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Microchip Technology 24FC04H-I/SN
- Part No.:
- 24FC04H-I/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
24FC04H-I/SN.pdf
- Description:
- IC EEPROM 4KBIT I2C 1MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,029
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Product details
Overview
24FC04H-I/SN from Microchip Technology Inc. is a 4-Kbit I²C-compatible serial EEPROM organized as two 256 × 8-bit blocks, operating from 1.7V to 5.5V with 1 MHz clock support, 16-byte page write buffer, and hardware half-array write-protection (100h–1FFh). It delivers ≤1 µA standby current and >1 million erase/write cycles for nonvolatile data storage in space-constrained industrial control modules.
For engineers reviewing the 24FC04H-I/SN datasheet, 24FC04H-I/SN pinout, 24FC04H-I/SN application, or 24FC04H-I/SN equivalent, this page provides verified electrical specs, SOIC-8 package layout, I²C timing compliance at 1 MHz, write-protection behavior, and direct alternatives for memory retention-critical designs.
Technical Context
The 24FC04H-I/SN implements a two-wire I²C interface with Schmitt-trigger inputs and slope-controlled outputs to suppress noise and eliminate ground bounce. Its internal address counter supports current-address, random, and sequential read modes, while the 16-byte page buffer enables efficient burst writes without host-side buffering.
Write protection is implemented via the WP pin: tied to VCC, it disables writes to addresses 100h–1FFh (half-array); tied to VSS, full array access is enabled. The device uses self-timed erase/write cycles with 5 ms maximum page write time and supports ACK polling to detect write completion without fixed delays.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4 Kbit (512 bytes), organized as two independent 256 × 8-bit blocks for flexible addressing |
| VCC Range | 1.7V–5.5V - enables direct interfacing with 1.8V, 2.5V, 3.3V, and 5V systems without level shifters |
| Max Clock Frequency | 1 MHz - doubles throughput vs. 400 kHz variants, reducing firmware wait time in high-speed logging |
| Page Write Buffer | 16 bytes - allows single-stop burst writes within one physical page boundary (00h–0Fh, 10h–1Fh, etc.) |
| Write Protection | Hardware-enabled half-array (100h–1FFh) - prevents accidental overwrite of critical configuration data |
| Endurance & Retention | 1,000,000 erase/write cycles and >200 years data retention - validated at 25°C/5.5V per JEDEC standards |
| Temp Range | Industrial (−40°C to +85°C) - qualified for use in factory automation, metering, and automotive body electronics |
Pinout & Package
24FC04H-I/SN is supplied in an 8-lead narrow-body SOIC package (SN), 3.90 mm wide, with standard 1.27 mm pitch. Pin 1 is marked by a beveled corner or dot; the package is RoHS-compliant and lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1, A2 | Address Input (No Connect) | Internally unconnected - may be left floating or tied to VSS/VCC with no functional impact |
| VSS | Ground Reference | System common return path; must be low-impedance to ensure stable I²C signaling and noise immunity |
| SDA | Serial Data I/O | Open-drain bidirectional bus line requiring external pull-up (2 kΩ typical for 1 MHz operation) |
| SCL | Serial Clock Input | Master-generated clock synchronizing all read/write transfers; Schmitt-trigger input rejects <50 ns noise spikes |
| WP | Write-Protect Control | Active-high enable: VCC = half-array protected (100h–1FFh); VSS = full array writable |
| VCC | Power Supply | Single 1.7–5.5V supply - powers EEPROM core and I/O buffers; decoupling capacitor (100 nF) required near pin |
Key Features
| Feature | Design Value |
|---|---|
| 1 MHz I²C Compatibility | Enables real-time sensor calibration data logging at up to 125 kbyte/s effective throughput in page mode |
| Schmitt Trigger Inputs | Provides 0.05×VCC hysteresis on SDA/SCL - eliminates false triggering from EMI in motor drive or power supply environments |
| Self-Timed Write Cycle | Removes need for host firmware delay loops; ACK polling confirms completion in <5 ms worst-case |
| Hardware Write-Protection | Prevents corruption of boot configuration or calibration constants during brown-out or firmware update sequences |
| 1.7V Operation | Supports direct connection to ultra-low-power microcontrollers (e.g., PIC16LF1xxx) without voltage translation |
Applications
| Industrial Sensor Node | Smart Energy Meter |
|---|---|
Use Scenario: Storing calibrated offset/gain coefficients and last-known sensor readings during mains power loss. IC Role / Device Role / Timing Role: Nonvolatile parameter storage with guaranteed write integrity under brown-out conditions. Use Value: Enables cold-start accuracy recovery without re-calibration; 1.7V operation ensures write completion down to battery backup threshold. |
Use Scenario: Retaining tariff tables, billing cycle counters, and tamper-event logs across 10+ year field deployment. IC Role / Device Role / Timing Role: Secure, long-life data archive with hardware write-lock for regulatory-critical registers. Use Value: Half-array protection isolates immutable tariff data from volatile usage counters, meeting IEC 62056-21 requirements. |
| Automotive Body Controller | Medical Diagnostic Device |
Use Scenario: Saving user preferences (mirror position, seat settings) and fault history codes in AEC-Q100-compliant modules. IC Role / Device Role / Timing Role: Automotive-grade EEPROM supporting extended temperature range and ESD-hardened I/O. Use Value: Qualified to −40°C to +125°C and >4 kV HBM ESD - survives under-hood thermal cycling and assembly ESD events. |
Use Scenario: Archiving calibration certificates, usage hours, and diagnostic test results for FDA audit traceability. IC Role / Device Role / Timing Role: High-reliability nonvolatile memory with >200-year data retention for regulatory documentation. Use Value: Eliminates need for periodic data refresh; retention spec validated per JEDEC JESD22-A117, supporting Class II medical device lifecycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA04H-I/SN | Max clock 400 kHz; VCC min 1.7V; same pinout and memory map | Limited to lower-speed control loops where 1 MHz bandwidth is unnecessary | Select when system clock budget is constrained and 2.5× slower write throughput is acceptable |
| AT24C04D-SSHM-T | 1 MHz capable; 1.7–5.5V; but lacks hardware half-array write-protect (only full-array WP) | Requires software-managed protection for critical sectors | Choose if vendor consolidation favors Microchip/Atmel portfolio and full-array lock suffices |
Compared with 24FC04H-I/SN, the 24AA04H-I/SN trades 1 MHz speed for broader legacy compatibility, while the AT24C04D-SSHM-T offers identical speed but requires firmware-level sector locking instead of hardware-enforced half-array protection.
Availability
24FC04H-I/SN is available at Aetrix Electronics and suitable for industrial sensor nodes, smart energy meters, and automotive body controllers requiring stable component supply, long-term data integrity, and AEC-Q100-aligned reliability.
Supply support for 24FC04H-I/SN 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 U.S.-based semiconductor company specializing in microcontrollers, analog devices, and memory solutions, with ISO 9001-certified manufacturing and global distribution.
The 24FC04H belongs to Microchip's 24XX04H family of I²C EEPROMs designed for robust, low-voltage, high-endurance nonvolatile storage in industrial, automotive, and medical applications where data retention and write reliability are critical.
FAQ
What is the maximum I²C clock frequency supported by the 24FC04H-I/SN?
The 24FC04H-I/SN supports up to 1 MHz I²C clock frequency across its full 1.7V–5.5V VCC range, enabling faster page writes than 400 kHz variants like the 24AA04H-I/SN. This is confirmed in Table 1-2 of DS20002119C, where FCLK = 1000 kHz is specified for 24FC04H at 1.7V ≤ VCC ≤ 5.5V. The 24FC04H-I/SN achieves this with optimized internal timing and slope-controlled outputs.
How does the hardware write-protection work on the 24FC04H-I/SN?
On the 24FC04H-I/SN, tying the WP pin to VCC disables write operations to memory addresses 100h–1FFh (half-array), while reads remain fully accessible. When WP is tied to VSS, full array (000h–1FFh) write access is enabled. This behavior is electrically enforced - no software command can override it - making it ideal for safeguarding calibration or configuration data against firmware errors.
Is the 24FC04H-I/SN compatible with 1.8V microcontrollers?
Yes, the 24FC04H-I/SN operates down to 1.7V VCC and features Schmitt-trigger inputs with 0.05×VCC hysteresis, ensuring reliable I²C communication with 1.8V logic families. Its 1 µA max standby current and 1 mA active read current minimize power impact in battery-backed systems, and no level-shifting circuitry is required for direct interface.
What is the endurance rating of the 24FC04H-I/SN, and how is it validated?
The 24FC04H-I/SN is rated for 1,000,000 erase/write cycles, tested per JEDEC JESD22-A117 at 25°C and 5.5V in page mode. This endurance is guaranteed across the full industrial temperature range (−40°C to +85°C) and applies to both byte and page writes. Data retention exceeds 200 years under the same conditions, verified through accelerated life testing.
Does the 24FC04H-I/SN require external pull-up resistors on SDA and SCL lines?
Yes, the 24FC04H-I/SN has open-drain SDA and SCL pins and requires external pull-up resistors. For 1 MHz operation, a 2 kΩ resistor to VCC is recommended (per Section 2.2 of DS20002119C); for 400 kHz, 2.2 kΩ is typical; for 100 kHz, 10 kΩ suffices. Pull-up value must be selected based on bus capacitance and desired rise time to meet AC timing specs (TR ≤ 1000 ns).
24FC04H-I/SN 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:
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
24FC04H-I/SN FAQ
1.How can I place an order for 24FC04H-I/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for 24FC04H-I/SN 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 24FC04H-I/SN reliable?
The price and inventory of 24FC04H-I/SN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24FC04H-I/SN is usually 5 days.
3.What payment methods are accepted for 24FC04H-I/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24FC04H-I/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24FC04H-I/SN?
24FC04H-I/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24FC04H-I/SN 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 24FC04H-I/SN?
For technical support, including 24FC04H-I/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24FC04H-I/SN requirements.
6.How does Aetrix verify that 24FC04H-I/SN is sourced from the original manufacturer or authorized distributors?
All 24FC04H-I/SN 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 24FC04H-I/SN meets industry standards.
7.What is the process for return or replacement of 24FC04H-I/SN?
All 24FC04H-I/SN units undergo pre-shipment inspection (PSI). If there is an issue with 24FC04H-I/SN, 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 24FC04H-I/SN part is unused and in its original packaging.
Return procedure for 24FC04H-I/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24FC04H-I/SN Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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AT24C02C-SSHM-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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