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Serial F-RAM Memory

The I2C interface is a widely used master, multi-slave protocol using a serial clock (SCL) and a serial data line (SDA). Multiple memory devices can reside on the I2C bus by using the device select pins A0-A2 on selected parts. The I2C protocol is designed for multi-drop applications as well.

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I2C Interface
PartDensityIDD@maxMax. Bus SpeedPackageVddAEC-Q100
FM24C512 512Kb1.5mA1MHzEIAJ SOIC85V
FM24C256256Kb1.2mA1MHzEIAJ SOIC85V
FM24CL64 64Kb400uA1MHzSOIC8 or DFN82.7-3.6VGrade 3 (-40 to +85C)
FM24C6464Kb1.2mA1MHz8-Pin SOIC5VGrade 3 (-40 to +85C)
FM24CL1616Kb400uA1MHzSOIC8 or DFN82.7-3.6VGrade 3 (-40 to +85C)
FM24C16A16Kb1.0mA1MHz8-Pin SOIC5V
FM24CL044Kb300uA1MHz8-Pin SOIC2.7-3.6V
FM24C04A4Kb1.0mA1MHz8-Pin SOIC5V
Top I2C Interface FAQs
Q: A common issue with I2C devices in general (F-RAM included) is that reads are not easily terminated due to microcontroller timing problems, multi-master issues, or a brownout condition. How do I interrupt a pending memory read?
Q: What are the key advantages over EEPROM and Flash?
Q: Why do I2C AC specifications have 3 columns?
Q: Why use I2C over SPI, or vice versa?
SPI Interface
PartDensityIDD@maxMax. Bus SpeedPackageVddAEC-Q100
FM25H202Mb10mA40MHzTDFN82.7-3.6V
FM25L512512Kb12mA20MHzTDFN83.0-3.6V
FM25L256B256Kb10mA20MHzSOIC8 or DFN82.7-3.6V
FM25L256256Kb10mA20MHzSOIC8 or DFN82.7-3.6V
FM25256B256Kb15mA20MHz8-Pin SOIC4.0-5.5V
FM25256256Kb15mA20MHz8-Pin SOIC4.0-5.5V
FM25CL64-GA64Kb7mA16MHz8-Pin SOIC3.0-3.6VGrade 1 (-40 to +125C)
FM25CL6464Kb10mA20MHzSOIC8 or DFN82.7-3.6V
FM25640-GA64Kb2.7mA4MHz8-Pin SOIC4.5-5.5VGrade 1 (-40 to +125C)
FM2564064Kb3.0mA5MHz8-Pin SOIC5VGrade 3 (-40 to +85C)
FM25L1616Kb5.5mA18MHzSOIC8 or DFN82.7-3.6VGrade 3 (-40 to +85C)
FM25C160-GA16Kb6.5mA15MHz8-Pin SOIC5VGrade 1 (-40 to +125C)
FM25C16016Kb8mA20MHz8-Pin SOIC5VGrade 3 (-40 to +85C)
FM25040A-GA4Kb6mA14MHz8-Pin SOIC5VGrade 1 (-40 to +125C)
FM25L044Kb6mA14MHzSOIC8 or DFN82.7-3.6V
FM25L04-GA4Kb2.2mA10MHz8-Pin SOIC3.0-3.6VGrade 1 (-40 to +125C)
FM25040A4Kb8mA20MHz8-Pin SOIC5V
Top SPI Interface FAQs
Q: What are the key advantages over EEPROM and Flash?
Q: Why can’t I get SPI writes to work?
Q: Why use I2C over SPI, or vice versa?
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