The 550 ns access time is the time from the I²C slave address match to the first data bit on the SDA line. On a 1 MHz bus, the SCL period is 1 µs.
The FM24CL64B-G comes in an 8-pin SOIC (3.90 mm body width), surface-mount.
Cypress FM24CL64B-G 64Kbit I²C FRAM, 1 MHz, 550 ns
MPNFM24CL64B-G
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Cypress FM24CL64B-G, F-RAM™ Series, 64Kbit FRAM, I²C, 1 MHz, 550 ns access time, 2.7V–3.65V, -40°C to 85°C, 8-SOIC.
$3.4300Ref. price · indicative, final on quote
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026
Specifications
| Parameter | Value |
|---|---|
| Series | F-RAM™ |
| Memory type | Non-Volatile |
| Mounting | Surface Mount |
| Supply voltage | 2.7V ~ 3.65V |
| Clock frequency | 1 MHz |
| Memory interface | I²C |
| Operating temperature | -40°C~85°C(TA) |
| Package | Tube |
| Technology | FRAM (Ferroelectric RAM) |
| Access time | 550 ns |
| Memory size | 64Kbit |
| Memory format | FRAM |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
| Memory organization | 8K x 8 |
Product details
Frequently asked questions
What is the closest pin-compatible alternative to FM24CL64B-G in this component family?
Within the same Cypress F-RAM family, the FM24CL64B-G is the standard 64Kbit I²C part in an 8-SOIC package. Pin-compatible alternatives from other vendors include the Fujitsu MB85RC64T and the Ramtron (now Infineon) FM24CL64 — both are 64Kbit I²C FRAM in the same SOIC-8 footprint. Verify the supply voltage and clock frequency against your design before substituting.
What is FM24CL64B-G's listed series (F-RAM™) on this component line?
The FM24CL64B-G belongs to the F-RAM™ series from Cypress (now Infineon). F-RAM is Cypress's trademark for ferroelectric RAM.
What is FM24CL64B-G's listed package (Tube) on this component line?
The FM24CL64B-G is supplied in a Tube. The package type is 8-SOIC (0.154", 3.90 mm width), surface-mount.