5 days.
3.What payment methods are accepted for 24FC08T-E/OT36KVAO?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24FC08T-E/OT36KVAO transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24FC08T-E/OT36KVAO?
24FC08T-E/OT36KVAO orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24FC08T-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 24FC08T-E/OT36KVAO?
For technical support, including 24FC08T-E/OT36KVAO datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24FC08T-E/OT36KVAO requirements.
6.How does Aetrix verify that 24FC08T-E/OT36KVAO is sourced from the original manufacturer or authorized distributors?
All 24FC08T-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 24FC08T-E/OT36KVAO meets industry standards.
7.What is the process for return or replacement of 24FC08T-E/OT36KVAO?
All 24FC08T-E/OT36KVAO units undergo pre-shipment inspection (PSI). If there is an issue with 24FC08T-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 24FC08T-E/OT36KVAO part is unused and in its original packaging.
Return procedure for 24FC08T-E/OT36KVAO:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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