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Microchip Technology 24FC16T-I/MUY
- Part No.:
- 24FC16T-I/MUY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
24FC16T-I/MUY.pdf
- Description:
- IC EEPROM 16KBIT I2C 8UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,297
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Product details
Overview
24FC16T-I/MUY from Microchip Technology Inc. is a 16-Kbit I²C-compatible serial EEPROM organized as eight 256 × 8-bit memory blocks. It operates from 1.7V to 5.5V, supports up to 1 MHz clock frequency, features hardware write-protection via the WP pin, and delivers ≤1 μA standby current at industrial temperature (–40°C to +85°C). It is used in embedded systems for storing calibration data, configuration settings, and firmware parameters.
For engineers reviewing the 24FC16T-I/MUY datasheet, 24FC16T-I/MUY pinout, 24FC16T-I/MUY application, or 24FC16T-I/MUY equivalent, key selection criteria include its 1 MHz I²C interface speed, 1.7V low-voltage operation, 16-byte page write buffer, Schmitt-trigger noise immunity, and MUY-package compatibility with space-constrained PCB layouts.
Technical Context
The 24FC16T-I/MUY functions as an I²C slave device with fixed 4-bit control code '1010' and 3-bit block-select addressing, enabling access to eight 256-word memory blocks. Its internal Address Pointer auto-increments during sequential reads and page writes, supporting FIFO-based overwrite behavior within the 16-byte page boundary.
It implements Schmitt-trigger inputs on SDA/SCL with 50 ns spike suppression and slope-controlled outputs to minimize ground bounce. Write protection is implemented via a dedicated WP pin tied to VCC (full-array lock) or VSS (enabled), independent of I²C commands.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8), organized as eight 256-word blocks for modular address management |
| Interface | I²C-compatible two-wire bus with 1 MHz max clock (VCC = 1.7–5.5V), enabling high-speed configuration updates |
| Supply Voltage | 1.7V to 5.5V - supports direct connection to 1.8V, 2.5V, 3.3V, and 5V logic domains without level shifters |
| Write Cycle Time | ≤5 ms per byte or page - enables rapid nonvolatile storage in time-critical boot or calibration sequences |
| Endurance | 1,000,000 erase/write cycles - ensures long-term reliability in field-updatable devices |
| Data Retention | >200 years at +85°C - guarantees persistent storage across product lifetime under industrial thermal stress |
| Temperature Range | Industrial grade: –40°C to +85°C - qualified for use in automotive ECUs, industrial controllers, and outdoor IoT nodes |
Pinout & Package
24FC16T-I/MUY is housed in an 8-lead UDFN (Ultra-Thin DFN) package with 2 mm × 3 mm body and 0.5 mm pitch, marked "MUY" per Microchip's packaging nomenclature. The exposed pad is electrically unconnected and may be left floating or tied to VSS for thermal enhancement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSS | Ground reference | Common return path for all internal circuitry; must be low-impedance to ensure stable EEPROM operation |
| WP | Hardware write-protect input | Logic-high disables all write operations (byte/page); no software overhead required for critical parameter locking |
| SCL | Serial clock input | Master-generated clock synchronizing all I²C transfers; Schmitt-trigger input rejects noise up to 50 ns |
| SDA | Bidirectional data I/O | Open-drain output requiring external pull-up; supports multi-master arbitration and ACK/NACK signaling |
| VCC | Power supply | Single-supply input powering EEPROM core and I/O buffers; valid down to 1.7V for battery-backed operation |
Key Features
| Feature | Design Value |
|---|---|
| 1 MHz I²C interface | Enables 10× faster configuration writes vs. legacy 100 kHz EEPROMs, reducing boot-time latency |
| 16-byte page write buffer | Reduces I²C transaction count by up to 16× per page, lowering bus occupancy and CPU overhead |
| Schmitt-trigger inputs | Guarantees reliable signal detection on noisy industrial buses without external filtering components |
| Hardware WP pin | Provides tamper-resistant, zero-software-overhead protection for factory-set parameters or security keys |
| 1.7V operation | Permits direct integration with ultra-low-power microcontrollers (e.g., PIC16LF, SAM L21) without voltage translation |
Applications
| Smart Meter Calibration Storage | Automotive ECU Configuration |
|---|---|
Use Scenario: Storing meter-specific gain/offset coefficients and tariff tables in electricity/water/gas meters operating on lithium-thionyl chloride batteries. IC Role / Device Role / Timing Role: Nonvolatile parameter store accessed during power-up and field update; retains data through 15+ year deployments. Use Value: 1.7V operation enables direct coupling to 2.0V cutoff battery rails; >200-year retention eliminates recalibration service visits. | Use Scenario: Holding vehicle-specific CAN node IDs, sensor scaling factors, and emission calibration maps in engine control units. IC Role / Device Role / Timing Role: I²C slave providing fast, deterministic read/write access to safety-critical configuration data during cold start. Use Value: 1 MHz interface reduces boot-time EEPROM reads by 75% vs. 250 kHz alternatives; AEC-Q100 qualification ensures automotive-grade reliability. |
| Industrial PLC Firmware Patching | Medical Device Usage Logging |
Use Scenario: Storing hot-swappable firmware patches and version metadata in programmable logic controllers deployed in factory automation lines. IC Role / Device Role / Timing Role: Secure, page-write-optimized storage for field-upgradable code segments; WP pin prevents accidental corruption during network updates. Use Value: 1,000,000 endurance cycles support daily patch deployments over 27 years; 5 ms write time minimizes controller downtime. | Use Scenario: Recording patient treatment timestamps, dosage counters, and error logs in portable infusion pumps and diagnostic handhelds. IC Role / Device Role / Timing Role: Tamper-evident audit trail storage with hardware write-lock enforced during therapy delivery. Use Value: WP pin tied to system enable signal ensures logs cannot be altered mid-treatment; RoHS compliance meets medical regulatory requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA16T-I/SN | Max I²C speed 400 kHz; same 16 Kbit density and 1.7V operation but slower interface | Preferred where bus timing margins are tight or master MCU lacks 1 MHz I²C support | Select when cost sensitivity outweighs speed requirement; SN package offers SOIC compatibility for legacy layouts |
| AT24C16D-MAHM-T | Same 16 Kbit size, 1 MHz I²C, and 1.7V operation; different pinout (SOT-23-5) and manufacturer | Used where board area is constrained and SOT-23 footprint is already allocated | Choose for drop-in replacement only if layout accommodates 5-pin SOT-23; verify WP functionality matches system lock strategy |
Compared with 24AA16T-I/SN, the 24FC16T-I/MUY delivers 2.5× faster configuration writes and fits tighter board spaces via UDFN; versus AT24C16D-MAHM-T, it offers identical speed but Microchip's AEC-Q100 qualification and unified WP implementation simplify automotive design validation.
Availability
24FC16T-I/MUY is available at Aetrix Electronics and suitable for smart metering, automotive ECU, and industrial PLC applications requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for 24FC16T-I/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 manufacturing and support infrastructure.
The 24FC16T-I/MUY belongs to Microchip's 24XX16 family of serial EEPROMs, designed specifically for low-voltage, high-reliability nonvolatile storage in resource-constrained embedded systems across automotive, industrial, and consumer markets.
FAQ
What is the maximum I²C clock frequency supported by the 24FC16T-I/MUY?
The 24FC16T-I/MUY supports up to 1 MHz I²C clock frequency across its full 1.7V to 5.5V supply range, unlike the 24AA16 (max 400 kHz) or 24LC16B (max 400 kHz, min 2.5V). This allows faster configuration writes and reduced bus occupancy in time-sensitive applications. The 24FC16T-I/MUY maintains full AC timing compliance at 1 MHz even at 1.7V, making it ideal for ultra-low-power designs.
Does the 24FC16T-I/MUY require external pull-up resistors on SDA and SCL lines?
Yes, the 24FC16T-I/MUY requires external pull-up resistors on both SDA and SCL lines because its I²C interface uses open-drain outputs. Typical values are 2 kΩ for 1 MHz operation, 10 kΩ for 100 kHz. The 24FC16T-I/MUY does not integrate internal pull-ups, so omission will result in bus failure. Pull-up voltage must match VCC (1.7–5.5V) to ensure proper logic levels and noise margin.
How does the WP pin function on the 24FC16T-I/MUY?
The WP (Write-Protect) pin on the 24FC16T-I/MUY provides hardware-level write inhibition: when tied to VCC, all write operations (byte and page) to the entire 16-Kbit array are blocked, while read operations remain fully functional. When tied to VSS or left floating, normal read/write access is enabled. This feature requires no firmware intervention and is active immediately upon power-up, making it essential for protecting critical calibration or security data in the 24FC16T-I/MUY.
What is the page write capability of the 24FC16T-I/MUY?
The 24FC16T-I/MUY features a 16-byte page write buffer, allowing up to 16 bytes to be loaded into the internal latch and written to memory in a single self-timed cycle (≤5 ms). Page writes must stay within a single 16-byte physical boundary (e.g., addresses 0x00–0x0F); crossing boundaries causes wraparound. This capability reduces I²C transaction overhead by up to 16× compared to byte writes, significantly improving throughput in the 24FC16T-I/MUY.
Is the 24FC16T-I/MUY qualified for automotive applications?
Yes, the 24FC16T-I/MUY is AEC-Q100 qualified for automotive applications, meeting stress test requirements for temperature cycling, humidity, and electrical robustness. Its industrial temperature range (–40°C to +85°C), 1.7V operation, and hardware WP pin make it suitable for engine control units, body control modules, and ADAS subsystems. The 24FC16T-I/MUY shares the same qualification status as other members of Microchip's 24XX16 family explicitly listed in the datasheet as AEC-Q100 compliant.
24FC16T-I/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:
- 16Kbit
- Memory Organization:
- 2K 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-UDFN (2x3)
24FC16T-I/MUY FAQ
1.How can I place an order for 24FC16T-I/MUY through Aetrix?
Please submit a Request for Quotation (RFQ) for 24FC16T-I/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 24FC16T-I/MUY reliable?
The price and inventory of 24FC16T-I/MUY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24FC16T-I/MUY is usually 5 days.
3.What payment methods are accepted for 24FC16T-I/MUY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24FC16T-I/MUY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24FC16T-I/MUY?
24FC16T-I/MUY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24FC16T-I/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 24FC16T-I/MUY?
For technical support, including 24FC16T-I/MUY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24FC16T-I/MUY requirements.
6.How does Aetrix verify that 24FC16T-I/MUY is sourced from the original manufacturer or authorized distributors?
All 24FC16T-I/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 24FC16T-I/MUY meets industry standards.
7.What is the process for return or replacement of 24FC16T-I/MUY?
All 24FC16T-I/MUY units undergo pre-shipment inspection (PSI). If there is an issue with 24FC16T-I/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 24FC16T-I/MUY part is unused and in its original packaging.
Return procedure for 24FC16T-I/MUY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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