FM24C64B-G Cypress Semiconductor Integrated Circuit (Small Outline Packages) In Stock
The Cypress FM24C64B-G is a 64 kbit serial FRAM memory with a 2-wire I2C interface running at up to 1 MHz and a supply voltage of 4.5 V to 5.5 V in an 8-pin SOIC package. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Cypress Semiconductor
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- FM24C64B-G Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.2353(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 64 kbit FRAM with unlimited read/write endurance — no write-wear-out like Flash or EEPROM
- High-speed I2C interface: up to 1 MHz clock for fast data logging and configuration storage
- Wide supply voltage: 4.5 V to 5.5 V for compatibility with 5 V microcontroller systems
- Compact 8-pin SOIC package for easy PCB integration
- Non-volatile storage with near-zero write latency — no page-write delay required
Applications
The FM24C64B-G is ideal for data logging, configuration storage, and real-time parameter saving in industrial controls, smart meters, and medical monitoring equipment. Its unlimited write endurance and 1 MHz I2C speed make it a superior alternative to EEPROM where frequent writes to 64 kbit of non-volatile memory are required. The 5 V supply compatibility allows direct interfacing with legacy microcontrollers and single-supply embedded systems.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How does the FM24C64B-G FRAM endurance compare to EEPROM in a data-logging application?
The FM24C64B-G FRAM offers unlimited read/write endurance, compared to the 1 million cycle limit typical of EEPROM. In a data-logging system writing every second, EEPROM would wear out in roughly 11 days of continuous operation, while the FM24C64B-G handles the same 64 kbit of data indefinitely without performance degradation.
At what I2C clock speed does the FM24C64B-G operate and how does this benefit real-time systems?
The FM24C64B-G supports I2C operation up to 1 MHz (Fast-mode Plus). At this speed, writing 64 kbit (8 kbytes) of data completes in approximately 640 µs, making it fast enough for real-time event logging and configuration updates in embedded control systems without blocking the CPU for long periods.
What supply voltage does the FM24C64B-G require and which microcontroller families is it compatible with?
The FM24C64B-G operates from 4.5 V to 5.5 V, making it directly compatible with 5 V microcontroller families such as AVR, PIC, and legacy 8051 architectures. It is housed in an 8-pin SOIC package, which is widely supported by standard PCB footprints and automated assembly processes.
For which applications is the FM24C64B-G a better choice than SPI Flash memory?
The FM24C64B-G is preferable to SPI Flash in applications requiring frequent, small random writes to non-volatile storage, such as smart meters logging 64 kbit of readings every few seconds or wearable medical monitors saving patient data continuously. Unlike Flash, FRAM requires no erase cycle before writing, resulting in write latency under 1 µs per byte compared to milliseconds for Flash page erase operations.
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About Cypress Semiconductor
Cypress Semiconductor is a leading electronic component manufacturer. FindMyChip sources Cypress Semiconductor ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $2.2875 | $2.29 |
| 3+ | $2.0070 | $6.02 |
| 42+ | $1.3725 | $57.65 |
| 110+ | $1.2353 | $135.88 |
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