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Microchip Technology 24FC04HT-E/MUY
- Part No.:
- 24FC04HT-E/MUY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
24FC04HT-E/MUY.pdf
- Description:
- IC EEPROM 4KBIT I2C 1MHZ 8UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,100
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Product details
Overview
24FC04HT-E/MUY 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, 5 ms max page write time, and hardware half-array write-protection (100h–1FFh). It targets embedded systems requiring nonvolatile storage in space-constrained industrial and automotive applications.
For engineers reviewing the 24FC04HT-E/MUY datasheet, 24FC04HT-E/MUY pinout, 24FC04HT-E/MUY application, or 24FC04HT-E/MUY equivalent, key selection factors include its extended temperature range (–40°C to +125°C), low 1 µA standby current at E-temp, 16-byte page buffer, Schmitt-trigger inputs for noise immunity, and TDFN-8 package compatibility with high-density PCB layouts.
Technical Context
The 24FC04HT-E/MUY implements a two-wire I²C interface with addressable block selection via the B0 bit in the control byte, enabling access to either 256-word memory block. Its internal address pointer auto-increments during sequential reads and supports current-address, random, and sequential read modes.
It uses on-chip charge-pump circuitry for EEPROM programming, features self-timed erase/write cycles, and incorporates input filtering (50 ns spike suppression) and slope-controlled outputs to minimize ground bounce-critical for stable operation in electrically noisy environments like automotive body control modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4 Kbit (512 × 8), split into two independent 256-word blocks for selective addressing |
| Interface | I²C-compatible two-wire bus supporting 1 MHz clock at 1.7–5.5V - enables high-speed firmware parameter logging |
| Write Protection | Hardware-enabled half-array protection (100h–1FFh) via WP pin tied to VCC - prevents accidental overwrites of critical configuration data |
| Page Write Buffer | 16-byte buffer - reduces host MCU overhead by allowing burst writes without per-byte stop/start overhead |
| Endurance & Retention | 1 million erase/write cycles and >200 years data retention - suitable for long-life industrial deployments |
| Supply Range | 1.7V to 5.5V - interoperable with 1.8V, 3.3V, and 5V logic domains without level-shifting |
| Temperature Range | –40°C to +125°C (Extended grade) - qualified for under-hood automotive and industrial edge sensor nodes |
Pinout & Package
24FC04HT-E/MUY is packaged in an 8-lead 2×3 mm TDFN (Thin Dual Flat No-lead) with exposed pad, optimized for thermal performance and board space efficiency in compact designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1, A2 | Device Address Inputs | No internal connection - may be left floating or tied to VSS/VCC without affecting function or I²C address (fixed at 1010xxx0/1) |
| VSS | Ground Reference | Primary return path for all internal circuits; exposed pad must be connected to VSS for thermal and EMI performance |
| SDA | Serial Data I/O | Open-drain bidirectional line requiring external pull-up; transmits/receives addresses, commands, and data under SCL control |
| SCL | Serial Clock Input | Master-generated clock synchronizing all data transfers; Schmitt-trigger input ensures noise immunity on rising/falling edges |
| WP | Write-Protect Control | Logic-high disables writes to upper 256-byte block (100h–1FFh); logic-low enables full-memory write access |
| VCC | Power Supply | Single 1.7–5.5V supply powering EEPROM core and I/O; supports brown-out tolerant operation down to 1.7V |
Key Features
| Feature | Design Value |
|---|---|
| 1 MHz I²C Clock Support | Enables 125 KB/s theoretical throughput - accelerates calibration data upload in test equipment and factory programming |
| Schmitt Trigger Inputs | 50 mV hysteresis (0.05×VCC) on SDA/SCL - rejects sub-50 ns noise spikes common in motor-drive or power-supply adjacent layouts |
| Output Slope Control | Controlled rise/fall times prevent ground bounce-induced glitches during fast switching - essential for mixed-signal SoC co-location |
| ESD Protection | >4 kV HBM - meets IEC 61000-4-2 Level 2 for robustness in handling-sensitive manufacturing and field service environments |
| Factory Programming | Pre-load of device-specific identifiers or calibration constants at wafer/test - reduces post-assembly firmware provisioning steps |
Applications
| Automotive Body Control Module | Industrial Sensor Node |
|---|---|
Use Scenario: Storing seat position presets, mirror calibration offsets, and lighting profiles across vehicle lifecycle. IC Role / Device Role / Timing Role: Nonvolatile configuration storage with guaranteed data integrity during ignition cycling and battery disconnect events. Use Value: Extended –40°C to +125°C rating and 1 million endurance cycles ensure reliable recall of user preferences over 15+ years of vehicle service life. | Use Scenario: Logging temperature, humidity, and pressure readings from MEMS sensors in predictive maintenance gateways. IC Role / Device Role / Timing Role: Local data buffering between sensor sampling bursts and wireless transmission intervals. Use Value: 16-byte page write capability minimizes I²C bus occupancy, allowing concurrent MCU tasks while preserving measurement history during RF sleep cycles. |
| Medical Infusion Pump | Smart Energy Meter |
Use Scenario: Retaining drug library metadata, dose limits, and usage audit logs compliant with IEC 62304 Class C software requirements. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage of safety-critical operational parameters and event timestamps. Use Value: Hardware write-protect (WP = VCC) isolates immutable calibration data from runtime-modifiable therapy settings - simplifies regulatory traceability. | Use Scenario: Recording tariff schedules, demand-response commands, and metering firmware version history in ANSI C12.22-compliant meters. IC Role / Device Role / Timing Role: Firmware-agnostic configuration storage accessible across multiple generations of meter SoCs. Use Value: 1.7V minimum VCC allows direct connection to supercapacitor backup rails during AC mains failure - maintains time-of-use data integrity during blackouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA04HT-I/MUY | Same 4-Kbit capacity and TDFN-8 package, but rated only for Industrial temp (–40°C to +85°C) and max 400 kHz I²C clock | Suitable for consumer or commercial-grade products where extended temperature and 1 MHz speed are unnecessary | Select when cost sensitivity outweighs automotive/industrial thermal requirements and high-speed logging is not needed |
| AT24C04D-MAHM-T | 4-Kbit I²C EEPROM in 8-lead TDFN, rated –40°C to +125°C, but lacks hardware half-array write-protect and has 100 kHz/400 kHz max clock (no 1 MHz mode) | Used where full-array write-enable is acceptable and lower-speed communication suffices for infrequent configuration updates | Choose when Microchip ecosystem integration is not required and RoHS-compliant sourcing from Microchip-alternative suppliers is preferred |
Compared with 24AA04HT-I/MUY, the 24FC04HT-E/MUY delivers 2.5× faster I²C throughput and extended temperature compliance; versus AT24C04D-MAHM-T, it provides deterministic hardware-based write protection and higher clock tolerance - both critical for functional safety and real-time data capture in harsh environments.
Availability
24FC04HT-E/MUY is available at Aetrix Electronics and suitable for automotive body control units, industrial sensor nodes, medical infusion pumps, and smart energy meters requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 24FC04HT-E/MUY 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 devices, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 24FC04H family was designed specifically for high-reliability, low-power nonvolatile storage in automotive and industrial applications demanding extended temperature operation, robust noise immunity, and hardware-level data protection.
FAQ
What is the maximum I²C clock frequency supported by the 24FC04HT-E/MUY?
The 24FC04HT-E/MUY supports up to 1 MHz I²C clock frequency across its full 1.7V–5.5V supply range, enabling faster configuration writes and parameter updates than legacy 400 kHz EEPROMs - a key advantage in time-critical boot sequences and factory programming workflows.
Does the 24FC04HT-E/MUY require external pull-up resistors on SDA and SCL lines?
Yes, the 24FC04HT-E/MUY requires external pull-up resistors on both SDA and SCL lines because its I/O pins are open-drain. Typical values are 2 kΩ for 1 MHz operation; resistor selection must account for bus capacitance, VCC level, and desired rise time per I²C specification.
How does the hardware write-protection feature work on the 24FC04HT-E/MUY?
When the WP pin of the 24FC04HT-E/MUY is tied to VCC, writes to memory addresses 100h–1FFh (upper 256 bytes) are inhibited while reads remain fully functional; tying WP to VSS enables full-memory read/write access - providing a simple, latch-free method to safeguard calibration or security keys.
Is the 24FC04HT-E/MUY pin-compatible with other members of the 24XX04H family?
Yes, the 24FC04HT-E/MUY shares identical pinout and footprint with all 24XX04H variants in the same package type (e.g., TDFN-8), including 24AA04HT-I/MUY and 24LC04BHT-E/MUY - enabling drop-in replacement where voltage, speed, and temperature requirements align.
What is the endurance rating and data retention specification for the 24FC04HT-E/MUY?
The 24FC04HT-E/MUY is rated for more than 1 million erase/write cycles and guarantees data retention exceeding 200 years at +25°C - validated per JEDEC standards - making it suitable for infrastructure and medical devices where field replacement is impractical or costly.
24FC04HT-E/MUY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-UFDFN Exposed Pad
- 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:
- 8-UDFN (2x3)
24FC04HT-E/MUY FAQ
1.How can I place an order for 24FC04HT-E/MUY through Aetrix?
Please submit a Request for Quotation (RFQ) for 24FC04HT-E/MUY 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 24FC04HT-E/MUY reliable?
The price and inventory of 24FC04HT-E/MUY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24FC04HT-E/MUY is usually 5 days.
3.What payment methods are accepted for 24FC04HT-E/MUY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24FC04HT-E/MUY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24FC04HT-E/MUY?
24FC04HT-E/MUY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24FC04HT-E/MUY 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 24FC04HT-E/MUY?
For technical support, including 24FC04HT-E/MUY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24FC04HT-E/MUY requirements.
6.How does Aetrix verify that 24FC04HT-E/MUY is sourced from the original manufacturer or authorized distributors?
All 24FC04HT-E/MUY 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 24FC04HT-E/MUY meets industry standards.
7.What is the process for return or replacement of 24FC04HT-E/MUY?
All 24FC04HT-E/MUY units undergo pre-shipment inspection (PSI). If there is an issue with 24FC04HT-E/MUY, 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 24FC04HT-E/MUY part is unused and in its original packaging.
Return procedure for 24FC04HT-E/MUY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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