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Infineon Technologies FM24CL16B-DG
- Part No.:
- FM24CL16B-DG
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
FM24CL16B-DG.pdf
- Description:
- IC FRAM 16KBIT I2C 1MHZ 8DFN
- Quantity:
- Payment:
- Shipping:
Inventory:702
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Product details
Overview
FM24CL16B-DG from Cypress Semiconductor is a 16-Kbit (2K × 8) serial I²C F-RAM nonvolatile memory with NoDelay™ write capability, 10¹⁴ read/write endurance, and 151-year data retention at +85 °C. It operates from 2.7 V to 3.65 V across –40 °C to +85 °C and serves as a hardware drop-in replacement for I²C EEPROM in data-logging and industrial control systems.
For engineers reviewing the FM24CL16B-DG datasheet, FM24CL16B-DG pinout, FM24CL16B-DG application, or FM24CL16B-DG equivalent, key selection criteria include write-speed-critical nonvolatile storage, elimination of write polling, high-cycle logging integrity, and compatibility with legacy I²C timing (100 kHz/400 kHz/1 MHz).
Technical Context
The FM24CL16B-DG implements a ferroelectric memory array organized as 2,048 × 8 bits, accessed via standard I²C protocol with 7-bit slave address (1010xxxR/W) and 11-bit internal addressing (8-bit word + 3-bit page). It requires no internal charge pump or write delay - each byte writes at bus speed upon ACK completion.
Its interface logic supports START/STOP conditions, clock stretching-free operation, and automatic address incrementing during sequential transfers. The device lacks power management circuitry beyond POR, relying on stable VDD within spec to ensure correct latch and array behavior.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2,048 × 8), enabling compact firmware parameter storage without external address latches |
| Interface | I²C-compatible 2-wire serial, supporting 100 kHz / 400 kHz / 1 MHz modes for flexible system timing integration |
| Write Endurance | 100 trillion (10¹⁴) cycles - supports continuous logging at 100 Hz for >31 years without wear-out |
| Data Retention | 151 years at +85 °C - eliminates periodic refresh or backup power requirements in sealed industrial enclosures |
| Supply Voltage | 2.7 V to 3.65 V - compatible with 3.3 V logic rails and tolerant of brown-out conditions down to 2.7 V |
| Operating Temp | –40 °C to +85 °C - qualified for uncontrolled industrial environments including motor drives and PLC backplanes |
| Active Current | 100 µA at 100 kHz - reduces average power in battery-backed sensor nodes during frequent write bursts |
Pinout & Package
FM24CL16B-DG is supplied in an 8-pin SOIC package (3.9 mm × 4.9 mm, 1.27 mm pitch) with standard lead finish and RoHS compliance. Pin functions are validated per Cypress Document 001-84456 Rev. *L.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: WP | Write Protect input | Hardware-level lock for entire memory map when pulled to VDD; internally pulled down for default write-enable |
| 2: SCL | I²C clock input | Master-generated synchronous edge (rising for sampling, falling for output) - no internal clock generation required |
| 3: SDA | I²C bidirectional data line | Open-drain with Schmitt trigger input and slope-controlled output - enables wired-AND bus topology with noise immunity |
| 4: VSS | Ground reference | Primary return path for all internal logic and memory array - must be low-impedance connection to system GND |
| 5: VDD | Power supply input | Single 2.7–3.65 V rail powers both interface logic and ferroelectric array - no auxiliary voltage needed |
| 6–8: NC | No-connect terminals | Die pads not bonded; electrically isolated - must remain unconnected on PCB to avoid parasitic coupling |
Key Features
| Feature | Design Value |
|---|---|
| NoDelay™ Write | Zero-latency byte writes - eliminates software polling loops and guarantees deterministic write completion within one I²C frame |
| Ferroelectric Core | Nonvolatile storage without charge-pump circuitry - avoids high-voltage stress, leakage, and endurance degradation seen in floating-gate EEPROM |
| I²C Timing Compatibility | Supports legacy 100 kHz and 400 kHz timings plus 1 MHz fast-mode - enables reuse of existing EEPROM driver stacks without modification |
| Industrial Temp Range | Guaranteed operation from –40 °C to +85 °C - validated across full voltage and timing margins for harsh factory-floor deployment |
Applications
| Data Logger in Smart Meters | PLC I/O Configuration Storage |
|---|---|
Use Scenario: Capturing time-stamped energy consumption events every 1–5 seconds under battery backup. IC Role / Device Role / Timing Role: Nonvolatile scratchpad for timestamped register snapshots, written synchronously with metering interrupts. Use Value: 10¹⁴ endurance ensures >30 years of daily 10,000-write cycles; NoDelay™ prevents missed samples during burst logging. | Use Scenario: Storing calibrated analog input offsets, digital I/O mapping, and safety thresholds in modular PLC bases. IC Role / Device Role / Timing Role: Configuration EEPROM replacement holding persistent setup data updated only on commissioning or field reconfiguration. Use Value: Eliminates 5–10 ms EEPROM write delays that cause I/O freeze during configuration - updates complete in <100 µs. |
| Medical Sensor Calibration Vault | Automotive Body Control Module (BCM) |
Use Scenario: Holding factory-calibrated gain/offset coefficients for ECG and SpO₂ front-end ADCs, retained across power cycles. IC Role / Device Role / Timing Role: Secure, tamper-resistant calibration store accessed only during device initialization or service mode. Use Value: 151-year retention at +85 °C meets ISO 13485 shelf-life requirements; WP pin enables hardware lock post-calibration. | Use Scenario: Recording door-lock actuation history, window position limits, and mirror memory settings in 12 V automotive systems. IC Role / Device Role / Timing Role: Crash-survivable event logger interfaced directly to BCM microcontroller I²C peripheral. Use Value: Operates reliably at 2.7 V during cold-crank transients; 10¹⁴ endurance supports lifetime diagnostic logging without wear leveling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial nonvolatile memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C16D-SSHM-T (Microchip) | 16-Kbit I²C EEPROM with 1M write cycles, 100-year retention, requires 5 ms write cycle time and polling | Limited to infrequent configuration storage; unsuitable for sub-millisecond logging intervals | Select when cost sensitivity outweighs write performance and endurance requirements |
| MB85RC16PNF-G-JNERE1 (Fujitsu) | 16-Kbit I²C FRAM with identical 10¹⁴ endurance and NoDelay™, but rated only to +70 °C and lacks WP pin | Not qualified for extended industrial temperature range; no hardware write protection | Select only for commercial-temp consumer applications where WP is managed in software |
Compared with AT24C16D-SSHM-T and MB85RC16PNF-G-JNERE1, FM24CL16B-DG uniquely combines industrial temperature rating, hardware write protection, and guaranteed 1-MHz I²C support - making it the only option for high-speed, high-reliability embedded logging in demanding environments.
Availability
FM24CL16B-DG is available at Aetrix Electronics and suitable for data logging, industrial PLC configuration, medical calibration vaults, and automotive BCM event recording requiring stable component supply and long-term lifecycle assurance.
Supply support for FM24CL16B-DG 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
Cypress Semiconductor (now part of Infineon Technologies) designs high-reliability nonvolatile memory and programmable system-on-chip solutions for industrial, automotive, and IoT applications.
The FM24CL16B-DG belongs to Cypress's F-RAM product line, engineered specifically to replace EEPROM in applications demanding rapid, frequent, and low-power nonvolatile writes without compromising data integrity or thermal robustness.
FAQ
Is FM24CL16B-DG pin-compatible with standard 8-pin SOIC EEPROMs like AT24C16?
Yes - FM24CL16B-DG uses identical 8-pin SOIC footprint and I²C pin assignments (WP, SCL, SDA, VSS, VDD) as AT24C16-series EEPROMs. No PCB redesign is needed; only firmware timing adjustments may be omitted due to eliminated write delays.
Does FM24CL16B-DG require external pull-up resistors on SDA and SCL lines?
Yes - SDA and SCL are open-drain interfaces requiring external pull-up resistors. Cypress recommends 2.2 kΩ to 10 kΩ depending on bus capacitance and target I²C speed (100 kHz to 1 MHz); values must comply with I²C bus specification rise-time limits.
Can FM24CL16B-DG operate at 1.8 V?
No - FM24CL16B-DG is specified only for 2.7 V to 3.65 V operation. Attempting 1.8 V operation violates absolute maximum ratings and will result in undefined behavior, failed writes, or data corruption.
What happens if WP pin is left floating?
The WP pin has an internal pull-down resistor; if left unconnected, it defaults to logic LOW, enabling full memory write access. For secure operation, tie WP to VDD to lock all addresses - do not rely on floating state in production designs.
FM24CL16B-DG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- F-RAM™
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FRAM
- Technology:
- FRAM (Ferroelectric RAM)
- Memory Size:
- 16Kbit
- Memory Organization:
- 2K x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 1 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 550 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-DFN (4x4.5)
FM24CL16B-DG FAQ
1.How can I place an order for FM24CL16B-DG through Aetrix?
Please submit a Request for Quotation (RFQ) for FM24CL16B-DG 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 FM24CL16B-DG reliable?
The price and inventory of FM24CL16B-DG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FM24CL16B-DG is usually 5 days.
3.What payment methods are accepted for FM24CL16B-DG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FM24CL16B-DG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FM24CL16B-DG?
FM24CL16B-DG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FM24CL16B-DG 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 FM24CL16B-DG?
For technical support, including FM24CL16B-DG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FM24CL16B-DG requirements.
6.How does Aetrix verify that FM24CL16B-DG is sourced from the original manufacturer or authorized distributors?
All FM24CL16B-DG 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 FM24CL16B-DG meets industry standards.
7.What is the process for return or replacement of FM24CL16B-DG?
All FM24CL16B-DG units undergo pre-shipment inspection (PSI). If there is an issue with FM24CL16B-DG, 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 FM24CL16B-DG part is unused and in its original packaging.
Return procedure for FM24CL16B-DG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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