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Microchip Technology 24FC01-E/SN36KVAO
- Part No.:
- 24FC01-E/SN36KVAO
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
24FC01-E/SN36KVAO.pdf
- Description:
- IC EEPROM 1KBIT I2C 1MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,750
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Product details
Overview
24FC01-E/SN36KVAO from Microchip Technology Inc. is a 1 Kbit I²C-compatible serial EEPROM organized as 128 × 8-bit memory, supporting 1 MHz clock frequency at 1.7V–5.5V supply, with hardware write-protection, 8-byte page buffer, and extended temperature operation to +125°C. It serves as nonvolatile configuration storage in automotive body control modules, industrial sensor nodes, and embedded power management systems.
For engineers reviewing the 24FC01-E/SN36KVAO datasheet, 24FC01-E/SN36KVAO pinout, 24FC01-E/SN36KVAO application, or 24FC01-E/SN36KVAO equivalent, key selection criteria include its 1 MHz I²C speed at low voltage, E-temp grade (-40°C to +125°C), SOIC-8 package with exposed pad (SN variant), and guaranteed 1 million write cycles with >200-year data retention.
Technical Context
The 24FC01-E/SN36KVAO implements a standard I²C slave interface with fixed 7-bit address prefix '1010', no A0–A2 pin dependency, and Schmitt-triggered SDA/SCL inputs for noise immunity. Its internal architecture includes an 8-byte page latch, HV generator for EEPROM programming, and automatic self-timed erase/write cycles.
Write protection is implemented via dedicated WP pin-tied high to VCC to disable all writes across the full 00h–7Fh address space while permitting reads. Acknowledge polling is supported to detect write completion without fixed delay timing, enabling efficient bus utilization in real-time systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1 Kbit (128 × 8-bit) - sufficient for firmware version IDs, calibration coefficients, or device-specific configuration registers. |
| Interface | I²C (2-wire serial) - compatible with standard microcontroller I²C peripherals; no additional protocol translation required. |
| Max Clock Frequency | 1 MHz at 1.7V–5.5V - enables faster configuration loading than 400 kHz EEPROMs, reducing boot time in time-critical applications. |
| Supply Voltage Range | 1.7V to 5.5V - supports direct interfacing with 1.8V, 3.3V, and 5V logic domains without level shifters. |
| Temperature Range | -40°C to +125°C (Extended grade) - qualified for under-hood automotive and industrial edge environments. |
| Endurance & Retention | 1,000,000 write cycles / >200 years data retention - ensures long-term reliability in field-deployed devices with frequent parameter updates. |
| Page Write Buffer | 8 bytes - allows burst writes within a single page boundary (00h–07h, 08h–0Fh, etc.), improving efficiency over byte-write-only devices. |
Pinout & Package
24FC01-E/SN36KVAO uses the 8-lead SOIC package (SN suffix), 3.90 mm body width, with exposed thermal pad (KVAO designation per Microchip marking convention). Pin 1 is A0 (NC), pin 4 is VSS, pin 5 is SDA, pin 6 is SCL, pin 7 is WP, and pin 8 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1, A2 | No-connect (NC) | Internally unconnected; may be left floating or tied to VSS/VCC with no functional impact - simplifies PCB layout and eliminates address conflict concerns. |
| VSS | Ground reference | Must be connected to system ground plane; provides return path for SDA pull-up current and internal logic. |
| SDA | Serial Data I/O | Open-drain bidirectional line requiring external pull-up (2 kΩ typical for 1 MHz); carries address, data, and ACK/NACK signals. |
| SCL | Serial Clock input | Master-generated clock; rising edge samples data, falling edge allows data change - must meet min THIGH/TLOW timing per AC specs. |
| WP | Write-Protect control | Active-high enable: tied to VCC blocks all writes (00h–7Fh); tied to VSS enables full read/write access - used for field firmware lock-down. |
| VCC | Power supply | Accepts 1.7V–5.5V; powers internal charge pump for EEPROM programming - stable regulation critical during write cycles. |
Key Features
| Feature | Design Value |
|---|---|
| 1 MHz I²C operation down to 1.7V | Enables high-speed configuration loading in battery-powered or low-voltage microcontroller systems without performance penalty. |
| Schmitt-trigger inputs + noise filtering | Rejects bus transients up to 50 ns spike width, ensuring reliable communication in electrically noisy automotive or industrial settings. |
| Hardware write-protection (WP pin) | Provides tamper-resistant storage for critical parameters (e.g., security keys, calibration offsets) without software overhead or fuse blowing. |
| 8-byte page write buffer | Reduces I²C transaction count by up to 8× versus byte-write mode, lowering CPU load and bus occupancy in firmware update routines. |
| AEC-Q100 qualified (Grade 1) | Validated for automotive use including thermal cycling, vibration, and ESD stress - meets requirements for body electronics and ADAS subsystems. |
Applications
| Automotive Body Control Unit | Industrial Sensor Node |
|---|---|
|
Use Scenario: Storing vehicle-specific configuration (door lock logic, mirror position presets, lighting profiles) that persists across ignition cycles. IC Role / Device Role: Nonvolatile configuration register bank accessed via I²C during MCU boot sequence. Use Value: Enables plug-and-play replacement of ECUs without reprogramming; 125°C rating supports placement near HVAC or lighting drivers. |
Use Scenario: Recording calibration coefficients, sensor offset values, and last-known state in wireless temperature/humidity nodes deployed in factory environments. IC Role / Device Role: Field-programmable parameter store updated during commissioning or maintenance via host MCU. Use Value: Eliminates need for external calibration EEPROM in compact sensor modules; 1 µA standby current extends battery life. |
| Smart Power Supply Monitor | Medical Diagnostic Equipment |
|
Use Scenario: Logging fault history, overvoltage/overcurrent event timestamps, and user-defined trip thresholds in programmable DC supplies. IC Role / Device Role: Event logger and persistent settings storage interfaced to supply controller's I²C port. Use Value: Survives AC power loss; 1 million endurance supports daily logging over 10+ years without wear-out concern. |
Use Scenario: Storing device serial number, manufacturing date, calibration validity period, and user language preference in portable diagnostic tools. IC Role / Device Role: Secure identity and compliance metadata storage accessible only by authenticated host MCU. Use Value: Meets IEC 62304 traceability requirements; WP pin prevents accidental overwrite of regulatory-critical fields. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA01-I/SN | Max I²C speed 400 kHz (100 kHz below 2.5V); same 1.7V–5.5V range and 125°C rating not supported - rated only to +85°C. | Not suitable for automotive under-hood or high-temperature industrial enclosures where 125°C operation is required. | Select only if system clock budget permits slower I²C and ambient temperature stays ≤85°C. |
| AT24C01D-SSHM-T | 1 MHz capable but requires ≥2.5V VCC; no 1.7V operation; endurance rated at 400k cycles (vs. 1M for 24FC01); different WP polarity (active-low). | Lacks low-voltage compatibility and long-term endurance needed for battery-backed or high-cycle-count field updates. | Consider only for 3.3V/5V-only designs where cost is primary and write-cycle longevity is secondary. |
Compared with 24AA01-I/SN and AT24C01D-SSHM-T, the 24FC01-E/SN36KVAO uniquely delivers 1 MHz I²C speed across the full 1.7V–5.5V range with extended temperature support and industry-leading endurance - making it the optimal choice for next-generation automotive and industrial edge devices requiring robust, high-throughput nonvolatile storage.
Availability
24FC01-E/SN36KVAO is available at Aetrix Electronics and suitable for automotive body control units, industrial sensor nodes, smart power supply monitors, and medical diagnostic equipment requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 24FC01-E/SN36KVAO 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, serving automotive, industrial, consumer, and communications markets with high-reliability silicon and development tools.
The 24FC01 belongs to Microchip's 24XX01 family of I²C serial EEPROMs, designed specifically for low-power, high-reliability nonvolatile data storage in space-constrained embedded systems operating across harsh environmental conditions.
FAQ
What is the maximum I²C clock frequency supported by the 24FC01-E/SN36KVAO?
The 24FC01-E/SN36KVAO supports up to 1 MHz I²C clock frequency across its full 1.7V–5.5V supply range. This is confirmed in the Device Selection Table and AC Characteristics section of DS20001711L, distinguishing it from the 24AA01 (400 kHz max) and 24LC01B (400 kHz, 2.5V minimum). The 24FC01-E/SN36KVAO maintains this speed even at 1.7V, enabling faster configuration reads in low-voltage applications.
Does the 24FC01-E/SN36KVAO require external pull-up resistors on SDA and SCL lines?
Yes, the 24FC01-E/SN36KVAO requires external pull-up resistors on both SDA and SCL lines because its I²C interface uses open-drain outputs. The datasheet recommends 2 kΩ for 1 MHz operation, 10 kΩ for 100 kHz. These resistors ensure proper signal rise times and bus contention handling, especially critical when multiple slaves share the same I²C bus.
How does the WP pin function on the 24FC01-E/SN36KVAO?
The WP (Write-Protect) pin on the 24FC01-E/SN36KVAO is active-high: when tied to VCC, it disables all write operations to the entire memory array (addresses 00h–7Fh), while read operations remain fully functional. When tied to VSS or left floating, normal read/write access is enabled. This hardware-level protection prevents accidental or malicious firmware corruption without software intervention.
Is the 24FC01-E/SN36KVAO AEC-Q100 qualified?
Yes, the 24FC01-E/SN36KVAO is explicitly listed as AEC-Q100 qualified in the Features section of DS20001711L. It meets Grade 1 requirements (−40°C to +125°C), including stress testing for temperature cycling, humidity, and ESD - confirming suitability for automotive powertrain, chassis, and body electronics applications.
What package type does the part number 24FC01-E/SN36KVAO indicate?
The "SN" in 24FC01-E/SN36KVAO denotes the 8-lead SOIC (Small Outline Integrated Circuit) package, 3.90 mm body width, with an exposed thermal pad ("KVAO" suffix per Microchip's marking convention). This package is RoHS-compliant, surface-mountable, and validated for reflow soldering per JEDEC J-STD-020 standards.
24FC01-E/SN36KVAO Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 1Kbit
- Memory Organization:
- 128 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:
- 8-SOIC
24FC01-E/SN36KVAO FAQ
1.How can I place an order for 24FC01-E/SN36KVAO through Aetrix?
Please submit a Request for Quotation (RFQ) for 24FC01-E/SN36KVAO 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 24FC01-E/SN36KVAO reliable?
The price and inventory of 24FC01-E/SN36KVAO are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24FC01-E/SN36KVAO is usually 5 days.
3.What payment methods are accepted for 24FC01-E/SN36KVAO?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24FC01-E/SN36KVAO transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24FC01-E/SN36KVAO?
24FC01-E/SN36KVAO orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24FC01-E/SN36KVAO 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 24FC01-E/SN36KVAO?
For technical support, including 24FC01-E/SN36KVAO datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24FC01-E/SN36KVAO requirements.
6.How does Aetrix verify that 24FC01-E/SN36KVAO is sourced from the original manufacturer or authorized distributors?
All 24FC01-E/SN36KVAO 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 24FC01-E/SN36KVAO meets industry standards.
7.What is the process for return or replacement of 24FC01-E/SN36KVAO?
All 24FC01-E/SN36KVAO units undergo pre-shipment inspection (PSI). If there is an issue with 24FC01-E/SN36KVAO, 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 24FC01-E/SN36KVAO part is unused and in its original packaging.
Return procedure for 24FC01-E/SN36KVAO:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24FC01-E/SN36KVAO Tags
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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