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Infineon Technologies FM24CL64B-GTR
- Part No.:
- FM24CL64B-GTR
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
FM24CL64B-GTR.pdf
- Description:
- IC FRAM 64KBIT I2C 1MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,678
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Product details
Overview
FM24CL64B-GTR from Cypress Semiconductor is a 64-Kbit (8K × 8) serial I²C ferroelectric RAM (F-RAM) with no write delay, 10¹⁴ read/write endurance, and 151-year data retention at industrial temperature (–40 °C to +85 °C). It operates from 2.7 V to 3.65 V and supports up to 1-MHz I²C bus speed - enabling real-time nonvolatile logging in power-constrained embedded systems.
For engineers reviewing the FM24CL64B-GTR datasheet, FM24CL64B-GTR pinout, FM24CL64B-GTR application, or FM24CL64B-GTR equivalent, key selection criteria include write-cycle latency, I²C timing compatibility with legacy EEPROMs, endurance-critical data logging requirements, and industrial-grade voltage/temperature margin.
Technical Context
The FM24CL64B-GTR implements a true nonvolatile memory core using lead zirconate titanate (PZT) ferroelectric capacitors, enabling byte-level writes at full I²C bus speed without internal write cycles or polling. Its architecture eliminates EEPROM-style erase-before-write and high-voltage charge pumps.
It uses standard I²C protocol with 7-bit slave address (1010xxxR/W), supports 100 kHz / 400 kHz / 1 MHz modes, and features hardware write protection via the WP pin. Addressing uses two-byte addressing with automatic increment and wraparound at 0x1FFF → 0x0000.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 64 Kbit (8,192 × 8 bits) - supports full byte-addressable access without page boundaries or erase blocks. |
| Interface | I²C (2-wire serial) - direct hardware replacement for EEPROM; compatible with standard I²C controllers and timing budgets. |
| Write Endurance | 100 trillion (10¹⁴) cycles - enables continuous logging at 100 Hz for >31 years without wear-out failure. |
| Data Retention | 151 years at +85 °C - guaranteed nonvolatile storage without refresh or backup power. |
| Write Latency | NoDelay™ - zero wait-state writes; next I²C transaction begins immediately after ACK, no polling required. |
| Supply Voltage | 2.7 V to 3.65 V - matches common 3.3 V system rails and avoids level-shifting in mixed-voltage designs. |
| Operating Temp | –40 °C to +85 °C - qualified for industrial control, metering, and automotive body electronics environments. |
Pinout & Package
FM24CL64B-GTR is available in an 8-pin SOIC package (JEDEC MS-012) and an 8-pin DFN package (3 mm × 2 mm, exposed pad not connected). Both packages support surface-mount assembly and industrial thermal profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A2 | Device Select Input | 3-bit hardware address pins; enable up to 8 devices on same I²C bus; pulled down internally. |
| SDA | Bi-directional Serial Data | Open-drain I²C data line with Schmitt trigger input and slope-controlled output; requires external pull-up. |
| SCL | Serial Clock Input | Master-generated clock; rising edge samples data, falling edge outputs data; Schmitt-triggered for noise immunity. |
| WP | Write Protect Input | Active-high hardware lock: tied to VDD disables all writes; tied to VSS enables full memory access. |
| VSS | Ground Reference | Primary return path for all internal circuitry; must be low-impedance connection to system ground plane. |
| VDD | Power Supply | Core logic and memory array supply; decoupling capacitor (0.1 µF) recommended within 5 mm of pin. |
Key Features
| Feature | Design Value |
|---|---|
| NoDelay™ Write Architecture | Eliminates write polling and timeout handling in firmware - reduces CPU overhead and simplifies I²C driver implementation. |
| 10¹⁴ Read/Write Endurance | Supports high-frequency data capture (e.g., sensor sampling at 1 kHz) over full product lifetime without memory degradation. |
| 151-Year Data Retention | Enables long-term unpowered storage in battery-backed or energy-harvesting systems without periodic refresh. |
| I²C Timing Compatibility | Meets standard 100 kHz / 400 kHz / 1 MHz timing specs - interoperable with existing EEPROM-based firmware and host controllers. |
| Low-Power Operation | 100 µA active current (100 kHz) and 3 µA standby - extends battery life in portable and remote monitoring applications. |
Applications
| Industrial Data Logger | Smart Metering System |
|---|---|
Use Scenario: Continuous timestamped recording of voltage, current, and temperature readings every 100 ms in factory-floor PLCs. IC Role / Device Role / Timing Role: Nonvolatile scratchpad memory storing last-known state and recent event history during brownout or reset. Use Value: Eliminates EEPROM write delays that cause missed samples; 10¹⁴ endurance ensures >30 years of operation at 10 Hz logging rate. | Use Scenario: Storing tariff schedules, consumption registers, and tamper-event timestamps in electricity/water meters. IC Role / Device Role / Timing Role: Primary nonvolatile storage for critical billing and compliance data requiring guaranteed retention across 15+ year field life. Use Value: 151-year retention meets utility regulatory requirements; no wear leveling or firmware overhead needed. |
| Automotive Body Control Module | Medical Diagnostic Device |
Use Scenario: Logging door lock actuation count, window position history, and fault codes in BCMs operating across –40 °C to +85 °C. IC Role / Device Role / Timing Role: Fail-safe configuration and event memory with guaranteed write completion before power loss. Use Value: NoDelay™ writes ensure fault records are saved even during abrupt ignition-off transitions. | Use Scenario: Capturing calibration coefficients, usage counters, and diagnostic logs in portable ultrasound or ECG units. IC Role / Device Role / Timing Role: Secure, low-power nonvolatile storage for FDA-regulated device history and traceability data. Use Value: RoHS-compliant packaging and industrial temp range meet medical EMC and reliability standards. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial nonvolatile memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C64D-SSHM-T | 64-Kbit I²C EEPROM; 1M write cycles; 10 ms typical write time; requires polling. | Limited to infrequent writes; unsuitable for sub-100 ms logging intervals. | Select only if cost sensitivity outweighs endurance and latency requirements. |
| MB85RC64TA-FPN-GE1 | 64-Kbit I²C F-RAM; identical 10¹⁴ endurance and NoDelay™; 2.7–5.5 V supply range. | Broadens voltage design margin; otherwise functionally interchangeable in most layouts. | Preferred when 5 V system compatibility or alternate sourcing is required. |
Compared with AT24C64D-SSHM-T, FM24CL64B-GTR delivers 100 million× higher endurance and eliminates write latency; versus MB85RC64TA-FPN-GE1, it offers tighter voltage tolerance (2.7–3.65 V vs. 2.7–5.5 V) and legacy Cypress design support infrastructure.
Availability
FM24CL64B-GTR is available at Aetrix Electronics and suitable for industrial data loggers, smart metering systems, automotive body control modules, and medical diagnostic devices requiring stable component supply and long-term lifecycle assurance.
Supply support for FM24CL64B-GTR 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 FM24CL64B-GTR belongs to Cypress's F-RAM product line, engineered specifically to replace EEPROM in latency- and endurance-critical applications while maintaining pin- and firmware-compatibility.
FAQ
Is FM24CL64B-GTR pin-compatible with standard 8-pin I²C EEPROMs?
Yes - FM24CL64B-GTR uses identical 8-pin SOIC and DFN footprints and matches the pin functions (A0–A2, SDA, SCL, WP, VSS, VDD) of industry-standard 64-Kbit I²C EEPROMs like the AT24C64. No PCB redesign is needed for drop-in replacement.
Does FM24CL64B-GTR require special I²C timing adjustments in existing firmware?
No - it fully complies with standard I²C timing specifications for 100 kHz, 400 kHz, and 1 MHz modes. Firmware written for EEPROMs works unchanged, though polling loops can be removed due to NoDelay™ writes.
What is the role of the EXPOSED PAD in the DFN package?
The EXPOSED PAD on the 8-pin DFN variant is electrically unconnected and must not be soldered to the PCB. It serves only as a mechanical thermal relief structure and has no electrical function or grounding requirement.
Can FM24CL64B-GTR operate reliably at 2.7 V and +85 °C simultaneously?
Yes - all key specifications including 1-MHz I²C operation, 10¹⁴ endurance, and 151-year data retention are guaranteed across the full industrial range (2.7 V to 3.65 V, –40 °C to +85 °C), validated per JEDEC JESD47 and JESD22-A108.
FM24CL64B-GTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- F-RAM™
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FRAM
- Technology:
- FRAM (Ferroelectric RAM)
- Memory Size:
- 64Kbit
- Memory Organization:
- 8K x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 1 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- 550 ns
- Voltage - Supply:
- 2.7V ~ 3.65V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
FM24CL64B-GTR FAQ
1.How can I place an order for FM24CL64B-GTR through Aetrix?
Please submit a Request for Quotation (RFQ) for FM24CL64B-GTR 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 FM24CL64B-GTR reliable?
The price and inventory of FM24CL64B-GTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for FM24CL64B-GTR is usually 5 days.
3.What payment methods are accepted for FM24CL64B-GTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for FM24CL64B-GTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for FM24CL64B-GTR?
FM24CL64B-GTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your FM24CL64B-GTR 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 FM24CL64B-GTR?
For technical support, including FM24CL64B-GTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your FM24CL64B-GTR requirements.
6.How does Aetrix verify that FM24CL64B-GTR is sourced from the original manufacturer or authorized distributors?
All FM24CL64B-GTR 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 FM24CL64B-GTR meets industry standards.
7.What is the process for return or replacement of FM24CL64B-GTR?
All FM24CL64B-GTR units undergo pre-shipment inspection (PSI). If there is an issue with FM24CL64B-GTR, 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 FM24CL64B-GTR part is unused and in its original packaging.
Return procedure for FM24CL64B-GTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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